/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-wmm/safe011_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 14:43:20,323 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 14:43:20,401 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 14:43:20,408 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 14:43:20,408 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 14:43:20,439 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 14:43:20,440 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 14:43:20,440 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 14:43:20,441 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 14:43:20,444 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 14:43:20,444 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 14:43:20,445 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 14:43:20,445 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 14:43:20,446 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 14:43:20,446 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 14:43:20,446 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 14:43:20,446 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 14:43:20,447 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 14:43:20,447 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 14:43:20,447 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 14:43:20,447 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 14:43:20,448 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 14:43:20,448 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 14:43:20,449 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 14:43:20,449 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 14:43:20,449 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 14:43:20,449 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 14:43:20,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 14:43:20,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 14:43:20,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 14:43:20,451 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 14:43:20,451 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 14:43:20,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 14:43:20,451 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 14:43:20,452 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 14:43:20,452 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 14:43:20,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 14:43:20,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 14:43:20,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 14:43:20,761 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 14:43:20,761 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 14:43:20,762 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.i [2023-08-25 14:43:22,013 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 14:43:22,245 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 14:43:22,245 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.i [2023-08-25 14:43:22,257 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f90ea3366/da45d517423e4e53ab281f19f2216ba7/FLAG40f6a2279 [2023-08-25 14:43:22,272 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f90ea3366/da45d517423e4e53ab281f19f2216ba7 [2023-08-25 14:43:22,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 14:43:22,277 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 14:43:22,279 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 14:43:22,280 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 14:43:22,282 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 14:43:22,283 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:43:22" (1/1) ... [2023-08-25 14:43:22,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@740f3572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:43:22, skipping insertion in model container [2023-08-25 14:43:22,284 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:43:22" (1/1) ... [2023-08-25 14:43:22,338 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 14:43:22,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 14:43:22,672 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 14:43:22,703 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 14:43:22,705 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 14:43:22,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 14:43:22,754 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 14:43:22,754 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 14:43:22,760 INFO L206 MainTranslator]: Completed translation [2023-08-25 14:43:22,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:43:22 WrapperNode [2023-08-25 14:43:22,761 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 14:43:22,762 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 14:43:22,762 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 14:43:22,762 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 14:43:22,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:43:22" (1/1) ... [2023-08-25 14:43:22,786 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:43:22" (1/1) ... [2023-08-25 14:43:22,805 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 101 [2023-08-25 14:43:22,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 14:43:22,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 14:43:22,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 14:43:22,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 14:43:22,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:43:22" (1/1) ... [2023-08-25 14:43:22,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:43:22" (1/1) ... [2023-08-25 14:43:22,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:43:22" (1/1) ... [2023-08-25 14:43:22,818 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:43:22" (1/1) ... [2023-08-25 14:43:22,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:43:22" (1/1) ... [2023-08-25 14:43:22,824 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:43:22" (1/1) ... [2023-08-25 14:43:22,826 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:43:22" (1/1) ... [2023-08-25 14:43:22,827 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:43:22" (1/1) ... [2023-08-25 14:43:22,830 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 14:43:22,830 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 14:43:22,830 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 14:43:22,831 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 14:43:22,831 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:43:22" (1/1) ... [2023-08-25 14:43:22,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 14:43:22,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 14:43:22,866 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 14:43:22,890 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 14:43:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 14:43:22,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 14:43:22,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 14:43:22,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 14:43:22,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 14:43:22,901 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 14:43:22,901 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 14:43:22,901 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 14:43:22,901 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 14:43:22,902 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-25 14:43:22,902 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-25 14:43:22,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 14:43:22,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 14:43:22,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 14:43:22,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 14:43:22,903 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 14:43:23,010 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 14:43:23,012 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 14:43:23,200 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 14:43:23,392 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 14:43:23,392 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 14:43:23,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:43:23 BoogieIcfgContainer [2023-08-25 14:43:23,394 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 14:43:23,406 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 14:43:23,406 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 14:43:23,409 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 14:43:23,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 02:43:22" (1/3) ... [2023-08-25 14:43:23,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a1b3ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:43:23, skipping insertion in model container [2023-08-25 14:43:23,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:43:22" (2/3) ... [2023-08-25 14:43:23,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a1b3ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:43:23, skipping insertion in model container [2023-08-25 14:43:23,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:43:23" (3/3) ... [2023-08-25 14:43:23,411 INFO L112 eAbstractionObserver]: Analyzing ICFG safe011_tso.i [2023-08-25 14:43:23,430 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 14:43:23,431 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-08-25 14:43:23,432 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 14:43:23,486 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 14:43:23,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 113 transitions, 241 flow [2023-08-25 14:43:23,587 INFO L124 PetriNetUnfolderBase]: 3/110 cut-off events. [2023-08-25 14:43:23,587 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 14:43:23,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 110 events. 3/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 121 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-25 14:43:23,593 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 113 transitions, 241 flow [2023-08-25 14:43:23,597 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 110 transitions, 229 flow [2023-08-25 14:43:23,600 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 14:43:23,613 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 110 transitions, 229 flow [2023-08-25 14:43:23,616 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 110 transitions, 229 flow [2023-08-25 14:43:23,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 110 transitions, 229 flow [2023-08-25 14:43:23,649 INFO L124 PetriNetUnfolderBase]: 3/110 cut-off events. [2023-08-25 14:43:23,649 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 14:43:23,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 110 events. 3/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 121 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-25 14:43:23,653 INFO L119 LiptonReduction]: Number of co-enabled transitions 3788 [2023-08-25 14:43:26,966 INFO L134 LiptonReduction]: Checked pairs total: 12764 [2023-08-25 14:43:26,966 INFO L136 LiptonReduction]: Total number of compositions: 103 [2023-08-25 14:43:26,977 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 14:43:26,982 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;@ec2bddc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 14:43:26,982 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-08-25 14:43:26,984 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 14:43:26,984 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-25 14:43:26,984 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 14:43:26,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:43:26,984 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 14:43:26,985 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 14:43:26,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:43:26,989 INFO L85 PathProgramCache]: Analyzing trace with hash 561924, now seen corresponding path program 1 times [2023-08-25 14:43:26,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:43:26,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7711045] [2023-08-25 14:43:26,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:43:26,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:43:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:43:27,118 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 14:43:27,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:43:27,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7711045] [2023-08-25 14:43:27,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7711045] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:43:27,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:43:27,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 14:43:27,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165335490] [2023-08-25 14:43:27,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:43:27,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 14:43:27,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:43:27,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 14:43:27,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 14:43:27,148 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 216 [2023-08-25 14:43:27,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 89 flow. Second operand has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 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 14:43:27,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:43:27,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 216 [2023-08-25 14:43:27,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:43:27,282 INFO L124 PetriNetUnfolderBase]: 567/864 cut-off events. [2023-08-25 14:43:27,283 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-08-25 14:43:27,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 864 events. 567/864 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3184 event pairs, 567 based on Foata normal form. 0/800 useless extension candidates. Maximal degree in co-relation 1764. Up to 865 conditions per place. [2023-08-25 14:43:27,290 INFO L140 encePairwiseOnDemand]: 194/216 looper letters, 17 selfloop transitions, 0 changer transitions 1/18 dead transitions. [2023-08-25 14:43:27,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 81 flow [2023-08-25 14:43:27,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 14:43:27,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 14:43:27,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 192 transitions. [2023-08-25 14:43:27,301 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2023-08-25 14:43:27,301 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 192 transitions. [2023-08-25 14:43:27,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 192 transitions. [2023-08-25 14:43:27,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:43:27,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 192 transitions. [2023-08-25 14:43:27,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 96.0) internal successors, (192), 2 states have internal predecessors, (192), 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 14:43:27,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 216.0) internal successors, (648), 3 states have internal predecessors, (648), 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 14:43:27,310 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 216.0) internal successors, (648), 3 states have internal predecessors, (648), 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 14:43:27,312 INFO L175 Difference]: Start difference. First operand has 49 places, 40 transitions, 89 flow. Second operand 2 states and 192 transitions. [2023-08-25 14:43:27,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 81 flow [2023-08-25 14:43:27,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 14:43:27,315 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 40 flow [2023-08-25 14:43:27,317 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2023-08-25 14:43:27,319 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -23 predicate places. [2023-08-25 14:43:27,320 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 40 flow [2023-08-25 14:43:27,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 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 14:43:27,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:43:27,320 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:43:27,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 14:43:27,321 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 14:43:27,321 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:43:27,321 INFO L85 PathProgramCache]: Analyzing trace with hash 58615169, now seen corresponding path program 1 times [2023-08-25 14:43:27,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:43:27,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428652595] [2023-08-25 14:43:27,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:43:27,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:43:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:43:27,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 14:43:27,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:43:27,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428652595] [2023-08-25 14:43:27,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428652595] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:43:27,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:43:27,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 14:43:27,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669630214] [2023-08-25 14:43:27,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:43:27,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 14:43:27,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:43:27,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 14:43:27,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 14:43:27,457 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 216 [2023-08-25 14:43:27,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 14:43:27,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:43:27,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 216 [2023-08-25 14:43:27,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:43:27,522 INFO L124 PetriNetUnfolderBase]: 383/600 cut-off events. [2023-08-25 14:43:27,522 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 14:43:27,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1245 conditions, 600 events. 383/600 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2056 event pairs, 119 based on Foata normal form. 16/616 useless extension candidates. Maximal degree in co-relation 1242. Up to 441 conditions per place. [2023-08-25 14:43:27,528 INFO L140 encePairwiseOnDemand]: 213/216 looper letters, 22 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2023-08-25 14:43:27,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 24 transitions, 102 flow [2023-08-25 14:43:27,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 14:43:27,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 14:43:27,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2023-08-25 14:43:27,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38580246913580246 [2023-08-25 14:43:27,530 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 250 transitions. [2023-08-25 14:43:27,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 250 transitions. [2023-08-25 14:43:27,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:43:27,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 250 transitions. [2023-08-25 14:43:27,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:43:27,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 14:43:27,536 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 14:43:27,536 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 40 flow. Second operand 3 states and 250 transitions. [2023-08-25 14:43:27,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 24 transitions, 102 flow [2023-08-25 14:43:27,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 24 transitions, 102 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 14:43:27,537 INFO L231 Difference]: Finished difference. Result has 28 places, 17 transitions, 48 flow [2023-08-25 14:43:27,537 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=28, PETRI_TRANSITIONS=17} [2023-08-25 14:43:27,538 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -21 predicate places. [2023-08-25 14:43:27,538 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 17 transitions, 48 flow [2023-08-25 14:43:27,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 14:43:27,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:43:27,539 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:43:27,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 14:43:27,539 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 14:43:27,539 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:43:27,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1817069317, now seen corresponding path program 1 times [2023-08-25 14:43:27,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:43:27,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992164618] [2023-08-25 14:43:27,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:43:27,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:43:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:43:27,684 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 14:43:27,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:43:27,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992164618] [2023-08-25 14:43:27,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992164618] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:43:27,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:43:27,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 14:43:27,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929470515] [2023-08-25 14:43:27,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:43:27,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 14:43:27,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:43:27,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 14:43:27,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 14:43:27,687 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 216 [2023-08-25 14:43:27,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 17 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 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 14:43:27,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:43:27,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 216 [2023-08-25 14:43:27,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:43:27,792 INFO L124 PetriNetUnfolderBase]: 393/634 cut-off events. [2023-08-25 14:43:27,792 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2023-08-25 14:43:27,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1404 conditions, 634 events. 393/634 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2424 event pairs, 139 based on Foata normal form. 48/682 useless extension candidates. Maximal degree in co-relation 1399. Up to 220 conditions per place. [2023-08-25 14:43:27,795 INFO L140 encePairwiseOnDemand]: 212/216 looper letters, 25 selfloop transitions, 3 changer transitions 5/33 dead transitions. [2023-08-25 14:43:27,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 33 transitions, 151 flow [2023-08-25 14:43:27,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 14:43:27,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 14:43:27,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2023-08-25 14:43:27,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38310185185185186 [2023-08-25 14:43:27,800 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 331 transitions. [2023-08-25 14:43:27,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 331 transitions. [2023-08-25 14:43:27,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:43:27,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 331 transitions. [2023-08-25 14:43:27,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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 14:43:27,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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 14:43:27,806 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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 14:43:27,806 INFO L175 Difference]: Start difference. First operand has 28 places, 17 transitions, 48 flow. Second operand 4 states and 331 transitions. [2023-08-25 14:43:27,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 33 transitions, 151 flow [2023-08-25 14:43:27,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 33 transitions, 145 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 14:43:27,809 INFO L231 Difference]: Finished difference. Result has 31 places, 17 transitions, 58 flow [2023-08-25 14:43:27,809 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=58, PETRI_PLACES=31, PETRI_TRANSITIONS=17} [2023-08-25 14:43:27,810 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -18 predicate places. [2023-08-25 14:43:27,811 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 17 transitions, 58 flow [2023-08-25 14:43:27,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 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 14:43:27,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:43:27,811 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:43:27,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 14:43:27,815 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 14:43:27,815 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:43:27,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1553236904, now seen corresponding path program 1 times [2023-08-25 14:43:27,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:43:27,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8839489] [2023-08-25 14:43:27,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:43:27,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:43:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:43:27,909 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 14:43:27,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:43:27,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8839489] [2023-08-25 14:43:27,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8839489] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:43:27,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:43:27,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 14:43:27,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618341706] [2023-08-25 14:43:27,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:43:27,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 14:43:27,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:43:27,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 14:43:27,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 14:43:27,913 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 216 [2023-08-25 14:43:27,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 17 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 14:43:27,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:43:27,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 216 [2023-08-25 14:43:27,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:43:27,981 INFO L124 PetriNetUnfolderBase]: 212/355 cut-off events. [2023-08-25 14:43:27,981 INFO L125 PetriNetUnfolderBase]: For 193/193 co-relation queries the response was YES. [2023-08-25 14:43:27,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 906 conditions, 355 events. 212/355 cut-off events. For 193/193 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1221 event pairs, 55 based on Foata normal form. 2/357 useless extension candidates. Maximal degree in co-relation 899. Up to 320 conditions per place. [2023-08-25 14:43:27,983 INFO L140 encePairwiseOnDemand]: 212/216 looper letters, 25 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2023-08-25 14:43:27,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 28 transitions, 148 flow [2023-08-25 14:43:27,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 14:43:27,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 14:43:27,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2023-08-25 14:43:27,985 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39197530864197533 [2023-08-25 14:43:27,985 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 254 transitions. [2023-08-25 14:43:27,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 254 transitions. [2023-08-25 14:43:27,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:43:27,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 254 transitions. [2023-08-25 14:43:27,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 14:43:27,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 14:43:27,989 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 14:43:27,989 INFO L175 Difference]: Start difference. First operand has 31 places, 17 transitions, 58 flow. Second operand 3 states and 254 transitions. [2023-08-25 14:43:27,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 28 transitions, 148 flow [2023-08-25 14:43:27,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 131 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-25 14:43:27,991 INFO L231 Difference]: Finished difference. Result has 30 places, 19 transitions, 65 flow [2023-08-25 14:43:27,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=30, PETRI_TRANSITIONS=19} [2023-08-25 14:43:27,993 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -19 predicate places. [2023-08-25 14:43:27,993 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 19 transitions, 65 flow [2023-08-25 14:43:27,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 14:43:27,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:43:27,993 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:43:27,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 14:43:27,994 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 14:43:27,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:43:27,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1001333924, now seen corresponding path program 1 times [2023-08-25 14:43:27,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:43:27,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620447597] [2023-08-25 14:43:27,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:43:27,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:43:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:43:28,173 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 14:43:28,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:43:28,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620447597] [2023-08-25 14:43:28,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620447597] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:43:28,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:43:28,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 14:43:28,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546915613] [2023-08-25 14:43:28,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:43:28,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 14:43:28,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:43:28,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 14:43:28,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 14:43:28,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 216 [2023-08-25 14:43:28,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 19 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:43:28,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:43:28,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 216 [2023-08-25 14:43:28,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:43:28,243 INFO L124 PetriNetUnfolderBase]: 158/281 cut-off events. [2023-08-25 14:43:28,243 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2023-08-25 14:43:28,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 281 events. 158/281 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 901 event pairs, 53 based on Foata normal form. 15/296 useless extension candidates. Maximal degree in co-relation 731. Up to 206 conditions per place. [2023-08-25 14:43:28,245 INFO L140 encePairwiseOnDemand]: 211/216 looper letters, 30 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2023-08-25 14:43:28,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 34 transitions, 180 flow [2023-08-25 14:43:28,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 14:43:28,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 14:43:28,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-08-25 14:43:28,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3950617283950617 [2023-08-25 14:43:28,247 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-08-25 14:43:28,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-08-25 14:43:28,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:43:28,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-08-25 14:43:28,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:43:28,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 14:43:28,250 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 14:43:28,250 INFO L175 Difference]: Start difference. First operand has 30 places, 19 transitions, 65 flow. Second operand 3 states and 256 transitions. [2023-08-25 14:43:28,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 34 transitions, 180 flow [2023-08-25 14:43:28,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 34 transitions, 175 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 14:43:28,252 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 88 flow [2023-08-25 14:43:28,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2023-08-25 14:43:28,253 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -17 predicate places. [2023-08-25 14:43:28,253 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 88 flow [2023-08-25 14:43:28,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:43:28,253 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:43:28,253 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:43:28,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 14:43:28,254 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 14:43:28,254 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:43:28,254 INFO L85 PathProgramCache]: Analyzing trace with hash -169861271, now seen corresponding path program 1 times [2023-08-25 14:43:28,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:43:28,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499334438] [2023-08-25 14:43:28,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:43:28,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:43:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:43:28,379 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 14:43:28,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:43:28,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499334438] [2023-08-25 14:43:28,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499334438] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:43:28,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:43:28,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 14:43:28,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080820326] [2023-08-25 14:43:28,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:43:28,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 14:43:28,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:43:28,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 14:43:28,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 14:43:28,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 216 [2023-08-25 14:43:28,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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 14:43:28,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:43:28,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 216 [2023-08-25 14:43:28,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:43:28,437 INFO L124 PetriNetUnfolderBase]: 106/202 cut-off events. [2023-08-25 14:43:28,437 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-08-25 14:43:28,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 202 events. 106/202 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 599 event pairs, 37 based on Foata normal form. 17/219 useless extension candidates. Maximal degree in co-relation 612. Up to 76 conditions per place. [2023-08-25 14:43:28,439 INFO L140 encePairwiseOnDemand]: 211/216 looper letters, 36 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2023-08-25 14:43:28,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 43 transitions, 245 flow [2023-08-25 14:43:28,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 14:43:28,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 14:43:28,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 340 transitions. [2023-08-25 14:43:28,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39351851851851855 [2023-08-25 14:43:28,440 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 340 transitions. [2023-08-25 14:43:28,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 340 transitions. [2023-08-25 14:43:28,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:43:28,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 340 transitions. [2023-08-25 14:43:28,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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 14:43:28,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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 14:43:28,444 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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 14:43:28,444 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 88 flow. Second operand 4 states and 340 transitions. [2023-08-25 14:43:28,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 43 transitions, 245 flow [2023-08-25 14:43:28,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 43 transitions, 241 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 14:43:28,446 INFO L231 Difference]: Finished difference. Result has 35 places, 25 transitions, 124 flow [2023-08-25 14:43:28,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=124, PETRI_PLACES=35, PETRI_TRANSITIONS=25} [2023-08-25 14:43:28,447 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -14 predicate places. [2023-08-25 14:43:28,447 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 124 flow [2023-08-25 14:43:28,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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 14:43:28,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:43:28,447 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:43:28,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 14:43:28,448 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 14:43:28,448 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:43:28,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1461097668, now seen corresponding path program 1 times [2023-08-25 14:43:28,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:43:28,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212755688] [2023-08-25 14:43:28,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:43:28,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:43:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:43:28,481 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 14:43:28,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:43:28,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212755688] [2023-08-25 14:43:28,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212755688] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:43:28,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:43:28,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 14:43:28,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789093437] [2023-08-25 14:43:28,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:43:28,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 14:43:28,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:43:28,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 14:43:28,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 14:43:28,484 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 216 [2023-08-25 14:43:28,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 14:43:28,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:43:28,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 216 [2023-08-25 14:43:28,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:43:28,528 INFO L124 PetriNetUnfolderBase]: 116/230 cut-off events. [2023-08-25 14:43:28,528 INFO L125 PetriNetUnfolderBase]: For 267/267 co-relation queries the response was YES. [2023-08-25 14:43:28,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 785 conditions, 230 events. 116/230 cut-off events. For 267/267 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 714 event pairs, 76 based on Foata normal form. 6/236 useless extension candidates. Maximal degree in co-relation 777. Up to 186 conditions per place. [2023-08-25 14:43:28,530 INFO L140 encePairwiseOnDemand]: 213/216 looper letters, 28 selfloop transitions, 3 changer transitions 5/36 dead transitions. [2023-08-25 14:43:28,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 36 transitions, 264 flow [2023-08-25 14:43:28,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 14:43:28,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 14:43:28,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 249 transitions. [2023-08-25 14:43:28,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38425925925925924 [2023-08-25 14:43:28,531 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 249 transitions. [2023-08-25 14:43:28,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 249 transitions. [2023-08-25 14:43:28,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:43:28,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 249 transitions. [2023-08-25 14:43:28,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 14:43:28,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 14:43:28,534 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 14:43:28,534 INFO L175 Difference]: Start difference. First operand has 35 places, 25 transitions, 124 flow. Second operand 3 states and 249 transitions. [2023-08-25 14:43:28,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 36 transitions, 264 flow [2023-08-25 14:43:28,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 36 transitions, 238 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-08-25 14:43:28,536 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 121 flow [2023-08-25 14:43:28,536 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2023-08-25 14:43:28,537 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -13 predicate places. [2023-08-25 14:43:28,537 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 121 flow [2023-08-25 14:43:28,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 14:43:28,537 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:43:28,537 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:43:28,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 14:43:28,538 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 14:43:28,538 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:43:28,538 INFO L85 PathProgramCache]: Analyzing trace with hash 321563750, now seen corresponding path program 1 times [2023-08-25 14:43:28,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:43:28,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017924805] [2023-08-25 14:43:28,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:43:28,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:43:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:43:28,639 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 14:43:28,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:43:28,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017924805] [2023-08-25 14:43:28,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017924805] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:43:28,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:43:28,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 14:43:28,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252196965] [2023-08-25 14:43:28,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:43:28,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 14:43:28,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:43:28,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 14:43:28,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-25 14:43:28,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 216 [2023-08-25 14:43:28,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 121 flow. Second operand has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:43:28,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:43:28,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 216 [2023-08-25 14:43:28,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:43:28,702 INFO L124 PetriNetUnfolderBase]: 101/197 cut-off events. [2023-08-25 14:43:28,703 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2023-08-25 14:43:28,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 628 conditions, 197 events. 101/197 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 606 event pairs, 35 based on Foata normal form. 11/208 useless extension candidates. Maximal degree in co-relation 619. Up to 78 conditions per place. [2023-08-25 14:43:28,704 INFO L140 encePairwiseOnDemand]: 211/216 looper letters, 21 selfloop transitions, 10 changer transitions 12/43 dead transitions. [2023-08-25 14:43:28,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 43 transitions, 281 flow [2023-08-25 14:43:28,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 14:43:28,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 14:43:28,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 415 transitions. [2023-08-25 14:43:28,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38425925925925924 [2023-08-25 14:43:28,706 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 415 transitions. [2023-08-25 14:43:28,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 415 transitions. [2023-08-25 14:43:28,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:43:28,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 415 transitions. [2023-08-25 14:43:28,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 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 14:43:28,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 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 14:43:28,709 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 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 14:43:28,710 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 121 flow. Second operand 5 states and 415 transitions. [2023-08-25 14:43:28,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 43 transitions, 281 flow [2023-08-25 14:43:28,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 43 transitions, 259 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-25 14:43:28,711 INFO L231 Difference]: Finished difference. Result has 39 places, 23 transitions, 128 flow [2023-08-25 14:43:28,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=128, PETRI_PLACES=39, PETRI_TRANSITIONS=23} [2023-08-25 14:43:28,712 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -10 predicate places. [2023-08-25 14:43:28,712 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 23 transitions, 128 flow [2023-08-25 14:43:28,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:43:28,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:43:28,713 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:43:28,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 14:43:28,713 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 14:43:28,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:43:28,713 INFO L85 PathProgramCache]: Analyzing trace with hash -811508161, now seen corresponding path program 1 times [2023-08-25 14:43:28,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:43:28,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902576225] [2023-08-25 14:43:28,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:43:28,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:43:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:43:28,748 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 14:43:28,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:43:28,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902576225] [2023-08-25 14:43:28,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902576225] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:43:28,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:43:28,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 14:43:28,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859157332] [2023-08-25 14:43:28,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:43:28,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 14:43:28,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:43:28,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 14:43:28,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 14:43:28,750 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 216 [2023-08-25 14:43:28,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 23 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 14:43:28,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:43:28,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 216 [2023-08-25 14:43:28,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:43:28,778 INFO L124 PetriNetUnfolderBase]: 21/55 cut-off events. [2023-08-25 14:43:28,778 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2023-08-25 14:43:28,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 55 events. 21/55 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 81 event pairs, 11 based on Foata normal form. 1/56 useless extension candidates. Maximal degree in co-relation 204. Up to 39 conditions per place. [2023-08-25 14:43:28,778 INFO L140 encePairwiseOnDemand]: 214/216 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2023-08-25 14:43:28,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 26 transitions, 206 flow [2023-08-25 14:43:28,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 14:43:28,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 14:43:28,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2023-08-25 14:43:28,780 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3765432098765432 [2023-08-25 14:43:28,780 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 244 transitions. [2023-08-25 14:43:28,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 244 transitions. [2023-08-25 14:43:28,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:43:28,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 244 transitions. [2023-08-25 14:43:28,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 14:43:28,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 14:43:28,782 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 14:43:28,782 INFO L175 Difference]: Start difference. First operand has 39 places, 23 transitions, 128 flow. Second operand 3 states and 244 transitions. [2023-08-25 14:43:28,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 26 transitions, 206 flow [2023-08-25 14:43:28,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 166 flow, removed 6 selfloop flow, removed 7 redundant places. [2023-08-25 14:43:28,784 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2023-08-25 14:43:28,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2023-08-25 14:43:28,784 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -16 predicate places. [2023-08-25 14:43:28,784 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2023-08-25 14:43:28,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 14:43:28,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2023-08-25 14:43:28,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2023-08-25 14:43:28,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2023-08-25 14:43:28,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2023-08-25 14:43:28,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2023-08-25 14:43:28,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2023-08-25 14:43:28,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2023-08-25 14:43:28,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2023-08-25 14:43:28,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2023-08-25 14:43:28,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2023-08-25 14:43:28,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2023-08-25 14:43:28,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2023-08-25 14:43:28,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2023-08-25 14:43:28,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2023-08-25 14:43:28,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2023-08-25 14:43:28,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2023-08-25 14:43:28,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2023-08-25 14:43:28,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2023-08-25 14:43:28,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2023-08-25 14:43:28,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2023-08-25 14:43:28,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2023-08-25 14:43:28,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (16 of 38 remaining) [2023-08-25 14:43:28,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 38 remaining) [2023-08-25 14:43:28,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 38 remaining) [2023-08-25 14:43:28,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 38 remaining) [2023-08-25 14:43:28,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2023-08-25 14:43:28,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2023-08-25 14:43:28,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2023-08-25 14:43:28,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2023-08-25 14:43:28,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2023-08-25 14:43:28,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2023-08-25 14:43:28,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2023-08-25 14:43:28,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2023-08-25 14:43:28,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2023-08-25 14:43:28,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2023-08-25 14:43:28,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2023-08-25 14:43:28,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2023-08-25 14:43:28,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2023-08-25 14:43:28,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 14:43:28,792 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:43:28,796 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 14:43:28,796 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 14:43:28,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 02:43:28 BasicIcfg [2023-08-25 14:43:28,799 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 14:43:28,799 INFO L158 Benchmark]: Toolchain (without parser) took 6521.95ms. Allocated memory was 373.3MB in the beginning and 492.8MB in the end (delta: 119.5MB). Free memory was 348.2MB in the beginning and 328.2MB in the end (delta: 19.9MB). Peak memory consumption was 140.0MB. Max. memory is 16.0GB. [2023-08-25 14:43:28,799 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 373.3MB. Free memory is still 349.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 14:43:28,800 INFO L158 Benchmark]: CACSL2BoogieTranslator took 481.66ms. Allocated memory is still 373.3MB. Free memory was 347.7MB in the beginning and 327.2MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 14:43:28,800 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.96ms. Allocated memory is still 373.3MB. Free memory was 327.2MB in the beginning and 325.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 14:43:28,800 INFO L158 Benchmark]: Boogie Preprocessor took 23.29ms. Allocated memory is still 373.3MB. Free memory was 325.1MB in the beginning and 323.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 14:43:28,800 INFO L158 Benchmark]: RCFGBuilder took 563.97ms. Allocated memory is still 373.3MB. Free memory was 323.7MB in the beginning and 349.5MB in the end (delta: -25.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.0GB. [2023-08-25 14:43:28,801 INFO L158 Benchmark]: TraceAbstraction took 5392.93ms. Allocated memory was 373.3MB in the beginning and 492.8MB in the end (delta: 119.5MB). Free memory was 348.7MB in the beginning and 328.2MB in the end (delta: 20.4MB). Peak memory consumption was 140.0MB. Max. memory is 16.0GB. [2023-08-25 14:43:28,802 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 373.3MB. Free memory is still 349.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 481.66ms. Allocated memory is still 373.3MB. Free memory was 347.7MB in the beginning and 327.2MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.96ms. Allocated memory is still 373.3MB. Free memory was 327.2MB in the beginning and 325.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.29ms. Allocated memory is still 373.3MB. Free memory was 325.1MB in the beginning and 323.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 563.97ms. Allocated memory is still 373.3MB. Free memory was 323.7MB in the beginning and 349.5MB in the end (delta: -25.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.0GB. * TraceAbstraction took 5392.93ms. Allocated memory was 373.3MB in the beginning and 492.8MB in the end (delta: 119.5MB). Free memory was 348.7MB in the beginning and 328.2MB in the end (delta: 20.4MB). Peak memory consumption was 140.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 117 PlacesBefore, 49 PlacesAfterwards, 110 TransitionsBefore, 40 TransitionsAfterwards, 3788 CoEnabledTransitionPairs, 7 FixpointIterations, 19 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 103 TotalNumberOfCompositions, 12764 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6034, independent: 5771, independent conditional: 0, independent unconditional: 5771, dependent: 263, dependent conditional: 0, dependent unconditional: 263, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2096, independent: 2031, independent conditional: 0, independent unconditional: 2031, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6034, independent: 3740, independent conditional: 0, independent unconditional: 3740, dependent: 198, dependent conditional: 0, dependent unconditional: 198, unknown: 2096, unknown conditional: 0, unknown unconditional: 2096] , Statistics on independence cache: Total cache size (in pairs): 272, Positive cache size: 245, Positive conditional cache size: 0, Positive unconditional cache size: 245, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 726]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 731]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 731]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 738]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 741]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 746]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 746]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 753]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 753]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 756]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 761]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 761]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 783]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 783]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 785]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 789]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 789]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 789]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 789]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 17]: 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 7 procedures, 148 locations, 38 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 307 IncrementalHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 307 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=8, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 225 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 14:43:28,816 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...