/usr/bin/java -Xmx8000000000 -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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:37:57,370 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:37:57,408 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-10 11:37:57,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:37:57,447 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:37:57,447 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:37:57,448 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:37:57,448 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:37:57,448 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:37:57,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:37:57,451 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:37:57,452 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:37:57,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:37:57,453 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:37:57,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:37:57,453 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:37:57,453 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:37:57,454 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:37:57,454 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:37:57,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:37:57,454 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:37:57,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:37:57,455 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:37:57,455 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:37:57,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:37:57,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:37:57,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:37:57,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:37:57,455 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:37:57,456 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:37:57,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:37:57,456 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:37:57,457 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:37:57,457 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:37:57,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:37:57,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:37:57,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:37:57,676 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:37:57,678 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:37:57,679 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i [2023-11-10 11:37:58,633 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:37:58,873 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:37:58,873 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i [2023-11-10 11:37:58,892 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/728b7af85/cb6a7e0e599440dd96e527205eed186b/FLAGb1b9ce1ad [2023-11-10 11:37:58,902 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/728b7af85/cb6a7e0e599440dd96e527205eed186b [2023-11-10 11:37:58,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:37:58,904 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:37:58,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:37:58,905 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:37:58,908 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:37:58,909 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:37:58" (1/1) ... [2023-11-10 11:37:58,909 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@591448bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:58, skipping insertion in model container [2023-11-10 11:37:58,909 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:37:58" (1/1) ... [2023-11-10 11:37:58,946 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:37:59,046 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-11-10 11:37:59,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:37:59,177 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:37:59,185 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-11-10 11:37:59,236 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:37:59,260 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:37:59,261 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:37:59,265 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:37:59,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:59 WrapperNode [2023-11-10 11:37:59,266 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:37:59,267 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:37:59,267 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:37:59,267 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:37:59,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:59" (1/1) ... [2023-11-10 11:37:59,308 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:59" (1/1) ... [2023-11-10 11:37:59,333 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 144 [2023-11-10 11:37:59,334 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:37:59,334 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:37:59,335 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:37:59,335 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:37:59,341 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:59" (1/1) ... [2023-11-10 11:37:59,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:59" (1/1) ... [2023-11-10 11:37:59,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:59" (1/1) ... [2023-11-10 11:37:59,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:59" (1/1) ... [2023-11-10 11:37:59,350 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:59" (1/1) ... [2023-11-10 11:37:59,352 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:59" (1/1) ... [2023-11-10 11:37:59,353 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:59" (1/1) ... [2023-11-10 11:37:59,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:59" (1/1) ... [2023-11-10 11:37:59,356 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:37:59,357 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:37:59,357 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:37:59,357 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:37:59,358 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:59" (1/1) ... [2023-11-10 11:37:59,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:37:59,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:37:59,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-10 11:37:59,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-10 11:37:59,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:37:59,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-10 11:37:59,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:37:59,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:37:59,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:37:59,416 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-10 11:37:59,416 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-10 11:37:59,416 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-10 11:37:59,416 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-10 11:37:59,416 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-10 11:37:59,416 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-10 11:37:59,416 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-10 11:37:59,417 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-10 11:37:59,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:37:59,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-10 11:37:59,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:37:59,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:37:59,419 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-10 11:37:59,541 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:37:59,543 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:37:59,848 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:37:59,975 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:37:59,975 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-10 11:37:59,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:37:59 BoogieIcfgContainer [2023-11-10 11:37:59,987 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:37:59,988 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:37:59,988 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:37:59,990 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:37:59,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:37:58" (1/3) ... [2023-11-10 11:37:59,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303b2ed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:37:59, skipping insertion in model container [2023-11-10 11:37:59,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:59" (2/3) ... [2023-11-10 11:37:59,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303b2ed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:37:59, skipping insertion in model container [2023-11-10 11:37:59,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:37:59" (3/3) ... [2023-11-10 11:37:59,992 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008_power.oepc_pso.oepc_rmo.oepc.i [2023-11-10 11:38:00,004 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:38:00,004 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-10 11:38:00,004 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:38:00,050 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-10 11:38:00,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 136 transitions, 288 flow [2023-11-10 11:38:00,113 INFO L124 PetriNetUnfolderBase]: 3/132 cut-off events. [2023-11-10 11:38:00,113 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:38:00,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 3/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 77 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2023-11-10 11:38:00,119 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 136 transitions, 288 flow [2023-11-10 11:38:00,126 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 132 transitions, 276 flow [2023-11-10 11:38:00,133 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:38:00,139 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@43912871, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:38:00,139 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-10 11:38:00,149 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:38:00,149 INFO L124 PetriNetUnfolderBase]: 1/49 cut-off events. [2023-11-10 11:38:00,150 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:38:00,150 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:38:00,150 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:38:00,151 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:38:00,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:38:00,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1521793863, now seen corresponding path program 1 times [2023-11-10 11:38:00,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:38:00,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046193644] [2023-11-10 11:38:00,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:38:00,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:38:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:38:00,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:38:00,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:38:00,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046193644] [2023-11-10 11:38:00,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046193644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:38:00,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:38:00,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-10 11:38:00,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571688649] [2023-11-10 11:38:00,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:38:00,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-10 11:38:00,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:38:00,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-10 11:38:00,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-10 11:38:00,546 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 136 [2023-11-10 11:38:00,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 132 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:00,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:38:00,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 136 [2023-11-10 11:38:00,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:38:00,764 INFO L124 PetriNetUnfolderBase]: 162/623 cut-off events. [2023-11-10 11:38:00,764 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2023-11-10 11:38:00,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 929 conditions, 623 events. 162/623 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3482 event pairs, 100 based on Foata normal form. 42/623 useless extension candidates. Maximal degree in co-relation 875. Up to 191 conditions per place. [2023-11-10 11:38:00,773 INFO L140 encePairwiseOnDemand]: 130/136 looper letters, 18 selfloop transitions, 2 changer transitions 0/135 dead transitions. [2023-11-10 11:38:00,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 135 transitions, 331 flow [2023-11-10 11:38:00,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-10 11:38:00,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-10 11:38:00,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2023-11-10 11:38:00,787 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9387254901960784 [2023-11-10 11:38:00,788 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2023-11-10 11:38:00,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2023-11-10 11:38:00,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:38:00,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2023-11-10 11:38:00,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:00,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:00,803 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:00,804 INFO L175 Difference]: Start difference. First operand has 142 places, 132 transitions, 276 flow. Second operand 3 states and 383 transitions. [2023-11-10 11:38:00,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 135 transitions, 331 flow [2023-11-10 11:38:00,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 135 transitions, 324 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-10 11:38:00,811 INFO L231 Difference]: Finished difference. Result has 138 places, 127 transitions, 266 flow [2023-11-10 11:38:00,812 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=138, PETRI_TRANSITIONS=127} [2023-11-10 11:38:00,816 INFO L281 CegarLoopForPetriNet]: 142 programPoint places, -4 predicate places. [2023-11-10 11:38:00,816 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 127 transitions, 266 flow [2023-11-10 11:38:00,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:00,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:38:00,818 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:38:00,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:38:00,818 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:38:00,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:38:00,820 INFO L85 PathProgramCache]: Analyzing trace with hash 5558141, now seen corresponding path program 1 times [2023-11-10 11:38:00,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:38:00,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014897955] [2023-11-10 11:38:00,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:38:00,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:38:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:38:01,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:38:01,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:38:01,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014897955] [2023-11-10 11:38:01,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014897955] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:38:01,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:38:01,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:38:01,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109445621] [2023-11-10 11:38:01,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:38:01,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:38:01,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:38:01,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:38:01,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:38:01,214 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 136 [2023-11-10 11:38:01,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 127 transitions, 266 flow. Second operand has 7 states, 7 states have (on average 100.42857142857143) internal successors, (703), 7 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:01,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:38:01,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 136 [2023-11-10 11:38:01,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:38:05,500 INFO L124 PetriNetUnfolderBase]: 22340/40402 cut-off events. [2023-11-10 11:38:05,500 INFO L125 PetriNetUnfolderBase]: For 1735/1735 co-relation queries the response was YES. [2023-11-10 11:38:05,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72650 conditions, 40402 events. 22340/40402 cut-off events. For 1735/1735 co-relation queries the response was YES. Maximal size of possible extension queue 1561. Compared 366273 event pairs, 2030 based on Foata normal form. 0/39785 useless extension candidates. Maximal degree in co-relation 72592. Up to 10222 conditions per place. [2023-11-10 11:38:05,697 INFO L140 encePairwiseOnDemand]: 119/136 looper letters, 47 selfloop transitions, 11 changer transitions 143/283 dead transitions. [2023-11-10 11:38:05,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 283 transitions, 978 flow [2023-11-10 11:38:05,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:38:05,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:38:05,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1466 transitions. [2023-11-10 11:38:05,701 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.829185520361991 [2023-11-10 11:38:05,701 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1466 transitions. [2023-11-10 11:38:05,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1466 transitions. [2023-11-10 11:38:05,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:38:05,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1466 transitions. [2023-11-10 11:38:05,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 112.76923076923077) internal successors, (1466), 13 states have internal predecessors, (1466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:05,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:05,707 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:05,707 INFO L175 Difference]: Start difference. First operand has 138 places, 127 transitions, 266 flow. Second operand 13 states and 1466 transitions. [2023-11-10 11:38:05,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 283 transitions, 978 flow [2023-11-10 11:38:05,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 283 transitions, 952 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-10 11:38:05,712 INFO L231 Difference]: Finished difference. Result has 160 places, 119 transitions, 368 flow [2023-11-10 11:38:05,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=368, PETRI_PLACES=160, PETRI_TRANSITIONS=119} [2023-11-10 11:38:05,713 INFO L281 CegarLoopForPetriNet]: 142 programPoint places, 18 predicate places. [2023-11-10 11:38:05,713 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 119 transitions, 368 flow [2023-11-10 11:38:05,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 100.42857142857143) internal successors, (703), 7 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:05,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:38:05,714 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:38:05,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 11:38:05,714 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:38:05,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:38:05,714 INFO L85 PathProgramCache]: Analyzing trace with hash -390085145, now seen corresponding path program 1 times [2023-11-10 11:38:05,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:38:05,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237220855] [2023-11-10 11:38:05,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:38:05,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:38:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:38:05,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:38:05,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:38:05,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237220855] [2023-11-10 11:38:05,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237220855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:38:05,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:38:05,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:38:05,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992071] [2023-11-10 11:38:05,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:38:05,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:38:05,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:38:05,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:38:05,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:38:05,977 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 136 [2023-11-10 11:38:05,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 119 transitions, 368 flow. Second operand has 7 states, 7 states have (on average 100.57142857142857) internal successors, (704), 7 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:05,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:38:05,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 136 [2023-11-10 11:38:05,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:38:08,557 INFO L124 PetriNetUnfolderBase]: 10836/19161 cut-off events. [2023-11-10 11:38:08,557 INFO L125 PetriNetUnfolderBase]: For 35668/35746 co-relation queries the response was YES. [2023-11-10 11:38:08,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58938 conditions, 19161 events. 10836/19161 cut-off events. For 35668/35746 co-relation queries the response was YES. Maximal size of possible extension queue 842. Compared 157433 event pairs, 2124 based on Foata normal form. 420/19077 useless extension candidates. Maximal degree in co-relation 58864. Up to 4621 conditions per place. [2023-11-10 11:38:08,669 INFO L140 encePairwiseOnDemand]: 124/136 looper letters, 55 selfloop transitions, 13 changer transitions 118/268 dead transitions. [2023-11-10 11:38:08,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 268 transitions, 1584 flow [2023-11-10 11:38:08,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:38:08,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:38:08,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1435 transitions. [2023-11-10 11:38:08,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8116515837104072 [2023-11-10 11:38:08,673 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1435 transitions. [2023-11-10 11:38:08,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1435 transitions. [2023-11-10 11:38:08,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:38:08,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1435 transitions. [2023-11-10 11:38:08,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 110.38461538461539) internal successors, (1435), 13 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:08,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:08,679 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:08,679 INFO L175 Difference]: Start difference. First operand has 160 places, 119 transitions, 368 flow. Second operand 13 states and 1435 transitions. [2023-11-10 11:38:08,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 268 transitions, 1584 flow [2023-11-10 11:38:08,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 268 transitions, 1556 flow, removed 12 selfloop flow, removed 4 redundant places. [2023-11-10 11:38:08,786 INFO L231 Difference]: Finished difference. Result has 156 places, 128 transitions, 543 flow [2023-11-10 11:38:08,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=543, PETRI_PLACES=156, PETRI_TRANSITIONS=128} [2023-11-10 11:38:08,787 INFO L281 CegarLoopForPetriNet]: 142 programPoint places, 14 predicate places. [2023-11-10 11:38:08,787 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 128 transitions, 543 flow [2023-11-10 11:38:08,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 100.57142857142857) internal successors, (704), 7 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:08,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:38:08,787 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:38:08,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-10 11:38:08,788 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:38:08,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:38:08,788 INFO L85 PathProgramCache]: Analyzing trace with hash 213100965, now seen corresponding path program 1 times [2023-11-10 11:38:08,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:38:08,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066020029] [2023-11-10 11:38:08,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:38:08,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:38:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:38:08,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:38:08,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:38:08,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066020029] [2023-11-10 11:38:08,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066020029] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:38:08,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:38:08,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:38:08,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47185223] [2023-11-10 11:38:08,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:38:08,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:38:08,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:38:08,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:38:08,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:38:08,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 136 [2023-11-10 11:38:08,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 128 transitions, 543 flow. Second operand has 7 states, 7 states have (on average 100.85714285714286) internal successors, (706), 7 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:08,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:38:08,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 136 [2023-11-10 11:38:08,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:38:10,956 INFO L124 PetriNetUnfolderBase]: 8303/14596 cut-off events. [2023-11-10 11:38:10,956 INFO L125 PetriNetUnfolderBase]: For 55049/55076 co-relation queries the response was YES. [2023-11-10 11:38:11,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53161 conditions, 14596 events. 8303/14596 cut-off events. For 55049/55076 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 113776 event pairs, 1754 based on Foata normal form. 242/14303 useless extension candidates. Maximal degree in co-relation 53077. Up to 4869 conditions per place. [2023-11-10 11:38:11,067 INFO L140 encePairwiseOnDemand]: 119/136 looper letters, 49 selfloop transitions, 32 changer transitions 91/254 dead transitions. [2023-11-10 11:38:11,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 254 transitions, 1767 flow [2023-11-10 11:38:11,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:38:11,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:38:11,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1432 transitions. [2023-11-10 11:38:11,085 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8099547511312217 [2023-11-10 11:38:11,086 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1432 transitions. [2023-11-10 11:38:11,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1432 transitions. [2023-11-10 11:38:11,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:38:11,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1432 transitions. [2023-11-10 11:38:11,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:11,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:11,098 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:11,098 INFO L175 Difference]: Start difference. First operand has 156 places, 128 transitions, 543 flow. Second operand 13 states and 1432 transitions. [2023-11-10 11:38:11,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 254 transitions, 1767 flow [2023-11-10 11:38:11,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 254 transitions, 1690 flow, removed 36 selfloop flow, removed 4 redundant places. [2023-11-10 11:38:11,327 INFO L231 Difference]: Finished difference. Result has 167 places, 139 transitions, 810 flow [2023-11-10 11:38:11,327 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=810, PETRI_PLACES=167, PETRI_TRANSITIONS=139} [2023-11-10 11:38:11,328 INFO L281 CegarLoopForPetriNet]: 142 programPoint places, 25 predicate places. [2023-11-10 11:38:11,328 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 139 transitions, 810 flow [2023-11-10 11:38:11,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 100.85714285714286) internal successors, (706), 7 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:11,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:38:11,328 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:38:11,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-10 11:38:11,329 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:38:11,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:38:11,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1744373166, now seen corresponding path program 1 times [2023-11-10 11:38:11,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:38:11,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915525740] [2023-11-10 11:38:11,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:38:11,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:38:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:38:11,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:38:11,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:38:11,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915525740] [2023-11-10 11:38:11,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915525740] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:38:11,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:38:11,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:38:11,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481139769] [2023-11-10 11:38:11,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:38:11,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:38:11,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:38:11,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:38:11,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:38:11,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2023-11-10 11:38:11,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 139 transitions, 810 flow. Second operand has 6 states, 6 states have (on average 108.33333333333333) internal successors, (650), 6 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:11,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:38:11,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2023-11-10 11:38:11,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:38:16,862 INFO L124 PetriNetUnfolderBase]: 25383/43498 cut-off events. [2023-11-10 11:38:16,862 INFO L125 PetriNetUnfolderBase]: For 75377/94473 co-relation queries the response was YES. [2023-11-10 11:38:17,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108595 conditions, 43498 events. 25383/43498 cut-off events. For 75377/94473 co-relation queries the response was YES. Maximal size of possible extension queue 2528. Compared 400472 event pairs, 1352 based on Foata normal form. 792/42115 useless extension candidates. Maximal degree in co-relation 108498. Up to 16158 conditions per place. [2023-11-10 11:38:17,456 INFO L140 encePairwiseOnDemand]: 125/136 looper letters, 103 selfloop transitions, 20 changer transitions 0/235 dead transitions. [2023-11-10 11:38:17,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 235 transitions, 1506 flow [2023-11-10 11:38:17,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-10 11:38:17,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-10 11:38:17,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1169 transitions. [2023-11-10 11:38:17,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8595588235294118 [2023-11-10 11:38:17,464 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1169 transitions. [2023-11-10 11:38:17,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1169 transitions. [2023-11-10 11:38:17,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:38:17,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1169 transitions. [2023-11-10 11:38:17,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 116.9) internal successors, (1169), 10 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:17,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:17,469 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:17,469 INFO L175 Difference]: Start difference. First operand has 167 places, 139 transitions, 810 flow. Second operand 10 states and 1169 transitions. [2023-11-10 11:38:17,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 235 transitions, 1506 flow [2023-11-10 11:38:17,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 235 transitions, 1404 flow, removed 51 selfloop flow, removed 15 redundant places. [2023-11-10 11:38:17,592 INFO L231 Difference]: Finished difference. Result has 158 places, 157 transitions, 893 flow [2023-11-10 11:38:17,592 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=893, PETRI_PLACES=158, PETRI_TRANSITIONS=157} [2023-11-10 11:38:17,593 INFO L281 CegarLoopForPetriNet]: 142 programPoint places, 16 predicate places. [2023-11-10 11:38:17,593 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 157 transitions, 893 flow [2023-11-10 11:38:17,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.33333333333333) internal successors, (650), 6 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:17,593 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:38:17,593 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:38:17,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-10 11:38:17,594 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:38:17,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:38:17,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1161864688, now seen corresponding path program 1 times [2023-11-10 11:38:17,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:38:17,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108641242] [2023-11-10 11:38:17,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:38:17,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:38:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:38:17,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:38:17,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:38:17,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108641242] [2023-11-10 11:38:17,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108641242] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:38:17,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:38:17,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:38:17,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828605526] [2023-11-10 11:38:17,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:38:17,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:38:17,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:38:17,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:38:17,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:38:17,975 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 136 [2023-11-10 11:38:17,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 157 transitions, 893 flow. Second operand has 7 states, 7 states have (on average 101.28571428571429) internal successors, (709), 7 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:17,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:38:17,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 136 [2023-11-10 11:38:17,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:38:21,626 INFO L124 PetriNetUnfolderBase]: 10936/28542 cut-off events. [2023-11-10 11:38:21,627 INFO L125 PetriNetUnfolderBase]: For 71613/74947 co-relation queries the response was YES. [2023-11-10 11:38:21,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88257 conditions, 28542 events. 10936/28542 cut-off events. For 71613/74947 co-relation queries the response was YES. Maximal size of possible extension queue 1909. Compared 350188 event pairs, 2775 based on Foata normal form. 523/27346 useless extension candidates. Maximal degree in co-relation 88161. Up to 4750 conditions per place. [2023-11-10 11:38:21,929 INFO L140 encePairwiseOnDemand]: 119/136 looper letters, 127 selfloop transitions, 56 changer transitions 0/283 dead transitions. [2023-11-10 11:38:21,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 283 transitions, 2192 flow [2023-11-10 11:38:21,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:38:21,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:38:21,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1418 transitions. [2023-11-10 11:38:21,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8020361990950227 [2023-11-10 11:38:21,932 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1418 transitions. [2023-11-10 11:38:21,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1418 transitions. [2023-11-10 11:38:21,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:38:21,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1418 transitions. [2023-11-10 11:38:21,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 109.07692307692308) internal successors, (1418), 13 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:21,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:21,938 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:21,938 INFO L175 Difference]: Start difference. First operand has 158 places, 157 transitions, 893 flow. Second operand 13 states and 1418 transitions. [2023-11-10 11:38:21,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 283 transitions, 2192 flow [2023-11-10 11:38:22,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 283 transitions, 2190 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-10 11:38:22,133 INFO L231 Difference]: Finished difference. Result has 181 places, 194 transitions, 1644 flow [2023-11-10 11:38:22,133 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=891, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1644, PETRI_PLACES=181, PETRI_TRANSITIONS=194} [2023-11-10 11:38:22,134 INFO L281 CegarLoopForPetriNet]: 142 programPoint places, 39 predicate places. [2023-11-10 11:38:22,134 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 194 transitions, 1644 flow [2023-11-10 11:38:22,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 101.28571428571429) internal successors, (709), 7 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:22,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:38:22,135 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:38:22,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-10 11:38:22,135 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:38:22,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:38:22,135 INFO L85 PathProgramCache]: Analyzing trace with hash -43258341, now seen corresponding path program 1 times [2023-11-10 11:38:22,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:38:22,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564200881] [2023-11-10 11:38:22,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:38:22,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:38:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:38:22,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:38:22,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:38:22,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564200881] [2023-11-10 11:38:22,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564200881] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:38:22,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:38:22,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:38:22,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034475947] [2023-11-10 11:38:22,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:38:22,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:38:22,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:38:22,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:38:22,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:38:22,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2023-11-10 11:38:22,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 194 transitions, 1644 flow. Second operand has 7 states, 7 states have (on average 108.28571428571429) internal successors, (758), 7 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:22,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:38:22,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2023-11-10 11:38:22,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:38:30,693 INFO L124 PetriNetUnfolderBase]: 33336/60182 cut-off events. [2023-11-10 11:38:30,693 INFO L125 PetriNetUnfolderBase]: For 175691/201467 co-relation queries the response was YES. [2023-11-10 11:38:31,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198735 conditions, 60182 events. 33336/60182 cut-off events. For 175691/201467 co-relation queries the response was YES. Maximal size of possible extension queue 3548. Compared 617294 event pairs, 1477 based on Foata normal form. 1801/60110 useless extension candidates. Maximal degree in co-relation 198623. Up to 12368 conditions per place. [2023-11-10 11:38:31,403 INFO L140 encePairwiseOnDemand]: 125/136 looper letters, 151 selfloop transitions, 38 changer transitions 11/341 dead transitions. [2023-11-10 11:38:31,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 341 transitions, 3238 flow [2023-11-10 11:38:31,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:38:31,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:38:31,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1524 transitions. [2023-11-10 11:38:31,408 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8619909502262444 [2023-11-10 11:38:31,408 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1524 transitions. [2023-11-10 11:38:31,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1524 transitions. [2023-11-10 11:38:31,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:38:31,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1524 transitions. [2023-11-10 11:38:31,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.23076923076923) internal successors, (1524), 13 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:31,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:31,414 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:31,414 INFO L175 Difference]: Start difference. First operand has 181 places, 194 transitions, 1644 flow. Second operand 13 states and 1524 transitions. [2023-11-10 11:38:31,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 341 transitions, 3238 flow [2023-11-10 11:38:33,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 341 transitions, 3212 flow, removed 13 selfloop flow, removed 0 redundant places. [2023-11-10 11:38:33,294 INFO L231 Difference]: Finished difference. Result has 199 places, 208 transitions, 1803 flow [2023-11-10 11:38:33,295 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1618, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1803, PETRI_PLACES=199, PETRI_TRANSITIONS=208} [2023-11-10 11:38:33,295 INFO L281 CegarLoopForPetriNet]: 142 programPoint places, 57 predicate places. [2023-11-10 11:38:33,295 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 208 transitions, 1803 flow [2023-11-10 11:38:33,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.28571428571429) internal successors, (758), 7 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:33,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:38:33,296 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:38:33,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-10 11:38:33,296 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:38:33,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:38:33,296 INFO L85 PathProgramCache]: Analyzing trace with hash 332200518, now seen corresponding path program 1 times [2023-11-10 11:38:33,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:38:33,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519586153] [2023-11-10 11:38:33,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:38:33,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:38:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:38:33,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:38:33,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:38:33,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519586153] [2023-11-10 11:38:33,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519586153] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:38:33,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:38:33,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:38:33,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573274747] [2023-11-10 11:38:33,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:38:33,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:38:33,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:38:33,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:38:33,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:38:33,586 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 136 [2023-11-10 11:38:33,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 208 transitions, 1803 flow. Second operand has 7 states, 7 states have (on average 99.85714285714286) internal successors, (699), 7 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:33,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:38:33,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 136 [2023-11-10 11:38:33,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:38:37,902 INFO L124 PetriNetUnfolderBase]: 10171/30055 cut-off events. [2023-11-10 11:38:37,902 INFO L125 PetriNetUnfolderBase]: For 152875/175629 co-relation queries the response was YES. [2023-11-10 11:38:38,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117210 conditions, 30055 events. 10171/30055 cut-off events. For 152875/175629 co-relation queries the response was YES. Maximal size of possible extension queue 3057. Compared 408385 event pairs, 568 based on Foata normal form. 582/28796 useless extension candidates. Maximal degree in co-relation 117083. Up to 6580 conditions per place. [2023-11-10 11:38:38,353 INFO L140 encePairwiseOnDemand]: 118/136 looper letters, 127 selfloop transitions, 104 changer transitions 21/370 dead transitions. [2023-11-10 11:38:38,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 370 transitions, 4171 flow [2023-11-10 11:38:38,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-10 11:38:38,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-10 11:38:38,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1194 transitions. [2023-11-10 11:38:38,356 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7981283422459893 [2023-11-10 11:38:38,356 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1194 transitions. [2023-11-10 11:38:38,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1194 transitions. [2023-11-10 11:38:38,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:38:38,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1194 transitions. [2023-11-10 11:38:38,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 108.54545454545455) internal successors, (1194), 11 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:38,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 136.0) internal successors, (1632), 12 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:38,360 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 136.0) internal successors, (1632), 12 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:38,360 INFO L175 Difference]: Start difference. First operand has 199 places, 208 transitions, 1803 flow. Second operand 11 states and 1194 transitions. [2023-11-10 11:38:38,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 370 transitions, 4171 flow [2023-11-10 11:38:43,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 370 transitions, 4076 flow, removed 38 selfloop flow, removed 4 redundant places. [2023-11-10 11:38:43,535 INFO L231 Difference]: Finished difference. Result has 214 places, 275 transitions, 3263 flow [2023-11-10 11:38:43,535 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1708, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3263, PETRI_PLACES=214, PETRI_TRANSITIONS=275} [2023-11-10 11:38:43,536 INFO L281 CegarLoopForPetriNet]: 142 programPoint places, 72 predicate places. [2023-11-10 11:38:43,536 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 275 transitions, 3263 flow [2023-11-10 11:38:43,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 99.85714285714286) internal successors, (699), 7 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:43,536 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:38:43,536 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:38:43,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-10 11:38:43,536 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:38:43,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:38:43,537 INFO L85 PathProgramCache]: Analyzing trace with hash -164824690, now seen corresponding path program 2 times [2023-11-10 11:38:43,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:38:43,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787927813] [2023-11-10 11:38:43,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:38:43,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:38:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:38:43,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:38:43,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:38:43,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787927813] [2023-11-10 11:38:43,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787927813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:38:43,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:38:43,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 11:38:43,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070046779] [2023-11-10 11:38:43,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:38:43,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:38:43,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:38:43,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:38:43,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-10 11:38:43,719 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2023-11-10 11:38:43,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 275 transitions, 3263 flow. Second operand has 8 states, 8 states have (on average 108.25) internal successors, (866), 8 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:43,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:38:43,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2023-11-10 11:38:43,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:38:56,256 INFO L124 PetriNetUnfolderBase]: 41122/74181 cut-off events. [2023-11-10 11:38:56,256 INFO L125 PetriNetUnfolderBase]: For 342879/390194 co-relation queries the response was YES. [2023-11-10 11:38:57,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274015 conditions, 74181 events. 41122/74181 cut-off events. For 342879/390194 co-relation queries the response was YES. Maximal size of possible extension queue 4674. Compared 789658 event pairs, 1564 based on Foata normal form. 1925/73487 useless extension candidates. Maximal degree in co-relation 273879. Up to 9250 conditions per place. [2023-11-10 11:38:57,733 INFO L140 encePairwiseOnDemand]: 125/136 looper letters, 145 selfloop transitions, 58 changer transitions 88/450 dead transitions. [2023-11-10 11:38:57,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 450 transitions, 5427 flow [2023-11-10 11:38:57,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-10 11:38:57,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-10 11:38:57,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1878 transitions. [2023-11-10 11:38:57,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8630514705882353 [2023-11-10 11:38:57,748 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1878 transitions. [2023-11-10 11:38:57,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1878 transitions. [2023-11-10 11:38:57,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:38:57,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1878 transitions. [2023-11-10 11:38:57,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 117.375) internal successors, (1878), 16 states have internal predecessors, (1878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:57,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 136.0) internal successors, (2312), 17 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:57,782 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 136.0) internal successors, (2312), 17 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:57,782 INFO L175 Difference]: Start difference. First operand has 214 places, 275 transitions, 3263 flow. Second operand 16 states and 1878 transitions. [2023-11-10 11:38:57,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 450 transitions, 5427 flow [2023-11-10 11:39:12,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 450 transitions, 5235 flow, removed 89 selfloop flow, removed 1 redundant places. [2023-11-10 11:39:12,896 INFO L231 Difference]: Finished difference. Result has 232 places, 253 transitions, 2774 flow [2023-11-10 11:39:12,897 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=2801, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2774, PETRI_PLACES=232, PETRI_TRANSITIONS=253} [2023-11-10 11:39:12,897 INFO L281 CegarLoopForPetriNet]: 142 programPoint places, 90 predicate places. [2023-11-10 11:39:12,897 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 253 transitions, 2774 flow [2023-11-10 11:39:12,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 108.25) internal successors, (866), 8 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:39:12,898 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:39:12,898 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:39:12,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-10 11:39:12,898 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:39:12,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:39:12,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1091619047, now seen corresponding path program 1 times [2023-11-10 11:39:12,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:39:12,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474298554] [2023-11-10 11:39:12,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:39:12,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:39:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:39:13,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:39:13,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:39:13,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474298554] [2023-11-10 11:39:13,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474298554] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:39:13,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:39:13,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 11:39:13,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150795704] [2023-11-10 11:39:13,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:39:13,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:39:13,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:39:13,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:39:13,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-10 11:39:13,128 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 136 [2023-11-10 11:39:13,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 253 transitions, 2774 flow. Second operand has 8 states, 8 states have (on average 101.375) internal successors, (811), 8 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:39:13,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:39:13,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 136 [2023-11-10 11:39:13,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:39:19,831 INFO L124 PetriNetUnfolderBase]: 17144/52799 cut-off events. [2023-11-10 11:39:19,832 INFO L125 PetriNetUnfolderBase]: For 279078/293320 co-relation queries the response was YES. [2023-11-10 11:39:21,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210099 conditions, 52799 events. 17144/52799 cut-off events. For 279078/293320 co-relation queries the response was YES. Maximal size of possible extension queue 6956. Compared 836174 event pairs, 594 based on Foata normal form. 34/49394 useless extension candidates. Maximal degree in co-relation 209952. Up to 11218 conditions per place. [2023-11-10 11:39:21,354 INFO L140 encePairwiseOnDemand]: 119/136 looper letters, 102 selfloop transitions, 76 changer transitions 57/382 dead transitions. [2023-11-10 11:39:21,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 382 transitions, 4623 flow [2023-11-10 11:39:21,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-10 11:39:21,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-10 11:39:21,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1215 transitions. [2023-11-10 11:39:21,357 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8121657754010695 [2023-11-10 11:39:21,357 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1215 transitions. [2023-11-10 11:39:21,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1215 transitions. [2023-11-10 11:39:21,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:39:21,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1215 transitions. [2023-11-10 11:39:21,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 110.45454545454545) internal successors, (1215), 11 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:39:21,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 136.0) internal successors, (1632), 12 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:39:21,360 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 136.0) internal successors, (1632), 12 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:39:21,360 INFO L175 Difference]: Start difference. First operand has 232 places, 253 transitions, 2774 flow. Second operand 11 states and 1215 transitions. [2023-11-10 11:39:21,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 382 transitions, 4623 flow [2023-11-10 11:40:06,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 382 transitions, 4092 flow, removed 223 selfloop flow, removed 19 redundant places. [2023-11-10 11:40:06,802 INFO L231 Difference]: Finished difference. Result has 218 places, 274 transitions, 3119 flow [2023-11-10 11:40:06,802 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=2367, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3119, PETRI_PLACES=218, PETRI_TRANSITIONS=274} [2023-11-10 11:40:06,804 INFO L281 CegarLoopForPetriNet]: 142 programPoint places, 76 predicate places. [2023-11-10 11:40:06,804 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 274 transitions, 3119 flow [2023-11-10 11:40:06,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 101.375) internal successors, (811), 8 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:40:06,804 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:40:06,804 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:40:06,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-10 11:40:06,804 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:40:06,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:40:06,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1056069067, now seen corresponding path program 2 times [2023-11-10 11:40:06,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:40:06,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852944077] [2023-11-10 11:40:06,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:40:06,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:40:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:40:07,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:40:07,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:40:07,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852944077] [2023-11-10 11:40:07,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852944077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:40:07,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:40:07,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-10 11:40:07,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052767727] [2023-11-10 11:40:07,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:40:07,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-10 11:40:07,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:40:07,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-10 11:40:07,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-10 11:40:07,022 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2023-11-10 11:40:07,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 274 transitions, 3119 flow. Second operand has 9 states, 9 states have (on average 108.33333333333333) internal successors, (975), 9 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:40:07,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:40:07,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2023-11-10 11:40:07,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand