/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 02:06:10,028 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 02:06:10,099 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-NoLbe.epf [2023-11-30 02:06:10,125 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 02:06:10,126 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 02:06:10,126 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 02:06:10,127 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 02:06:10,127 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 02:06:10,127 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 02:06:10,130 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 02:06:10,131 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 02:06:10,131 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 02:06:10,131 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 02:06:10,132 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 02:06:10,132 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 02:06:10,132 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 02:06:10,133 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 02:06:10,133 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 02:06:10,133 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 02:06:10,133 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 02:06:10,133 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 02:06:10,134 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 02:06:10,134 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 02:06:10,134 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 02:06:10,134 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 02:06:10,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 02:06:10,134 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 02:06:10,135 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 02:06:10,135 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 02:06:10,135 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 02:06:10,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 02:06:10,136 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 02:06:10,136 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 02:06:10,136 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2023-11-30 02:06:10,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 02:06:10,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 02:06:10,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 02:06:10,328 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 02:06:10,329 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 02:06:10,329 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2023-11-30 02:06:11,357 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 02:06:11,527 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 02:06:11,527 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2023-11-30 02:06:11,536 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a6ae094c/adc75f1fea4a4bce84eb51fe04c32f61/FLAGd27032ff0 [2023-11-30 02:06:11,552 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a6ae094c/adc75f1fea4a4bce84eb51fe04c32f61 [2023-11-30 02:06:11,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 02:06:11,555 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 02:06:11,556 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 02:06:11,556 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 02:06:11,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 02:06:11,560 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:06:11" (1/1) ... [2023-11-30 02:06:11,561 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d146cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:06:11, skipping insertion in model container [2023-11-30 02:06:11,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:06:11" (1/1) ... [2023-11-30 02:06:11,594 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 02:06:11,818 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 02:06:11,829 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 02:06:11,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 02:06:11,904 INFO L206 MainTranslator]: Completed translation [2023-11-30 02:06:11,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:06:11 WrapperNode [2023-11-30 02:06:11,905 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 02:06:11,906 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 02:06:11,906 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 02:06:11,906 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 02:06:11,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:06:11" (1/1) ... [2023-11-30 02:06:11,923 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:06:11" (1/1) ... [2023-11-30 02:06:11,938 INFO L138 Inliner]: procedures = 163, calls = 27, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 134 [2023-11-30 02:06:11,939 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 02:06:11,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 02:06:11,939 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 02:06:11,939 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 02:06:11,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:06:11" (1/1) ... [2023-11-30 02:06:11,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:06:11" (1/1) ... [2023-11-30 02:06:11,947 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:06:11" (1/1) ... [2023-11-30 02:06:11,947 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:06:11" (1/1) ... [2023-11-30 02:06:11,957 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:06:11" (1/1) ... [2023-11-30 02:06:11,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:06:11" (1/1) ... [2023-11-30 02:06:11,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:06:11" (1/1) ... [2023-11-30 02:06:11,961 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:06:11" (1/1) ... [2023-11-30 02:06:11,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 02:06:11,963 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 02:06:11,963 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 02:06:11,963 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 02:06:11,964 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:06:11" (1/1) ... [2023-11-30 02:06:11,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 02:06:11,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 02:06:11,982 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) [2023-11-30 02:06:11,997 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 [2023-11-30 02:06:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 02:06:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 02:06:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 02:06:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 02:06:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 02:06:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-30 02:06:12,006 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-30 02:06:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 02:06:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 02:06:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 02:06:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 02:06:12,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 02:06:12,009 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 02:06:12,128 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 02:06:12,130 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 02:06:12,323 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 02:06:12,345 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 02:06:12,345 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 02:06:12,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:06:12 BoogieIcfgContainer [2023-11-30 02:06:12,347 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 02:06:12,348 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 02:06:12,348 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 02:06:12,350 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 02:06:12,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:06:11" (1/3) ... [2023-11-30 02:06:12,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4a6ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:06:12, skipping insertion in model container [2023-11-30 02:06:12,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:06:11" (2/3) ... [2023-11-30 02:06:12,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4a6ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:06:12, skipping insertion in model container [2023-11-30 02:06:12,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:06:12" (3/3) ... [2023-11-30 02:06:12,352 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_01-priv_nr_true.i [2023-11-30 02:06:12,364 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 02:06:12,364 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-30 02:06:12,364 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 02:06:12,434 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-30 02:06:12,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 164 transitions, 335 flow [2023-11-30 02:06:12,543 INFO L124 PetriNetUnfolderBase]: 8/163 cut-off events. [2023-11-30 02:06:12,543 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 02:06:12,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 163 events. 8/163 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 205 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 107. Up to 2 conditions per place. [2023-11-30 02:06:12,558 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 164 transitions, 335 flow [2023-11-30 02:06:12,561 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 155 transitions, 313 flow [2023-11-30 02:06:12,566 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 02:06:12,572 INFO L362 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6dfd26aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 02:06:12,572 INFO L363 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-30 02:06:12,580 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 02:06:12,581 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2023-11-30 02:06:12,581 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 02:06:12,581 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:06:12,581 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 02:06:12,581 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-11-30 02:06:12,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:06:12,587 INFO L85 PathProgramCache]: Analyzing trace with hash 103117281, now seen corresponding path program 1 times [2023-11-30 02:06:12,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:06:12,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823389831] [2023-11-30 02:06:12,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:06:12,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:06:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:06:12,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:06:12,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:06:12,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823389831] [2023-11-30 02:06:12,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823389831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:06:12,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:06:12,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 02:06:12,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099028387] [2023-11-30 02:06:12,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:06:12,738 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 02:06:12,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:06:12,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 02:06:12,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 02:06:12,762 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 164 [2023-11-30 02:06:12,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 155 transitions, 313 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2023-11-30 02:06:12,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:06:12,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 164 [2023-11-30 02:06:12,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:06:12,945 INFO L124 PetriNetUnfolderBase]: 258/1337 cut-off events. [2023-11-30 02:06:12,946 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 02:06:12,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1916 conditions, 1337 events. 258/1337 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 9260 event pairs, 103 based on Foata normal form. 126/1268 useless extension candidates. Maximal degree in co-relation 1866. Up to 304 conditions per place. [2023-11-30 02:06:12,953 INFO L140 encePairwiseOnDemand]: 135/164 looper letters, 45 selfloop transitions, 15 changer transitions 3/160 dead transitions. [2023-11-30 02:06:12,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 160 transitions, 443 flow [2023-11-30 02:06:12,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 02:06:12,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 02:06:12,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 428 transitions. [2023-11-30 02:06:12,962 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8699186991869918 [2023-11-30 02:06:12,963 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 428 transitions. [2023-11-30 02:06:12,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 428 transitions. [2023-11-30 02:06:12,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:06:12,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 428 transitions. [2023-11-30 02:06:12,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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) [2023-11-30 02:06:12,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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) [2023-11-30 02:06:12,970 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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) [2023-11-30 02:06:12,972 INFO L307 CegarLoopForPetriNet]: 151 programPoint places, -11 predicate places. [2023-11-30 02:06:12,972 INFO L500 AbstractCegarLoop]: Abstraction has has 140 places, 160 transitions, 443 flow [2023-11-30 02:06:12,973 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2023-11-30 02:06:12,973 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:06:12,973 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 02:06:12,973 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 02:06:12,973 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-11-30 02:06:12,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:06:12,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1721574751, now seen corresponding path program 1 times [2023-11-30 02:06:12,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:06:12,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494241400] [2023-11-30 02:06:12,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:06:12,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:06:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:06:13,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:06:13,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:06:13,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494241400] [2023-11-30 02:06:13,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494241400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:06:13,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:06:13,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 02:06:13,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751083993] [2023-11-30 02:06:13,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:06:13,033 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 02:06:13,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:06:13,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 02:06:13,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 02:06:13,035 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 164 [2023-11-30 02:06:13,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 160 transitions, 443 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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) [2023-11-30 02:06:13,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:06:13,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 164 [2023-11-30 02:06:13,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:06:13,256 INFO L124 PetriNetUnfolderBase]: 304/1485 cut-off events. [2023-11-30 02:06:13,256 INFO L125 PetriNetUnfolderBase]: For 154/238 co-relation queries the response was YES. [2023-11-30 02:06:13,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2784 conditions, 1485 events. 304/1485 cut-off events. For 154/238 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 10524 event pairs, 95 based on Foata normal form. 2/1292 useless extension candidates. Maximal degree in co-relation 2729. Up to 603 conditions per place. [2023-11-30 02:06:13,262 INFO L140 encePairwiseOnDemand]: 156/164 looper letters, 73 selfloop transitions, 11 changer transitions 3/181 dead transitions. [2023-11-30 02:06:13,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 181 transitions, 693 flow [2023-11-30 02:06:13,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 02:06:13,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 02:06:13,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2023-11-30 02:06:13,266 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7926829268292683 [2023-11-30 02:06:13,266 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 390 transitions. [2023-11-30 02:06:13,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 390 transitions. [2023-11-30 02:06:13,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:06:13,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 390 transitions. [2023-11-30 02:06:13,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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) [2023-11-30 02:06:13,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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) [2023-11-30 02:06:13,269 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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) [2023-11-30 02:06:13,270 INFO L307 CegarLoopForPetriNet]: 151 programPoint places, -9 predicate places. [2023-11-30 02:06:13,270 INFO L500 AbstractCegarLoop]: Abstraction has has 142 places, 181 transitions, 693 flow [2023-11-30 02:06:13,270 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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) [2023-11-30 02:06:13,270 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:06:13,270 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 02:06:13,271 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 02:06:13,271 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-11-30 02:06:13,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:06:13,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1319169960, now seen corresponding path program 1 times [2023-11-30 02:06:13,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:06:13,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667377197] [2023-11-30 02:06:13,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:06:13,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:06:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:06:13,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:06:13,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:06:13,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667377197] [2023-11-30 02:06:13,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667377197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:06:13,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:06:13,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 02:06:13,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209161732] [2023-11-30 02:06:13,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:06:13,456 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 02:06:13,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:06:13,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 02:06:13,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 02:06:13,457 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 164 [2023-11-30 02:06:13,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 181 transitions, 693 flow. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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) [2023-11-30 02:06:13,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:06:13,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 164 [2023-11-30 02:06:13,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:06:13,496 INFO L124 PetriNetUnfolderBase]: 1/207 cut-off events. [2023-11-30 02:06:13,497 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2023-11-30 02:06:13,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 207 events. 1/207 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 260 event pairs, 0 based on Foata normal form. 25/217 useless extension candidates. Maximal degree in co-relation 277. Up to 55 conditions per place. [2023-11-30 02:06:13,498 INFO L140 encePairwiseOnDemand]: 160/164 looper letters, 7 selfloop transitions, 6 changer transitions 6/132 dead transitions. [2023-11-30 02:06:13,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 132 transitions, 427 flow [2023-11-30 02:06:13,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 02:06:13,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 02:06:13,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 433 transitions. [2023-11-30 02:06:13,502 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8800813008130082 [2023-11-30 02:06:13,502 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 433 transitions. [2023-11-30 02:06:13,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 433 transitions. [2023-11-30 02:06:13,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:06:13,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 433 transitions. [2023-11-30 02:06:13,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 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) [2023-11-30 02:06:13,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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) [2023-11-30 02:06:13,505 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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) [2023-11-30 02:06:13,505 INFO L307 CegarLoopForPetriNet]: 151 programPoint places, -13 predicate places. [2023-11-30 02:06:13,506 INFO L500 AbstractCegarLoop]: Abstraction has has 138 places, 132 transitions, 427 flow [2023-11-30 02:06:13,506 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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) [2023-11-30 02:06:13,506 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:06:13,506 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 02:06:13,506 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 02:06:13,506 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-11-30 02:06:13,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:06:13,507 INFO L85 PathProgramCache]: Analyzing trace with hash 143325540, now seen corresponding path program 1 times [2023-11-30 02:06:13,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:06:13,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415210332] [2023-11-30 02:06:13,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:06:13,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:06:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:06:13,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:06:13,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:06:13,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415210332] [2023-11-30 02:06:13,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415210332] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:06:13,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:06:13,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 02:06:13,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311643347] [2023-11-30 02:06:13,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:06:13,556 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 02:06:13,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:06:13,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 02:06:13,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 02:06:13,558 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 164 [2023-11-30 02:06:13,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 132 transitions, 427 flow. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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) [2023-11-30 02:06:13,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:06:13,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 164 [2023-11-30 02:06:13,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:06:13,612 INFO L124 PetriNetUnfolderBase]: 1/205 cut-off events. [2023-11-30 02:06:13,612 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2023-11-30 02:06:13,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 205 events. 1/205 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 254 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 323. Up to 53 conditions per place. [2023-11-30 02:06:13,613 INFO L140 encePairwiseOnDemand]: 161/164 looper letters, 31 selfloop transitions, 2 changer transitions 6/131 dead transitions. [2023-11-30 02:06:13,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 131 transitions, 487 flow [2023-11-30 02:06:13,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 02:06:13,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 02:06:13,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2023-11-30 02:06:13,614 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7560975609756098 [2023-11-30 02:06:13,614 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 372 transitions. [2023-11-30 02:06:13,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 372 transitions. [2023-11-30 02:06:13,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:06:13,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 372 transitions. [2023-11-30 02:06:13,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 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) [2023-11-30 02:06:13,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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) [2023-11-30 02:06:13,616 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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) [2023-11-30 02:06:13,618 INFO L307 CegarLoopForPetriNet]: 151 programPoint places, -12 predicate places. [2023-11-30 02:06:13,618 INFO L500 AbstractCegarLoop]: Abstraction has has 139 places, 131 transitions, 487 flow [2023-11-30 02:06:13,619 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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) [2023-11-30 02:06:13,619 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:06:13,619 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 02:06:13,619 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 02:06:13,619 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-11-30 02:06:13,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:06:13,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1485557989, now seen corresponding path program 1 times [2023-11-30 02:06:13,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:06:13,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633325996] [2023-11-30 02:06:13,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:06:13,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:06:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:06:13,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:06:13,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:06:13,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633325996] [2023-11-30 02:06:13,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633325996] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:06:13,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:06:13,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 02:06:13,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253107963] [2023-11-30 02:06:13,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:06:13,693 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 02:06:13,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:06:13,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 02:06:13,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 02:06:13,694 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 164 [2023-11-30 02:06:13,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 131 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2023-11-30 02:06:13,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:06:13,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 164 [2023-11-30 02:06:13,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:06:13,739 INFO L124 PetriNetUnfolderBase]: 1/203 cut-off events. [2023-11-30 02:06:13,739 INFO L125 PetriNetUnfolderBase]: For 152/152 co-relation queries the response was YES. [2023-11-30 02:06:13,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 203 events. 1/203 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 249 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 365. Up to 51 conditions per place. [2023-11-30 02:06:13,740 INFO L140 encePairwiseOnDemand]: 161/164 looper letters, 31 selfloop transitions, 2 changer transitions 6/130 dead transitions. [2023-11-30 02:06:13,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 130 transitions, 545 flow [2023-11-30 02:06:13,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 02:06:13,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 02:06:13,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2023-11-30 02:06:13,742 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7439024390243902 [2023-11-30 02:06:13,742 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 366 transitions. [2023-11-30 02:06:13,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 366 transitions. [2023-11-30 02:06:13,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:06:13,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 366 transitions. [2023-11-30 02:06:13,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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) [2023-11-30 02:06:13,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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) [2023-11-30 02:06:13,744 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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) [2023-11-30 02:06:13,746 INFO L307 CegarLoopForPetriNet]: 151 programPoint places, -11 predicate places. [2023-11-30 02:06:13,747 INFO L500 AbstractCegarLoop]: Abstraction has has 140 places, 130 transitions, 545 flow [2023-11-30 02:06:13,747 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2023-11-30 02:06:13,747 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:06:13,747 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 02:06:13,747 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 02:06:13,748 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-11-30 02:06:13,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:06:13,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1879850750, now seen corresponding path program 1 times [2023-11-30 02:06:13,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:06:13,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723825365] [2023-11-30 02:06:13,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:06:13,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:06:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:06:13,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:06:13,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:06:13,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723825365] [2023-11-30 02:06:13,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723825365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:06:13,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:06:13,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 02:06:13,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877982582] [2023-11-30 02:06:13,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:06:13,790 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 02:06:13,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:06:13,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 02:06:13,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 02:06:13,791 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 164 [2023-11-30 02:06:13,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 130 transitions, 545 flow. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 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) [2023-11-30 02:06:13,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:06:13,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 164 [2023-11-30 02:06:13,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:06:13,841 INFO L124 PetriNetUnfolderBase]: 1/201 cut-off events. [2023-11-30 02:06:13,842 INFO L125 PetriNetUnfolderBase]: For 234/234 co-relation queries the response was YES. [2023-11-30 02:06:13,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 201 events. 1/201 cut-off events. For 234/234 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 242 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 403. Up to 49 conditions per place. [2023-11-30 02:06:13,842 INFO L140 encePairwiseOnDemand]: 161/164 looper letters, 29 selfloop transitions, 2 changer transitions 6/129 dead transitions. [2023-11-30 02:06:13,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 129 transitions, 597 flow [2023-11-30 02:06:13,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 02:06:13,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 02:06:13,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2023-11-30 02:06:13,844 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7520325203252033 [2023-11-30 02:06:13,844 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 370 transitions. [2023-11-30 02:06:13,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 370 transitions. [2023-11-30 02:06:13,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:06:13,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 370 transitions. [2023-11-30 02:06:13,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 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) [2023-11-30 02:06:13,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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) [2023-11-30 02:06:13,846 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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) [2023-11-30 02:06:13,846 INFO L307 CegarLoopForPetriNet]: 151 programPoint places, -10 predicate places. [2023-11-30 02:06:13,846 INFO L500 AbstractCegarLoop]: Abstraction has has 141 places, 129 transitions, 597 flow [2023-11-30 02:06:13,846 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 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) [2023-11-30 02:06:13,847 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:06:13,847 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 02:06:13,847 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 02:06:13,847 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-11-30 02:06:13,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:06:13,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1607363764, now seen corresponding path program 1 times [2023-11-30 02:06:13,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:06:13,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735669454] [2023-11-30 02:06:13,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:06:13,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:06:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:06:14,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:06:14,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:06:14,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735669454] [2023-11-30 02:06:14,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735669454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:06:14,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:06:14,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 02:06:14,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668307609] [2023-11-30 02:06:14,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:06:14,172 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 02:06:14,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:06:14,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 02:06:14,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 02:06:14,174 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 164 [2023-11-30 02:06:14,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 129 transitions, 597 flow. Second operand has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 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) [2023-11-30 02:06:14,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:06:14,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 164 [2023-11-30 02:06:14,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:06:14,221 INFO L124 PetriNetUnfolderBase]: 13/251 cut-off events. [2023-11-30 02:06:14,222 INFO L125 PetriNetUnfolderBase]: For 512/512 co-relation queries the response was YES. [2023-11-30 02:06:14,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 688 conditions, 251 events. 13/251 cut-off events. For 512/512 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 517 event pairs, 1 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 607. Up to 69 conditions per place. [2023-11-30 02:06:14,222 INFO L140 encePairwiseOnDemand]: 159/164 looper letters, 0 selfloop transitions, 0 changer transitions 136/136 dead transitions. [2023-11-30 02:06:14,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 136 transitions, 755 flow [2023-11-30 02:06:14,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 02:06:14,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 02:06:14,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 821 transitions. [2023-11-30 02:06:14,224 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.834349593495935 [2023-11-30 02:06:14,224 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 821 transitions. [2023-11-30 02:06:14,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 821 transitions. [2023-11-30 02:06:14,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:06:14,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 821 transitions. [2023-11-30 02:06:14,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 136.83333333333334) internal successors, (821), 6 states have internal predecessors, (821), 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) [2023-11-30 02:06:14,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 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) [2023-11-30 02:06:14,228 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 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) [2023-11-30 02:06:14,229 INFO L307 CegarLoopForPetriNet]: 151 programPoint places, -6 predicate places. [2023-11-30 02:06:14,229 INFO L500 AbstractCegarLoop]: Abstraction has has 145 places, 136 transitions, 755 flow [2023-11-30 02:06:14,230 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 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) [2023-11-30 02:06:14,234 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/13-privatized_01-priv_nr_true.i_BEv2_AllErrorsAtOnce [2023-11-30 02:06:14,258 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 16 remaining) [2023-11-30 02:06:14,258 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2023-11-30 02:06:14,258 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2023-11-30 02:06:14,258 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2023-11-30 02:06:14,258 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2023-11-30 02:06:14,259 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2023-11-30 02:06:14,259 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2023-11-30 02:06:14,259 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2023-11-30 02:06:14,259 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2023-11-30 02:06:14,259 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2023-11-30 02:06:14,259 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2023-11-30 02:06:14,259 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2023-11-30 02:06:14,259 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2023-11-30 02:06:14,259 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2023-11-30 02:06:14,259 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2023-11-30 02:06:14,259 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2023-11-30 02:06:14,260 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 02:06:14,260 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-30 02:06:14,263 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 02:06:14,263 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 02:06:14,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:06:14 BasicIcfg [2023-11-30 02:06:14,267 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 02:06:14,268 INFO L158 Benchmark]: Toolchain (without parser) took 2712.50ms. Allocated memory is still 480.2MB. Free memory was 433.8MB in the beginning and 334.1MB in the end (delta: 99.7MB). Peak memory consumption was 100.1MB. Max. memory is 16.0GB. [2023-11-30 02:06:14,268 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 339.7MB. Free memory is still 289.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 02:06:14,268 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.27ms. Allocated memory is still 480.2MB. Free memory was 433.8MB in the beginning and 414.1MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-11-30 02:06:14,268 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.91ms. Allocated memory is still 480.2MB. Free memory was 414.1MB in the beginning and 411.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 02:06:14,268 INFO L158 Benchmark]: Boogie Preprocessor took 23.35ms. Allocated memory is still 480.2MB. Free memory was 411.7MB in the beginning and 410.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 02:06:14,268 INFO L158 Benchmark]: RCFGBuilder took 383.51ms. Allocated memory is still 480.2MB. Free memory was 410.0MB in the beginning and 390.8MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-11-30 02:06:14,269 INFO L158 Benchmark]: TraceAbstraction took 1919.08ms. Allocated memory is still 480.2MB. Free memory was 390.1MB in the beginning and 334.1MB in the end (delta: 56.0MB). Peak memory consumption was 58.1MB. Max. memory is 16.0GB. [2023-11-30 02:06:14,270 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 339.7MB. Free memory is still 289.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 349.27ms. Allocated memory is still 480.2MB. Free memory was 433.8MB in the beginning and 414.1MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 32.91ms. Allocated memory is still 480.2MB. Free memory was 414.1MB in the beginning and 411.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.35ms. Allocated memory is still 480.2MB. Free memory was 411.7MB in the beginning and 410.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 383.51ms. Allocated memory is still 480.2MB. Free memory was 410.0MB in the beginning and 390.8MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 1919.08ms. Allocated memory is still 480.2MB. Free memory was 390.1MB in the beginning and 334.1MB in the end (delta: 56.0MB). Peak memory consumption was 58.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 701]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 704]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 689]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 690]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 210 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 136 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 245 IncrementalHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 136 mSDtfsCounter, 245 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=755occurred in iteration=7, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 403 NumberOfCodeBlocks, 403 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 396 ConstructedInterpolants, 0 QuantifiedInterpolants, 505 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 02:06:14,282 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...