./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_38-indexing_malloc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/goblint-regression/04-mutex_38-indexing_malloc.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 68dea9df5539e7fcef3a5df1da960eaa713dc314a245f3b00d1aa4e0736666c8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:28:35,014 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:28:35,082 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:28:35,088 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:28:35,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:28:35,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:28:35,111 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:28:35,111 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:28:35,112 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:28:35,112 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:28:35,113 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:28:35,113 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:28:35,113 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:28:35,114 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:28:35,114 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:28:35,114 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:28:35,115 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:28:35,115 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:28:35,115 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:28:35,116 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:28:35,116 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:28:35,117 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:28:35,117 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:28:35,117 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:28:35,118 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:28:35,118 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:28:35,118 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:28:35,119 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:28:35,119 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:28:35,119 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:28:35,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:28:35,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:28:35,120 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:28:35,120 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:28:35,121 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:28:35,121 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:28:35,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:28:35,122 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:28:35,122 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:28:35,122 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:28:35,123 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:28:35,123 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68dea9df5539e7fcef3a5df1da960eaa713dc314a245f3b00d1aa4e0736666c8 [2024-11-10 14:28:35,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:28:35,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:28:35,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:28:35,404 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:28:35,404 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:28:35,406 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_38-indexing_malloc.i [2024-11-10 14:28:36,859 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:28:37,100 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:28:37,101 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_38-indexing_malloc.i [2024-11-10 14:28:37,126 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d76c8ad2/3729d869d8d242ffbfef943036146d75/FLAGa71b828fa [2024-11-10 14:28:37,140 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d76c8ad2/3729d869d8d242ffbfef943036146d75 [2024-11-10 14:28:37,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:28:37,146 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:28:37,149 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:28:37,150 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:28:37,155 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:28:37,156 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:28:37" (1/1) ... [2024-11-10 14:28:37,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5408a5f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:37, skipping insertion in model container [2024-11-10 14:28:37,158 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:28:37" (1/1) ... [2024-11-10 14:28:37,208 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:28:37,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:28:37,698 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:28:37,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:28:37,868 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:28:37,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:37 WrapperNode [2024-11-10 14:28:37,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:28:37,870 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:28:37,870 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:28:37,870 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:28:37,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:37" (1/1) ... [2024-11-10 14:28:37,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:37" (1/1) ... [2024-11-10 14:28:37,928 INFO L138 Inliner]: procedures = 261, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 87 [2024-11-10 14:28:37,929 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:28:37,930 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:28:37,930 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:28:37,930 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:28:37,938 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:37" (1/1) ... [2024-11-10 14:28:37,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:37" (1/1) ... [2024-11-10 14:28:37,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:37" (1/1) ... [2024-11-10 14:28:37,944 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:37" (1/1) ... [2024-11-10 14:28:37,958 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:37" (1/1) ... [2024-11-10 14:28:37,963 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:37" (1/1) ... [2024-11-10 14:28:37,968 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:37" (1/1) ... [2024-11-10 14:28:37,969 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:37" (1/1) ... [2024-11-10 14:28:37,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:28:37,976 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:28:37,977 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:28:37,977 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:28:37,978 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:37" (1/1) ... [2024-11-10 14:28:37,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:28:37,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:28:38,012 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) [2024-11-10 14:28:38,019 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 [2024-11-10 14:28:38,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:28:38,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 14:28:38,064 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 14:28:38,065 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 14:28:38,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:28:38,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:28:38,066 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:28:38,283 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:28:38,286 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:28:38,472 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:28:38,472 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:28:38,485 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:28:38,485 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:28:38,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:28:38 BoogieIcfgContainer [2024-11-10 14:28:38,485 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:28:38,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:28:38,487 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:28:38,490 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:28:38,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:28:37" (1/3) ... [2024-11-10 14:28:38,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eafa716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:28:38, skipping insertion in model container [2024-11-10 14:28:38,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:37" (2/3) ... [2024-11-10 14:28:38,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eafa716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:28:38, skipping insertion in model container [2024-11-10 14:28:38,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:28:38" (3/3) ... [2024-11-10 14:28:38,493 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_38-indexing_malloc.i [2024-11-10 14:28:38,514 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:28:38,515 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-11-10 14:28:38,516 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:28:38,576 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 14:28:38,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 110 transitions, 227 flow [2024-11-10 14:28:38,658 INFO L124 PetriNetUnfolderBase]: 0/109 cut-off events. [2024-11-10 14:28:38,659 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:28:38,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 109 events. 0/109 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-10 14:28:38,663 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 110 transitions, 227 flow [2024-11-10 14:28:38,668 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 104 transitions, 211 flow [2024-11-10 14:28:38,679 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:28:38,686 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;@d0f56a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:28:38,686 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-10 14:28:38,702 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:28:38,702 INFO L124 PetriNetUnfolderBase]: 0/68 cut-off events. [2024-11-10 14:28:38,703 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:28:38,703 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:38,704 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:28:38,704 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:28:38,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:38,710 INFO L85 PathProgramCache]: Analyzing trace with hash 229001520, now seen corresponding path program 1 times [2024-11-10 14:28:38,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:38,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140185554] [2024-11-10 14:28:38,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:38,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:38,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:39,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:39,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:39,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140185554] [2024-11-10 14:28:39,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140185554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:39,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:39,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:28:39,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986649800] [2024-11-10 14:28:39,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:39,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:28:39,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:39,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:28:39,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:28:39,113 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 110 [2024-11-10 14:28:39,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 104 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2024-11-10 14:28:39,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:39,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 110 [2024-11-10 14:28:39,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:39,164 INFO L124 PetriNetUnfolderBase]: 1/118 cut-off events. [2024-11-10 14:28:39,164 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:28:39,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 118 events. 1/118 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 97 event pairs, 1 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 48. Up to 9 conditions per place. [2024-11-10 14:28:39,167 INFO L140 encePairwiseOnDemand]: 107/110 looper letters, 6 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2024-11-10 14:28:39,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 103 transitions, 225 flow [2024-11-10 14:28:39,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:28:39,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:28:39,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2024-11-10 14:28:39,198 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9272727272727272 [2024-11-10 14:28:39,200 INFO L175 Difference]: Start difference. First operand has 108 places, 104 transitions, 211 flow. Second operand 3 states and 306 transitions. [2024-11-10 14:28:39,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 103 transitions, 225 flow [2024-11-10 14:28:39,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 103 transitions, 224 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:28:39,209 INFO L231 Difference]: Finished difference. Result has 108 places, 103 transitions, 212 flow [2024-11-10 14:28:39,211 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=108, PETRI_TRANSITIONS=103} [2024-11-10 14:28:39,218 INFO L277 CegarLoopForPetriNet]: 108 programPoint places, 0 predicate places. [2024-11-10 14:28:39,218 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 103 transitions, 212 flow [2024-11-10 14:28:39,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2024-11-10 14:28:39,219 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:39,220 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:28:39,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:28:39,221 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:28:39,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:39,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1183462217, now seen corresponding path program 1 times [2024-11-10 14:28:39,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:39,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385951763] [2024-11-10 14:28:39,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:39,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:39,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:39,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:39,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385951763] [2024-11-10 14:28:39,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385951763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:39,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:39,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:28:39,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658118702] [2024-11-10 14:28:39,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:39,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:28:39,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:39,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:28:39,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:28:39,420 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 110 [2024-11-10 14:28:39,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 103 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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) [2024-11-10 14:28:39,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:39,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 110 [2024-11-10 14:28:39,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:39,460 INFO L124 PetriNetUnfolderBase]: 4/127 cut-off events. [2024-11-10 14:28:39,462 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:28:39,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 127 events. 4/127 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 146 event pairs, 2 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 72. Up to 12 conditions per place. [2024-11-10 14:28:39,465 INFO L140 encePairwiseOnDemand]: 106/110 looper letters, 6 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2024-11-10 14:28:39,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 103 transitions, 228 flow [2024-11-10 14:28:39,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:28:39,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:28:39,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2024-11-10 14:28:39,470 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9484848484848485 [2024-11-10 14:28:39,470 INFO L175 Difference]: Start difference. First operand has 108 places, 103 transitions, 212 flow. Second operand 3 states and 313 transitions. [2024-11-10 14:28:39,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 103 transitions, 228 flow [2024-11-10 14:28:39,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 103 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:28:39,475 INFO L231 Difference]: Finished difference. Result has 107 places, 103 transitions, 218 flow [2024-11-10 14:28:39,475 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=107, PETRI_TRANSITIONS=103} [2024-11-10 14:28:39,476 INFO L277 CegarLoopForPetriNet]: 108 programPoint places, -1 predicate places. [2024-11-10 14:28:39,476 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 103 transitions, 218 flow [2024-11-10 14:28:39,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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) [2024-11-10 14:28:39,477 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:39,477 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:28:39,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:28:39,477 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:28:39,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:39,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1839556563, now seen corresponding path program 1 times [2024-11-10 14:28:39,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:39,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9628319] [2024-11-10 14:28:39,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:39,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:40,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:40,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:40,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9628319] [2024-11-10 14:28:40,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9628319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:40,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:40,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:28:40,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061498943] [2024-11-10 14:28:40,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:40,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:28:40,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:40,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:28:40,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:28:40,243 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 110 [2024-11-10 14:28:40,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 103 transitions, 218 flow. Second operand has 6 states, 6 states have (on average 94.5) internal successors, (567), 6 states have internal predecessors, (567), 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) [2024-11-10 14:28:40,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:40,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 110 [2024-11-10 14:28:40,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:40,398 INFO L124 PetriNetUnfolderBase]: 85/318 cut-off events. [2024-11-10 14:28:40,398 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:28:40,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 528 conditions, 318 events. 85/318 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1149 event pairs, 21 based on Foata normal form. 0/306 useless extension candidates. Maximal degree in co-relation 446. Up to 96 conditions per place. [2024-11-10 14:28:40,401 INFO L140 encePairwiseOnDemand]: 98/110 looper letters, 27 selfloop transitions, 25 changer transitions 4/143 dead transitions. [2024-11-10 14:28:40,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 143 transitions, 410 flow [2024-11-10 14:28:40,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:28:40,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:28:40,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 615 transitions. [2024-11-10 14:28:40,405 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9318181818181818 [2024-11-10 14:28:40,405 INFO L175 Difference]: Start difference. First operand has 107 places, 103 transitions, 218 flow. Second operand 6 states and 615 transitions. [2024-11-10 14:28:40,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 143 transitions, 410 flow [2024-11-10 14:28:40,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 143 transitions, 410 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:28:40,409 INFO L231 Difference]: Finished difference. Result has 116 places, 128 transitions, 384 flow [2024-11-10 14:28:40,410 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=384, PETRI_PLACES=116, PETRI_TRANSITIONS=128} [2024-11-10 14:28:40,411 INFO L277 CegarLoopForPetriNet]: 108 programPoint places, 8 predicate places. [2024-11-10 14:28:40,412 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 128 transitions, 384 flow [2024-11-10 14:28:40,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.5) internal successors, (567), 6 states have internal predecessors, (567), 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) [2024-11-10 14:28:40,412 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:40,413 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:28:40,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:28:40,413 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:28:40,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:40,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1506125473, now seen corresponding path program 1 times [2024-11-10 14:28:40,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:40,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663153129] [2024-11-10 14:28:40,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:40,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:40,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:40,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:40,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663153129] [2024-11-10 14:28:40,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663153129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:40,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:40,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:28:40,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047521634] [2024-11-10 14:28:40,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:40,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:28:40,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:40,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:28:40,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:28:40,998 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 110 [2024-11-10 14:28:40,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 128 transitions, 384 flow. Second operand has 6 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 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) [2024-11-10 14:28:40,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:40,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 110 [2024-11-10 14:28:40,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:41,125 INFO L124 PetriNetUnfolderBase]: 140/455 cut-off events. [2024-11-10 14:28:41,125 INFO L125 PetriNetUnfolderBase]: For 185/193 co-relation queries the response was YES. [2024-11-10 14:28:41,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1180 conditions, 455 events. 140/455 cut-off events. For 185/193 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2041 event pairs, 18 based on Foata normal form. 13/467 useless extension candidates. Maximal degree in co-relation 1092. Up to 160 conditions per place. [2024-11-10 14:28:41,132 INFO L140 encePairwiseOnDemand]: 98/110 looper letters, 40 selfloop transitions, 31 changer transitions 18/178 dead transitions. [2024-11-10 14:28:41,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 178 transitions, 772 flow [2024-11-10 14:28:41,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:28:41,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:28:41,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 604 transitions. [2024-11-10 14:28:41,136 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9151515151515152 [2024-11-10 14:28:41,136 INFO L175 Difference]: Start difference. First operand has 116 places, 128 transitions, 384 flow. Second operand 6 states and 604 transitions. [2024-11-10 14:28:41,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 178 transitions, 772 flow [2024-11-10 14:28:41,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 178 transitions, 772 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:28:41,145 INFO L231 Difference]: Finished difference. Result has 125 places, 149 transitions, 606 flow [2024-11-10 14:28:41,147 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=606, PETRI_PLACES=125, PETRI_TRANSITIONS=149} [2024-11-10 14:28:41,148 INFO L277 CegarLoopForPetriNet]: 108 programPoint places, 17 predicate places. [2024-11-10 14:28:41,148 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 149 transitions, 606 flow [2024-11-10 14:28:41,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 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) [2024-11-10 14:28:41,149 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:41,150 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:28:41,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:28:41,150 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:28:41,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:41,152 INFO L85 PathProgramCache]: Analyzing trace with hash -2028322196, now seen corresponding path program 1 times [2024-11-10 14:28:41,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:41,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520390257] [2024-11-10 14:28:41,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:41,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:28:41,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:28:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:28:41,231 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:28:41,232 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:28:41,233 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2024-11-10 14:28:41,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-11-10 14:28:41,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-11-10 14:28:41,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-11-10 14:28:41,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-11-10 14:28:41,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-11-10 14:28:41,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-11-10 14:28:41,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-11-10 14:28:41,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 14:28:41,236 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-10 14:28:41,296 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 14:28:41,297 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 14:28:41,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 02:28:41 BasicIcfg [2024-11-10 14:28:41,304 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 14:28:41,304 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 14:28:41,304 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 14:28:41,304 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 14:28:41,305 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:28:38" (3/4) ... [2024-11-10 14:28:41,307 INFO L137 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-10 14:28:41,375 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 14:28:41,376 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 14:28:41,377 INFO L158 Benchmark]: Toolchain (without parser) took 4230.86ms. Allocated memory was 161.5MB in the beginning and 232.8MB in the end (delta: 71.3MB). Free memory was 83.4MB in the beginning and 111.9MB in the end (delta: -28.5MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. [2024-11-10 14:28:41,377 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 161.5MB. Free memory is still 132.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 14:28:41,378 INFO L158 Benchmark]: CACSL2BoogieTranslator took 719.34ms. Allocated memory is still 161.5MB. Free memory was 83.4MB in the beginning and 122.5MB in the end (delta: -39.1MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2024-11-10 14:28:41,378 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.33ms. Allocated memory is still 161.5MB. Free memory was 122.5MB in the beginning and 120.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 14:28:41,378 INFO L158 Benchmark]: Boogie Preprocessor took 46.19ms. Allocated memory is still 161.5MB. Free memory was 120.4MB in the beginning and 118.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 14:28:41,379 INFO L158 Benchmark]: IcfgBuilder took 509.16ms. Allocated memory is still 161.5MB. Free memory was 118.3MB in the beginning and 121.3MB in the end (delta: -3.0MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2024-11-10 14:28:41,379 INFO L158 Benchmark]: TraceAbstraction took 2816.62ms. Allocated memory was 161.5MB in the beginning and 232.8MB in the end (delta: 71.3MB). Free memory was 120.6MB in the beginning and 121.4MB in the end (delta: -791.3kB). Peak memory consumption was 72.1MB. Max. memory is 16.1GB. [2024-11-10 14:28:41,380 INFO L158 Benchmark]: Witness Printer took 72.24ms. Allocated memory is still 232.8MB. Free memory was 121.4MB in the beginning and 111.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-10 14:28:41,381 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 161.5MB. Free memory is still 132.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 719.34ms. Allocated memory is still 161.5MB. Free memory was 83.4MB in the beginning and 122.5MB in the end (delta: -39.1MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.33ms. Allocated memory is still 161.5MB. Free memory was 122.5MB in the beginning and 120.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.19ms. Allocated memory is still 161.5MB. Free memory was 120.4MB in the beginning and 118.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 509.16ms. Allocated memory is still 161.5MB. Free memory was 118.3MB in the beginning and 121.3MB in the end (delta: -3.0MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2816.62ms. Allocated memory was 161.5MB in the beginning and 232.8MB in the end (delta: 71.3MB). Free memory was 120.6MB in the beginning and 121.4MB in the end (delta: -791.3kB). Peak memory consumption was 72.1MB. Max. memory is 16.1GB. * Witness Printer took 72.24ms. Allocated memory is still 232.8MB. Free memory was 121.4MB in the beginning and 111.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 990]: Data race detected Data race detected The following path leads to a data race: [L987] 0 int* s; VAL [s={0:0}] [L988] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [s={0:0}] [L994] 0 pthread_t id; VAL [s={0:0}] [L995] 0 s = (int*)malloc(sizeof(int)) VAL [s={-2:0}] [L996] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, id=-1, s={-2:0}] [L990] EXPR 1 s[0] VAL [\old(arg)={0:0}, arg={0:0}, s={-2:0}] [L997] EXPR 0 s[0] VAL [\old(arg)={0:0}, arg={0:0}, id=-1, s={-2:0}] [L997] 0 s[0] = 9 VAL [\old(arg)={0:0}, arg={0:0}, id=-1, s={-2:0}] [L990] EXPR 1 s[0] VAL [\old(arg)={0:0}, arg={0:0}, s={-2:0}] [L990] 1 s[0] = 8 VAL [\old(arg)={0:0}, arg={0:0}, s={-2:0}] [L997] 0 s[0] = 9 VAL [\old(arg)={0:0}, arg={0:0}, id=-1, s={-2:0}] [L990] 1 s[0] = 8 VAL [\old(arg)={0:0}, arg={0:0}, s={-2:0}] 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: s[0] [990] * C: s = (int*)malloc(sizeof(int)) [995] * C: s[0] [997] and C: s[0] = 8 [990] - UnprovableResult [Line: 995]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 997]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 997]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 996]: 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: 990]: 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, 128 locations, 8 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: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 91 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 246 IncrementalHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 20 mSDtfsCounter, 246 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=606occurred in iteration=4, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 405 NumberOfCodeBlocks, 405 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 476 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! [2024-11-10 14:28:41,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE