./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_37-traces-ex-4_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_37-traces-ex-4_true.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 5fb05d1d9f477ac46601c94c33a401c10a8ea916dae173fdeb0112a4de2b3b31 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:52:41,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:52:41,872 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:52:41,879 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:52:41,880 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:52:41,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:52:41,919 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:52:41,920 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:52:41,920 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:52:41,921 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:52:41,921 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:52:41,925 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:52:41,925 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:52:41,926 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:52:41,926 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:52:41,926 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:52:41,927 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:52:41,927 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:52:41,927 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:52:41,927 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:52:41,928 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:52:41,928 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:52:41,929 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:52:41,932 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:52:41,932 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:52:41,933 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:52:41,933 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:52:41,933 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:52:41,934 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:52:41,934 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:52:41,934 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:52:41,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:52:41,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:52:41,935 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:52:41,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:52:41,939 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:52:41,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:52:41,939 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:52:41,939 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:52:41,940 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:52:41,940 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:52:41,940 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fb05d1d9f477ac46601c94c33a401c10a8ea916dae173fdeb0112a4de2b3b31 [2024-10-13 09:52:42,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:52:42,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:52:42,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:52:42,200 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:52:42,201 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:52:42,202 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_37-traces-ex-4_true.i [2024-10-13 09:52:43,796 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:52:44,081 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:52:44,084 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_37-traces-ex-4_true.i [2024-10-13 09:52:44,094 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04968cd53/189a1d06364d4625b3de5f5c7b24893b/FLAG0d9b18e1b [2024-10-13 09:52:44,378 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04968cd53/189a1d06364d4625b3de5f5c7b24893b [2024-10-13 09:52:44,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:52:44,382 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:52:44,383 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:52:44,383 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:52:44,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:52:44,387 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:52:44" (1/1) ... [2024-10-13 09:52:44,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67a07243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:44, skipping insertion in model container [2024-10-13 09:52:44,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:52:44" (1/1) ... [2024-10-13 09:52:44,421 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:52:44,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:52:44,718 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:52:44,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:52:44,802 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:52:44,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:44 WrapperNode [2024-10-13 09:52:44,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:52:44,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:52:44,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:52:44,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:52:44,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:44" (1/1) ... [2024-10-13 09:52:44,824 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:44" (1/1) ... [2024-10-13 09:52:44,845 INFO L138 Inliner]: procedures = 162, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2024-10-13 09:52:44,857 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:52:44,858 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:52:44,858 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:52:44,858 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:52:44,864 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:44" (1/1) ... [2024-10-13 09:52:44,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:44" (1/1) ... [2024-10-13 09:52:44,866 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:44" (1/1) ... [2024-10-13 09:52:44,868 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:44" (1/1) ... [2024-10-13 09:52:44,872 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:44" (1/1) ... [2024-10-13 09:52:44,874 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:44" (1/1) ... [2024-10-13 09:52:44,878 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:44" (1/1) ... [2024-10-13 09:52:44,879 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:44" (1/1) ... [2024-10-13 09:52:44,880 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:52:44,881 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:52:44,881 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:52:44,881 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:52:44,881 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:44" (1/1) ... [2024-10-13 09:52:44,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:52:44,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:52:44,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 09:52:44,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 09:52:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:52:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:52:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-13 09:52:44,953 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-13 09:52:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:52:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:52:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:52:44,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:52:44,954 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:52:45,064 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:52:45,066 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:52:45,220 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:52:45,223 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:52:45,264 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:52:45,266 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 09:52:45,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:52:45 BoogieIcfgContainer [2024-10-13 09:52:45,267 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:52:45,269 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:52:45,269 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:52:45,272 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:52:45,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:52:44" (1/3) ... [2024-10-13 09:52:45,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69da709e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:52:45, skipping insertion in model container [2024-10-13 09:52:45,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:44" (2/3) ... [2024-10-13 09:52:45,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69da709e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:52:45, skipping insertion in model container [2024-10-13 09:52:45,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:52:45" (3/3) ... [2024-10-13 09:52:45,275 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_37-traces-ex-4_true.i [2024-10-13 09:52:45,287 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:52:45,287 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-13 09:52:45,288 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:52:45,330 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:52:45,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 86 transitions, 176 flow [2024-10-13 09:52:45,403 INFO L124 PetriNetUnfolderBase]: 2/85 cut-off events. [2024-10-13 09:52:45,404 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:52:45,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 2/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2024-10-13 09:52:45,410 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 86 transitions, 176 flow [2024-10-13 09:52:45,414 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 85 transitions, 173 flow [2024-10-13 09:52:45,425 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:52:45,432 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;@79be7c94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:52:45,433 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-13 09:52:45,446 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:52:45,447 INFO L124 PetriNetUnfolderBase]: 0/43 cut-off events. [2024-10-13 09:52:45,449 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:52:45,449 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:52:45,450 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] [2024-10-13 09:52:45,450 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 09:52:45,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:52:45,456 INFO L85 PathProgramCache]: Analyzing trace with hash -433812595, now seen corresponding path program 1 times [2024-10-13 09:52:45,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:52:45,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773225759] [2024-10-13 09:52:45,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:52:45,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:52:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:52:45,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:52:45,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:52:45,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773225759] [2024-10-13 09:52:45,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773225759] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:52:45,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:52:45,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:52:45,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127047058] [2024-10-13 09:52:45,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:52:45,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:52:45,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:52:45,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:52:45,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:52:45,941 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 86 [2024-10-13 09:52:45,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 85 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:52:45,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:52:45,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 86 [2024-10-13 09:52:45,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:52:46,195 INFO L124 PetriNetUnfolderBase]: 67/437 cut-off events. [2024-10-13 09:52:46,199 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:52:46,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 602 conditions, 437 events. 67/437 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2346 event pairs, 20 based on Foata normal form. 30/433 useless extension candidates. Maximal degree in co-relation 568. Up to 95 conditions per place. [2024-10-13 09:52:46,209 INFO L140 encePairwiseOnDemand]: 79/86 looper letters, 21 selfloop transitions, 4 changer transitions 2/92 dead transitions. [2024-10-13 09:52:46,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 92 transitions, 241 flow [2024-10-13 09:52:46,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:52:46,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:52:46,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 233 transitions. [2024-10-13 09:52:46,230 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9031007751937985 [2024-10-13 09:52:46,232 INFO L175 Difference]: Start difference. First operand has 87 places, 85 transitions, 173 flow. Second operand 3 states and 233 transitions. [2024-10-13 09:52:46,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 92 transitions, 241 flow [2024-10-13 09:52:46,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 92 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:52:46,247 INFO L231 Difference]: Finished difference. Result has 88 places, 84 transitions, 194 flow [2024-10-13 09:52:46,248 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=88, PETRI_TRANSITIONS=84} [2024-10-13 09:52:46,255 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 1 predicate places. [2024-10-13 09:52:46,257 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 84 transitions, 194 flow [2024-10-13 09:52:46,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:52:46,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:52:46,258 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] [2024-10-13 09:52:46,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:52:46,258 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 09:52:46,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:52:46,262 INFO L85 PathProgramCache]: Analyzing trace with hash -766188100, now seen corresponding path program 1 times [2024-10-13 09:52:46,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:52:46,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527855174] [2024-10-13 09:52:46,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:52:46,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:52:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:52:46,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:52:46,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:52:46,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527855174] [2024-10-13 09:52:46,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527855174] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:52:46,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:52:46,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:52:46,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067670869] [2024-10-13 09:52:46,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:52:46,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:52:46,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:52:46,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:52:46,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:52:46,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 86 [2024-10-13 09:52:46,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 84 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:52:46,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:52:46,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 86 [2024-10-13 09:52:46,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:52:46,589 INFO L124 PetriNetUnfolderBase]: 82/463 cut-off events. [2024-10-13 09:52:46,590 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2024-10-13 09:52:46,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 728 conditions, 463 events. 82/463 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2599 event pairs, 55 based on Foata normal form. 0/429 useless extension candidates. Maximal degree in co-relation 693. Up to 162 conditions per place. [2024-10-13 09:52:46,596 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 22 selfloop transitions, 5 changer transitions 0/91 dead transitions. [2024-10-13 09:52:46,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 91 transitions, 266 flow [2024-10-13 09:52:46,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:52:46,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:52:46,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 221 transitions. [2024-10-13 09:52:46,603 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8565891472868217 [2024-10-13 09:52:46,603 INFO L175 Difference]: Start difference. First operand has 88 places, 84 transitions, 194 flow. Second operand 3 states and 221 transitions. [2024-10-13 09:52:46,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 91 transitions, 266 flow [2024-10-13 09:52:46,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 91 transitions, 256 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:52:46,611 INFO L231 Difference]: Finished difference. Result has 90 places, 87 transitions, 222 flow [2024-10-13 09:52:46,612 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=90, PETRI_TRANSITIONS=87} [2024-10-13 09:52:46,612 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 3 predicate places. [2024-10-13 09:52:46,612 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 87 transitions, 222 flow [2024-10-13 09:52:46,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:52:46,613 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:52:46,613 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:52:46,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:52:46,613 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 09:52:46,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:52:46,614 INFO L85 PathProgramCache]: Analyzing trace with hash -2104348791, now seen corresponding path program 1 times [2024-10-13 09:52:46,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:52:46,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142518869] [2024-10-13 09:52:46,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:52:46,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:52:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:52:46,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:52:46,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:52:46,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142518869] [2024-10-13 09:52:46,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142518869] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:52:46,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:52:46,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:52:46,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75726224] [2024-10-13 09:52:46,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:52:46,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 09:52:46,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:52:46,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 09:52:46,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 09:52:46,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 86 [2024-10-13 09:52:46,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 87 transitions, 222 flow. Second operand has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:52:46,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:52:46,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 86 [2024-10-13 09:52:46,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:52:46,997 INFO L124 PetriNetUnfolderBase]: 0/127 cut-off events. [2024-10-13 09:52:46,997 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-13 09:52:46,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 127 events. 0/127 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 142 event pairs, 0 based on Foata normal form. 8/131 useless extension candidates. Maximal degree in co-relation 0. Up to 16 conditions per place. [2024-10-13 09:52:47,000 INFO L140 encePairwiseOnDemand]: 80/86 looper letters, 6 selfloop transitions, 5 changer transitions 11/80 dead transitions. [2024-10-13 09:52:47,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 80 transitions, 214 flow [2024-10-13 09:52:47,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 09:52:47,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 09:52:47,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 365 transitions. [2024-10-13 09:52:47,005 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8488372093023255 [2024-10-13 09:52:47,005 INFO L175 Difference]: Start difference. First operand has 90 places, 87 transitions, 222 flow. Second operand 5 states and 365 transitions. [2024-10-13 09:52:47,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 80 transitions, 214 flow [2024-10-13 09:52:47,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 80 transitions, 194 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-10-13 09:52:47,009 INFO L231 Difference]: Finished difference. Result has 88 places, 69 transitions, 156 flow [2024-10-13 09:52:47,009 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=156, PETRI_PLACES=88, PETRI_TRANSITIONS=69} [2024-10-13 09:52:47,009 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 1 predicate places. [2024-10-13 09:52:47,009 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 69 transitions, 156 flow [2024-10-13 09:52:47,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:52:47,010 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:52:47,010 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] [2024-10-13 09:52:47,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 09:52:47,010 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 09:52:47,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:52:47,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1218344142, now seen corresponding path program 1 times [2024-10-13 09:52:47,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:52:47,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960839551] [2024-10-13 09:52:47,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:52:47,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:52:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:52:47,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:52:47,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:52:47,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960839551] [2024-10-13 09:52:47,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960839551] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:52:47,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:52:47,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:52:47,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077776243] [2024-10-13 09:52:47,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:52:47,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:52:47,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:52:47,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:52:47,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:52:47,073 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 86 [2024-10-13 09:52:47,073 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 69 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:52:47,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:52:47,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 86 [2024-10-13 09:52:47,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:52:47,092 INFO L124 PetriNetUnfolderBase]: 0/83 cut-off events. [2024-10-13 09:52:47,093 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-13 09:52:47,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 83 events. 0/83 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 2/85 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2024-10-13 09:52:47,093 INFO L140 encePairwiseOnDemand]: 84/86 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions. [2024-10-13 09:52:47,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 68 transitions, 182 flow [2024-10-13 09:52:47,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:52:47,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:52:47,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2024-10-13 09:52:47,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.810077519379845 [2024-10-13 09:52:47,095 INFO L175 Difference]: Start difference. First operand has 88 places, 69 transitions, 156 flow. Second operand 3 states and 209 transitions. [2024-10-13 09:52:47,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 68 transitions, 182 flow [2024-10-13 09:52:47,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 68 transitions, 176 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 09:52:47,096 INFO L231 Difference]: Finished difference. Result has 75 places, 0 transitions, 0 flow [2024-10-13 09:52:47,096 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=75, PETRI_TRANSITIONS=0} [2024-10-13 09:52:47,096 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, -12 predicate places. [2024-10-13 09:52:47,097 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 0 transitions, 0 flow [2024-10-13 09:52:47,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:52:47,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2024-10-13 09:52:47,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 6 remaining) [2024-10-13 09:52:47,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-10-13 09:52:47,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-10-13 09:52:47,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-10-13 09:52:47,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-10-13 09:52:47,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 09:52:47,100 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-13 09:52:47,108 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 09:52:47,108 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 09:52:47,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:52:47 BasicIcfg [2024-10-13 09:52:47,117 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 09:52:47,118 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 09:52:47,118 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 09:52:47,119 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 09:52:47,122 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:52:45" (3/4) ... [2024-10-13 09:52:47,124 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 09:52:47,126 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-13 09:52:47,132 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-13 09:52:47,133 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-13 09:52:47,136 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-13 09:52:47,136 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 09:52:47,255 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 09:52:47,258 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 09:52:47,258 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 09:52:47,259 INFO L158 Benchmark]: Toolchain (without parser) took 2877.46ms. Allocated memory was 144.7MB in the beginning and 239.1MB in the end (delta: 94.4MB). Free memory was 73.1MB in the beginning and 145.2MB in the end (delta: -72.1MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2024-10-13 09:52:47,263 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 144.7MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 09:52:47,263 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.43ms. Allocated memory was 144.7MB in the beginning and 239.1MB in the end (delta: 94.4MB). Free memory was 72.9MB in the beginning and 205.1MB in the end (delta: -132.2MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2024-10-13 09:52:47,264 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.63ms. Allocated memory is still 239.1MB. Free memory was 205.1MB in the beginning and 206.9MB in the end (delta: -1.8MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-10-13 09:52:47,264 INFO L158 Benchmark]: Boogie Preprocessor took 22.60ms. Allocated memory is still 239.1MB. Free memory was 206.9MB in the beginning and 205.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 09:52:47,264 INFO L158 Benchmark]: RCFGBuilder took 385.95ms. Allocated memory is still 239.1MB. Free memory was 205.8MB in the beginning and 189.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-13 09:52:47,264 INFO L158 Benchmark]: TraceAbstraction took 1848.77ms. Allocated memory is still 239.1MB. Free memory was 188.0MB in the beginning and 149.4MB in the end (delta: 38.6MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2024-10-13 09:52:47,264 INFO L158 Benchmark]: Witness Printer took 140.27ms. Allocated memory is still 239.1MB. Free memory was 149.4MB in the beginning and 145.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 09:52:47,266 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 144.7MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.43ms. Allocated memory was 144.7MB in the beginning and 239.1MB in the end (delta: 94.4MB). Free memory was 72.9MB in the beginning and 205.1MB in the end (delta: -132.2MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.63ms. Allocated memory is still 239.1MB. Free memory was 205.1MB in the beginning and 206.9MB in the end (delta: -1.8MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.60ms. Allocated memory is still 239.1MB. Free memory was 206.9MB in the beginning and 205.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 385.95ms. Allocated memory is still 239.1MB. Free memory was 205.8MB in the beginning and 189.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1848.77ms. Allocated memory is still 239.1MB. Free memory was 188.0MB in the beginning and 149.4MB in the end (delta: 38.6MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. * Witness Printer took 140.27ms. Allocated memory is still 239.1MB. Free memory was 149.4MB in the beginning and 145.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 690]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 114 locations, 6 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: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 125 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 211 IncrementalHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 3 mSDtfsCounter, 211 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=2, InterpolantAutomatonStates: 14, 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, 0.6s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 290 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-13 09:52:47,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE