/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 PROGRAM_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/pthread-C-DAC/pthread-demo-datarace-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 06:51:53,518 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 06:51:53,566 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 [2023-08-26 06:51:53,570 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 06:51:53,571 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 06:51:53,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 06:51:53,605 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 06:51:53,609 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 06:51:53,610 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 06:51:53,614 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 06:51:53,614 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 06:51:53,615 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 06:51:53,615 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 06:51:53,616 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 06:51:53,616 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 06:51:53,617 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 06:51:53,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 06:51:53,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 06:51:53,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 06:51:53,618 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 06:51:53,618 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 06:51:53,619 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 06:51:53,619 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 06:51:53,619 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 06:51:53,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 06:51:53,620 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 06:51:53,620 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 06:51:53,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:51:53,620 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 06:51:53,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 06:51:53,622 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 06:51:53,622 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 06:51:53,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 06:51:53,622 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 06:51:53,622 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 06:51:53,623 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 06:51:53,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 06:51:53,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 06:51:53,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 06:51:53,924 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 06:51:53,924 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 06:51:53,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2023-08-26 06:51:55,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 06:51:55,381 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 06:51:55,382 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2023-08-26 06:51:55,409 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37440b2ee/0821f9d9552e4ebd8e9c25848f23de37/FLAG9f527f3b4 [2023-08-26 06:51:55,424 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37440b2ee/0821f9d9552e4ebd8e9c25848f23de37 [2023-08-26 06:51:55,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 06:51:55,431 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 06:51:55,435 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 06:51:55,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 06:51:55,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 06:51:55,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:51:55" (1/1) ... [2023-08-26 06:51:55,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e3d9b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:51:55, skipping insertion in model container [2023-08-26 06:51:55,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:51:55" (1/1) ... [2023-08-26 06:51:55,500 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 06:51:56,080 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:51:56,094 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 06:51:56,119 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [245] [2023-08-26 06:51:56,121 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [246] [2023-08-26 06:51:56,135 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [1102] [2023-08-26 06:51:56,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:51:56,240 INFO L206 MainTranslator]: Completed translation [2023-08-26 06:51:56,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:51:56 WrapperNode [2023-08-26 06:51:56,243 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 06:51:56,244 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 06:51:56,244 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 06:51:56,244 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 06:51:56,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:51:56" (1/1) ... [2023-08-26 06:51:56,269 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:51:56" (1/1) ... [2023-08-26 06:51:56,295 INFO L138 Inliner]: procedures = 364, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2023-08-26 06:51:56,299 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 06:51:56,299 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 06:51:56,300 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 06:51:56,300 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 06:51:56,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:51:56" (1/1) ... [2023-08-26 06:51:56,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:51:56" (1/1) ... [2023-08-26 06:51:56,316 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:51:56" (1/1) ... [2023-08-26 06:51:56,316 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:51:56" (1/1) ... [2023-08-26 06:51:56,321 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:51:56" (1/1) ... [2023-08-26 06:51:56,323 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:51:56" (1/1) ... [2023-08-26 06:51:56,325 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:51:56" (1/1) ... [2023-08-26 06:51:56,326 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:51:56" (1/1) ... [2023-08-26 06:51:56,328 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 06:51:56,329 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 06:51:56,329 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 06:51:56,329 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 06:51:56,330 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:51:56" (1/1) ... [2023-08-26 06:51:56,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:51:56,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:51:56,355 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) [2023-08-26 06:51:56,383 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 [2023-08-26 06:51:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 06:51:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 06:51:56,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 06:51:56,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 06:51:56,394 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 06:51:56,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 06:51:56,394 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2023-08-26 06:51:56,394 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2023-08-26 06:51:56,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 06:51:56,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 06:51:56,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 06:51:56,396 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 06:51:56,518 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 06:51:56,520 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 06:51:56,664 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 06:51:56,670 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 06:51:56,671 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-26 06:51:56,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:51:56 BoogieIcfgContainer [2023-08-26 06:51:56,673 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 06:51:56,674 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 06:51:56,674 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 06:51:56,677 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 06:51:56,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 06:51:55" (1/3) ... [2023-08-26 06:51:56,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f162e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:51:56, skipping insertion in model container [2023-08-26 06:51:56,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:51:56" (2/3) ... [2023-08-26 06:51:56,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f162e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:51:56, skipping insertion in model container [2023-08-26 06:51:56,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:51:56" (3/3) ... [2023-08-26 06:51:56,679 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2023-08-26 06:51:56,692 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 06:51:56,693 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-26 06:51:56,693 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 06:51:56,738 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-26 06:51:56,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 120 transitions, 248 flow [2023-08-26 06:51:56,808 INFO L124 PetriNetUnfolderBase]: 8/119 cut-off events. [2023-08-26 06:51:56,809 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 06:51:56,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 119 events. 8/119 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 163 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2023-08-26 06:51:56,813 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 120 transitions, 248 flow [2023-08-26 06:51:56,817 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 109 transitions, 224 flow [2023-08-26 06:51:56,820 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 06:51:56,828 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 109 transitions, 224 flow [2023-08-26 06:51:56,841 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 109 transitions, 224 flow [2023-08-26 06:51:56,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 109 transitions, 224 flow [2023-08-26 06:51:56,886 INFO L124 PetriNetUnfolderBase]: 6/109 cut-off events. [2023-08-26 06:51:56,886 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 06:51:56,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 109 events. 6/109 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 147 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2023-08-26 06:51:56,888 INFO L119 LiptonReduction]: Number of co-enabled transitions 1782 [2023-08-26 06:51:59,263 INFO L134 LiptonReduction]: Checked pairs total: 4604 [2023-08-26 06:51:59,263 INFO L136 LiptonReduction]: Total number of compositions: 88 [2023-08-26 06:51:59,276 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 06:51:59,281 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;@703b4563, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 06:51:59,281 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-26 06:51:59,282 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 06:51:59,282 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-08-26 06:51:59,282 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:51:59,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:51:59,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 06:51:59,283 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-26 06:51:59,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:51:59,286 INFO L85 PathProgramCache]: Analyzing trace with hash 424, now seen corresponding path program 1 times [2023-08-26 06:51:59,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:51:59,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902260374] [2023-08-26 06:51:59,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:51:59,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:51:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:51:59,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:51:59,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:51:59,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902260374] [2023-08-26 06:51:59,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902260374] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:51:59,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:51:59,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 06:51:59,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65407929] [2023-08-26 06:51:59,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:51:59,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 06:51:59,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:51:59,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 06:51:59,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 06:51:59,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 208 [2023-08-26 06:51:59,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 30 transitions, 66 flow. Second operand has 2 states, 2 states have (on average 109.5) internal successors, (219), 2 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) [2023-08-26 06:51:59,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:51:59,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 208 [2023-08-26 06:51:59,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:51:59,442 INFO L124 PetriNetUnfolderBase]: 57/162 cut-off events. [2023-08-26 06:51:59,442 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 06:51:59,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 162 events. 57/162 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 632 event pairs, 42 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 270. Up to 117 conditions per place. [2023-08-26 06:51:59,445 INFO L140 encePairwiseOnDemand]: 205/208 looper letters, 19 selfloop transitions, 0 changer transitions 0/27 dead transitions. [2023-08-26 06:51:59,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 27 transitions, 98 flow [2023-08-26 06:51:59,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 06:51:59,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 06:51:59,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 240 transitions. [2023-08-26 06:51:59,456 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5769230769230769 [2023-08-26 06:51:59,456 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 240 transitions. [2023-08-26 06:51:59,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 240 transitions. [2023-08-26 06:51:59,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:51:59,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 240 transitions. [2023-08-26 06:51:59,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 120.0) internal successors, (240), 2 states have internal predecessors, (240), 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) [2023-08-26 06:51:59,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 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) [2023-08-26 06:51:59,466 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 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) [2023-08-26 06:51:59,468 INFO L175 Difference]: Start difference. First operand has 32 places, 30 transitions, 66 flow. Second operand 2 states and 240 transitions. [2023-08-26 06:51:59,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 27 transitions, 98 flow [2023-08-26 06:51:59,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 27 transitions, 94 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 06:51:59,471 INFO L231 Difference]: Finished difference. Result has 28 places, 27 transitions, 56 flow [2023-08-26 06:51:59,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=56, PETRI_PLACES=28, PETRI_TRANSITIONS=27} [2023-08-26 06:51:59,475 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -4 predicate places. [2023-08-26 06:51:59,475 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 27 transitions, 56 flow [2023-08-26 06:51:59,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 109.5) internal successors, (219), 2 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) [2023-08-26 06:51:59,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:51:59,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 06:51:59,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 06:51:59,476 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-26 06:51:59,477 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:51:59,477 INFO L85 PathProgramCache]: Analyzing trace with hash -482654658, now seen corresponding path program 1 times [2023-08-26 06:51:59,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:51:59,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357515280] [2023-08-26 06:51:59,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:51:59,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:51:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:51:59,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:51:59,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:51:59,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357515280] [2023-08-26 06:51:59,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357515280] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:51:59,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:51:59,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:51:59,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550848046] [2023-08-26 06:51:59,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:51:59,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:51:59,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:51:59,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:51:59,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:51:59,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 208 [2023-08-26 06:51:59,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 27 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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) [2023-08-26 06:51:59,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:51:59,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 208 [2023-08-26 06:51:59,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:51:59,644 INFO L124 PetriNetUnfolderBase]: 165/339 cut-off events. [2023-08-26 06:51:59,645 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:51:59,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 682 conditions, 339 events. 165/339 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1323 event pairs, 55 based on Foata normal form. 0/267 useless extension candidates. Maximal degree in co-relation 679. Up to 198 conditions per place. [2023-08-26 06:51:59,647 INFO L140 encePairwiseOnDemand]: 199/208 looper letters, 41 selfloop transitions, 7 changer transitions 0/48 dead transitions. [2023-08-26 06:51:59,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 48 transitions, 194 flow [2023-08-26 06:51:59,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:51:59,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:51:59,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 323 transitions. [2023-08-26 06:51:59,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5176282051282052 [2023-08-26 06:51:59,650 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 323 transitions. [2023-08-26 06:51:59,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 323 transitions. [2023-08-26 06:51:59,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:51:59,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 323 transitions. [2023-08-26 06:51:59,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2023-08-26 06:51:59,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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) [2023-08-26 06:51:59,655 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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) [2023-08-26 06:51:59,655 INFO L175 Difference]: Start difference. First operand has 28 places, 27 transitions, 56 flow. Second operand 3 states and 323 transitions. [2023-08-26 06:51:59,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 48 transitions, 194 flow [2023-08-26 06:51:59,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 48 transitions, 194 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 06:51:59,656 INFO L231 Difference]: Finished difference. Result has 32 places, 33 transitions, 112 flow [2023-08-26 06:51:59,657 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=32, PETRI_TRANSITIONS=33} [2023-08-26 06:51:59,657 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2023-08-26 06:51:59,657 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 33 transitions, 112 flow [2023-08-26 06:51:59,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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) [2023-08-26 06:51:59,658 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:51:59,658 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:51:59,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 06:51:59,658 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-26 06:51:59,659 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:51:59,659 INFO L85 PathProgramCache]: Analyzing trace with hash 91070421, now seen corresponding path program 1 times [2023-08-26 06:51:59,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:51:59,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667120081] [2023-08-26 06:51:59,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:51:59,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:51:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:51:59,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:51:59,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:51:59,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667120081] [2023-08-26 06:51:59,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667120081] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:51:59,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:51:59,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 06:51:59,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890904443] [2023-08-26 06:51:59,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:51:59,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:51:59,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:51:59,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:51:59,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:51:59,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 208 [2023-08-26 06:51:59,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 33 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2023-08-26 06:51:59,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:51:59,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 208 [2023-08-26 06:51:59,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:51:59,832 INFO L124 PetriNetUnfolderBase]: 165/418 cut-off events. [2023-08-26 06:51:59,832 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES. [2023-08-26 06:51:59,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 941 conditions, 418 events. 165/418 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1920 event pairs, 71 based on Foata normal form. 0/375 useless extension candidates. Maximal degree in co-relation 936. Up to 185 conditions per place. [2023-08-26 06:51:59,835 INFO L140 encePairwiseOnDemand]: 205/208 looper letters, 34 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2023-08-26 06:51:59,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 48 transitions, 226 flow [2023-08-26 06:51:59,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:51:59,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:51:59,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2023-08-26 06:51:59,837 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5480769230769231 [2023-08-26 06:51:59,838 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2023-08-26 06:51:59,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2023-08-26 06:51:59,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:51:59,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2023-08-26 06:51:59,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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) [2023-08-26 06:51:59,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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) [2023-08-26 06:51:59,842 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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) [2023-08-26 06:51:59,842 INFO L175 Difference]: Start difference. First operand has 32 places, 33 transitions, 112 flow. Second operand 3 states and 342 transitions. [2023-08-26 06:51:59,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 48 transitions, 226 flow [2023-08-26 06:51:59,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 48 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 06:51:59,845 INFO L231 Difference]: Finished difference. Result has 33 places, 34 transitions, 110 flow [2023-08-26 06:51:59,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=33, PETRI_TRANSITIONS=34} [2023-08-26 06:51:59,845 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2023-08-26 06:51:59,846 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 34 transitions, 110 flow [2023-08-26 06:51:59,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2023-08-26 06:51:59,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:51:59,846 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:51:59,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 06:51:59,847 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-26 06:51:59,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:51:59,847 INFO L85 PathProgramCache]: Analyzing trace with hash 891018521, now seen corresponding path program 1 times [2023-08-26 06:51:59,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:51:59,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343912618] [2023-08-26 06:51:59,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:51:59,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:51:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:51:59,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:51:59,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:51:59,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343912618] [2023-08-26 06:51:59,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343912618] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:51:59,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:51:59,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:51:59,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406042946] [2023-08-26 06:51:59,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:51:59,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:51:59,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:51:59,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:51:59,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:51:59,883 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 208 [2023-08-26 06:51:59,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 34 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2023-08-26 06:51:59,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:51:59,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 208 [2023-08-26 06:51:59,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:51:59,964 INFO L124 PetriNetUnfolderBase]: 299/610 cut-off events. [2023-08-26 06:51:59,964 INFO L125 PetriNetUnfolderBase]: For 103/103 co-relation queries the response was YES. [2023-08-26 06:51:59,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1496 conditions, 610 events. 299/610 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2590 event pairs, 163 based on Foata normal form. 0/514 useless extension candidates. Maximal degree in co-relation 1490. Up to 558 conditions per place. [2023-08-26 06:51:59,968 INFO L140 encePairwiseOnDemand]: 203/208 looper letters, 43 selfloop transitions, 6 changer transitions 0/49 dead transitions. [2023-08-26 06:51:59,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 49 transitions, 258 flow [2023-08-26 06:51:59,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:51:59,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:51:59,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2023-08-26 06:51:59,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48878205128205127 [2023-08-26 06:51:59,969 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 305 transitions. [2023-08-26 06:51:59,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 305 transitions. [2023-08-26 06:51:59,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:51:59,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 305 transitions. [2023-08-26 06:51:59,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2023-08-26 06:51:59,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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) [2023-08-26 06:51:59,972 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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) [2023-08-26 06:51:59,973 INFO L175 Difference]: Start difference. First operand has 33 places, 34 transitions, 110 flow. Second operand 3 states and 305 transitions. [2023-08-26 06:51:59,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 49 transitions, 258 flow [2023-08-26 06:51:59,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 49 transitions, 254 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:51:59,975 INFO L231 Difference]: Finished difference. Result has 35 places, 38 transitions, 150 flow [2023-08-26 06:51:59,975 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=35, PETRI_TRANSITIONS=38} [2023-08-26 06:51:59,976 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2023-08-26 06:51:59,976 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 38 transitions, 150 flow [2023-08-26 06:51:59,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2023-08-26 06:51:59,976 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:51:59,976 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:51:59,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 06:51:59,977 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-26 06:51:59,977 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:51:59,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1404687786, now seen corresponding path program 1 times [2023-08-26 06:51:59,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:51:59,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071368093] [2023-08-26 06:51:59,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:51:59,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:51:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:52:00,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:52:00,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:52:00,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071368093] [2023-08-26 06:52:00,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071368093] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:52:00,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:52:00,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:52:00,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679728822] [2023-08-26 06:52:00,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:52:00,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:52:00,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:52:00,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:52:00,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:52:00,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 208 [2023-08-26 06:52:00,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 38 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2023-08-26 06:52:00,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:52:00,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 208 [2023-08-26 06:52:00,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:52:00,088 INFO L124 PetriNetUnfolderBase]: 297/606 cut-off events. [2023-08-26 06:52:00,088 INFO L125 PetriNetUnfolderBase]: For 273/273 co-relation queries the response was YES. [2023-08-26 06:52:00,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1646 conditions, 606 events. 297/606 cut-off events. For 273/273 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2486 event pairs, 149 based on Foata normal form. 0/526 useless extension candidates. Maximal degree in co-relation 1639. Up to 554 conditions per place. [2023-08-26 06:52:00,092 INFO L140 encePairwiseOnDemand]: 203/208 looper letters, 43 selfloop transitions, 8 changer transitions 0/51 dead transitions. [2023-08-26 06:52:00,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 51 transitions, 298 flow [2023-08-26 06:52:00,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:52:00,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:52:00,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2023-08-26 06:52:00,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49198717948717946 [2023-08-26 06:52:00,093 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 307 transitions. [2023-08-26 06:52:00,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 307 transitions. [2023-08-26 06:52:00,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:52:00,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 307 transitions. [2023-08-26 06:52:00,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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) [2023-08-26 06:52:00,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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) [2023-08-26 06:52:00,096 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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) [2023-08-26 06:52:00,096 INFO L175 Difference]: Start difference. First operand has 35 places, 38 transitions, 150 flow. Second operand 3 states and 307 transitions. [2023-08-26 06:52:00,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 51 transitions, 298 flow [2023-08-26 06:52:00,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 51 transitions, 290 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:52:00,100 INFO L231 Difference]: Finished difference. Result has 37 places, 42 transitions, 196 flow [2023-08-26 06:52:00,100 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=37, PETRI_TRANSITIONS=42} [2023-08-26 06:52:00,101 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 5 predicate places. [2023-08-26 06:52:00,101 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 42 transitions, 196 flow [2023-08-26 06:52:00,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2023-08-26 06:52:00,101 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:52:00,101 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:52:00,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 06:52:00,102 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-26 06:52:00,102 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:52:00,102 INFO L85 PathProgramCache]: Analyzing trace with hash 327781357, now seen corresponding path program 1 times [2023-08-26 06:52:00,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:52:00,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884472320] [2023-08-26 06:52:00,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:52:00,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:52:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:52:00,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:52:00,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:52:00,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884472320] [2023-08-26 06:52:00,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884472320] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:52:00,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:52:00,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 06:52:00,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350016437] [2023-08-26 06:52:00,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:52:00,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:52:00,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:52:00,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:52:00,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:52:00,214 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 208 [2023-08-26 06:52:00,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 42 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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) [2023-08-26 06:52:00,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:52:00,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 208 [2023-08-26 06:52:00,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:52:00,256 INFO L124 PetriNetUnfolderBase]: 41/122 cut-off events. [2023-08-26 06:52:00,257 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2023-08-26 06:52:00,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 122 events. 41/122 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 330 event pairs, 6 based on Foata normal form. 8/126 useless extension candidates. Maximal degree in co-relation 322. Up to 74 conditions per place. [2023-08-26 06:52:00,258 INFO L140 encePairwiseOnDemand]: 204/208 looper letters, 19 selfloop transitions, 5 changer transitions 0/28 dead transitions. [2023-08-26 06:52:00,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 28 transitions, 150 flow [2023-08-26 06:52:00,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:52:00,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:52:00,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2023-08-26 06:52:00,259 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5160256410256411 [2023-08-26 06:52:00,259 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 322 transitions. [2023-08-26 06:52:00,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 322 transitions. [2023-08-26 06:52:00,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:52:00,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 322 transitions. [2023-08-26 06:52:00,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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) [2023-08-26 06:52:00,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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) [2023-08-26 06:52:00,262 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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) [2023-08-26 06:52:00,262 INFO L175 Difference]: Start difference. First operand has 37 places, 42 transitions, 196 flow. Second operand 3 states and 322 transitions. [2023-08-26 06:52:00,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 28 transitions, 150 flow [2023-08-26 06:52:00,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 118 flow, removed 6 selfloop flow, removed 7 redundant places. [2023-08-26 06:52:00,264 INFO L231 Difference]: Finished difference. Result has 28 places, 24 transitions, 68 flow [2023-08-26 06:52:00,264 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=28, PETRI_TRANSITIONS=24} [2023-08-26 06:52:00,265 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -4 predicate places. [2023-08-26 06:52:00,265 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 24 transitions, 68 flow [2023-08-26 06:52:00,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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) [2023-08-26 06:52:00,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:52:00,265 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:52:00,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 06:52:00,266 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-26 06:52:00,266 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:52:00,266 INFO L85 PathProgramCache]: Analyzing trace with hash 251937751, now seen corresponding path program 1 times [2023-08-26 06:52:00,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:52:00,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313201546] [2023-08-26 06:52:00,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:52:00,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:52:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:52:00,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 06:52:00,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:52:00,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313201546] [2023-08-26 06:52:00,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313201546] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:52:00,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:52:00,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 06:52:00,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65407224] [2023-08-26 06:52:00,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:52:00,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:52:00,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:52:00,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:52:00,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:52:00,305 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 208 [2023-08-26 06:52:00,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 24 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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) [2023-08-26 06:52:00,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:52:00,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 208 [2023-08-26 06:52:00,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:52:00,361 INFO L124 PetriNetUnfolderBase]: 53/168 cut-off events. [2023-08-26 06:52:00,362 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2023-08-26 06:52:00,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 168 events. 53/168 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 538 event pairs, 24 based on Foata normal form. 14/182 useless extension candidates. Maximal degree in co-relation 377. Up to 93 conditions per place. [2023-08-26 06:52:00,363 INFO L140 encePairwiseOnDemand]: 205/208 looper letters, 32 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2023-08-26 06:52:00,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 38 transitions, 182 flow [2023-08-26 06:52:00,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:52:00,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:52:00,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 339 transitions. [2023-08-26 06:52:00,364 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5432692307692307 [2023-08-26 06:52:00,364 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 339 transitions. [2023-08-26 06:52:00,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 339 transitions. [2023-08-26 06:52:00,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:52:00,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 339 transitions. [2023-08-26 06:52:00,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2023-08-26 06:52:00,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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) [2023-08-26 06:52:00,369 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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) [2023-08-26 06:52:00,369 INFO L175 Difference]: Start difference. First operand has 28 places, 24 transitions, 68 flow. Second operand 3 states and 339 transitions. [2023-08-26 06:52:00,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 38 transitions, 182 flow [2023-08-26 06:52:00,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 38 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:52:00,370 INFO L231 Difference]: Finished difference. Result has 30 places, 25 transitions, 76 flow [2023-08-26 06:52:00,371 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=30, PETRI_TRANSITIONS=25} [2023-08-26 06:52:00,371 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2023-08-26 06:52:00,371 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 25 transitions, 76 flow [2023-08-26 06:52:00,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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) [2023-08-26 06:52:00,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:52:00,373 INFO L208 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] [2023-08-26 06:52:00,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 06:52:00,373 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-26 06:52:00,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:52:00,375 INFO L85 PathProgramCache]: Analyzing trace with hash -897068791, now seen corresponding path program 1 times [2023-08-26 06:52:00,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:52:00,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080265156] [2023-08-26 06:52:00,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:52:00,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:52:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:52:00,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:52:00,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:52:00,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080265156] [2023-08-26 06:52:00,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080265156] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:52:00,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289498461] [2023-08-26 06:52:00,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:52:00,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:52:00,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:52:00,501 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 06:52:00,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-26 06:52:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:52:00,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 06:52:00,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:52:00,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:52:00,712 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 06:52:00,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:52:00,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289498461] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 06:52:00,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 06:52:00,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-08-26 06:52:00,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68341696] [2023-08-26 06:52:00,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 06:52:00,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 06:52:00,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:52:00,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 06:52:00,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-26 06:52:00,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 208 [2023-08-26 06:52:00,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 76 flow. Second operand has 7 states, 7 states have (on average 107.42857142857143) internal successors, (752), 7 states have internal predecessors, (752), 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) [2023-08-26 06:52:00,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:52:00,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 208 [2023-08-26 06:52:00,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:52:00,877 INFO L124 PetriNetUnfolderBase]: 81/298 cut-off events. [2023-08-26 06:52:00,877 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2023-08-26 06:52:00,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 690 conditions, 298 events. 81/298 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 957 event pairs, 17 based on Foata normal form. 42/340 useless extension candidates. Maximal degree in co-relation 683. Up to 65 conditions per place. [2023-08-26 06:52:00,879 INFO L140 encePairwiseOnDemand]: 204/208 looper letters, 66 selfloop transitions, 6 changer transitions 0/76 dead transitions. [2023-08-26 06:52:00,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 76 transitions, 376 flow [2023-08-26 06:52:00,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:52:00,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:52:00,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 682 transitions. [2023-08-26 06:52:00,881 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5464743589743589 [2023-08-26 06:52:00,881 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 682 transitions. [2023-08-26 06:52:00,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 682 transitions. [2023-08-26 06:52:00,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:52:00,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 682 transitions. [2023-08-26 06:52:00,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 113.66666666666667) internal successors, (682), 6 states have internal predecessors, (682), 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) [2023-08-26 06:52:00,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 208.0) internal successors, (1456), 7 states have internal predecessors, (1456), 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) [2023-08-26 06:52:00,888 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 208.0) internal successors, (1456), 7 states have internal predecessors, (1456), 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) [2023-08-26 06:52:00,888 INFO L175 Difference]: Start difference. First operand has 30 places, 25 transitions, 76 flow. Second operand 6 states and 682 transitions. [2023-08-26 06:52:00,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 76 transitions, 376 flow [2023-08-26 06:52:00,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 76 transitions, 374 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:52:00,891 INFO L231 Difference]: Finished difference. Result has 38 places, 28 transitions, 117 flow [2023-08-26 06:52:00,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=117, PETRI_PLACES=38, PETRI_TRANSITIONS=28} [2023-08-26 06:52:00,893 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 6 predicate places. [2023-08-26 06:52:00,894 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 28 transitions, 117 flow [2023-08-26 06:52:00,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 107.42857142857143) internal successors, (752), 7 states have internal predecessors, (752), 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) [2023-08-26 06:52:00,894 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:52:00,894 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:52:00,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-26 06:52:01,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:52:01,100 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-26 06:52:01,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:52:01,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1983532459, now seen corresponding path program 2 times [2023-08-26 06:52:01,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:52:01,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956891276] [2023-08-26 06:52:01,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:52:01,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:52:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:52:01,225 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-08-26 06:52:01,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:52:01,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956891276] [2023-08-26 06:52:01,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956891276] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:52:01,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132210908] [2023-08-26 06:52:01,227 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 06:52:01,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:52:01,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:52:01,229 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 06:52:01,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-26 06:52:01,339 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-26 06:52:01,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 06:52:01,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 06:52:01,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:52:01,413 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-08-26 06:52:01,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 06:52:01,469 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-08-26 06:52:01,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132210908] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 06:52:01,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 06:52:01,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-08-26 06:52:01,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505080286] [2023-08-26 06:52:01,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 06:52:01,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 06:52:01,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:52:01,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 06:52:01,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-26 06:52:01,473 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 208 [2023-08-26 06:52:01,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 28 transitions, 117 flow. Second operand has 7 states, 7 states have (on average 108.85714285714286) internal successors, (762), 7 states have internal predecessors, (762), 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) [2023-08-26 06:52:01,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:52:01,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 208 [2023-08-26 06:52:01,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:52:01,615 INFO L124 PetriNetUnfolderBase]: 122/524 cut-off events. [2023-08-26 06:52:01,615 INFO L125 PetriNetUnfolderBase]: For 566/566 co-relation queries the response was YES. [2023-08-26 06:52:01,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1399 conditions, 524 events. 122/524 cut-off events. For 566/566 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2067 event pairs, 24 based on Foata normal form. 69/593 useless extension candidates. Maximal degree in co-relation 1389. Up to 104 conditions per place. [2023-08-26 06:52:01,618 INFO L140 encePairwiseOnDemand]: 204/208 looper letters, 80 selfloop transitions, 6 changer transitions 0/90 dead transitions. [2023-08-26 06:52:01,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 90 transitions, 615 flow [2023-08-26 06:52:01,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:52:01,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:52:01,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 687 transitions. [2023-08-26 06:52:01,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5504807692307693 [2023-08-26 06:52:01,621 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 687 transitions. [2023-08-26 06:52:01,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 687 transitions. [2023-08-26 06:52:01,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:52:01,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 687 transitions. [2023-08-26 06:52:01,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 114.5) internal successors, (687), 6 states have internal predecessors, (687), 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) [2023-08-26 06:52:01,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 208.0) internal successors, (1456), 7 states have internal predecessors, (1456), 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) [2023-08-26 06:52:01,626 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 208.0) internal successors, (1456), 7 states have internal predecessors, (1456), 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) [2023-08-26 06:52:01,626 INFO L175 Difference]: Start difference. First operand has 38 places, 28 transitions, 117 flow. Second operand 6 states and 687 transitions. [2023-08-26 06:52:01,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 90 transitions, 615 flow [2023-08-26 06:52:01,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 90 transitions, 575 flow, removed 15 selfloop flow, removed 1 redundant places. [2023-08-26 06:52:01,631 INFO L231 Difference]: Finished difference. Result has 46 places, 31 transitions, 152 flow [2023-08-26 06:52:01,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=152, PETRI_PLACES=46, PETRI_TRANSITIONS=31} [2023-08-26 06:52:01,632 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 14 predicate places. [2023-08-26 06:52:01,632 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 31 transitions, 152 flow [2023-08-26 06:52:01,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.85714285714286) internal successors, (762), 7 states have internal predecessors, (762), 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) [2023-08-26 06:52:01,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:52:01,634 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:52:01,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-26 06:52:01,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-08-26 06:52:01,840 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-26 06:52:01,840 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:52:01,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1078049525, now seen corresponding path program 3 times [2023-08-26 06:52:01,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:52:01,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609104756] [2023-08-26 06:52:01,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:52:01,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:52:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:52:02,041 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-08-26 06:52:02,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:52:02,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609104756] [2023-08-26 06:52:02,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609104756] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:52:02,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456565936] [2023-08-26 06:52:02,041 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-26 06:52:02,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:52:02,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:52:02,043 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 06:52:02,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-26 06:52:02,202 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-08-26 06:52:02,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 06:52:02,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-26 06:52:02,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:52:02,291 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 52 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-26 06:52:02,291 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 06:52:02,393 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 52 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-26 06:52:02,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456565936] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 06:52:02,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 06:52:02,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2023-08-26 06:52:02,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766497370] [2023-08-26 06:52:02,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 06:52:02,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-26 06:52:02,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:52:02,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-26 06:52:02,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2023-08-26 06:52:02,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 208 [2023-08-26 06:52:02,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 31 transitions, 152 flow. Second operand has 17 states, 17 states have (on average 101.88235294117646) internal successors, (1732), 17 states have internal predecessors, (1732), 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) [2023-08-26 06:52:02,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:52:02,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 208 [2023-08-26 06:52:02,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:52:03,558 INFO L124 PetriNetUnfolderBase]: 253/1384 cut-off events. [2023-08-26 06:52:03,559 INFO L125 PetriNetUnfolderBase]: For 3869/3869 co-relation queries the response was YES. [2023-08-26 06:52:03,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3867 conditions, 1384 events. 253/1384 cut-off events. For 3869/3869 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 6894 event pairs, 8 based on Foata normal form. 255/1639 useless extension candidates. Maximal degree in co-relation 3853. Up to 159 conditions per place. [2023-08-26 06:52:03,568 INFO L140 encePairwiseOnDemand]: 201/208 looper letters, 596 selfloop transitions, 138 changer transitions 0/738 dead transitions. [2023-08-26 06:52:03,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 738 transitions, 4424 flow [2023-08-26 06:52:03,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-08-26 06:52:03,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2023-08-26 06:52:03,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 7213 transitions. [2023-08-26 06:52:03,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5175803673938002 [2023-08-26 06:52:03,586 INFO L72 ComplementDD]: Start complementDD. Operand 67 states and 7213 transitions. [2023-08-26 06:52:03,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 7213 transitions. [2023-08-26 06:52:03,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:52:03,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 67 states and 7213 transitions. [2023-08-26 06:52:03,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 68 states, 67 states have (on average 107.65671641791045) internal successors, (7213), 67 states have internal predecessors, (7213), 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) [2023-08-26 06:52:03,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 68 states, 68 states have (on average 208.0) internal successors, (14144), 68 states have internal predecessors, (14144), 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) [2023-08-26 06:52:03,633 INFO L81 ComplementDD]: Finished complementDD. Result has 68 states, 68 states have (on average 208.0) internal successors, (14144), 68 states have internal predecessors, (14144), 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) [2023-08-26 06:52:03,633 INFO L175 Difference]: Start difference. First operand has 46 places, 31 transitions, 152 flow. Second operand 67 states and 7213 transitions. [2023-08-26 06:52:03,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 738 transitions, 4424 flow [2023-08-26 06:52:03,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 738 transitions, 4304 flow, removed 54 selfloop flow, removed 1 redundant places. [2023-08-26 06:52:03,648 INFO L231 Difference]: Finished difference. Result has 157 places, 170 transitions, 1702 flow [2023-08-26 06:52:03,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=67, PETRI_FLOW=1702, PETRI_PLACES=157, PETRI_TRANSITIONS=170} [2023-08-26 06:52:03,649 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 125 predicate places. [2023-08-26 06:52:03,649 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 170 transitions, 1702 flow [2023-08-26 06:52:03,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 101.88235294117646) internal successors, (1732), 17 states have internal predecessors, (1732), 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) [2023-08-26 06:52:03,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:52:03,650 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:52:03,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-26 06:52:03,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:52:03,856 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-26 06:52:03,857 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:52:03,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1246292249, now seen corresponding path program 4 times [2023-08-26 06:52:03,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:52:03,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540390928] [2023-08-26 06:52:03,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:52:03,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:52:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:52:04,147 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 10 proven. 75 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-08-26 06:52:04,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:52:04,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540390928] [2023-08-26 06:52:04,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540390928] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:52:04,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635641452] [2023-08-26 06:52:04,147 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-26 06:52:04,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:52:04,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:52:04,149 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 06:52:04,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-26 06:52:04,321 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-26 06:52:04,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 06:52:04,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-26 06:52:04,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:52:04,483 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 10 proven. 75 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-08-26 06:52:04,483 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 06:52:04,697 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 10 proven. 75 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-08-26 06:52:04,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635641452] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 06:52:04,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 06:52:04,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2023-08-26 06:52:04,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906035982] [2023-08-26 06:52:04,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 06:52:04,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-26 06:52:04,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:52:04,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-26 06:52:04,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2023-08-26 06:52:04,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 208 [2023-08-26 06:52:04,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 170 transitions, 1702 flow. Second operand has 15 states, 15 states have (on average 107.26666666666667) internal successors, (1609), 15 states have internal predecessors, (1609), 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) [2023-08-26 06:52:04,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:52:04,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 208 [2023-08-26 06:52:04,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:52:05,438 INFO L124 PetriNetUnfolderBase]: 392/2556 cut-off events. [2023-08-26 06:52:05,438 INFO L125 PetriNetUnfolderBase]: For 113383/113383 co-relation queries the response was YES. [2023-08-26 06:52:05,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11019 conditions, 2556 events. 392/2556 cut-off events. For 113383/113383 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 15544 event pairs, 68 based on Foata normal form. 441/2997 useless extension candidates. Maximal degree in co-relation 10959. Up to 307 conditions per place. [2023-08-26 06:52:05,464 INFO L140 encePairwiseOnDemand]: 204/208 looper letters, 300 selfloop transitions, 144 changer transitions 0/448 dead transitions. [2023-08-26 06:52:05,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 448 transitions, 5550 flow [2023-08-26 06:52:05,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-26 06:52:05,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-26 06:52:05,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1606 transitions. [2023-08-26 06:52:05,468 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.551510989010989 [2023-08-26 06:52:05,468 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1606 transitions. [2023-08-26 06:52:05,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1606 transitions. [2023-08-26 06:52:05,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:52:05,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1606 transitions. [2023-08-26 06:52:05,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 114.71428571428571) internal successors, (1606), 14 states have internal predecessors, (1606), 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) [2023-08-26 06:52:05,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 208.0) internal successors, (3120), 15 states have internal predecessors, (3120), 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) [2023-08-26 06:52:05,476 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 208.0) internal successors, (3120), 15 states have internal predecessors, (3120), 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) [2023-08-26 06:52:05,476 INFO L175 Difference]: Start difference. First operand has 157 places, 170 transitions, 1702 flow. Second operand 14 states and 1606 transitions. [2023-08-26 06:52:05,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 448 transitions, 5550 flow [2023-08-26 06:52:05,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 448 transitions, 5406 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-26 06:52:05,680 INFO L231 Difference]: Finished difference. Result has 172 places, 237 transitions, 2683 flow [2023-08-26 06:52:05,681 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=1600, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2683, PETRI_PLACES=172, PETRI_TRANSITIONS=237} [2023-08-26 06:52:05,681 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 140 predicate places. [2023-08-26 06:52:05,682 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 237 transitions, 2683 flow [2023-08-26 06:52:05,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 107.26666666666667) internal successors, (1609), 15 states have internal predecessors, (1609), 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) [2023-08-26 06:52:05,682 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:52:05,683 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:52:05,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-26 06:52:05,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:52:05,889 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-26 06:52:05,889 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:52:05,889 INFO L85 PathProgramCache]: Analyzing trace with hash 60062681, now seen corresponding path program 5 times [2023-08-26 06:52:05,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:52:05,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714635079] [2023-08-26 06:52:05,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:52:05,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:52:05,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:52:06,330 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 0 proven. 474 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-08-26 06:52:06,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:52:06,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714635079] [2023-08-26 06:52:06,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714635079] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:52:06,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112383869] [2023-08-26 06:52:06,331 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-26 06:52:06,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:52:06,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:52:06,332 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 06:52:06,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-26 06:52:06,532 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2023-08-26 06:52:06,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 06:52:06,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-26 06:52:06,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:52:06,750 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 12 proven. 370 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-08-26 06:52:06,750 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 06:52:07,075 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 12 proven. 370 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-08-26 06:52:07,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112383869] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 06:52:07,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 06:52:07,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 35 [2023-08-26 06:52:07,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845009760] [2023-08-26 06:52:07,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 06:52:07,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-08-26 06:52:07,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:52:07,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-08-26 06:52:07,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=855, Unknown=0, NotChecked=0, Total=1190 [2023-08-26 06:52:07,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 208 [2023-08-26 06:52:07,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 237 transitions, 2683 flow. Second operand has 35 states, 35 states have (on average 101.68571428571428) internal successors, (3559), 35 states have internal predecessors, (3559), 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) [2023-08-26 06:52:07,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:52:07,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 208 [2023-08-26 06:52:07,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:52:18,806 INFO L124 PetriNetUnfolderBase]: 681/5219 cut-off events. [2023-08-26 06:52:18,806 INFO L125 PetriNetUnfolderBase]: For 715434/715434 co-relation queries the response was YES. [2023-08-26 06:52:18,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21363 conditions, 5219 events. 681/5219 cut-off events. For 715434/715434 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 36193 event pairs, 8 based on Foata normal form. 843/6062 useless extension candidates. Maximal degree in co-relation 21295. Up to 643 conditions per place. [2023-08-26 06:52:18,870 INFO L140 encePairwiseOnDemand]: 201/208 looper letters, 2636 selfloop transitions, 612 changer transitions 0/3252 dead transitions. [2023-08-26 06:52:18,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 3252 transitions, 25698 flow [2023-08-26 06:52:18,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 295 states. [2023-08-26 06:52:18,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2023-08-26 06:52:18,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 31719 transitions. [2023-08-26 06:52:18,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5169328552803129 [2023-08-26 06:52:18,910 INFO L72 ComplementDD]: Start complementDD. Operand 295 states and 31719 transitions. [2023-08-26 06:52:18,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 295 states and 31719 transitions. [2023-08-26 06:52:18,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:52:18,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 295 states and 31719 transitions. [2023-08-26 06:52:18,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 296 states, 295 states have (on average 107.52203389830508) internal successors, (31719), 295 states have internal predecessors, (31719), 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) [2023-08-26 06:52:19,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 296 states, 296 states have (on average 208.0) internal successors, (61568), 296 states have internal predecessors, (61568), 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) [2023-08-26 06:52:19,060 INFO L81 ComplementDD]: Finished complementDD. Result has 296 states, 296 states have (on average 208.0) internal successors, (61568), 296 states have internal predecessors, (61568), 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) [2023-08-26 06:52:19,060 INFO L175 Difference]: Start difference. First operand has 172 places, 237 transitions, 2683 flow. Second operand 295 states and 31719 transitions. [2023-08-26 06:52:19,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 3252 transitions, 25698 flow [2023-08-26 06:52:19,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 3252 transitions, 25478 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 06:52:19,496 INFO L231 Difference]: Finished difference. Result has 625 places, 661 transitions, 9631 flow [2023-08-26 06:52:19,497 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=2573, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=209, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=295, PETRI_FLOW=9631, PETRI_PLACES=625, PETRI_TRANSITIONS=661} [2023-08-26 06:52:19,498 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 593 predicate places. [2023-08-26 06:52:19,498 INFO L495 AbstractCegarLoop]: Abstraction has has 625 places, 661 transitions, 9631 flow [2023-08-26 06:52:19,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 101.68571428571428) internal successors, (3559), 35 states have internal predecessors, (3559), 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) [2023-08-26 06:52:19,499 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:52:19,499 INFO L208 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:52:19,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-26 06:52:19,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-08-26 06:52:19,708 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-26 06:52:19,708 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:52:19,710 INFO L85 PathProgramCache]: Analyzing trace with hash -869510509, now seen corresponding path program 6 times [2023-08-26 06:52:19,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:52:19,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419212657] [2023-08-26 06:52:19,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:52:19,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:52:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:52:20,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2099 backedges. 20 proven. 559 refuted. 0 times theorem prover too weak. 1520 trivial. 0 not checked. [2023-08-26 06:52:20,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:52:20,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419212657] [2023-08-26 06:52:20,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419212657] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:52:20,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934494965] [2023-08-26 06:52:20,336 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-26 06:52:20,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:52:20,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:52:20,337 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 06:52:20,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-26 06:52:20,912 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2023-08-26 06:52:20,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 06:52:20,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-26 06:52:20,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:52:21,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2099 backedges. 20 proven. 559 refuted. 0 times theorem prover too weak. 1520 trivial. 0 not checked. [2023-08-26 06:52:21,041 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 06:52:21,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2099 backedges. 20 proven. 559 refuted. 0 times theorem prover too weak. 1520 trivial. 0 not checked. [2023-08-26 06:52:21,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934494965] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 06:52:21,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 06:52:21,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 23 [2023-08-26 06:52:21,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377073321] [2023-08-26 06:52:21,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 06:52:21,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-08-26 06:52:21,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:52:21,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-08-26 06:52:21,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2023-08-26 06:52:21,328 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 208 [2023-08-26 06:52:21,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 625 places, 661 transitions, 9631 flow. Second operand has 23 states, 23 states have (on average 107.08695652173913) internal successors, (2463), 23 states have internal predecessors, (2463), 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) [2023-08-26 06:52:21,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:52:21,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 208 [2023-08-26 06:52:21,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:52:25,239 INFO L124 PetriNetUnfolderBase]: 890/7366 cut-off events. [2023-08-26 06:52:25,239 INFO L125 PetriNetUnfolderBase]: For 2614040/2614040 co-relation queries the response was YES. [2023-08-26 06:52:25,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49666 conditions, 7366 events. 890/7366 cut-off events. For 2614040/2614040 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 55588 event pairs, 128 based on Foata normal form. 861/8227 useless extension candidates. Maximal degree in co-relation 49434. Up to 921 conditions per place. [2023-08-26 06:52:25,483 INFO L140 encePairwiseOnDemand]: 204/208 looper letters, 715 selfloop transitions, 452 changer transitions 0/1171 dead transitions. [2023-08-26 06:52:25,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 646 places, 1171 transitions, 24515 flow [2023-08-26 06:52:25,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-26 06:52:25,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-26 06:52:25,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2526 transitions. [2023-08-26 06:52:25,486 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5520104895104895 [2023-08-26 06:52:25,487 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2526 transitions. [2023-08-26 06:52:25,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2526 transitions. [2023-08-26 06:52:25,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:52:25,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2526 transitions. [2023-08-26 06:52:25,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 114.81818181818181) internal successors, (2526), 22 states have internal predecessors, (2526), 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) [2023-08-26 06:52:25,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 208.0) internal successors, (4784), 23 states have internal predecessors, (4784), 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) [2023-08-26 06:52:25,496 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 208.0) internal successors, (4784), 23 states have internal predecessors, (4784), 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) [2023-08-26 06:52:25,496 INFO L175 Difference]: Start difference. First operand has 625 places, 661 transitions, 9631 flow. Second operand 22 states and 2526 transitions. [2023-08-26 06:52:25,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 646 places, 1171 transitions, 24515 flow [2023-08-26 06:52:30,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 586 places, 1171 transitions, 23447 flow, removed 165 selfloop flow, removed 60 redundant places. [2023-08-26 06:52:30,131 INFO L231 Difference]: Finished difference. Result has 594 places, 788 transitions, 11858 flow [2023-08-26 06:52:30,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=8821, PETRI_DIFFERENCE_MINUEND_PLACES=565, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=661, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=325, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=11858, PETRI_PLACES=594, PETRI_TRANSITIONS=788} [2023-08-26 06:52:30,133 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 562 predicate places. [2023-08-26 06:52:30,133 INFO L495 AbstractCegarLoop]: Abstraction has has 594 places, 788 transitions, 11858 flow [2023-08-26 06:52:30,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 107.08695652173913) internal successors, (2463), 23 states have internal predecessors, (2463), 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) [2023-08-26 06:52:30,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:52:30,134 INFO L208 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:52:30,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-26 06:52:30,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:52:30,339 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-26 06:52:30,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:52:30,339 INFO L85 PathProgramCache]: Analyzing trace with hash 2096681383, now seen corresponding path program 7 times [2023-08-26 06:52:30,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:52:30,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456848901] [2023-08-26 06:52:30,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:52:30,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:52:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:52:34,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2890 backedges. 0 proven. 2890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:52:34,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:52:34,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456848901] [2023-08-26 06:52:34,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456848901] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:52:34,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121163759] [2023-08-26 06:52:34,205 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-08-26 06:52:34,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:52:34,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:52:34,213 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 06:52:34,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-26 06:52:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:52:34,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 128 conjunts are in the unsatisfiable core [2023-08-26 06:52:34,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:52:35,245 INFO L134 CoverageAnalysis]: Checked inductivity of 2890 backedges. 0 proven. 2890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:52:35,245 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 06:52:36,044 INFO L134 CoverageAnalysis]: Checked inductivity of 2890 backedges. 0 proven. 2890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:52:36,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121163759] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 06:52:36,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 06:52:36,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61, 61] total 61 [2023-08-26 06:52:36,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764558658] [2023-08-26 06:52:36,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 06:52:36,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2023-08-26 06:52:36,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:52:36,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2023-08-26 06:52:36,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=3783, Unknown=0, NotChecked=0, Total=3906 [2023-08-26 06:52:36,053 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 208 [2023-08-26 06:52:36,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 788 transitions, 11858 flow. Second operand has 63 states, 63 states have (on average 104.61904761904762) internal successors, (6591), 63 states have internal predecessors, (6591), 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) [2023-08-26 06:52:36,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:52:36,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 208 [2023-08-26 06:52:36,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:53:50,695 INFO L124 PetriNetUnfolderBase]: 8758/41253 cut-off events. [2023-08-26 06:53:50,696 INFO L125 PetriNetUnfolderBase]: For 9420298/9420298 co-relation queries the response was YES. [2023-08-26 06:53:53,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461400 conditions, 41253 events. 8758/41253 cut-off events. For 9420298/9420298 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 465125 event pairs, 3324 based on Foata normal form. 1/41254 useless extension candidates. Maximal degree in co-relation 461160. Up to 8080 conditions per place. [2023-08-26 06:53:53,564 INFO L140 encePairwiseOnDemand]: 203/208 looper letters, 4557 selfloop transitions, 543 changer transitions 1/5105 dead transitions. [2023-08-26 06:53:53,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 886 places, 5105 transitions, 94606 flow [2023-08-26 06:53:53,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 293 states. [2023-08-26 06:53:53,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2023-08-26 06:53:53,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 32138 transitions. [2023-08-26 06:53:53,599 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5273365712785508 [2023-08-26 06:53:53,599 INFO L72 ComplementDD]: Start complementDD. Operand 293 states and 32138 transitions. [2023-08-26 06:53:53,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 293 states and 32138 transitions. [2023-08-26 06:53:53,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:53:53,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 293 states and 32138 transitions. [2023-08-26 06:53:53,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 294 states, 293 states have (on average 109.68600682593856) internal successors, (32138), 293 states have internal predecessors, (32138), 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) [2023-08-26 06:53:53,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 294 states, 294 states have (on average 208.0) internal successors, (61152), 294 states have internal predecessors, (61152), 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) [2023-08-26 06:53:53,731 INFO L81 ComplementDD]: Finished complementDD. Result has 294 states, 294 states have (on average 208.0) internal successors, (61152), 294 states have internal predecessors, (61152), 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) [2023-08-26 06:53:53,731 INFO L175 Difference]: Start difference. First operand has 594 places, 788 transitions, 11858 flow. Second operand 293 states and 32138 transitions. [2023-08-26 06:53:53,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 886 places, 5105 transitions, 94606 flow [2023-08-26 07:01:11,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 873 places, 5105 transitions, 94023 flow, removed 0 selfloop flow, removed 13 redundant places. [2023-08-26 07:01:11,493 INFO L231 Difference]: Finished difference. Result has 874 places, 1371 transitions, 13647 flow [2023-08-26 07:01:11,493 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=11302, PETRI_DIFFERENCE_MINUEND_PLACES=581, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=788, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=784, PETRI_DIFFERENCE_SUBTRAHEND_STATES=293, PETRI_FLOW=13647, PETRI_PLACES=874, PETRI_TRANSITIONS=1371} [2023-08-26 07:01:11,494 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 842 predicate places. [2023-08-26 07:01:11,494 INFO L495 AbstractCegarLoop]: Abstraction has has 874 places, 1371 transitions, 13647 flow [2023-08-26 07:01:11,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 104.61904761904762) internal successors, (6591), 63 states have internal predecessors, (6591), 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) [2023-08-26 07:01:11,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:01:11,495 INFO L208 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:01:11,501 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-08-26 07:01:11,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:01:11,696 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-26 07:01:11,696 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:01:11,696 INFO L85 PathProgramCache]: Analyzing trace with hash 773461799, now seen corresponding path program 8 times [2023-08-26 07:01:11,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:01:11,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148438974] [2023-08-26 07:01:11,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:01:11,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:01:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:01:15,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2890 backedges. 0 proven. 2890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:01:15,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:01:15,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148438974] [2023-08-26 07:01:15,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148438974] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 07:01:15,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832065383] [2023-08-26 07:01:15,740 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 07:01:15,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:01:15,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:01:15,748 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 07:01:15,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-26 07:01:16,084 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-26 07:01:16,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 07:01:16,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 128 conjunts are in the unsatisfiable core [2023-08-26 07:01:16,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:01:17,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2890 backedges. 0 proven. 2890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:01:17,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:01:17,932 INFO L134 CoverageAnalysis]: Checked inductivity of 2890 backedges. 0 proven. 2890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:01:17,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832065383] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 07:01:17,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 07:01:17,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61, 61] total 61 [2023-08-26 07:01:17,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485366951] [2023-08-26 07:01:17,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 07:01:17,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2023-08-26 07:01:17,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:01:17,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2023-08-26 07:01:17,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=3783, Unknown=0, NotChecked=0, Total=3906 [2023-08-26 07:01:17,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 208 [2023-08-26 07:01:17,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 874 places, 1371 transitions, 13647 flow. Second operand has 63 states, 63 states have (on average 104.61904761904762) internal successors, (6591), 63 states have internal predecessors, (6591), 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) [2023-08-26 07:01:17,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:01:17,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 208 [2023-08-26 07:01:17,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:03:05,945 INFO L124 PetriNetUnfolderBase]: 21300/94331 cut-off events. [2023-08-26 07:03:05,945 INFO L125 PetriNetUnfolderBase]: For 21603628/21603628 co-relation queries the response was YES. [2023-08-26 07:03:12,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1141387 conditions, 94331 events. 21300/94331 cut-off events. For 21603628/21603628 co-relation queries the response was YES. Maximal size of possible extension queue 1223. Compared 1263984 event pairs, 9358 based on Foata normal form. 1/94332 useless extension candidates. Maximal degree in co-relation 1141145. Up to 29026 conditions per place. [2023-08-26 07:03:12,876 INFO L140 encePairwiseOnDemand]: 203/208 looper letters, 5097 selfloop transitions, 983 changer transitions 1/6085 dead transitions. [2023-08-26 07:03:12,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1173 places, 6085 transitions, 101108 flow [2023-08-26 07:03:12,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 300 states. [2023-08-26 07:03:12,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2023-08-26 07:03:12,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 32900 transitions. [2023-08-26 07:03:12,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5272435897435898 [2023-08-26 07:03:12,907 INFO L72 ComplementDD]: Start complementDD. Operand 300 states and 32900 transitions. [2023-08-26 07:03:12,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 300 states and 32900 transitions. [2023-08-26 07:03:12,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:03:12,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 300 states and 32900 transitions. [2023-08-26 07:03:12,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 301 states, 300 states have (on average 109.66666666666667) internal successors, (32900), 300 states have internal predecessors, (32900), 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) [2023-08-26 07:03:13,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 301 states, 301 states have (on average 208.0) internal successors, (62608), 301 states have internal predecessors, (62608), 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) [2023-08-26 07:03:13,014 INFO L81 ComplementDD]: Finished complementDD. Result has 301 states, 301 states have (on average 208.0) internal successors, (62608), 301 states have internal predecessors, (62608), 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) [2023-08-26 07:03:13,014 INFO L175 Difference]: Start difference. First operand has 874 places, 1371 transitions, 13647 flow. Second operand 300 states and 32900 transitions. [2023-08-26 07:03:13,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1173 places, 6085 transitions, 101108 flow Received shutdown request... [2023-08-26 07:04:41,097 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-26 07:04:41,097 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-26 07:04:42,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 [2023-08-26 07:04:42,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown