/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_13-idxunknown_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:17:03,454 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:17:03,543 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 03:17:03,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:17:03,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:17:03,581 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:17:03,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:17:03,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:17:03,583 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:17:03,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:17:03,587 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:17:03,587 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:17:03,587 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:17:03,588 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:17:03,589 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:17:03,589 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:17:03,589 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:17:03,589 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:17:03,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:17:03,590 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:17:03,590 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:17:03,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:17:03,591 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:17:03,591 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:17:03,591 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:17:03,592 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:17:03,592 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:17:03,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:17:03,592 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:17:03,593 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:17:03,594 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:17:03,594 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:17:03,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:17:03,594 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:17:03,594 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:17:03,595 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:17:03,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:17:03,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:17:03,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:17:03,978 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:17:03,978 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:17:03,980 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_13-idxunknown_lock.i [2023-08-25 03:17:05,213 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:17:05,545 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:17:05,545 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_13-idxunknown_lock.i [2023-08-25 03:17:05,557 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b577429db/f00f44fdab41461abb116a1515a34b18/FLAGd5506f534 [2023-08-25 03:17:05,568 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b577429db/f00f44fdab41461abb116a1515a34b18 [2023-08-25 03:17:05,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:17:05,571 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:17:05,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:17:05,574 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:17:05,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:17:05,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:17:05" (1/1) ... [2023-08-25 03:17:05,578 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16e67747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:05, skipping insertion in model container [2023-08-25 03:17:05,578 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:17:05" (1/1) ... [2023-08-25 03:17:05,625 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:17:05,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:17:05,990 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:17:06,019 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [249] [2023-08-25 03:17:06,021 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [249] [2023-08-25 03:17:06,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:17:06,093 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:17:06,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:06 WrapperNode [2023-08-25 03:17:06,094 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:17:06,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:17:06,095 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:17:06,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:17:06,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:06" (1/1) ... [2023-08-25 03:17:06,129 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:06" (1/1) ... [2023-08-25 03:17:06,156 INFO L138 Inliner]: procedures = 164, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2023-08-25 03:17:06,157 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:17:06,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:17:06,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:17:06,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:17:06,166 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:06" (1/1) ... [2023-08-25 03:17:06,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:06" (1/1) ... [2023-08-25 03:17:06,170 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:06" (1/1) ... [2023-08-25 03:17:06,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:06" (1/1) ... [2023-08-25 03:17:06,181 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:06" (1/1) ... [2023-08-25 03:17:06,184 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:06" (1/1) ... [2023-08-25 03:17:06,186 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:06" (1/1) ... [2023-08-25 03:17:06,187 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:06" (1/1) ... [2023-08-25 03:17:06,189 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:17:06,190 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:17:06,190 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:17:06,190 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:17:06,191 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:06" (1/1) ... [2023-08-25 03:17:06,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:17:06,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:17:06,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 03:17:06,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 03:17:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 03:17:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:17:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 03:17:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:17:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:17:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 03:17:06,254 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 03:17:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:17:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:17:06,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:17:06,256 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 03:17:06,364 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:17:06,366 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:17:06,535 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:17:06,544 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:17:06,544 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-25 03:17:06,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:17:06 BoogieIcfgContainer [2023-08-25 03:17:06,546 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:17:06,548 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:17:06,548 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:17:06,551 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:17:06,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:17:05" (1/3) ... [2023-08-25 03:17:06,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4473eb66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:17:06, skipping insertion in model container [2023-08-25 03:17:06,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:06" (2/3) ... [2023-08-25 03:17:06,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4473eb66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:17:06, skipping insertion in model container [2023-08-25 03:17:06,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:17:06" (3/3) ... [2023-08-25 03:17:06,554 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_13-idxunknown_lock.i [2023-08-25 03:17:06,569 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:17:06,569 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-25 03:17:06,569 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:17:06,649 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 03:17:06,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 91 transitions, 187 flow [2023-08-25 03:17:06,761 INFO L124 PetriNetUnfolderBase]: 3/90 cut-off events. [2023-08-25 03:17:06,761 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:17:06,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 90 events. 3/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2023-08-25 03:17:06,770 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 91 transitions, 187 flow [2023-08-25 03:17:06,775 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 90 transitions, 183 flow [2023-08-25 03:17:06,779 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:17:06,792 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 90 transitions, 183 flow [2023-08-25 03:17:06,800 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 90 transitions, 183 flow [2023-08-25 03:17:06,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 90 transitions, 183 flow [2023-08-25 03:17:06,831 INFO L124 PetriNetUnfolderBase]: 3/90 cut-off events. [2023-08-25 03:17:06,831 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:17:06,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 90 events. 3/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2023-08-25 03:17:06,833 INFO L119 LiptonReduction]: Number of co-enabled transitions 1450 [2023-08-25 03:17:08,186 INFO L134 LiptonReduction]: Checked pairs total: 7570 [2023-08-25 03:17:08,186 INFO L136 LiptonReduction]: Total number of compositions: 60 [2023-08-25 03:17:08,198 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:17:08,204 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6fdaf1c3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:17:08,204 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-25 03:17:08,208 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:17:08,208 INFO L124 PetriNetUnfolderBase]: 1/16 cut-off events. [2023-08-25 03:17:08,209 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:17:08,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:08,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:08,210 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:08,214 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:08,214 INFO L85 PathProgramCache]: Analyzing trace with hash 2055948646, now seen corresponding path program 1 times [2023-08-25 03:17:08,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:08,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456521326] [2023-08-25 03:17:08,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:08,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:08,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:17:08,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:08,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456521326] [2023-08-25 03:17:08,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456521326] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:08,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:17:08,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:17:08,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904235390] [2023-08-25 03:17:08,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:08,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:17:08,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:08,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:17:08,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:17:08,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 151 [2023-08-25 03:17:08,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2023-08-25 03:17:08,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:08,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 151 [2023-08-25 03:17:08,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:08,522 INFO L124 PetriNetUnfolderBase]: 37/165 cut-off events. [2023-08-25 03:17:08,522 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:17:08,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 165 events. 37/165 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 626 event pairs, 36 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 244. Up to 89 conditions per place. [2023-08-25 03:17:08,525 INFO L140 encePairwiseOnDemand]: 148/151 looper letters, 15 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-08-25 03:17:08,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 37 transitions, 111 flow [2023-08-25 03:17:08,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:17:08,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:17:08,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2023-08-25 03:17:08,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5695364238410596 [2023-08-25 03:17:08,538 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 258 transitions. [2023-08-25 03:17:08,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 258 transitions. [2023-08-25 03:17:08,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:08,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 258 transitions. [2023-08-25 03:17:08,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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) [2023-08-25 03:17:08,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2023-08-25 03:17:08,549 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2023-08-25 03:17:08,550 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 75 flow. Second operand 3 states and 258 transitions. [2023-08-25 03:17:08,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 37 transitions, 111 flow [2023-08-25 03:17:08,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:17:08,554 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 86 flow [2023-08-25 03:17:08,556 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2023-08-25 03:17:08,559 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2023-08-25 03:17:08,559 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 86 flow [2023-08-25 03:17:08,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2023-08-25 03:17:08,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:08,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:08,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:17:08,560 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:08,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:08,561 INFO L85 PathProgramCache]: Analyzing trace with hash 789808624, now seen corresponding path program 1 times [2023-08-25 03:17:08,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:08,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010575045] [2023-08-25 03:17:08,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:08,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:08,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:17:08,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:08,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010575045] [2023-08-25 03:17:08,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010575045] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:17:08,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958811958] [2023-08-25 03:17:08,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:08,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:17:08,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:17:08,692 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:17:08,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 03:17:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:08,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-25 03:17:08,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:17:08,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:17:08,825 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:17:08,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:17:08,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958811958] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:17:08,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 03:17:08,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-25 03:17:08,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609763597] [2023-08-25 03:17:08,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 03:17:08,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 03:17:08,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:08,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 03:17:08,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-25 03:17:08,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 151 [2023-08-25 03:17:08,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 86 flow. Second operand has 7 states, 7 states have (on average 81.57142857142857) internal successors, (571), 7 states have internal predecessors, (571), 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) [2023-08-25 03:17:08,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:08,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 151 [2023-08-25 03:17:08,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:08,933 INFO L124 PetriNetUnfolderBase]: 37/168 cut-off events. [2023-08-25 03:17:08,934 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:17:08,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 168 events. 37/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 626 event pairs, 36 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 263. Up to 89 conditions per place. [2023-08-25 03:17:08,935 INFO L140 encePairwiseOnDemand]: 148/151 looper letters, 15 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2023-08-25 03:17:08,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 138 flow [2023-08-25 03:17:08,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:08,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:08,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 503 transitions. [2023-08-25 03:17:08,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5551876379690949 [2023-08-25 03:17:08,939 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 503 transitions. [2023-08-25 03:17:08,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 503 transitions. [2023-08-25 03:17:08,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:08,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 503 transitions. [2023-08-25 03:17:08,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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) [2023-08-25 03:17:08,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 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) [2023-08-25 03:17:08,944 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 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) [2023-08-25 03:17:08,945 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 86 flow. Second operand 6 states and 503 transitions. [2023-08-25 03:17:08,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 138 flow [2023-08-25 03:17:08,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 40 transitions, 134 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 03:17:08,946 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 118 flow [2023-08-25 03:17:08,946 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-08-25 03:17:08,947 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 9 predicate places. [2023-08-25 03:17:08,947 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 118 flow [2023-08-25 03:17:08,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 81.57142857142857) internal successors, (571), 7 states have internal predecessors, (571), 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) [2023-08-25 03:17:08,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:08,948 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:08,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 03:17:09,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:17:09,155 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:09,155 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:09,156 INFO L85 PathProgramCache]: Analyzing trace with hash -194283467, now seen corresponding path program 2 times [2023-08-25 03:17:09,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:09,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899818419] [2023-08-25 03:17:09,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:09,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:09,494 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-25 03:17:09,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:09,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899818419] [2023-08-25 03:17:09,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899818419] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:09,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:17:09,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:17:09,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998942966] [2023-08-25 03:17:09,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:09,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:09,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:09,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:09,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:17:09,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 151 [2023-08-25 03:17:09,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 59.833333333333336) internal successors, (359), 6 states have internal predecessors, (359), 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) [2023-08-25 03:17:09,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:09,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 151 [2023-08-25 03:17:09,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:09,873 INFO L124 PetriNetUnfolderBase]: 408/878 cut-off events. [2023-08-25 03:17:09,874 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 03:17:09,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1783 conditions, 878 events. 408/878 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 4469 event pairs, 111 based on Foata normal form. 0/770 useless extension candidates. Maximal degree in co-relation 1750. Up to 387 conditions per place. [2023-08-25 03:17:09,880 INFO L140 encePairwiseOnDemand]: 129/151 looper letters, 124 selfloop transitions, 42 changer transitions 0/166 dead transitions. [2023-08-25 03:17:09,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 166 transitions, 702 flow [2023-08-25 03:17:09,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:09,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:09,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 512 transitions. [2023-08-25 03:17:09,884 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.565121412803532 [2023-08-25 03:17:09,884 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 512 transitions. [2023-08-25 03:17:09,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 512 transitions. [2023-08-25 03:17:09,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:09,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 512 transitions. [2023-08-25 03:17:09,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 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) [2023-08-25 03:17:09,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 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) [2023-08-25 03:17:09,889 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 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) [2023-08-25 03:17:09,889 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 118 flow. Second operand 6 states and 512 transitions. [2023-08-25 03:17:09,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 166 transitions, 702 flow [2023-08-25 03:17:09,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 166 transitions, 688 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-25 03:17:09,893 INFO L231 Difference]: Finished difference. Result has 57 places, 86 transitions, 420 flow [2023-08-25 03:17:09,893 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=420, PETRI_PLACES=57, PETRI_TRANSITIONS=86} [2023-08-25 03:17:09,894 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 18 predicate places. [2023-08-25 03:17:09,894 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 86 transitions, 420 flow [2023-08-25 03:17:09,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.833333333333336) internal successors, (359), 6 states have internal predecessors, (359), 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) [2023-08-25 03:17:09,895 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:09,895 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:09,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 03:17:09,895 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:09,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:09,896 INFO L85 PathProgramCache]: Analyzing trace with hash 2103674409, now seen corresponding path program 1 times [2023-08-25 03:17:09,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:09,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933673989] [2023-08-25 03:17:09,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:09,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:09,980 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:17:09,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:09,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933673989] [2023-08-25 03:17:09,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933673989] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:17:09,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51848367] [2023-08-25 03:17:09,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:09,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:17:09,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:17:09,983 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:17:10,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 03:17:10,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:10,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-25 03:17:10,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:17:10,087 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:17:10,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:17:10,141 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:17:10,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51848367] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:17:10,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 03:17:10,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-25 03:17:10,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929547041] [2023-08-25 03:17:10,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 03:17:10,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 03:17:10,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:10,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 03:17:10,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-25 03:17:10,145 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 151 [2023-08-25 03:17:10,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 86 transitions, 420 flow. Second operand has 13 states, 13 states have (on average 81.46153846153847) internal successors, (1059), 13 states have internal predecessors, (1059), 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) [2023-08-25 03:17:10,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:10,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 151 [2023-08-25 03:17:10,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:10,277 INFO L124 PetriNetUnfolderBase]: 150/511 cut-off events. [2023-08-25 03:17:10,277 INFO L125 PetriNetUnfolderBase]: For 273/282 co-relation queries the response was YES. [2023-08-25 03:17:10,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1335 conditions, 511 events. 150/511 cut-off events. For 273/282 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2988 event pairs, 61 based on Foata normal form. 6/503 useless extension candidates. Maximal degree in co-relation 1280. Up to 212 conditions per place. [2023-08-25 03:17:10,283 INFO L140 encePairwiseOnDemand]: 148/151 looper letters, 35 selfloop transitions, 11 changer transitions 0/92 dead transitions. [2023-08-25 03:17:10,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 92 transitions, 548 flow [2023-08-25 03:17:10,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 03:17:10,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 03:17:10,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 992 transitions. [2023-08-25 03:17:10,287 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5474613686534217 [2023-08-25 03:17:10,287 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 992 transitions. [2023-08-25 03:17:10,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 992 transitions. [2023-08-25 03:17:10,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:10,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 992 transitions. [2023-08-25 03:17:10,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 82.66666666666667) internal successors, (992), 12 states have internal predecessors, (992), 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) [2023-08-25 03:17:10,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 151.0) internal successors, (1963), 13 states have internal predecessors, (1963), 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) [2023-08-25 03:17:10,295 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 151.0) internal successors, (1963), 13 states have internal predecessors, (1963), 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) [2023-08-25 03:17:10,295 INFO L175 Difference]: Start difference. First operand has 57 places, 86 transitions, 420 flow. Second operand 12 states and 992 transitions. [2023-08-25 03:17:10,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 92 transitions, 548 flow [2023-08-25 03:17:10,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 92 transitions, 548 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:17:10,305 INFO L231 Difference]: Finished difference. Result has 74 places, 92 transitions, 504 flow [2023-08-25 03:17:10,305 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=504, PETRI_PLACES=74, PETRI_TRANSITIONS=92} [2023-08-25 03:17:10,307 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 35 predicate places. [2023-08-25 03:17:10,307 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 92 transitions, 504 flow [2023-08-25 03:17:10,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.46153846153847) internal successors, (1059), 13 states have internal predecessors, (1059), 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) [2023-08-25 03:17:10,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:10,308 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:10,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 03:17:10,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-25 03:17:10,514 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:10,515 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:10,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1359674295, now seen corresponding path program 2 times [2023-08-25 03:17:10,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:10,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042390371] [2023-08-25 03:17:10,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:10,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:10,836 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:17:10,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:10,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042390371] [2023-08-25 03:17:10,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042390371] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:10,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:17:10,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:17:10,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337774506] [2023-08-25 03:17:10,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:10,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:10,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:10,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:10,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:17:10,839 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 151 [2023-08-25 03:17:10,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 92 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 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) [2023-08-25 03:17:10,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:10,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 151 [2023-08-25 03:17:10,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:11,178 INFO L124 PetriNetUnfolderBase]: 535/1151 cut-off events. [2023-08-25 03:17:11,178 INFO L125 PetriNetUnfolderBase]: For 611/611 co-relation queries the response was YES. [2023-08-25 03:17:11,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3519 conditions, 1151 events. 535/1151 cut-off events. For 611/611 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 6165 event pairs, 163 based on Foata normal form. 25/1176 useless extension candidates. Maximal degree in co-relation 3439. Up to 768 conditions per place. [2023-08-25 03:17:11,186 INFO L140 encePairwiseOnDemand]: 134/151 looper letters, 132 selfloop transitions, 53 changer transitions 6/191 dead transitions. [2023-08-25 03:17:11,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 191 transitions, 1278 flow [2023-08-25 03:17:11,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:11,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:11,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 457 transitions. [2023-08-25 03:17:11,189 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5044150110375276 [2023-08-25 03:17:11,189 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 457 transitions. [2023-08-25 03:17:11,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 457 transitions. [2023-08-25 03:17:11,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:11,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 457 transitions. [2023-08-25 03:17:11,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.16666666666667) internal successors, (457), 6 states have internal predecessors, (457), 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) [2023-08-25 03:17:11,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 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) [2023-08-25 03:17:11,192 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 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) [2023-08-25 03:17:11,192 INFO L175 Difference]: Start difference. First operand has 74 places, 92 transitions, 504 flow. Second operand 6 states and 457 transitions. [2023-08-25 03:17:11,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 191 transitions, 1278 flow [2023-08-25 03:17:11,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 191 transitions, 1230 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-25 03:17:11,200 INFO L231 Difference]: Finished difference. Result has 79 places, 143 transitions, 962 flow [2023-08-25 03:17:11,201 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=962, PETRI_PLACES=79, PETRI_TRANSITIONS=143} [2023-08-25 03:17:11,201 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 40 predicate places. [2023-08-25 03:17:11,201 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 143 transitions, 962 flow [2023-08-25 03:17:11,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 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) [2023-08-25 03:17:11,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:11,202 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:11,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 03:17:11,202 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:11,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:11,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1707002366, now seen corresponding path program 1 times [2023-08-25 03:17:11,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:11,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281076838] [2023-08-25 03:17:11,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:11,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:11,459 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:17:11,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:11,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281076838] [2023-08-25 03:17:11,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281076838] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:11,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:17:11,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:17:11,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52760922] [2023-08-25 03:17:11,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:11,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:11,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:11,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:11,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:17:11,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 151 [2023-08-25 03:17:11,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 143 transitions, 962 flow. Second operand has 6 states, 6 states have (on average 57.833333333333336) internal successors, (347), 6 states have internal predecessors, (347), 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) [2023-08-25 03:17:11,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:11,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 151 [2023-08-25 03:17:11,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:11,859 INFO L124 PetriNetUnfolderBase]: 633/1368 cut-off events. [2023-08-25 03:17:11,859 INFO L125 PetriNetUnfolderBase]: For 1969/1969 co-relation queries the response was YES. [2023-08-25 03:17:11,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5240 conditions, 1368 events. 633/1368 cut-off events. For 1969/1969 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 7697 event pairs, 164 based on Foata normal form. 29/1397 useless extension candidates. Maximal degree in co-relation 5180. Up to 946 conditions per place. [2023-08-25 03:17:11,871 INFO L140 encePairwiseOnDemand]: 134/151 looper letters, 154 selfloop transitions, 58 changer transitions 43/255 dead transitions. [2023-08-25 03:17:11,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 255 transitions, 2078 flow [2023-08-25 03:17:11,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:11,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:11,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 451 transitions. [2023-08-25 03:17:11,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4977924944812362 [2023-08-25 03:17:11,874 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 451 transitions. [2023-08-25 03:17:11,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 451 transitions. [2023-08-25 03:17:11,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:11,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 451 transitions. [2023-08-25 03:17:11,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 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) [2023-08-25 03:17:11,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 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) [2023-08-25 03:17:11,877 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 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) [2023-08-25 03:17:11,877 INFO L175 Difference]: Start difference. First operand has 79 places, 143 transitions, 962 flow. Second operand 6 states and 451 transitions. [2023-08-25 03:17:11,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 255 transitions, 2078 flow [2023-08-25 03:17:11,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 255 transitions, 2070 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-08-25 03:17:11,891 INFO L231 Difference]: Finished difference. Result has 88 places, 170 transitions, 1362 flow [2023-08-25 03:17:11,892 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=954, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1362, PETRI_PLACES=88, PETRI_TRANSITIONS=170} [2023-08-25 03:17:11,892 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 49 predicate places. [2023-08-25 03:17:11,892 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 170 transitions, 1362 flow [2023-08-25 03:17:11,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.833333333333336) internal successors, (347), 6 states have internal predecessors, (347), 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) [2023-08-25 03:17:11,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:11,893 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:11,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 03:17:11,893 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:11,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:11,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1741981951, now seen corresponding path program 1 times [2023-08-25 03:17:11,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:11,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107122168] [2023-08-25 03:17:11,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:11,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:17:11,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 03:17:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:17:11,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 03:17:11,975 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 03:17:11,975 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-25 03:17:11,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-25 03:17:11,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-25 03:17:11,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-08-25 03:17:11,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-25 03:17:11,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-25 03:17:11,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-25 03:17:11,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 03:17:11,978 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2023-08-25 03:17:11,983 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 03:17:11,983 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 03:17:12,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:17:12 BasicIcfg [2023-08-25 03:17:12,035 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 03:17:12,036 INFO L158 Benchmark]: Toolchain (without parser) took 6464.10ms. Allocated memory was 356.5MB in the beginning and 459.3MB in the end (delta: 102.8MB). Free memory was 331.1MB in the beginning and 306.3MB in the end (delta: 24.7MB). Peak memory consumption was 127.9MB. Max. memory is 16.0GB. [2023-08-25 03:17:12,036 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 356.5MB. Free memory was 332.6MB in the beginning and 332.4MB in the end (delta: 144.5kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:17:12,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 520.17ms. Allocated memory is still 356.5MB. Free memory was 331.1MB in the beginning and 311.6MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 03:17:12,036 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.00ms. Allocated memory is still 356.5MB. Free memory was 311.6MB in the beginning and 309.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:17:12,037 INFO L158 Benchmark]: Boogie Preprocessor took 31.56ms. Allocated memory is still 356.5MB. Free memory was 309.7MB in the beginning and 307.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:17:12,037 INFO L158 Benchmark]: RCFGBuilder took 356.44ms. Allocated memory is still 356.5MB. Free memory was 307.6MB in the beginning and 292.0MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-25 03:17:12,037 INFO L158 Benchmark]: TraceAbstraction took 5486.94ms. Allocated memory was 356.5MB in the beginning and 459.3MB in the end (delta: 102.8MB). Free memory was 291.2MB in the beginning and 306.3MB in the end (delta: -15.1MB). Peak memory consumption was 88.1MB. Max. memory is 16.0GB. [2023-08-25 03:17:12,039 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 356.5MB. Free memory was 332.6MB in the beginning and 332.4MB in the end (delta: 144.5kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 520.17ms. Allocated memory is still 356.5MB. Free memory was 331.1MB in the beginning and 311.6MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 62.00ms. Allocated memory is still 356.5MB. Free memory was 311.6MB in the beginning and 309.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 31.56ms. Allocated memory is still 356.5MB. Free memory was 309.7MB in the beginning and 307.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 356.44ms. Allocated memory is still 356.5MB. Free memory was 307.6MB in the beginning and 292.0MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 5486.94ms. Allocated memory was 356.5MB in the beginning and 459.3MB in the end (delta: 102.8MB). Free memory was 291.2MB in the beginning and 306.3MB in the end (delta: -15.1MB). Peak memory consumption was 88.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 249]: Unsoundness Warning unspecified type, defaulting to int C: short [249] - GenericResultAtLocation [Line: 249]: Unsoundness Warning unspecified type, defaulting to int C: short [249] - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4s, 91 PlacesBefore, 39 PlacesAfterwards, 90 TransitionsBefore, 36 TransitionsAfterwards, 1450 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 60 TotalNumberOfCompositions, 7570 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1855, independent: 1459, independent conditional: 0, independent unconditional: 1459, dependent: 396, dependent conditional: 0, dependent unconditional: 396, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 636, independent: 586, independent conditional: 0, independent unconditional: 586, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1855, independent: 873, independent conditional: 0, independent unconditional: 873, dependent: 346, dependent conditional: 0, dependent unconditional: 346, unknown: 636, unknown conditional: 0, unknown unconditional: 636] , Statistics on independence cache: Total cache size (in pairs): 128, Positive cache size: 86, Positive conditional cache size: 0, Positive unconditional cache size: 86, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 700]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int data[10]; [L685] 0 pthread_mutex_t m[10]; [L693] 0 int i = 0; VAL [data={1:0}, i=0, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=1, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=2, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=3, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=4, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=5, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=6, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=7, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=8, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=9, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=10, m={2:0}] [L693] COND FALSE 0 !(i < 10) [L695] 0 int i = __VERIFIER_nondet_int(); [L696] CALL 0 assume_abort_if_not(0 <= i && i < 10) [L11] COND FALSE 0 !(!cond) [L696] RET 0 assume_abort_if_not(0 <= i && i < 10) [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, i=0, id={3:0}, m={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L688] EXPR 1 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L700] EXPR 0 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, i=0, id={3:0}, m={2:0}] [L688] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L700] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, i=0, id={3:0}, m={2:0}] [L688] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L700] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, i=0, id={3:0}, m={2:0}] [L688] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]++=0, data[4]++=241, data[4]=0, m={2:0}] [L700] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]++=0, data[4]++=241, data[4]=0, data[4]=0, i=0, id={3:0}, m={2:0}] Now there is a data race (on the heap) between C: data[4]++ [688] and C: data[4]++ [700] - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: 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, 116 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.3s, OverallIterations: 7, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 110 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 87 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 959 IncrementalHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 87 mSolverCounterUnsat, 44 mSDtfsCounter, 959 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1362occurred in iteration=6, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 470 SizeOfPredicates, 0 NumberOfNonLiveVariables, 255 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 120/153 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! [2023-08-25 03:17:12,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...