/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread/bigshot_s2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 07:45:19,899 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 07:45:19,959 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 07:45:19,971 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 07:45:19,971 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 07:45:20,003 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 07:45:20,004 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 07:45:20,004 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 07:45:20,004 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 07:45:20,007 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 07:45:20,008 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 07:45:20,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 07:45:20,008 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 07:45:20,009 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 07:45:20,009 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 07:45:20,009 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 07:45:20,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 07:45:20,010 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 07:45:20,010 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 07:45:20,010 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 07:45:20,010 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 07:45:20,011 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 07:45:20,011 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 07:45:20,011 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 07:45:20,012 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 07:45:20,012 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 07:45:20,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 07:45:20,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:45:20,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 07:45:20,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 07:45:20,013 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 07:45:20,013 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 07:45:20,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 07:45:20,014 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 07:45:20,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 07:45:20,014 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 07:45:20,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 07:45:20,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 07:45:20,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 07:45:20,316 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 07:45:20,317 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 07:45:20,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/bigshot_s2.i [2023-08-25 07:45:21,309 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 07:45:21,521 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 07:45:21,522 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s2.i [2023-08-25 07:45:21,546 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b305a26a3/eb23fc65fca44959964a832c360d6444/FLAGc67d1f694 [2023-08-25 07:45:21,560 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b305a26a3/eb23fc65fca44959964a832c360d6444 [2023-08-25 07:45:21,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 07:45:21,563 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 07:45:21,565 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 07:45:21,565 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 07:45:21,567 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 07:45:21,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:45:21" (1/1) ... [2023-08-25 07:45:21,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f247079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:21, skipping insertion in model container [2023-08-25 07:45:21,568 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:45:21" (1/1) ... [2023-08-25 07:45:21,617 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 07:45:21,997 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:45:22,006 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 07:45:22,020 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [274] [2023-08-25 07:45:22,021 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [274] [2023-08-25 07:45:22,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:45:22,081 INFO L206 MainTranslator]: Completed translation [2023-08-25 07:45:22,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22 WrapperNode [2023-08-25 07:45:22,081 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 07:45:22,082 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 07:45:22,082 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 07:45:22,082 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 07:45:22,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,100 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,115 INFO L138 Inliner]: procedures = 323, calls = 34, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 92 [2023-08-25 07:45:22,116 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 07:45:22,116 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 07:45:22,116 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 07:45:22,116 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 07:45:22,122 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,124 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,130 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,132 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,133 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 07:45:22,135 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 07:45:22,135 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 07:45:22,135 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 07:45:22,136 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (1/1) ... [2023-08-25 07:45:22,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:45:22,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:45:22,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 07:45:22,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 07:45:22,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 07:45:22,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 07:45:22,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-08-25 07:45:22,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 07:45:22,204 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 07:45:22,204 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 07:45:22,204 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 07:45:22,204 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 07:45:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 07:45:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 07:45:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 07:45:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 07:45:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 07:45:22,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 07:45:22,206 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 07:45:22,354 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 07:45:22,369 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 07:45:22,561 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 07:45:22,565 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 07:45:22,565 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-25 07:45:22,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:45:22 BoogieIcfgContainer [2023-08-25 07:45:22,566 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 07:45:22,568 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 07:45:22,568 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 07:45:22,570 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 07:45:22,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:45:21" (1/3) ... [2023-08-25 07:45:22,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2765522f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:45:22, skipping insertion in model container [2023-08-25 07:45:22,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:45:22" (2/3) ... [2023-08-25 07:45:22,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2765522f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:45:22, skipping insertion in model container [2023-08-25 07:45:22,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:45:22" (3/3) ... [2023-08-25 07:45:22,571 INFO L112 eAbstractionObserver]: Analyzing ICFG bigshot_s2.i [2023-08-25 07:45:22,581 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 07:45:22,581 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-25 07:45:22,581 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 07:45:22,627 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 07:45:22,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 115 transitions, 246 flow [2023-08-25 07:45:22,691 INFO L124 PetriNetUnfolderBase]: 5/113 cut-off events. [2023-08-25 07:45:22,691 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 07:45:22,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 113 events. 5/113 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 94 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2023-08-25 07:45:22,694 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 115 transitions, 246 flow [2023-08-25 07:45:22,696 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 100 transitions, 212 flow [2023-08-25 07:45:22,698 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 07:45:22,703 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 100 transitions, 212 flow [2023-08-25 07:45:22,705 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 100 transitions, 212 flow [2023-08-25 07:45:22,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 212 flow [2023-08-25 07:45:22,720 INFO L124 PetriNetUnfolderBase]: 3/100 cut-off events. [2023-08-25 07:45:22,720 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 07:45:22,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 100 events. 3/100 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2023-08-25 07:45:22,721 INFO L119 LiptonReduction]: Number of co-enabled transitions 630 [2023-08-25 07:45:25,302 INFO L134 LiptonReduction]: Checked pairs total: 635 [2023-08-25 07:45:25,302 INFO L136 LiptonReduction]: Total number of compositions: 103 [2023-08-25 07:45:25,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 07:45:25,329 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;@4f0fd23f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 07:45:25,329 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-08-25 07:45:25,334 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 07:45:25,334 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 07:45:25,334 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 07:45:25,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:45:25,335 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 07:45:25,336 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-25 07:45:25,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:45:25,340 INFO L85 PathProgramCache]: Analyzing trace with hash 416772, now seen corresponding path program 1 times [2023-08-25 07:45:25,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:45:25,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219207413] [2023-08-25 07:45:25,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:45:25,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:45:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:45:25,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:45:25,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:45:25,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219207413] [2023-08-25 07:45:25,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219207413] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:45:25,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:45:25,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 07:45:25,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693830356] [2023-08-25 07:45:25,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:45:25,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 07:45:25,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:45:25,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 07:45:25,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 07:45:25,543 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 218 [2023-08-25 07:45:25,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 54 flow. Second operand has 2 states, 2 states have (on average 108.5) internal successors, (217), 2 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:25,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:45:25,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 218 [2023-08-25 07:45:25,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:45:25,580 INFO L124 PetriNetUnfolderBase]: 7/22 cut-off events. [2023-08-25 07:45:25,580 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 07:45:25,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 22 events. 7/22 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 17 event pairs, 3 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 33. Up to 23 conditions per place. [2023-08-25 07:45:25,582 INFO L140 encePairwiseOnDemand]: 211/218 looper letters, 14 selfloop transitions, 0 changer transitions 0/14 dead transitions. [2023-08-25 07:45:25,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 14 transitions, 68 flow [2023-08-25 07:45:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 07:45:25,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 07:45:25,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 235 transitions. [2023-08-25 07:45:25,594 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5389908256880734 [2023-08-25 07:45:25,595 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 235 transitions. [2023-08-25 07:45:25,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 235 transitions. [2023-08-25 07:45:25,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:45:25,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 235 transitions. [2023-08-25 07:45:25,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 117.5) internal successors, (235), 2 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:25,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:25,606 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:25,607 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 54 flow. Second operand 2 states and 235 transitions. [2023-08-25 07:45:25,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 14 transitions, 68 flow [2023-08-25 07:45:25,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 14 transitions, 60 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 07:45:25,610 INFO L231 Difference]: Finished difference. Result has 16 places, 14 transitions, 32 flow [2023-08-25 07:45:25,611 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=32, PETRI_PLACES=16, PETRI_TRANSITIONS=14} [2023-08-25 07:45:25,615 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -10 predicate places. [2023-08-25 07:45:25,615 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 14 transitions, 32 flow [2023-08-25 07:45:25,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 108.5) internal successors, (217), 2 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:25,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:45:25,615 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:45:25,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 07:45:25,616 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-25 07:45:25,616 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:45:25,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1409880018, now seen corresponding path program 1 times [2023-08-25 07:45:25,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:45:25,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850437700] [2023-08-25 07:45:25,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:45:25,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:45:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:45:25,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:45:25,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:45:25,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850437700] [2023-08-25 07:45:25,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850437700] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:45:25,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:45:25,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 07:45:25,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341005649] [2023-08-25 07:45:25,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:45:25,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:45:25,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:45:25,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:45:25,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:45:25,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 218 [2023-08-25 07:45:25,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 14 transitions, 32 flow. Second operand has 3 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) [2023-08-25 07:45:25,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:45:25,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 218 [2023-08-25 07:45:25,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:45:25,749 INFO L124 PetriNetUnfolderBase]: 5/20 cut-off events. [2023-08-25 07:45:25,749 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 07:45:25,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 20 events. 5/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 2 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 42. Up to 17 conditions per place. [2023-08-25 07:45:25,750 INFO L140 encePairwiseOnDemand]: 216/218 looper letters, 13 selfloop transitions, 1 changer transitions 0/14 dead transitions. [2023-08-25 07:45:25,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 14 transitions, 60 flow [2023-08-25 07:45:25,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:45:25,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:45:25,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 309 transitions. [2023-08-25 07:45:25,752 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4724770642201835 [2023-08-25 07:45:25,752 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 309 transitions. [2023-08-25 07:45:25,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 309 transitions. [2023-08-25 07:45:25,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:45:25,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 309 transitions. [2023-08-25 07:45:25,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:25,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:25,759 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:25,759 INFO L175 Difference]: Start difference. First operand has 16 places, 14 transitions, 32 flow. Second operand 3 states and 309 transitions. [2023-08-25 07:45:25,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 14 transitions, 60 flow [2023-08-25 07:45:25,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 14 transitions, 60 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 07:45:25,759 INFO L231 Difference]: Finished difference. Result has 18 places, 13 transitions, 32 flow [2023-08-25 07:45:25,760 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=32, PETRI_PLACES=18, PETRI_TRANSITIONS=13} [2023-08-25 07:45:25,760 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -8 predicate places. [2023-08-25 07:45:25,760 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 13 transitions, 32 flow [2023-08-25 07:45:25,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2023-08-25 07:45:25,760 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:45:25,761 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:45:25,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 07:45:25,761 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-25 07:45:25,761 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:45:25,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1829032538, now seen corresponding path program 1 times [2023-08-25 07:45:25,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:45:25,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650153952] [2023-08-25 07:45:25,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:45:25,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:45:25,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:45:26,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:45:26,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:45:26,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650153952] [2023-08-25 07:45:26,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650153952] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:45:26,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:45:26,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 07:45:26,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931247605] [2023-08-25 07:45:26,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:45:26,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 07:45:26,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:45:26,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 07:45:26,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-25 07:45:26,092 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 218 [2023-08-25 07:45:26,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 13 transitions, 32 flow. Second operand has 6 states, 6 states have (on average 69.0) internal successors, (414), 6 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:26,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:45:26,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 218 [2023-08-25 07:45:26,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:45:26,147 INFO L124 PetriNetUnfolderBase]: 9/28 cut-off events. [2023-08-25 07:45:26,147 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 07:45:26,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 28 events. 9/28 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 24 event pairs, 2 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 60. Up to 13 conditions per place. [2023-08-25 07:45:26,148 INFO L140 encePairwiseOnDemand]: 214/218 looper letters, 13 selfloop transitions, 5 changer transitions 0/18 dead transitions. [2023-08-25 07:45:26,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 18 transitions, 78 flow [2023-08-25 07:45:26,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 07:45:26,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 07:45:26,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 287 transitions. [2023-08-25 07:45:26,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3291284403669725 [2023-08-25 07:45:26,150 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 287 transitions. [2023-08-25 07:45:26,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 287 transitions. [2023-08-25 07:45:26,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:45:26,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 287 transitions. [2023-08-25 07:45:26,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:26,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:26,153 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:26,153 INFO L175 Difference]: Start difference. First operand has 18 places, 13 transitions, 32 flow. Second operand 4 states and 287 transitions. [2023-08-25 07:45:26,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 18 transitions, 78 flow [2023-08-25 07:45:26,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 18 transitions, 77 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 07:45:26,154 INFO L231 Difference]: Finished difference. Result has 22 places, 16 transitions, 60 flow [2023-08-25 07:45:26,154 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=60, PETRI_PLACES=22, PETRI_TRANSITIONS=16} [2023-08-25 07:45:26,155 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -4 predicate places. [2023-08-25 07:45:26,156 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 60 flow [2023-08-25 07:45:26,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.0) internal successors, (414), 6 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:26,156 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:45:26,156 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:45:26,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 07:45:26,159 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-25 07:45:26,160 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:45:26,160 INFO L85 PathProgramCache]: Analyzing trace with hash -866233149, now seen corresponding path program 1 times [2023-08-25 07:45:26,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:45:26,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081249927] [2023-08-25 07:45:26,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:45:26,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:45:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:45:26,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:45:26,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:45:26,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081249927] [2023-08-25 07:45:26,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081249927] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 07:45:26,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756706587] [2023-08-25 07:45:26,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:45:26,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 07:45:26,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:45:26,517 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 07:45:26,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 07:45:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:45:26,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 44 conjunts are in the unsatisfiable core [2023-08-25 07:45:26,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 07:45:26,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 07:45:26,707 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 07:45:26,745 INFO L322 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2023-08-25 07:45:26,745 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2023-08-25 07:45:26,794 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 07:45:26,867 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-08-25 07:45:26,867 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2023-08-25 07:45:26,905 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 07:45:26,905 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 07:45:26,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:45:26,931 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 07:45:27,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:45:27,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756706587] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 07:45:27,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 07:45:27,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 17 [2023-08-25 07:45:27,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328831551] [2023-08-25 07:45:27,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 07:45:27,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-08-25 07:45:27,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:45:27,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-08-25 07:45:27,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2023-08-25 07:45:27,092 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 218 [2023-08-25 07:45:27,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 60 flow. Second operand has 18 states, 18 states have (on average 56.0) internal successors, (1008), 18 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:27,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:45:27,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 218 [2023-08-25 07:45:27,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:45:27,479 INFO L124 PetriNetUnfolderBase]: 14/45 cut-off events. [2023-08-25 07:45:27,479 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-08-25 07:45:27,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 45 events. 14/45 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 62 event pairs, 1 based on Foata normal form. 2/47 useless extension candidates. Maximal degree in co-relation 131. Up to 14 conditions per place. [2023-08-25 07:45:27,480 INFO L140 encePairwiseOnDemand]: 213/218 looper letters, 17 selfloop transitions, 8 changer transitions 5/30 dead transitions. [2023-08-25 07:45:27,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 30 transitions, 165 flow [2023-08-25 07:45:27,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 07:45:27,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 07:45:27,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 519 transitions. [2023-08-25 07:45:27,482 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.26452599388379205 [2023-08-25 07:45:27,482 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 519 transitions. [2023-08-25 07:45:27,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 519 transitions. [2023-08-25 07:45:27,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:45:27,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 519 transitions. [2023-08-25 07:45:27,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 57.666666666666664) internal successors, (519), 9 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:27,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 218.0) internal successors, (2180), 10 states have internal predecessors, (2180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:27,486 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 218.0) internal successors, (2180), 10 states have internal predecessors, (2180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:27,487 INFO L175 Difference]: Start difference. First operand has 22 places, 16 transitions, 60 flow. Second operand 9 states and 519 transitions. [2023-08-25 07:45:27,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 30 transitions, 165 flow [2023-08-25 07:45:27,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 163 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-25 07:45:27,488 INFO L231 Difference]: Finished difference. Result has 34 places, 19 transitions, 104 flow [2023-08-25 07:45:27,488 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=104, PETRI_PLACES=34, PETRI_TRANSITIONS=19} [2023-08-25 07:45:27,489 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2023-08-25 07:45:27,489 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 19 transitions, 104 flow [2023-08-25 07:45:27,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 56.0) internal successors, (1008), 18 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:27,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:45:27,491 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:45:27,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-25 07:45:27,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 07:45:27,698 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-25 07:45:27,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:45:27,699 INFO L85 PathProgramCache]: Analyzing trace with hash 2137327274, now seen corresponding path program 2 times [2023-08-25 07:45:27,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:45:27,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103988106] [2023-08-25 07:45:27,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:45:27,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:45:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:45:28,405 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:45:28,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:45:28,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103988106] [2023-08-25 07:45:28,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103988106] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 07:45:28,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874591568] [2023-08-25 07:45:28,406 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 07:45:28,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 07:45:28,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:45:28,408 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 07:45:28,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 07:45:28,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 07:45:28,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 07:45:28,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 38 conjunts are in the unsatisfiable core [2023-08-25 07:45:28,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 07:45:28,552 INFO L322 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2023-08-25 07:45:28,552 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2023-08-25 07:45:28,559 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 07:45:28,623 INFO L322 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-08-25 07:45:28,624 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-08-25 07:45:28,661 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 07:45:28,718 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 07:45:28,768 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 07:45:28,834 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 07:45:28,862 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 07:45:28,888 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:45:28,888 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 07:45:28,910 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_192 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_192) |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset14#1| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.offset| 1)))) is different from false [2023-08-25 07:45:28,914 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_192 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_192) |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset14#1| 2 |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.offset|)))) is different from false [2023-08-25 07:45:28,920 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_192 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_192) |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset14#1| 3 |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.offset|)))) is different from false [2023-08-25 07:45:29,059 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 9 not checked. [2023-08-25 07:45:29,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874591568] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 07:45:29,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 07:45:29,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 26 [2023-08-25 07:45:29,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014837244] [2023-08-25 07:45:29,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 07:45:29,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-08-25 07:45:29,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:45:29,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-08-25 07:45:29,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=484, Unknown=5, NotChecked=138, Total=702 [2023-08-25 07:45:29,063 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 218 [2023-08-25 07:45:29,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 19 transitions, 104 flow. Second operand has 27 states, 27 states have (on average 55.629629629629626) internal successors, (1502), 27 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:29,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:45:29,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 218 [2023-08-25 07:45:29,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:45:29,724 INFO L124 PetriNetUnfolderBase]: 16/49 cut-off events. [2023-08-25 07:45:29,724 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2023-08-25 07:45:29,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 49 events. 16/49 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 67 event pairs, 1 based on Foata normal form. 3/52 useless extension candidates. Maximal degree in co-relation 188. Up to 17 conditions per place. [2023-08-25 07:45:29,725 INFO L140 encePairwiseOnDemand]: 213/218 looper letters, 17 selfloop transitions, 14 changer transitions 4/35 dead transitions. [2023-08-25 07:45:29,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 35 transitions, 251 flow [2023-08-25 07:45:29,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 07:45:29,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 07:45:29,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 685 transitions. [2023-08-25 07:45:29,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.26185015290519875 [2023-08-25 07:45:29,727 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 685 transitions. [2023-08-25 07:45:29,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 685 transitions. [2023-08-25 07:45:29,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:45:29,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 685 transitions. [2023-08-25 07:45:29,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 57.083333333333336) internal successors, (685), 12 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:29,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 218.0) internal successors, (2834), 13 states have internal predecessors, (2834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:29,731 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 218.0) internal successors, (2834), 13 states have internal predecessors, (2834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:29,731 INFO L175 Difference]: Start difference. First operand has 34 places, 19 transitions, 104 flow. Second operand 12 states and 685 transitions. [2023-08-25 07:45:29,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 35 transitions, 251 flow [2023-08-25 07:45:29,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 35 transitions, 215 flow, removed 13 selfloop flow, removed 5 redundant places. [2023-08-25 07:45:29,733 INFO L231 Difference]: Finished difference. Result has 40 places, 25 transitions, 145 flow [2023-08-25 07:45:29,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=145, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2023-08-25 07:45:29,734 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 14 predicate places. [2023-08-25 07:45:29,734 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 25 transitions, 145 flow [2023-08-25 07:45:29,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 55.629629629629626) internal successors, (1502), 27 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:29,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:45:29,734 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:45:29,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 07:45:29,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 07:45:29,935 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-25 07:45:29,936 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:45:29,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1831836735, now seen corresponding path program 3 times [2023-08-25 07:45:29,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:45:29,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492003749] [2023-08-25 07:45:29,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:45:29,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:45:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:45:30,386 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:45:30,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:45:30,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492003749] [2023-08-25 07:45:30,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492003749] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 07:45:30,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263531276] [2023-08-25 07:45:30,387 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 07:45:30,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 07:45:30,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:45:30,388 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) [2023-08-25 07:45:30,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-25 07:45:30,510 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-08-25 07:45:30,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 07:45:30,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 49 conjunts are in the unsatisfiable core [2023-08-25 07:45:30,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 07:45:30,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 07:45:30,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 07:45:30,571 INFO L322 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2023-08-25 07:45:30,571 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 39 treesize of output 61 [2023-08-25 07:45:30,583 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 07:45:30,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 07:45:30,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 07:45:30,697 INFO L322 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-08-25 07:45:30,697 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 07:45:30,756 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 07:45:30,857 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 07:45:30,896 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 07:45:30,936 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 07:45:30,968 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 07:45:31,009 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 07:45:31,036 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:45:31,036 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 07:45:31,092 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_272 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_272) |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset14#1| 2 |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.offset|)))) is different from false [2023-08-25 07:45:31,221 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_272 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_272) |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset14#1| 5 |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.offset|)))) is different from false [2023-08-25 07:45:31,358 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 9 not checked. [2023-08-25 07:45:31,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263531276] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 07:45:31,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 07:45:31,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2023-08-25 07:45:31,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6780068] [2023-08-25 07:45:31,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 07:45:31,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-08-25 07:45:31,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:45:31,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-08-25 07:45:31,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=670, Unknown=15, NotChecked=106, Total=870 [2023-08-25 07:45:31,361 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 218 [2023-08-25 07:45:31,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 25 transitions, 145 flow. Second operand has 30 states, 30 states have (on average 54.56666666666667) internal successors, (1637), 30 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:31,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:45:31,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 218 [2023-08-25 07:45:31,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:45:32,087 INFO L124 PetriNetUnfolderBase]: 14/46 cut-off events. [2023-08-25 07:45:32,088 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-08-25 07:45:32,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 46 events. 14/46 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 1 based on Foata normal form. 3/49 useless extension candidates. Maximal degree in co-relation 178. Up to 13 conditions per place. [2023-08-25 07:45:32,088 INFO L140 encePairwiseOnDemand]: 213/218 looper letters, 18 selfloop transitions, 14 changer transitions 0/32 dead transitions. [2023-08-25 07:45:32,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 32 transitions, 231 flow [2023-08-25 07:45:32,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 07:45:32,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 07:45:32,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 614 transitions. [2023-08-25 07:45:32,090 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.25604670558799 [2023-08-25 07:45:32,090 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 614 transitions. [2023-08-25 07:45:32,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 614 transitions. [2023-08-25 07:45:32,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:45:32,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 614 transitions. [2023-08-25 07:45:32,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 55.81818181818182) internal successors, (614), 11 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:32,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 218.0) internal successors, (2616), 12 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:32,094 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 218.0) internal successors, (2616), 12 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:32,094 INFO L175 Difference]: Start difference. First operand has 40 places, 25 transitions, 145 flow. Second operand 11 states and 614 transitions. [2023-08-25 07:45:32,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 32 transitions, 231 flow [2023-08-25 07:45:32,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 32 transitions, 164 flow, removed 17 selfloop flow, removed 12 redundant places. [2023-08-25 07:45:32,095 INFO L231 Difference]: Finished difference. Result has 39 places, 25 transitions, 108 flow [2023-08-25 07:45:32,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=108, PETRI_PLACES=39, PETRI_TRANSITIONS=25} [2023-08-25 07:45:32,096 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 13 predicate places. [2023-08-25 07:45:32,096 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 25 transitions, 108 flow [2023-08-25 07:45:32,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 54.56666666666667) internal successors, (1637), 30 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:45:32,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:45:32,097 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:45:32,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-25 07:45:32,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 07:45:32,306 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-25 07:45:32,306 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:45:32,306 INFO L85 PathProgramCache]: Analyzing trace with hash 951564618, now seen corresponding path program 4 times [2023-08-25 07:45:32,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:45:32,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826667772] [2023-08-25 07:45:32,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:45:32,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:45:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:45:32,796 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:45:32,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:45:32,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826667772] [2023-08-25 07:45:32,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826667772] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 07:45:32,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428882460] [2023-08-25 07:45:32,796 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 07:45:32,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 07:45:32,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:45:32,797 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) [2023-08-25 07:45:32,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-25 07:45:32,940 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 07:45:32,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 07:45:32,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 55 conjunts are in the unsatisfiable core [2023-08-25 07:45:32,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 07:45:32,960 INFO L322 Elim1Store]: treesize reduction 13, result has 48.0 percent of original size [2023-08-25 07:45:32,960 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 34 [2023-08-25 07:45:32,964 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 07:45:33,027 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 07:45:33,114 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-08-25 07:45:33,115 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2023-08-25 07:45:33,162 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 07:45:33,162 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 07:45:33,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 07:45:33,209 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 07:45:33,209 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 07:45:33,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 07:45:33,281 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 07:45:33,281 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 07:45:33,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 07:45:33,323 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 07:45:33,323 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 07:45:33,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 07:45:33,364 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 07:45:33,364 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 07:45:33,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 07:45:33,404 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 07:45:33,404 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 07:45:33,429 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:45:33,429 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 07:47:26,220 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 6 refuted. 10 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:47:26,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428882460] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 07:47:26,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 07:47:26,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 10] total 32 [2023-08-25 07:47:26,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111912021] [2023-08-25 07:47:26,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 07:47:26,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-08-25 07:47:26,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:47:26,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-08-25 07:47:26,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=849, Unknown=48, NotChecked=0, Total=1056 [2023-08-25 07:47:26,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 218 [2023-08-25 07:47:26,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 25 transitions, 108 flow. Second operand has 33 states, 33 states have (on average 55.57575757575758) internal successors, (1834), 33 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:47:26,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:47:26,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 218 [2023-08-25 07:47:26,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:47:27,036 INFO L124 PetriNetUnfolderBase]: 12/43 cut-off events. [2023-08-25 07:47:27,036 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-25 07:47:27,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 43 events. 12/43 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 1 based on Foata normal form. 1/42 useless extension candidates. Maximal degree in co-relation 138. Up to 13 conditions per place. [2023-08-25 07:47:27,037 INFO L140 encePairwiseOnDemand]: 213/218 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2023-08-25 07:47:27,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 30 transitions, 187 flow [2023-08-25 07:47:27,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 07:47:27,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 07:47:27,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 623 transitions. [2023-08-25 07:47:27,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2597998331943286 [2023-08-25 07:47:27,040 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 623 transitions. [2023-08-25 07:47:27,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 623 transitions. [2023-08-25 07:47:27,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:47:27,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 623 transitions. [2023-08-25 07:47:27,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 56.63636363636363) internal successors, (623), 11 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:47:27,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 218.0) internal successors, (2616), 12 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:47:27,053 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 218.0) internal successors, (2616), 12 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:47:27,053 INFO L175 Difference]: Start difference. First operand has 39 places, 25 transitions, 108 flow. Second operand 11 states and 623 transitions. [2023-08-25 07:47:27,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 30 transitions, 187 flow [2023-08-25 07:47:27,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 30 transitions, 160 flow, removed 2 selfloop flow, removed 9 redundant places. [2023-08-25 07:47:27,054 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2023-08-25 07:47:27,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2023-08-25 07:47:27,055 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 13 predicate places. [2023-08-25 07:47:27,055 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2023-08-25 07:47:27,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 55.57575757575758) internal successors, (1834), 33 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:47:27,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2023-08-25 07:47:27,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2023-08-25 07:47:27,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2023-08-25 07:47:27,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2023-08-25 07:47:27,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2023-08-25 07:47:27,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2023-08-25 07:47:27,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2023-08-25 07:47:27,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONASSERT (5 of 13 remaining) [2023-08-25 07:47:27,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2023-08-25 07:47:27,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2023-08-25 07:47:27,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2023-08-25 07:47:27,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2023-08-25 07:47:27,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2023-08-25 07:47:27,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-25 07:47:27,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 07:47:27,268 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2023-08-25 07:47:27,272 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 07:47:27,272 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 07:47:27,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:47:27 BasicIcfg [2023-08-25 07:47:27,275 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 07:47:27,275 INFO L158 Benchmark]: Toolchain (without parser) took 125712.10ms. Allocated memory was 354.4MB in the beginning and 570.4MB in the end (delta: 216.0MB). Free memory was 328.2MB in the beginning and 220.7MB in the end (delta: 107.5MB). Peak memory consumption was 325.1MB. Max. memory is 16.0GB. [2023-08-25 07:47:27,275 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 354.4MB. Free memory was 330.9MB in the beginning and 330.7MB in the end (delta: 164.1kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 07:47:27,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 516.58ms. Allocated memory is still 354.4MB. Free memory was 327.9MB in the beginning and 295.5MB in the end (delta: 32.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. [2023-08-25 07:47:27,276 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.75ms. Allocated memory is still 354.4MB. Free memory was 295.5MB in the beginning and 292.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 07:47:27,276 INFO L158 Benchmark]: Boogie Preprocessor took 18.90ms. Allocated memory is still 354.4MB. Free memory was 292.9MB in the beginning and 291.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 07:47:27,276 INFO L158 Benchmark]: RCFGBuilder took 431.19ms. Allocated memory is still 354.4MB. Free memory was 291.1MB in the beginning and 323.1MB in the end (delta: -32.0MB). Peak memory consumption was 14.1MB. Max. memory is 16.0GB. [2023-08-25 07:47:27,276 INFO L158 Benchmark]: TraceAbstraction took 124707.15ms. Allocated memory was 354.4MB in the beginning and 570.4MB in the end (delta: 216.0MB). Free memory was 322.4MB in the beginning and 220.7MB in the end (delta: 101.6MB). Peak memory consumption was 317.3MB. Max. memory is 16.0GB. [2023-08-25 07:47:27,278 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 354.4MB. Free memory was 330.9MB in the beginning and 330.7MB in the end (delta: 164.1kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 516.58ms. Allocated memory is still 354.4MB. Free memory was 327.9MB in the beginning and 295.5MB in the end (delta: 32.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 33.75ms. Allocated memory is still 354.4MB. Free memory was 295.5MB in the beginning and 292.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 18.90ms. Allocated memory is still 354.4MB. Free memory was 292.9MB in the beginning and 291.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 431.19ms. Allocated memory is still 354.4MB. Free memory was 291.1MB in the beginning and 323.1MB in the end (delta: -32.0MB). Peak memory consumption was 14.1MB. Max. memory is 16.0GB. * TraceAbstraction took 124707.15ms. Allocated memory was 354.4MB in the beginning and 570.4MB in the end (delta: 216.0MB). Free memory was 322.4MB in the beginning and 220.7MB in the end (delta: 101.6MB). Peak memory consumption was 317.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 274]: Unsoundness Warning unspecified type, defaulting to int C: short [274] - GenericResultAtLocation [Line: 274]: Unsoundness Warning unspecified type, defaulting to int C: short [274] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 104 PlacesBefore, 26 PlacesAfterwards, 100 TransitionsBefore, 21 TransitionsAfterwards, 630 CoEnabledTransitionPairs, 5 FixpointIterations, 43 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 103 TotalNumberOfCompositions, 635 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 606, independent: 598, independent conditional: 0, independent unconditional: 598, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 368, independent: 363, independent conditional: 0, independent unconditional: 363, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 606, independent: 235, independent conditional: 0, independent unconditional: 235, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 368, unknown conditional: 0, unknown unconditional: 368] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1123]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1125]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1126]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1126]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 20]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 147 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 124.6s, OverallIterations: 7, TraceHistogramMax: 6, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 51 mSolverCounterUnknown, 199 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 199 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 160 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 119 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1143 IncrementalHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 119 mSolverCounterUnsat, 0 mSDtfsCounter, 1143 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 68 SyntacticMatches, 6 SemanticMatches, 138 ConstructedPredicates, 5 IntricatePredicates, 1 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 115.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=145occurred in iteration=5, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 117.4s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 203 ConstructedInterpolants, 41 QuantifiedInterpolants, 3478 SizeOfPredicates, 34 NumberOfNonLiveVariables, 952 ConjunctsInSsa, 186 ConjunctsInUnsatCore, 15 InterpolantComputations, 3 PerfectInterpolantSequences, 15/141 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 07:47:27,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...