./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton_with-uninit-problems-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton_with-uninit-problems-b.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee95c6207d65de8bda179fc4eddfd8312f741d4c9ea2d4ac3b4363fbcaae8d19 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:02:51,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:02:51,809 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:02:51,815 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:02:51,817 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:02:51,842 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:02:51,843 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:02:51,843 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:02:51,844 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:02:51,846 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:02:51,847 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:02:51,847 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:02:51,848 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:02:51,851 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:02:51,851 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:02:51,851 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:02:51,852 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:02:51,852 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:02:51,852 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:02:51,853 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:02:51,853 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:02:51,854 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:02:51,854 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:02:51,854 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:02:51,855 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:02:51,855 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:02:51,855 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:02:51,855 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:02:51,856 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:02:51,856 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:02:51,856 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:02:51,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:02:51,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:02:51,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:02:51,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:02:51,859 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:02:51,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:02:51,869 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:02:51,869 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:02:51,870 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:02:51,870 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:02:51,870 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee95c6207d65de8bda179fc4eddfd8312f741d4c9ea2d4ac3b4363fbcaae8d19 [2024-10-24 15:02:52,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:02:52,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:02:52,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:02:52,181 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:02:52,182 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:02:52,183 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton_with-uninit-problems-b.i [2024-10-24 15:02:53,665 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:02:53,916 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:02:53,917 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton_with-uninit-problems-b.i [2024-10-24 15:02:53,933 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/775a74935/bf92bed399854cd1ac58a796c50fb209/FLAG414ed43a4 [2024-10-24 15:02:53,947 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/775a74935/bf92bed399854cd1ac58a796c50fb209 [2024-10-24 15:02:53,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:02:53,951 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:02:53,955 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:02:53,955 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:02:53,961 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:02:53,961 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:02:53" (1/1) ... [2024-10-24 15:02:53,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3655e88a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:53, skipping insertion in model container [2024-10-24 15:02:53,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:02:53" (1/1) ... [2024-10-24 15:02:54,011 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:02:54,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:02:54,465 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:02:54,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:02:54,624 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:02:54,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54 WrapperNode [2024-10-24 15:02:54,625 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:02:54,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:02:54,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:02:54,626 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:02:54,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 15:02:54,650 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 15:02:54,676 INFO L138 Inliner]: procedures = 322, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 44 [2024-10-24 15:02:54,677 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:02:54,678 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:02:54,678 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:02:54,678 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:02:54,688 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 15:02:54,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 15:02:54,692 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 15:02:54,692 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 15:02:54,699 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 15:02:54,704 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 15:02:54,706 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 15:02:54,707 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 15:02:54,711 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:02:54,712 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:02:54,712 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:02:54,712 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:02:54,713 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 15:02:54,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:02:54,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:02:54,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 15:02:54,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 15:02:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:02:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2024-10-24 15:02:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2024-10-24 15:02:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-24 15:02:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-24 15:02:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-24 15:02:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-24 15:02:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-24 15:02:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-24 15:02:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:02:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 15:02:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:02:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:02:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:02:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:02:54,784 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:02:54,981 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:02:54,983 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:02:55,176 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:02:55,176 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:02:55,194 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:02:55,194 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 15:02:55,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:02:55 BoogieIcfgContainer [2024-10-24 15:02:55,196 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:02:55,199 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:02:55,199 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:02:55,203 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:02:55,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:02:53" (1/3) ... [2024-10-24 15:02:55,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a30b360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:02:55, skipping insertion in model container [2024-10-24 15:02:55,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (2/3) ... [2024-10-24 15:02:55,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a30b360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:02:55, skipping insertion in model container [2024-10-24 15:02:55,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:02:55" (3/3) ... [2024-10-24 15:02:55,206 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems-b.i [2024-10-24 15:02:55,223 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:02:55,224 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-10-24 15:02:55,224 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:02:55,352 INFO L143 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2024-10-24 15:02:55,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 214 places, 206 transitions, 509 flow [2024-10-24 15:02:55,471 INFO L124 PetriNetUnfolderBase]: 8/162 cut-off events. [2024-10-24 15:02:55,474 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-24 15:02:55,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 162 events. 8/162 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 185 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 140. Up to 3 conditions per place. [2024-10-24 15:02:55,481 INFO L82 GeneralOperation]: Start removeDead. Operand has 214 places, 206 transitions, 509 flow [2024-10-24 15:02:55,488 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 139 transitions, 329 flow [2024-10-24 15:02:55,502 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:02:55,509 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;@694bc62a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:02:55,510 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-10-24 15:02:55,519 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:02:55,521 INFO L124 PetriNetUnfolderBase]: 0/33 cut-off events. [2024-10-24 15:02:55,521 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:02:55,521 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:02:55,522 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:02:55,523 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 26 more)] === [2024-10-24 15:02:55,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:02:55,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1074545746, now seen corresponding path program 1 times [2024-10-24 15:02:55,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:02:55,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265721780] [2024-10-24 15:02:55,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:02:55,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:02:55,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:02:55,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:02:55,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:02:55,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265721780] [2024-10-24 15:02:55,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265721780] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:02:55,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:02:55,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:02:55,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72194563] [2024-10-24 15:02:55,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:02:55,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:02:55,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:02:55,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:02:55,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:02:55,863 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 208 [2024-10-24 15:02:55,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 139 transitions, 329 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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) [2024-10-24 15:02:55,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:02:55,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 208 [2024-10-24 15:02:55,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:02:56,065 INFO L124 PetriNetUnfolderBase]: 67/533 cut-off events. [2024-10-24 15:02:56,066 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-10-24 15:02:56,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 730 conditions, 533 events. 67/533 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2583 event pairs, 51 based on Foata normal form. 0/428 useless extension candidates. Maximal degree in co-relation 685. Up to 121 conditions per place. [2024-10-24 15:02:56,078 INFO L140 encePairwiseOnDemand]: 205/208 looper letters, 25 selfloop transitions, 2 changer transitions 0/138 dead transitions. [2024-10-24 15:02:56,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 138 transitions, 381 flow [2024-10-24 15:02:56,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:02:56,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:02:56,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 517 transitions. [2024-10-24 15:02:56,108 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8285256410256411 [2024-10-24 15:02:56,110 INFO L175 Difference]: Start difference. First operand has 153 places, 139 transitions, 329 flow. Second operand 3 states and 517 transitions. [2024-10-24 15:02:56,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 138 transitions, 381 flow [2024-10-24 15:02:56,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 138 transitions, 347 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-10-24 15:02:56,119 INFO L231 Difference]: Finished difference. Result has 142 places, 138 transitions, 297 flow [2024-10-24 15:02:56,122 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=297, PETRI_PLACES=142, PETRI_TRANSITIONS=138} [2024-10-24 15:02:56,128 INFO L277 CegarLoopForPetriNet]: 153 programPoint places, -11 predicate places. [2024-10-24 15:02:56,129 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 138 transitions, 297 flow [2024-10-24 15:02:56,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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) [2024-10-24 15:02:56,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:02:56,130 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:02:56,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:02:56,142 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 26 more)] === [2024-10-24 15:02:56,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:02:56,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1496740057, now seen corresponding path program 1 times [2024-10-24 15:02:56,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:02:56,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736536227] [2024-10-24 15:02:56,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:02:56,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:02:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:02:56,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:02:56,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:02:56,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736536227] [2024-10-24 15:02:56,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736536227] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:02:56,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:02:56,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:02:56,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867771919] [2024-10-24 15:02:56,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:02:56,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:02:56,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:02:56,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:02:56,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:02:56,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 208 [2024-10-24 15:02:56,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 138 transitions, 297 flow. Second operand has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 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) [2024-10-24 15:02:56,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:02:56,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 208 [2024-10-24 15:02:56,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:02:56,530 INFO L124 PetriNetUnfolderBase]: 313/1160 cut-off events. [2024-10-24 15:02:56,530 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-10-24 15:02:56,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1689 conditions, 1160 events. 313/1160 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 7630 event pairs, 188 based on Foata normal form. 0/992 useless extension candidates. Maximal degree in co-relation 1649. Up to 473 conditions per place. [2024-10-24 15:02:56,543 INFO L140 encePairwiseOnDemand]: 198/208 looper letters, 33 selfloop transitions, 4 changer transitions 0/139 dead transitions. [2024-10-24 15:02:56,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 139 transitions, 376 flow [2024-10-24 15:02:56,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:02:56,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:02:56,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 508 transitions. [2024-10-24 15:02:56,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8141025641025641 [2024-10-24 15:02:56,548 INFO L175 Difference]: Start difference. First operand has 142 places, 138 transitions, 297 flow. Second operand 3 states and 508 transitions. [2024-10-24 15:02:56,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 139 transitions, 376 flow [2024-10-24 15:02:56,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 139 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:02:56,555 INFO L231 Difference]: Finished difference. Result has 137 places, 136 transitions, 309 flow [2024-10-24 15:02:56,556 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=309, PETRI_PLACES=137, PETRI_TRANSITIONS=136} [2024-10-24 15:02:56,557 INFO L277 CegarLoopForPetriNet]: 153 programPoint places, -16 predicate places. [2024-10-24 15:02:56,557 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 136 transitions, 309 flow [2024-10-24 15:02:56,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 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) [2024-10-24 15:02:56,558 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:02:56,558 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:02:56,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:02:56,558 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 26 more)] === [2024-10-24 15:02:56,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:02:56,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1529408362, now seen corresponding path program 1 times [2024-10-24 15:02:56,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:02:56,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773117769] [2024-10-24 15:02:56,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:02:56,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:02:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:02:56,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:02:56,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:02:56,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773117769] [2024-10-24 15:02:56,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773117769] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:02:56,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:02:56,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:02:56,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722117090] [2024-10-24 15:02:56,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:02:56,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:02:56,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:02:56,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:02:56,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:02:56,811 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 208 [2024-10-24 15:02:56,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 136 transitions, 309 flow. Second operand has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 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) [2024-10-24 15:02:56,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:02:56,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 208 [2024-10-24 15:02:56,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:02:57,010 INFO L124 PetriNetUnfolderBase]: 328/1236 cut-off events. [2024-10-24 15:02:57,011 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-10-24 15:02:57,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1877 conditions, 1236 events. 328/1236 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 9188 event pairs, 194 based on Foata normal form. 0/1028 useless extension candidates. Maximal degree in co-relation 1838. Up to 445 conditions per place. [2024-10-24 15:02:57,024 INFO L140 encePairwiseOnDemand]: 201/208 looper letters, 31 selfloop transitions, 6 changer transitions 0/144 dead transitions. [2024-10-24 15:02:57,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 144 transitions, 402 flow [2024-10-24 15:02:57,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:02:57,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:02:57,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 524 transitions. [2024-10-24 15:02:57,027 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8397435897435898 [2024-10-24 15:02:57,027 INFO L175 Difference]: Start difference. First operand has 137 places, 136 transitions, 309 flow. Second operand 3 states and 524 transitions. [2024-10-24 15:02:57,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 144 transitions, 402 flow [2024-10-24 15:02:57,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 144 transitions, 402 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:02:57,031 INFO L231 Difference]: Finished difference. Result has 141 places, 141 transitions, 355 flow [2024-10-24 15:02:57,031 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=355, PETRI_PLACES=141, PETRI_TRANSITIONS=141} [2024-10-24 15:02:57,032 INFO L277 CegarLoopForPetriNet]: 153 programPoint places, -12 predicate places. [2024-10-24 15:02:57,032 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 141 transitions, 355 flow [2024-10-24 15:02:57,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 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) [2024-10-24 15:02:57,033 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:02:57,036 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:02:57,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:02:57,036 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 26 more)] === [2024-10-24 15:02:57,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:02:57,037 INFO L85 PathProgramCache]: Analyzing trace with hash -471762434, now seen corresponding path program 1 times [2024-10-24 15:02:57,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:02:57,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087095191] [2024-10-24 15:02:57,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:02:57,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:02:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:02:57,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:02:57,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:02:57,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087095191] [2024-10-24 15:02:57,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087095191] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:02:57,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:02:57,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:02:57,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142108013] [2024-10-24 15:02:57,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:02:57,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:02:57,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:02:57,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:02:57,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:02:57,207 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 208 [2024-10-24 15:02:57,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 141 transitions, 355 flow. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 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) [2024-10-24 15:02:57,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:02:57,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 208 [2024-10-24 15:02:57,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:02:57,511 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([366] L1116-4-->L1116-5: Formula: (= |v_#race_1| (store |v_#race_2| v_~v~0.base_3 (store (select |v_#race_2| v_~v~0.base_3) v_~v~0.offset_3 |v_thread2Thread1of1ForFork4_#t~nondet5_3|))) InVars {#race=|v_#race_2|, ~v~0.offset=v_~v~0.offset_3, thread2Thread1of1ForFork4_#t~nondet5=|v_thread2Thread1of1ForFork4_#t~nondet5_3|, ~v~0.base=v_~v~0.base_3} OutVars{#race=|v_#race_1|, ~v~0.offset=v_~v~0.offset_3, thread2Thread1of1ForFork4_#t~nondet5=|v_thread2Thread1of1ForFork4_#t~nondet5_3|, ~v~0.base=v_~v~0.base_3} AuxVars[] AssignedVars[#race][124], [146#L1132-4true, Black: 226#(= (select (select |#race| ~v~0.base) ~v~0.offset) |thread2Thread1of1ForFork0_#t~nondet5|), 200#L1116-5true, 32#L1121-6true, 224#true, 14#L1116-6true, 229#true, 122#L1142-4true, 84#L1116-5true, 222#(= |#race~v~0| 0), Black: 220#true]) [2024-10-24 15:02:57,511 INFO L294 olderBase$Statistics]: this new event has 85 ancestors and is cut-off event [2024-10-24 15:02:57,511 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-10-24 15:02:57,512 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-10-24 15:02:57,512 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-10-24 15:02:57,552 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([342] L1116-4-->L1116-5: Formula: (= |v_#race_1| (store |v_#race_2| v_~v~0.base_3 (store (select |v_#race_2| v_~v~0.base_3) v_~v~0.offset_3 |v_thread2Thread1of1ForFork1_#t~nondet5_3|))) InVars {#race=|v_#race_2|, thread2Thread1of1ForFork1_#t~nondet5=|v_thread2Thread1of1ForFork1_#t~nondet5_3|, ~v~0.offset=v_~v~0.offset_3, ~v~0.base=v_~v~0.base_3} OutVars{#race=|v_#race_1|, thread2Thread1of1ForFork1_#t~nondet5=|v_thread2Thread1of1ForFork1_#t~nondet5_3|, ~v~0.offset=v_~v~0.offset_3, ~v~0.base=v_~v~0.base_3} AuxVars[] AssignedVars[#race][126], [146#L1132-4true, 200#L1116-5true, Black: 226#(= (select (select |#race| ~v~0.base) ~v~0.offset) |thread2Thread1of1ForFork0_#t~nondet5|), 224#true, 14#L1116-6true, 122#L1142-4true, 229#true, 84#L1116-5true, 109#L1122true, 222#(= |#race~v~0| 0), Black: 220#true]) [2024-10-24 15:02:57,553 INFO L294 olderBase$Statistics]: this new event has 86 ancestors and is cut-off event [2024-10-24 15:02:57,553 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-10-24 15:02:57,553 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-10-24 15:02:57,553 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-10-24 15:02:57,554 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([366] L1116-4-->L1116-5: Formula: (= |v_#race_1| (store |v_#race_2| v_~v~0.base_3 (store (select |v_#race_2| v_~v~0.base_3) v_~v~0.offset_3 |v_thread2Thread1of1ForFork4_#t~nondet5_3|))) InVars {#race=|v_#race_2|, ~v~0.offset=v_~v~0.offset_3, thread2Thread1of1ForFork4_#t~nondet5=|v_thread2Thread1of1ForFork4_#t~nondet5_3|, ~v~0.base=v_~v~0.base_3} OutVars{#race=|v_#race_1|, ~v~0.offset=v_~v~0.offset_3, thread2Thread1of1ForFork4_#t~nondet5=|v_thread2Thread1of1ForFork4_#t~nondet5_3|, ~v~0.base=v_~v~0.base_3} AuxVars[] AssignedVars[#race][115], [146#L1132-4true, Black: 226#(= (select (select |#race| ~v~0.base) ~v~0.offset) |thread2Thread1of1ForFork0_#t~nondet5|), 200#L1116-5true, 224#true, 14#L1116-6true, 229#true, 122#L1142-4true, 84#L1116-5true, 109#L1122true, 222#(= |#race~v~0| 0), Black: 220#true]) [2024-10-24 15:02:57,554 INFO L294 olderBase$Statistics]: this new event has 86 ancestors and is cut-off event [2024-10-24 15:02:57,555 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-10-24 15:02:57,555 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-10-24 15:02:57,555 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-10-24 15:02:57,557 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([342] L1116-4-->L1116-5: Formula: (= |v_#race_1| (store |v_#race_2| v_~v~0.base_3 (store (select |v_#race_2| v_~v~0.base_3) v_~v~0.offset_3 |v_thread2Thread1of1ForFork1_#t~nondet5_3|))) InVars {#race=|v_#race_2|, thread2Thread1of1ForFork1_#t~nondet5=|v_thread2Thread1of1ForFork1_#t~nondet5_3|, ~v~0.offset=v_~v~0.offset_3, ~v~0.base=v_~v~0.base_3} OutVars{#race=|v_#race_1|, thread2Thread1of1ForFork1_#t~nondet5=|v_thread2Thread1of1ForFork1_#t~nondet5_3|, ~v~0.offset=v_~v~0.offset_3, ~v~0.base=v_~v~0.base_3} AuxVars[] AssignedVars[#race][116], [146#L1132-4true, 4#thread2Err1ASSERT_VIOLATIONDATA_RACEtrue, 200#L1116-5true, Black: 226#(= (select (select |#race| ~v~0.base) ~v~0.offset) |thread2Thread1of1ForFork0_#t~nondet5|), 224#true, 122#L1142-4true, 229#true, 84#L1116-5true, 109#L1122true, 222#(= |#race~v~0| 0), Black: 220#true]) [2024-10-24 15:02:57,558 INFO L294 olderBase$Statistics]: this new event has 86 ancestors and is cut-off event [2024-10-24 15:02:57,558 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-10-24 15:02:57,558 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-10-24 15:02:57,558 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-10-24 15:02:57,587 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([366] L1116-4-->L1116-5: Formula: (= |v_#race_1| (store |v_#race_2| v_~v~0.base_3 (store (select |v_#race_2| v_~v~0.base_3) v_~v~0.offset_3 |v_thread2Thread1of1ForFork4_#t~nondet5_3|))) InVars {#race=|v_#race_2|, ~v~0.offset=v_~v~0.offset_3, thread2Thread1of1ForFork4_#t~nondet5=|v_thread2Thread1of1ForFork4_#t~nondet5_3|, ~v~0.base=v_~v~0.base_3} OutVars{#race=|v_#race_1|, ~v~0.offset=v_~v~0.offset_3, thread2Thread1of1ForFork4_#t~nondet5=|v_thread2Thread1of1ForFork4_#t~nondet5_3|, ~v~0.base=v_~v~0.base_3} AuxVars[] AssignedVars[#race][93], [146#L1132-4true, 4#thread2Err1ASSERT_VIOLATIONDATA_RACEtrue, 200#L1116-5true, Black: 226#(= (select (select |#race| ~v~0.base) ~v~0.offset) |thread2Thread1of1ForFork0_#t~nondet5|), 224#true, 229#true, 122#L1142-4true, 84#L1116-5true, 109#L1122true, 222#(= |#race~v~0| 0), Black: 220#true]) [2024-10-24 15:02:57,587 INFO L294 olderBase$Statistics]: this new event has 86 ancestors and is cut-off event [2024-10-24 15:02:57,588 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-10-24 15:02:57,588 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-10-24 15:02:57,588 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-10-24 15:02:57,622 INFO L124 PetriNetUnfolderBase]: 956/2676 cut-off events. [2024-10-24 15:02:57,623 INFO L125 PetriNetUnfolderBase]: For 862/1094 co-relation queries the response was YES. [2024-10-24 15:02:57,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5463 conditions, 2676 events. 956/2676 cut-off events. For 862/1094 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 22699 event pairs, 378 based on Foata normal form. 1/2258 useless extension candidates. Maximal degree in co-relation 5422. Up to 1059 conditions per place. [2024-10-24 15:02:57,659 INFO L140 encePairwiseOnDemand]: 201/208 looper letters, 34 selfloop transitions, 9 changer transitions 0/152 dead transitions. [2024-10-24 15:02:57,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 152 transitions, 483 flow [2024-10-24 15:02:57,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:02:57,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:02:57,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 525 transitions. [2024-10-24 15:02:57,661 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8413461538461539 [2024-10-24 15:02:57,661 INFO L175 Difference]: Start difference. First operand has 141 places, 141 transitions, 355 flow. Second operand 3 states and 525 transitions. [2024-10-24 15:02:57,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 152 transitions, 483 flow [2024-10-24 15:02:57,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 152 transitions, 465 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:02:57,674 INFO L231 Difference]: Finished difference. Result has 143 places, 148 transitions, 419 flow [2024-10-24 15:02:57,675 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=419, PETRI_PLACES=143, PETRI_TRANSITIONS=148} [2024-10-24 15:02:57,676 INFO L277 CegarLoopForPetriNet]: 153 programPoint places, -10 predicate places. [2024-10-24 15:02:57,677 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 148 transitions, 419 flow [2024-10-24 15:02:57,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 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) [2024-10-24 15:02:57,677 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:02:57,678 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:02:57,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:02:57,678 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 26 more)] === [2024-10-24 15:02:57,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:02:57,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1392450627, now seen corresponding path program 1 times [2024-10-24 15:02:57,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:02:57,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363025812] [2024-10-24 15:02:57,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:02:57,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:02:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:02:57,711 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 15:02:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:02:57,758 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 15:02:57,759 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 15:02:57,760 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (28 of 29 remaining) [2024-10-24 15:02:57,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 29 remaining) [2024-10-24 15:02:57,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 29 remaining) [2024-10-24 15:02:57,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 29 remaining) [2024-10-24 15:02:57,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 29 remaining) [2024-10-24 15:02:57,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 29 remaining) [2024-10-24 15:02:57,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2024-10-24 15:02:57,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2024-10-24 15:02:57,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2024-10-24 15:02:57,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2024-10-24 15:02:57,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2024-10-24 15:02:57,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2024-10-24 15:02:57,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2024-10-24 15:02:57,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2024-10-24 15:02:57,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2024-10-24 15:02:57,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 29 remaining) [2024-10-24 15:02:57,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 29 remaining) [2024-10-24 15:02:57,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 29 remaining) [2024-10-24 15:02:57,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 29 remaining) [2024-10-24 15:02:57,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 29 remaining) [2024-10-24 15:02:57,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 29 remaining) [2024-10-24 15:02:57,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2024-10-24 15:02:57,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2024-10-24 15:02:57,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2024-10-24 15:02:57,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2024-10-24 15:02:57,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2024-10-24 15:02:57,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2024-10-24 15:02:57,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2024-10-24 15:02:57,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2024-10-24 15:02:57,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 15:02:57,770 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-24 15:02:57,859 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 15:02:57,859 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 15:02:57,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:02:57 BasicIcfg [2024-10-24 15:02:57,866 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 15:02:57,867 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 15:02:57,867 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 15:02:57,867 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 15:02:57,868 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:02:55" (3/4) ... [2024-10-24 15:02:57,870 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 15:02:57,871 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 15:02:57,873 INFO L158 Benchmark]: Toolchain (without parser) took 3920.41ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 85.9MB in the beginning and 194.1MB in the end (delta: -108.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:02:57,875 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 165.7MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:02:57,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 670.66ms. Allocated memory is still 165.7MB. Free memory was 85.7MB in the beginning and 119.4MB in the end (delta: -33.7MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2024-10-24 15:02:57,876 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.93ms. Allocated memory is still 165.7MB. Free memory was 119.4MB in the beginning and 117.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:02:57,878 INFO L158 Benchmark]: Boogie Preprocessor took 33.55ms. Allocated memory is still 165.7MB. Free memory was 117.4MB in the beginning and 115.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:02:57,878 INFO L158 Benchmark]: RCFGBuilder took 484.42ms. Allocated memory is still 165.7MB. Free memory was 115.3MB in the beginning and 119.9MB in the end (delta: -4.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-24 15:02:57,878 INFO L158 Benchmark]: TraceAbstraction took 2667.46ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 119.9MB in the beginning and 194.1MB in the end (delta: -74.2MB). Peak memory consumption was 111.4MB. Max. memory is 16.1GB. [2024-10-24 15:02:57,879 INFO L158 Benchmark]: Witness Printer took 3.99ms. Allocated memory is still 239.1MB. Free memory is still 194.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:02:57,880 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 165.7MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 670.66ms. Allocated memory is still 165.7MB. Free memory was 85.7MB in the beginning and 119.4MB in the end (delta: -33.7MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.93ms. Allocated memory is still 165.7MB. Free memory was 119.4MB in the beginning and 117.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.55ms. Allocated memory is still 165.7MB. Free memory was 117.4MB in the beginning and 115.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 484.42ms. Allocated memory is still 165.7MB. Free memory was 115.3MB in the beginning and 119.9MB in the end (delta: -4.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2667.46ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 119.9MB in the beginning and 194.1MB in the end (delta: -74.2MB). Peak memory consumption was 111.4MB. Max. memory is 16.1GB. * Witness Printer took 3.99ms. Allocated memory is still 239.1MB. Free memory is still 194.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1116]: Data race detected Data race detected The following path leads to a data race: [L1108] 0 char *v; VAL [v={0:0}] [L1141] 0 pthread_t t; VAL [v={0:0}] [L1142] FCALL, FORK 0 pthread_create(&t, 0, thread0, 0) VAL [\old(arg)={0:0}, t=-3, v={0:0}] [L1126] 1 pthread_t t1, t2, t3, t4, t5; VAL [\old(arg)={0:0}, arg={0:0}, v={0:0}] [L1127] FCALL, FORK 1 pthread_create(&t1, 0, thread1, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, t1=-2, v={0:0}] [L1111] 2 v = malloc(sizeof(char)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, t1=-2, v={-1:0}] [L1112] 2 return 0; VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, t1=-2, v={-1:0}] [L1128] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, t1=-2, v={-1:0}] [L1129] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, t1=-2, t2=-1, v={-1:0}] [L1116] EXPR 3 v[0] VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2, t2=-1, v={-1:0}] [L1116] 3 v[0] = 'X' VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2, t2=-1, v={-1:0}] [L1130] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2, t2=-1, t3=0, v={-1:0}] [L1121] EXPR 4 v[0] VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2, t2=-1, t3=0, v={-1:0}] [L1121] 4 v[0] = 'Y' VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2, t2=-1, t3=0, v={-1:0}] [L1116] 3 v[0] = 'X' VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2, t2=-1, t3=0, v={-1:0}] 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: v[0] = 'Y' [1121] * C: v[0] [1116] * C: v = malloc(sizeof(char)) [1111] * C: v[0] [1121] and C: v[0] = 'X' [1116] - UnprovableResult [Line: 1132]: 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: 1131]: 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: 1130]: 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: 1129]: 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: 1127]: 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: 1111]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1116]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1121]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1121]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1144]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1144]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1144]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1144]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1142]: 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: 1130]: 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: 1127]: 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: 1131]: 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: 1129]: 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: 1132]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 254 locations, 29 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: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 215 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 285 IncrementalHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 56 mSDtfsCounter, 285 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=419occurred in iteration=4, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 236 NumberOfCodeBlocks, 236 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 188 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-24 15:02:57,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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