./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-2.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/pthread-C-DAC/pthread-demo-datarace-2.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 8dedc3ea8e96f333d418860556906c8618bbf50be75cff10b45de6d34fe23444 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:26:40,889 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:26:40,970 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:26:40,975 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:26:40,977 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:26:41,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:26:41,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:26:41,009 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:26:41,010 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:26:41,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:26:41,011 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:26:41,012 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:26:41,012 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:26:41,016 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:26:41,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:26:41,016 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:26:41,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:26:41,017 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:26:41,017 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:26:41,017 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:26:41,017 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:26:41,020 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:26:41,020 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:26:41,020 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:26:41,021 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:26:41,021 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:26:41,021 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:26:41,022 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:26:41,022 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:26:41,022 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:26:41,022 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:26:41,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:26:41,023 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:26:41,023 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:26:41,023 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:26:41,023 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:26:41,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:26:41,024 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:26:41,025 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:26:41,025 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:26:41,025 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:26:41,026 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dedc3ea8e96f333d418860556906c8618bbf50be75cff10b45de6d34fe23444 [2024-11-10 14:26:41,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:26:41,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:26:41,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:26:41,305 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:26:41,305 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:26:41,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-2.i [2024-11-10 14:26:42,758 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:26:43,057 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:26:43,059 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-2.i [2024-11-10 14:26:43,082 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f393bb9f0/23d26717544a4df09256dfd421d09c02/FLAGc9ca9f348 [2024-11-10 14:26:43,332 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f393bb9f0/23d26717544a4df09256dfd421d09c02 [2024-11-10 14:26:43,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:26:43,336 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:26:43,340 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:26:43,340 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:26:43,345 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:26:43,346 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:26:43" (1/1) ... [2024-11-10 14:26:43,347 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39720db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:43, skipping insertion in model container [2024-11-10 14:26:43,347 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:26:43" (1/1) ... [2024-11-10 14:26:43,393 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:26:43,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:26:43,989 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:26:44,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:26:44,146 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:26:44,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:44 WrapperNode [2024-11-10 14:26:44,146 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:26:44,147 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:26:44,147 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:26:44,147 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:26:44,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:44" (1/1) ... [2024-11-10 14:26:44,175 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:44" (1/1) ... [2024-11-10 14:26:44,201 INFO L138 Inliner]: procedures = 362, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 123 [2024-11-10 14:26:44,201 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:26:44,202 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:26:44,202 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:26:44,202 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:26:44,209 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:44" (1/1) ... [2024-11-10 14:26:44,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:44" (1/1) ... [2024-11-10 14:26:44,212 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:44" (1/1) ... [2024-11-10 14:26:44,212 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:44" (1/1) ... [2024-11-10 14:26:44,218 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:44" (1/1) ... [2024-11-10 14:26:44,218 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:44" (1/1) ... [2024-11-10 14:26:44,222 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:44" (1/1) ... [2024-11-10 14:26:44,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:44" (1/1) ... [2024-11-10 14:26:44,225 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:26:44,226 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:26:44,226 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:26:44,227 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:26:44,228 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:44" (1/1) ... [2024-11-10 14:26:44,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:26:44,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:26:44,282 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 14:26:44,291 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 14:26:44,337 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2024-11-10 14:26:44,337 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2024-11-10 14:26:44,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:26:44,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:26:44,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:26:44,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:26:44,342 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 14:26:44,505 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:26:44,507 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:26:44,694 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:26:44,694 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:26:44,713 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:26:44,714 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:26:44,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:26:44 BoogieIcfgContainer [2024-11-10 14:26:44,714 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:26:44,716 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:26:44,716 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:26:44,719 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:26:44,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:26:43" (1/3) ... [2024-11-10 14:26:44,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bdf8d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:26:44, skipping insertion in model container [2024-11-10 14:26:44,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:44" (2/3) ... [2024-11-10 14:26:44,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bdf8d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:26:44, skipping insertion in model container [2024-11-10 14:26:44,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:26:44" (3/3) ... [2024-11-10 14:26:44,722 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-2.i [2024-11-10 14:26:44,733 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:26:44,734 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-10 14:26:44,734 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:26:44,786 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 14:26:44,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 166 transitions, 339 flow [2024-11-10 14:26:44,879 INFO L124 PetriNetUnfolderBase]: 8/165 cut-off events. [2024-11-10 14:26:44,879 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:26:44,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 165 events. 8/165 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 124 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2024-11-10 14:26:44,886 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 166 transitions, 339 flow [2024-11-10 14:26:44,896 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 157 transitions, 320 flow [2024-11-10 14:26:44,904 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:26:44,914 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;@3ab0f6d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:26:44,914 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-10 14:26:44,944 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:26:44,944 INFO L124 PetriNetUnfolderBase]: 2/95 cut-off events. [2024-11-10 14:26:44,947 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:26:44,947 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:26:44,948 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] [2024-11-10 14:26:44,949 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:26:44,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:26:44,954 INFO L85 PathProgramCache]: Analyzing trace with hash -964407297, now seen corresponding path program 1 times [2024-11-10 14:26:44,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:26:44,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433004604] [2024-11-10 14:26:44,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:26:44,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:26:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:26:45,289 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 14:26:45,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:26:45,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433004604] [2024-11-10 14:26:45,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433004604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:26:45,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:26:45,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:26:45,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966925406] [2024-11-10 14:26:45,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:26:45,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:26:45,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:26:45,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:26:45,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:26:45,381 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 166 [2024-11-10 14:26:45,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 157 transitions, 320 flow. Second operand has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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 14:26:45,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:26:45,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 166 [2024-11-10 14:26:45,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:26:45,478 INFO L124 PetriNetUnfolderBase]: 18/256 cut-off events. [2024-11-10 14:26:45,478 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-10 14:26:45,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 256 events. 18/256 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 616 event pairs, 3 based on Foata normal form. 20/253 useless extension candidates. Maximal degree in co-relation 210. Up to 30 conditions per place. [2024-11-10 14:26:45,482 INFO L140 encePairwiseOnDemand]: 149/166 looper letters, 9 selfloop transitions, 6 changer transitions 15/152 dead transitions. [2024-11-10 14:26:45,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 152 transitions, 348 flow [2024-11-10 14:26:45,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:26:45,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:26:45,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 455 transitions. [2024-11-10 14:26:45,498 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9136546184738956 [2024-11-10 14:26:45,500 INFO L175 Difference]: Start difference. First operand has 153 places, 157 transitions, 320 flow. Second operand 3 states and 455 transitions. [2024-11-10 14:26:45,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 152 transitions, 348 flow [2024-11-10 14:26:45,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 152 transitions, 344 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:26:45,508 INFO L231 Difference]: Finished difference. Result has 150 places, 137 transitions, 315 flow [2024-11-10 14:26:45,510 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=315, PETRI_PLACES=150, PETRI_TRANSITIONS=137} [2024-11-10 14:26:45,513 INFO L277 CegarLoopForPetriNet]: 153 programPoint places, -3 predicate places. [2024-11-10 14:26:45,514 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 137 transitions, 315 flow [2024-11-10 14:26:45,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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 14:26:45,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:26:45,515 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] [2024-11-10 14:26:45,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:26:45,515 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:26:45,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:26:45,517 INFO L85 PathProgramCache]: Analyzing trace with hash 2142221827, now seen corresponding path program 1 times [2024-11-10 14:26:45,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:26:45,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352970872] [2024-11-10 14:26:45,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:26:45,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:26:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:26:45,668 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 14:26:45,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:26:45,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352970872] [2024-11-10 14:26:45,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352970872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:26:45,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:26:45,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:26:45,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956033614] [2024-11-10 14:26:45,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:26:45,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:26:45,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:26:45,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:26:45,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:26:45,719 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 166 [2024-11-10 14:26:45,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 137 transitions, 315 flow. Second operand has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:26:45,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:26:45,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 166 [2024-11-10 14:26:45,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:26:45,797 INFO L124 PetriNetUnfolderBase]: 36/300 cut-off events. [2024-11-10 14:26:45,798 INFO L125 PetriNetUnfolderBase]: For 104/128 co-relation queries the response was YES. [2024-11-10 14:26:45,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 472 conditions, 300 events. 36/300 cut-off events. For 104/128 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 956 event pairs, 4 based on Foata normal form. 1/269 useless extension candidates. Maximal degree in co-relation 59. Up to 56 conditions per place. [2024-11-10 14:26:45,804 INFO L140 encePairwiseOnDemand]: 160/166 looper letters, 11 selfloop transitions, 7 changer transitions 0/142 dead transitions. [2024-11-10 14:26:45,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 142 transitions, 371 flow [2024-11-10 14:26:45,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:26:45,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:26:45,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 449 transitions. [2024-11-10 14:26:45,812 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9016064257028112 [2024-11-10 14:26:45,812 INFO L175 Difference]: Start difference. First operand has 150 places, 137 transitions, 315 flow. Second operand 3 states and 449 transitions. [2024-11-10 14:26:45,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 142 transitions, 371 flow [2024-11-10 14:26:45,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 142 transitions, 355 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:26:45,817 INFO L231 Difference]: Finished difference. Result has 137 places, 142 transitions, 359 flow [2024-11-10 14:26:45,818 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=359, PETRI_PLACES=137, PETRI_TRANSITIONS=142} [2024-11-10 14:26:45,820 INFO L277 CegarLoopForPetriNet]: 153 programPoint places, -16 predicate places. [2024-11-10 14:26:45,820 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 142 transitions, 359 flow [2024-11-10 14:26:45,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:26:45,821 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:26:45,821 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, 1, 1, 1, 1, 1] [2024-11-10 14:26:45,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:26:45,822 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:26:45,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:26:45,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1268201046, now seen corresponding path program 1 times [2024-11-10 14:26:45,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:26:45,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647939925] [2024-11-10 14:26:45,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:26:45,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:26:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:26:45,931 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 14:26:45,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:26:45,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647939925] [2024-11-10 14:26:45,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647939925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:26:45,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:26:45,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:26:45,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721955049] [2024-11-10 14:26:45,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:26:45,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:26:45,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:26:45,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:26:45,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:26:45,992 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 166 [2024-11-10 14:26:45,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 142 transitions, 359 flow. Second operand has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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 14:26:45,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:26:45,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 166 [2024-11-10 14:26:45,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:26:46,041 INFO L124 PetriNetUnfolderBase]: 52/353 cut-off events. [2024-11-10 14:26:46,041 INFO L125 PetriNetUnfolderBase]: For 185/219 co-relation queries the response was YES. [2024-11-10 14:26:46,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 630 conditions, 353 events. 52/353 cut-off events. For 185/219 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1275 event pairs, 4 based on Foata normal form. 2/322 useless extension candidates. Maximal degree in co-relation 275. Up to 72 conditions per place. [2024-11-10 14:26:46,044 INFO L140 encePairwiseOnDemand]: 160/166 looper letters, 13 selfloop transitions, 9 changer transitions 0/147 dead transitions. [2024-11-10 14:26:46,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 147 transitions, 427 flow [2024-11-10 14:26:46,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:26:46,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:26:46,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions. [2024-11-10 14:26:46,050 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.891566265060241 [2024-11-10 14:26:46,050 INFO L175 Difference]: Start difference. First operand has 137 places, 142 transitions, 359 flow. Second operand 3 states and 444 transitions. [2024-11-10 14:26:46,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 147 transitions, 427 flow [2024-11-10 14:26:46,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 147 transitions, 409 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:26:46,058 INFO L231 Difference]: Finished difference. Result has 139 places, 147 transitions, 413 flow [2024-11-10 14:26:46,058 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=413, PETRI_PLACES=139, PETRI_TRANSITIONS=147} [2024-11-10 14:26:46,059 INFO L277 CegarLoopForPetriNet]: 153 programPoint places, -14 predicate places. [2024-11-10 14:26:46,059 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 147 transitions, 413 flow [2024-11-10 14:26:46,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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 14:26:46,060 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:26:46,060 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:26:46,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:26:46,061 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:26:46,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:26:46,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1050811434, now seen corresponding path program 1 times [2024-11-10 14:26:46,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:26:46,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256801452] [2024-11-10 14:26:46,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:26:46,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:26:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:26:46,109 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:26:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:26:46,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:26:46,166 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:26:46,167 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thread_function_dataraceErr1ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2024-11-10 14:26:46,169 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-10 14:26:46,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-10 14:26:46,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-10 14:26:46,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-10 14:26:46,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 9 remaining) [2024-11-10 14:26:46,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_function_dataraceErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-10 14:26:46,172 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_function_dataraceErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-10 14:26:46,172 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_function_dataraceErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-10 14:26:46,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:26:46,173 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-10 14:26:46,277 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 14:26:46,278 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 14:26:46,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 02:26:46 BasicIcfg [2024-11-10 14:26:46,282 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 14:26:46,283 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 14:26:46,283 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 14:26:46,283 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 14:26:46,284 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:26:44" (3/4) ... [2024-11-10 14:26:46,286 INFO L137 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-10 14:26:46,358 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 14:26:46,359 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 14:26:46,359 INFO L158 Benchmark]: Toolchain (without parser) took 3023.35ms. Allocated memory was 140.5MB in the beginning and 203.4MB in the end (delta: 62.9MB). Free memory was 84.2MB in the beginning and 153.8MB in the end (delta: -69.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 14:26:46,360 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 140.5MB. Free memory was 101.7MB in the beginning and 101.6MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 14:26:46,360 INFO L158 Benchmark]: CACSL2BoogieTranslator took 806.64ms. Allocated memory is still 140.5MB. Free memory was 83.9MB in the beginning and 90.3MB in the end (delta: -6.4MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2024-11-10 14:26:46,362 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.25ms. Allocated memory is still 140.5MB. Free memory was 90.3MB in the beginning and 88.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 14:26:46,362 INFO L158 Benchmark]: Boogie Preprocessor took 23.62ms. Allocated memory is still 140.5MB. Free memory was 88.2MB in the beginning and 86.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 14:26:46,363 INFO L158 Benchmark]: IcfgBuilder took 488.25ms. Allocated memory is still 140.5MB. Free memory was 86.1MB in the beginning and 69.9MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-10 14:26:46,363 INFO L158 Benchmark]: TraceAbstraction took 1566.40ms. Allocated memory was 140.5MB in the beginning and 203.4MB in the end (delta: 62.9MB). Free memory was 69.3MB in the beginning and 163.3MB in the end (delta: -93.9MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. [2024-11-10 14:26:46,363 INFO L158 Benchmark]: Witness Printer took 75.65ms. Allocated memory is still 203.4MB. Free memory was 163.3MB in the beginning and 153.8MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-10 14:26:46,365 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 140.5MB. Free memory was 101.7MB in the beginning and 101.6MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 806.64ms. Allocated memory is still 140.5MB. Free memory was 83.9MB in the beginning and 90.3MB in the end (delta: -6.4MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.25ms. Allocated memory is still 140.5MB. Free memory was 90.3MB in the beginning and 88.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.62ms. Allocated memory is still 140.5MB. Free memory was 88.2MB in the beginning and 86.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 488.25ms. Allocated memory is still 140.5MB. Free memory was 86.1MB in the beginning and 69.9MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1566.40ms. Allocated memory was 140.5MB in the beginning and 203.4MB in the end (delta: 62.9MB). Free memory was 69.3MB in the beginning and 163.3MB in the end (delta: -93.9MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. * Witness Printer took 75.65ms. Allocated memory is still 203.4MB. Free memory was 163.3MB in the beginning and 153.8MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1325]: Data race detected Data race detected The following path leads to a data race: [L1318] 0 int myglobal; VAL [myglobal=0] [L1319] 0 pthread_mutex_t mymutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [myglobal=0] [L1334] 0 pthread_t mythread; VAL [myglobal=0] [L1335] 0 int i; VAL [myglobal=0] [L1336] FCALL, FORK 0 pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0)) VAL [\old(arg)={0:0}, myglobal=0, mythread=-1] [L1336] COND FALSE 0 !(pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0))) VAL [\old(arg)={0:0}, myglobal=0, mythread=-1] [L1346] 0 i=0 VAL [\old(arg)={0:0}, i=0, myglobal=0, mythread=-1] [L1346] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=0, myglobal=0, mythread=-1] [L1322] 1 int i,j; VAL [\old(arg)={0:0}, arg={0:0}, myglobal=0] [L1323] 1 i=0 VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0] [L1323] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0] [L1325] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0] [L1348] EXPR 0 myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=0, myglobal=0, mythread=-1] [L1348] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=0, myglobal=1, mythread=-1] [L1325] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=1] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [1348] and C: j=myglobal [1325] - UnprovableResult [Line: 1348]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1354]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1348]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1355]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1336]: 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: 1328]: 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, 185 locations, 9 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: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 109 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 95 IncrementalHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 42 mSDtfsCounter, 95 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=413occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 0.3s InterpolantComputationTime, 367 NumberOfCodeBlocks, 367 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 261 ConstructedInterpolants, 0 QuantifiedInterpolants, 267 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 14:26:46,398 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