/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 --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -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/36-apron_17-traces-rpb-litmus_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 18:43:59,339 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 18:43:59,403 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 18:43:59,407 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 18:43:59,408 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 18:43:59,430 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 18:43:59,430 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 18:43:59,434 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 18:43:59,434 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 18:43:59,438 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 18:43:59,438 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 18:43:59,438 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 18:43:59,438 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 18:43:59,439 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 18:43:59,439 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 18:43:59,440 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 18:43:59,440 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 18:43:59,440 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 18:43:59,440 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 18:43:59,440 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 18:43:59,440 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 18:43:59,441 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 18:43:59,441 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 18:43:59,441 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 18:43:59,442 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 18:43:59,442 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 18:43:59,442 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 18:43:59,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 18:43:59,442 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 18:43:59,442 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 18:43:59,443 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 18:43:59,443 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 18:43:59,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 18:43:59,443 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 18:43:59,443 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 18:43:59,444 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 18:43:59,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 18:43:59,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 18:43:59,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 18:43:59,698 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 18:43:59,699 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 18:43:59,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2023-08-25 18:44:00,617 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 18:44:00,857 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 18:44:00,857 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2023-08-25 18:44:00,873 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04b129868/a9f32fe404ee4ccabfd4a91322a2d346/FLAGde795ddaa [2023-08-25 18:44:00,885 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04b129868/a9f32fe404ee4ccabfd4a91322a2d346 [2023-08-25 18:44:00,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 18:44:00,889 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 18:44:00,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 18:44:00,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 18:44:00,892 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 18:44:00,893 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 06:44:00" (1/1) ... [2023-08-25 18:44:00,894 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@460a5684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:00, skipping insertion in model container [2023-08-25 18:44:00,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 06:44:00" (1/1) ... [2023-08-25 18:44:00,932 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 18:44:01,169 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 18:44:01,179 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 18:44:01,203 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-25 18:44:01,204 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-25 18:44:01,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 18:44:01,247 INFO L206 MainTranslator]: Completed translation [2023-08-25 18:44:01,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:01 WrapperNode [2023-08-25 18:44:01,247 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 18:44:01,248 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 18:44:01,248 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 18:44:01,248 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 18:44:01,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:01" (1/1) ... [2023-08-25 18:44:01,271 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:01" (1/1) ... [2023-08-25 18:44:01,290 INFO L138 Inliner]: procedures = 163, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2023-08-25 18:44:01,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 18:44:01,291 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 18:44:01,291 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 18:44:01,291 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 18:44:01,296 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:01" (1/1) ... [2023-08-25 18:44:01,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:01" (1/1) ... [2023-08-25 18:44:01,307 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:01" (1/1) ... [2023-08-25 18:44:01,307 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:01" (1/1) ... [2023-08-25 18:44:01,312 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:01" (1/1) ... [2023-08-25 18:44:01,313 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:01" (1/1) ... [2023-08-25 18:44:01,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:01" (1/1) ... [2023-08-25 18:44:01,315 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:01" (1/1) ... [2023-08-25 18:44:01,316 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 18:44:01,316 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 18:44:01,317 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 18:44:01,317 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 18:44:01,317 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:01" (1/1) ... [2023-08-25 18:44:01,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 18:44:01,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 18:44:01,345 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 18:44:01,352 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 18:44:01,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 18:44:01,374 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 18:44:01,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 18:44:01,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 18:44:01,375 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 18:44:01,375 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 18:44:01,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 18:44:01,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 18:44:01,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 18:44:01,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 18:44:01,376 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 18:44:01,497 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 18:44:01,498 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 18:44:01,620 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 18:44:01,624 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 18:44:01,624 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 18:44:01,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 06:44:01 BoogieIcfgContainer [2023-08-25 18:44:01,626 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 18:44:01,627 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 18:44:01,627 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 18:44:01,629 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 18:44:01,629 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 06:44:00" (1/3) ... [2023-08-25 18:44:01,630 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c3c1c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 06:44:01, skipping insertion in model container [2023-08-25 18:44:01,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:01" (2/3) ... [2023-08-25 18:44:01,630 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c3c1c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 06:44:01, skipping insertion in model container [2023-08-25 18:44:01,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 06:44:01" (3/3) ... [2023-08-25 18:44:01,631 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2023-08-25 18:44:01,641 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 18:44:01,641 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-25 18:44:01,641 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 18:44:01,692 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 18:44:01,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 90 transitions, 185 flow [2023-08-25 18:44:01,774 INFO L124 PetriNetUnfolderBase]: 3/89 cut-off events. [2023-08-25 18:44:01,774 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 18:44:01,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 89 events. 3/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-08-25 18:44:01,778 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 90 transitions, 185 flow [2023-08-25 18:44:01,783 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 89 transitions, 181 flow [2023-08-25 18:44:01,786 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 18:44:01,796 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 89 transitions, 181 flow [2023-08-25 18:44:01,799 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 89 transitions, 181 flow [2023-08-25 18:44:01,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 89 transitions, 181 flow [2023-08-25 18:44:01,829 INFO L124 PetriNetUnfolderBase]: 3/89 cut-off events. [2023-08-25 18:44:01,829 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 18:44:01,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 89 events. 3/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-08-25 18:44:01,831 INFO L119 LiptonReduction]: Number of co-enabled transitions 1200 [2023-08-25 18:44:03,909 INFO L134 LiptonReduction]: Checked pairs total: 4044 [2023-08-25 18:44:03,909 INFO L136 LiptonReduction]: Total number of compositions: 76 [2023-08-25 18:44:03,917 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 18:44:03,921 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;@5bfd5fee, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 18:44:03,921 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-25 18:44:03,923 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 18:44:03,923 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-08-25 18:44:03,923 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 18:44:03,924 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:44:03,924 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 18:44:03,924 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 3 more)] === [2023-08-25 18:44:03,927 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:44:03,927 INFO L85 PathProgramCache]: Analyzing trace with hash 629093277, now seen corresponding path program 1 times [2023-08-25 18:44:03,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:44:03,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086393467] [2023-08-25 18:44:03,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:44:03,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:44:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:44:04,115 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 18:44:04,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:44:04,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086393467] [2023-08-25 18:44:04,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086393467] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:44:04,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:44:04,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 18:44:04,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303700544] [2023-08-25 18:44:04,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:44:04,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 18:44:04,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:44:04,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 18:44:04,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 18:44:04,141 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 166 [2023-08-25 18:44:04,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 28 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 18:44:04,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:44:04,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 166 [2023-08-25 18:44:04,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:44:04,231 INFO L124 PetriNetUnfolderBase]: 117/278 cut-off events. [2023-08-25 18:44:04,231 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 18:44:04,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 278 events. 117/278 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1328 event pairs, 51 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 536. Up to 168 conditions per place. [2023-08-25 18:44:04,233 INFO L140 encePairwiseOnDemand]: 160/166 looper letters, 33 selfloop transitions, 4 changer transitions 0/39 dead transitions. [2023-08-25 18:44:04,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 39 transitions, 155 flow [2023-08-25 18:44:04,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 18:44:04,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 18:44:04,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 271 transitions. [2023-08-25 18:44:04,242 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5441767068273092 [2023-08-25 18:44:04,242 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 271 transitions. [2023-08-25 18:44:04,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 271 transitions. [2023-08-25 18:44:04,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:44:04,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 271 transitions. [2023-08-25 18:44:04,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 18:44:04,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 18:44:04,250 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 18:44:04,251 INFO L175 Difference]: Start difference. First operand has 30 places, 28 transitions, 59 flow. Second operand 3 states and 271 transitions. [2023-08-25 18:44:04,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 39 transitions, 155 flow [2023-08-25 18:44:04,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 39 transitions, 154 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 18:44:04,253 INFO L231 Difference]: Finished difference. Result has 33 places, 29 transitions, 82 flow [2023-08-25 18:44:04,254 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=33, PETRI_TRANSITIONS=29} [2023-08-25 18:44:04,256 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 3 predicate places. [2023-08-25 18:44:04,256 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 29 transitions, 82 flow [2023-08-25 18:44:04,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 18:44:04,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:44:04,257 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:44:04,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 18:44:04,257 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 3 more)] === [2023-08-25 18:44:04,257 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:44:04,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1972944589, now seen corresponding path program 1 times [2023-08-25 18:44:04,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:44:04,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90795372] [2023-08-25 18:44:04,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:44:04,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:44:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:44:04,333 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 18:44:04,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:44:04,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90795372] [2023-08-25 18:44:04,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90795372] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:44:04,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:44:04,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 18:44:04,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672208071] [2023-08-25 18:44:04,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:44:04,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 18:44:04,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:44:04,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 18:44:04,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 18:44:04,336 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 166 [2023-08-25 18:44:04,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 29 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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 18:44:04,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:44:04,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 166 [2023-08-25 18:44:04,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:44:04,378 INFO L124 PetriNetUnfolderBase]: 110/340 cut-off events. [2023-08-25 18:44:04,378 INFO L125 PetriNetUnfolderBase]: For 61/62 co-relation queries the response was YES. [2023-08-25 18:44:04,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 700 conditions, 340 events. 110/340 cut-off events. For 61/62 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1825 event pairs, 57 based on Foata normal form. 1/324 useless extension candidates. Maximal degree in co-relation 690. Up to 148 conditions per place. [2023-08-25 18:44:04,380 INFO L140 encePairwiseOnDemand]: 162/166 looper letters, 30 selfloop transitions, 3 changer transitions 0/42 dead transitions. [2023-08-25 18:44:04,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 42 transitions, 180 flow [2023-08-25 18:44:04,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 18:44:04,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 18:44:04,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2023-08-25 18:44:04,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5582329317269076 [2023-08-25 18:44:04,383 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 278 transitions. [2023-08-25 18:44:04,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 278 transitions. [2023-08-25 18:44:04,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:44:04,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 278 transitions. [2023-08-25 18:44:04,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 18:44:04,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 18:44:04,386 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 18:44:04,386 INFO L175 Difference]: Start difference. First operand has 33 places, 29 transitions, 82 flow. Second operand 3 states and 278 transitions. [2023-08-25 18:44:04,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 42 transitions, 180 flow [2023-08-25 18:44:04,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 42 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 18:44:04,388 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 92 flow [2023-08-25 18:44:04,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2023-08-25 18:44:04,389 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2023-08-25 18:44:04,389 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 92 flow [2023-08-25 18:44:04,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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 18:44:04,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:44:04,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:44:04,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 18:44:04,389 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 3 more)] === [2023-08-25 18:44:04,390 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:44:04,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1972933533, now seen corresponding path program 1 times [2023-08-25 18:44:04,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:44:04,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874272852] [2023-08-25 18:44:04,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:44:04,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:44:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:44:04,408 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 18:44:04,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:44:04,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874272852] [2023-08-25 18:44:04,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874272852] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:44:04,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:44:04,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 18:44:04,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683103277] [2023-08-25 18:44:04,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:44:04,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 18:44:04,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:44:04,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 18:44:04,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 18:44:04,410 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 166 [2023-08-25 18:44:04,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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 18:44:04,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:44:04,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 166 [2023-08-25 18:44:04,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:44:04,458 INFO L124 PetriNetUnfolderBase]: 194/481 cut-off events. [2023-08-25 18:44:04,458 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2023-08-25 18:44:04,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1080 conditions, 481 events. 194/481 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2592 event pairs, 143 based on Foata normal form. 0/415 useless extension candidates. Maximal degree in co-relation 1067. Up to 409 conditions per place. [2023-08-25 18:44:04,461 INFO L140 encePairwiseOnDemand]: 161/166 looper letters, 32 selfloop transitions, 4 changer transitions 0/38 dead transitions. [2023-08-25 18:44:04,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 38 transitions, 186 flow [2023-08-25 18:44:04,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 18:44:04,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 18:44:04,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-08-25 18:44:04,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5140562248995983 [2023-08-25 18:44:04,463 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-08-25 18:44:04,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-08-25 18:44:04,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:44:04,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-08-25 18:44:04,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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 18:44:04,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 18:44:04,465 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 18:44:04,465 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 92 flow. Second operand 3 states and 256 transitions. [2023-08-25 18:44:04,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 38 transitions, 186 flow [2023-08-25 18:44:04,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 38 transitions, 178 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 18:44:04,466 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 118 flow [2023-08-25 18:44:04,467 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2023-08-25 18:44:04,467 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 7 predicate places. [2023-08-25 18:44:04,467 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 118 flow [2023-08-25 18:44:04,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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 18:44:04,467 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:44:04,467 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:44:04,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 18:44:04,468 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 3 more)] === [2023-08-25 18:44:04,468 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:44:04,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1981485192, now seen corresponding path program 1 times [2023-08-25 18:44:04,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:44:04,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811555499] [2023-08-25 18:44:04,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:44:04,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:44:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:44:04,485 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 18:44:04,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:44:04,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811555499] [2023-08-25 18:44:04,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811555499] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:44:04,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:44:04,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 18:44:04,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300830911] [2023-08-25 18:44:04,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:44:04,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 18:44:04,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:44:04,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 18:44:04,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 18:44:04,487 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 166 [2023-08-25 18:44:04,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 18:44:04,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:44:04,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 166 [2023-08-25 18:44:04,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:44:04,556 INFO L124 PetriNetUnfolderBase]: 184/462 cut-off events. [2023-08-25 18:44:04,556 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2023-08-25 18:44:04,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1119 conditions, 462 events. 184/462 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2475 event pairs, 98 based on Foata normal form. 0/431 useless extension candidates. Maximal degree in co-relation 1106. Up to 375 conditions per place. [2023-08-25 18:44:04,558 INFO L140 encePairwiseOnDemand]: 160/166 looper letters, 39 selfloop transitions, 7 changer transitions 4/52 dead transitions. [2023-08-25 18:44:04,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 52 transitions, 284 flow [2023-08-25 18:44:04,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 18:44:04,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 18:44:04,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 269 transitions. [2023-08-25 18:44:04,559 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5401606425702812 [2023-08-25 18:44:04,559 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 269 transitions. [2023-08-25 18:44:04,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 269 transitions. [2023-08-25 18:44:04,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:44:04,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 269 transitions. [2023-08-25 18:44:04,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 18:44:04,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 18:44:04,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 18:44:04,562 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 118 flow. Second operand 3 states and 269 transitions. [2023-08-25 18:44:04,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 52 transitions, 284 flow [2023-08-25 18:44:04,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 52 transitions, 268 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 18:44:04,565 INFO L231 Difference]: Finished difference. Result has 38 places, 37 transitions, 153 flow [2023-08-25 18:44:04,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=38, PETRI_TRANSITIONS=37} [2023-08-25 18:44:04,566 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 8 predicate places. [2023-08-25 18:44:04,566 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 37 transitions, 153 flow [2023-08-25 18:44:04,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 18:44:04,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:44:04,566 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:44:04,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 18:44:04,567 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 3 more)] === [2023-08-25 18:44:04,567 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:44:04,567 INFO L85 PathProgramCache]: Analyzing trace with hash -2132526946, now seen corresponding path program 1 times [2023-08-25 18:44:04,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:44:04,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619730752] [2023-08-25 18:44:04,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:44:04,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:44:04,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:44:04,636 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 18:44:04,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:44:04,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619730752] [2023-08-25 18:44:04,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619730752] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:44:04,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:44:04,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 18:44:04,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105392968] [2023-08-25 18:44:04,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:44:04,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 18:44:04,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:44:04,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 18:44:04,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 18:44:04,638 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 166 [2023-08-25 18:44:04,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 37 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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 18:44:04,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:44:04,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 166 [2023-08-25 18:44:04,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:44:04,684 INFO L124 PetriNetUnfolderBase]: 92/269 cut-off events. [2023-08-25 18:44:04,685 INFO L125 PetriNetUnfolderBase]: For 99/107 co-relation queries the response was YES. [2023-08-25 18:44:04,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 269 events. 92/269 cut-off events. For 99/107 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1280 event pairs, 20 based on Foata normal form. 11/272 useless extension candidates. Maximal degree in co-relation 653. Up to 154 conditions per place. [2023-08-25 18:44:04,686 INFO L140 encePairwiseOnDemand]: 159/166 looper letters, 23 selfloop transitions, 6 changer transitions 15/50 dead transitions. [2023-08-25 18:44:04,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 50 transitions, 272 flow [2023-08-25 18:44:04,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 18:44:04,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 18:44:04,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2023-08-25 18:44:04,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5020080321285141 [2023-08-25 18:44:04,688 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 250 transitions. [2023-08-25 18:44:04,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 250 transitions. [2023-08-25 18:44:04,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:44:04,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 250 transitions. [2023-08-25 18:44:04,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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 18:44:04,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 18:44:04,690 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 18:44:04,690 INFO L175 Difference]: Start difference. First operand has 38 places, 37 transitions, 153 flow. Second operand 3 states and 250 transitions. [2023-08-25 18:44:04,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 50 transitions, 272 flow [2023-08-25 18:44:04,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 50 transitions, 246 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-08-25 18:44:04,692 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 120 flow [2023-08-25 18:44:04,692 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2023-08-25 18:44:04,693 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 7 predicate places. [2023-08-25 18:44:04,693 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 120 flow [2023-08-25 18:44:04,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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 18:44:04,693 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:44:04,693 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:44:04,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 18:44:04,693 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 3 more)] === [2023-08-25 18:44:04,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:44:04,694 INFO L85 PathProgramCache]: Analyzing trace with hash -517209272, now seen corresponding path program 1 times [2023-08-25 18:44:04,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:44:04,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129797705] [2023-08-25 18:44:04,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:44:04,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:44:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 18:44:04,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 18:44:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 18:44:04,729 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 18:44:04,729 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 18:44:04,730 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (5 of 6 remaining) [2023-08-25 18:44:04,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2023-08-25 18:44:04,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2023-08-25 18:44:04,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-08-25 18:44:04,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2023-08-25 18:44:04,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2023-08-25 18:44:04,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 18:44:04,737 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-25 18:44:04,741 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 18:44:04,741 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 18:44:04,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 06:44:04 BasicIcfg [2023-08-25 18:44:04,755 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 18:44:04,756 INFO L158 Benchmark]: Toolchain (without parser) took 3866.12ms. Allocated memory was 394.3MB in the beginning and 539.0MB in the end (delta: 144.7MB). Free memory was 369.5MB in the beginning and 375.7MB in the end (delta: -6.2MB). Peak memory consumption was 136.8MB. Max. memory is 16.0GB. [2023-08-25 18:44:04,756 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 394.3MB. Free memory was 370.9MB in the beginning and 370.8MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 18:44:04,756 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.23ms. Allocated memory is still 394.3MB. Free memory was 369.1MB in the beginning and 349.9MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 18:44:04,756 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.56ms. Allocated memory is still 394.3MB. Free memory was 349.9MB in the beginning and 347.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 18:44:04,756 INFO L158 Benchmark]: Boogie Preprocessor took 24.92ms. Allocated memory is still 394.3MB. Free memory was 347.8MB in the beginning and 346.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 18:44:04,757 INFO L158 Benchmark]: RCFGBuilder took 309.43ms. Allocated memory is still 394.3MB. Free memory was 346.5MB in the beginning and 332.9MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 18:44:04,757 INFO L158 Benchmark]: TraceAbstraction took 3127.93ms. Allocated memory was 394.3MB in the beginning and 539.0MB in the end (delta: 144.7MB). Free memory was 332.2MB in the beginning and 375.7MB in the end (delta: -43.5MB). Peak memory consumption was 101.2MB. Max. memory is 16.0GB. [2023-08-25 18:44:04,758 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 394.3MB. Free memory was 370.9MB in the beginning and 370.8MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 357.23ms. Allocated memory is still 394.3MB. Free memory was 369.1MB in the beginning and 349.9MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 42.56ms. Allocated memory is still 394.3MB. Free memory was 349.9MB in the beginning and 347.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 24.92ms. Allocated memory is still 394.3MB. Free memory was 347.8MB in the beginning and 346.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 309.43ms. Allocated memory is still 394.3MB. Free memory was 346.5MB in the beginning and 332.9MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 3127.93ms. Allocated memory was 394.3MB in the beginning and 539.0MB in the end (delta: 144.7MB). Free memory was 332.2MB in the beginning and 375.7MB in the end (delta: -43.5MB). Peak memory consumption was 101.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] - GenericResultAtLocation [Line: 233]: Unsoundness Warning unspecified type, defaulting to int C: short [233] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 90 PlacesBefore, 30 PlacesAfterwards, 89 TransitionsBefore, 28 TransitionsAfterwards, 1200 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 4044 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1402, independent: 1142, independent conditional: 0, independent unconditional: 1142, dependent: 260, dependent conditional: 0, dependent unconditional: 260, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 602, independent: 564, independent conditional: 0, independent unconditional: 564, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1402, independent: 578, independent conditional: 0, independent unconditional: 578, dependent: 222, dependent conditional: 0, dependent unconditional: 222, unknown: 602, unknown conditional: 0, unknown unconditional: 602] , Statistics on independence cache: Total cache size (in pairs): 66, Positive cache size: 45, Positive conditional cache size: 0, Positive unconditional cache size: 45, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 18]: assertion can be violated assertion can be violated We found a FailurePath: [L682] 0 int g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, arg={0:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=1] [L700] COND TRUE 0 \read(r) [L701] 0 g = 17 [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(!(t == 17)) [L19] COND TRUE 0 !(cond) [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) [L18] 0 __assert_fail ("0", "36-apron_17-traces-rpb-litmus_unknown_1_neg.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [A={3:0}, B={4:0}, arg={0:0}, g=17] - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 105 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 243 IncrementalHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 15 mSDtfsCounter, 243 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=153occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-25 18:44:04,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...