/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:09:45,927 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:09:45,985 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 [2023-12-09 15:09:46,013 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:09:46,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:09:46,014 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:09:46,015 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:09:46,015 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:09:46,015 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:09:46,018 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:09:46,019 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:09:46,019 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:09:46,019 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:09:46,020 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:09:46,020 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:09:46,020 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:09:46,021 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:09:46,021 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:09:46,021 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:09:46,021 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:09:46,021 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:09:46,022 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:09:46,022 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:09:46,022 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:09:46,022 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:09:46,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:09:46,023 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:09:46,023 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:09:46,023 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:09:46,023 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:09:46,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:09:46,024 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:09:46,024 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:09:46,024 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:09:46,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:09:46,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:09:46,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:09:46,204 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:09:46,204 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:09:46,205 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2023-12-09 15:09:47,085 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:09:47,237 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:09:47,238 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2023-12-09 15:09:47,244 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95cedc671/dedb2487d8b44173b5b4f13b66df9165/FLAG3fd5a06ee [2023-12-09 15:09:47,259 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95cedc671/dedb2487d8b44173b5b4f13b66df9165 [2023-12-09 15:09:47,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:09:47,263 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:09:47,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:09:47,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:09:47,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:09:47,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:09:47" (1/1) ... [2023-12-09 15:09:47,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d42410e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:47, skipping insertion in model container [2023-12-09 15:09:47,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:09:47" (1/1) ... [2023-12-09 15:09:47,289 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:09:47,387 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c[2521,2534] [2023-12-09 15:09:47,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:09:47,401 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:09:47,414 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c[2521,2534] [2023-12-09 15:09:47,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:09:47,429 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:09:47,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:47 WrapperNode [2023-12-09 15:09:47,429 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:09:47,430 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:09:47,430 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:09:47,430 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:09:47,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:47" (1/1) ... [2023-12-09 15:09:47,439 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:47" (1/1) ... [2023-12-09 15:09:47,456 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 149 [2023-12-09 15:09:47,456 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:09:47,456 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:09:47,457 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:09:47,457 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:09:47,466 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:47" (1/1) ... [2023-12-09 15:09:47,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:47" (1/1) ... [2023-12-09 15:09:47,475 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:47" (1/1) ... [2023-12-09 15:09:47,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:47" (1/1) ... [2023-12-09 15:09:47,479 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:47" (1/1) ... [2023-12-09 15:09:47,480 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:47" (1/1) ... [2023-12-09 15:09:47,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:47" (1/1) ... [2023-12-09 15:09:47,483 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:47" (1/1) ... [2023-12-09 15:09:47,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:09:47,485 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:09:47,485 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:09:47,485 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:09:47,486 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:47" (1/1) ... [2023-12-09 15:09:47,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:09:47,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:09:47,517 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) [2023-12-09 15:09:47,526 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 [2023-12-09 15:09:47,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:09:47,543 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:09:47,543 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:09:47,543 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:09:47,543 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:09:47,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:09:47,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:09:47,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:09:47,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:09:47,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:09:47,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:09:47,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:09:47,545 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 15:09:47,645 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:09:47,646 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:09:47,884 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:09:47,899 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:09:47,899 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 15:09:47,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:09:47 BoogieIcfgContainer [2023-12-09 15:09:47,900 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:09:47,902 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:09:47,902 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:09:47,903 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:09:47,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:09:47" (1/3) ... [2023-12-09 15:09:47,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c2869c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:09:47, skipping insertion in model container [2023-12-09 15:09:47,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:47" (2/3) ... [2023-12-09 15:09:47,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c2869c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:09:47, skipping insertion in model container [2023-12-09 15:09:47,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:09:47" (3/3) ... [2023-12-09 15:09:47,905 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2023-12-09 15:09:47,916 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:09:47,916 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:09:47,916 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:09:47,989 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-09 15:09:48,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 186 places, 194 transitions, 402 flow [2023-12-09 15:09:48,072 INFO L124 PetriNetUnfolderBase]: 15/192 cut-off events. [2023-12-09 15:09:48,072 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:09:48,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 192 events. 15/192 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 322 event pairs, 0 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2023-12-09 15:09:48,079 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 194 transitions, 402 flow [2023-12-09 15:09:48,083 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 175 places, 183 transitions, 378 flow [2023-12-09 15:09:48,089 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:09:48,093 INFO L362 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@446b5c3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:09:48,093 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-09 15:09:48,123 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:09:48,123 INFO L124 PetriNetUnfolderBase]: 15/182 cut-off events. [2023-12-09 15:09:48,123 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:09:48,123 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:48,124 INFO L233 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] [2023-12-09 15:09:48,124 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:09:48,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:48,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1468236723, now seen corresponding path program 1 times [2023-12-09 15:09:48,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:48,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090486618] [2023-12-09 15:09:48,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:48,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:48,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:09:48,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:48,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090486618] [2023-12-09 15:09:48,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090486618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:48,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:48,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:09:48,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513200989] [2023-12-09 15:09:48,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:48,965 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:09:48,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:48,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:09:48,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:09:49,002 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:09:49,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 183 transitions, 378 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:49,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:49,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:09:49,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:49,596 INFO L124 PetriNetUnfolderBase]: 158/1000 cut-off events. [2023-12-09 15:09:49,596 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2023-12-09 15:09:49,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1419 conditions, 1000 events. 158/1000 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 6854 event pairs, 48 based on Foata normal form. 45/935 useless extension candidates. Maximal degree in co-relation 1066. Up to 145 conditions per place. [2023-12-09 15:09:49,607 INFO L140 encePairwiseOnDemand]: 170/194 looper letters, 116 selfloop transitions, 5 changer transitions 42/292 dead transitions. [2023-12-09 15:09:49,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 292 transitions, 952 flow [2023-12-09 15:09:49,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:09:49,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:09:49,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2975 transitions. [2023-12-09 15:09:49,624 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7667525773195877 [2023-12-09 15:09:49,624 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2975 transitions. [2023-12-09 15:09:49,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2975 transitions. [2023-12-09 15:09:49,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:49,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2975 transitions. [2023-12-09 15:09:49,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 148.75) internal successors, (2975), 20 states have internal predecessors, (2975), 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) [2023-12-09 15:09:49,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 194.0) internal successors, (4074), 21 states have internal predecessors, (4074), 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) [2023-12-09 15:09:49,648 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 194.0) internal successors, (4074), 21 states have internal predecessors, (4074), 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) [2023-12-09 15:09:49,652 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 19 predicate places. [2023-12-09 15:09:49,653 INFO L500 AbstractCegarLoop]: Abstraction has has 194 places, 292 transitions, 952 flow [2023-12-09 15:09:49,654 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:49,654 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:49,654 INFO L233 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] [2023-12-09 15:09:49,654 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:09:49,655 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:09:49,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:49,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1505551039, now seen corresponding path program 2 times [2023-12-09 15:09:49,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:49,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5310558] [2023-12-09 15:09:49,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:49,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:49,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:09:49,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:49,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5310558] [2023-12-09 15:09:49,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5310558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:49,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:49,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:09:49,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268652891] [2023-12-09 15:09:49,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:49,936 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:09:49,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:49,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:09:49,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:09:49,939 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:09:49,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 292 transitions, 952 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:49,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:49,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:09:49,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:50,399 INFO L124 PetriNetUnfolderBase]: 216/1475 cut-off events. [2023-12-09 15:09:50,400 INFO L125 PetriNetUnfolderBase]: For 385/583 co-relation queries the response was YES. [2023-12-09 15:09:50,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2834 conditions, 1475 events. 216/1475 cut-off events. For 385/583 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 11707 event pairs, 39 based on Foata normal form. 24/1374 useless extension candidates. Maximal degree in co-relation 1787. Up to 271 conditions per place. [2023-12-09 15:09:50,407 INFO L140 encePairwiseOnDemand]: 177/194 looper letters, 244 selfloop transitions, 20 changer transitions 89/482 dead transitions. [2023-12-09 15:09:50,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 482 transitions, 2478 flow [2023-12-09 15:09:50,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:09:50,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:09:50,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2952 transitions. [2023-12-09 15:09:50,412 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7608247422680412 [2023-12-09 15:09:50,412 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2952 transitions. [2023-12-09 15:09:50,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2952 transitions. [2023-12-09 15:09:50,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:50,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2952 transitions. [2023-12-09 15:09:50,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 147.6) internal successors, (2952), 20 states have internal predecessors, (2952), 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) [2023-12-09 15:09:50,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 194.0) internal successors, (4074), 21 states have internal predecessors, (4074), 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) [2023-12-09 15:09:50,445 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 194.0) internal successors, (4074), 21 states have internal predecessors, (4074), 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) [2023-12-09 15:09:50,446 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 38 predicate places. [2023-12-09 15:09:50,446 INFO L500 AbstractCegarLoop]: Abstraction has has 213 places, 482 transitions, 2478 flow [2023-12-09 15:09:50,446 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:50,446 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:50,446 INFO L233 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] [2023-12-09 15:09:50,447 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:09:50,447 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:09:50,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:50,447 INFO L85 PathProgramCache]: Analyzing trace with hash 2012501867, now seen corresponding path program 3 times [2023-12-09 15:09:50,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:50,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556577802] [2023-12-09 15:09:50,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:50,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:50,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:09:50,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:50,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556577802] [2023-12-09 15:09:50,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556577802] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:50,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:50,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:09:50,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289666713] [2023-12-09 15:09:50,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:50,690 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:09:50,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:50,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:09:50,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:09:50,692 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:09:50,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 482 transitions, 2478 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:50,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:50,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:09:50,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:51,089 INFO L124 PetriNetUnfolderBase]: 227/1531 cut-off events. [2023-12-09 15:09:51,090 INFO L125 PetriNetUnfolderBase]: For 803/1361 co-relation queries the response was YES. [2023-12-09 15:09:51,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3683 conditions, 1531 events. 227/1531 cut-off events. For 803/1361 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 12288 event pairs, 39 based on Foata normal form. 32/1436 useless extension candidates. Maximal degree in co-relation 2548. Up to 293 conditions per place. [2023-12-09 15:09:51,099 INFO L140 encePairwiseOnDemand]: 179/194 looper letters, 253 selfloop transitions, 28 changer transitions 119/529 dead transitions. [2023-12-09 15:09:51,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 529 transitions, 3575 flow [2023-12-09 15:09:51,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:09:51,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:09:51,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2496 transitions. [2023-12-09 15:09:51,103 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7568223165554882 [2023-12-09 15:09:51,103 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2496 transitions. [2023-12-09 15:09:51,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2496 transitions. [2023-12-09 15:09:51,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:51,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2496 transitions. [2023-12-09 15:09:51,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 146.8235294117647) internal successors, (2496), 17 states have internal predecessors, (2496), 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) [2023-12-09 15:09:51,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:09:51,113 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:09:51,114 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 54 predicate places. [2023-12-09 15:09:51,114 INFO L500 AbstractCegarLoop]: Abstraction has has 229 places, 529 transitions, 3575 flow [2023-12-09 15:09:51,114 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:51,114 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:51,114 INFO L233 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] [2023-12-09 15:09:51,115 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:09:51,115 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:09:51,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:51,118 INFO L85 PathProgramCache]: Analyzing trace with hash 539285895, now seen corresponding path program 4 times [2023-12-09 15:09:51,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:51,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405101633] [2023-12-09 15:09:51,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:51,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:51,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:09:51,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:51,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405101633] [2023-12-09 15:09:51,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405101633] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:51,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:51,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:09:51,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039128976] [2023-12-09 15:09:51,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:51,355 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:09:51,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:51,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:09:51,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:09:51,358 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:09:51,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 529 transitions, 3575 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:51,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:51,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:09:51,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:51,753 INFO L124 PetriNetUnfolderBase]: 228/1617 cut-off events. [2023-12-09 15:09:51,753 INFO L125 PetriNetUnfolderBase]: For 1507/2508 co-relation queries the response was YES. [2023-12-09 15:09:51,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4676 conditions, 1617 events. 228/1617 cut-off events. For 1507/2508 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 13363 event pairs, 39 based on Foata normal form. 43/1528 useless extension candidates. Maximal degree in co-relation 3085. Up to 340 conditions per place. [2023-12-09 15:09:51,761 INFO L140 encePairwiseOnDemand]: 179/194 looper letters, 274 selfloop transitions, 20 changer transitions 156/579 dead transitions. [2023-12-09 15:09:51,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 579 transitions, 4896 flow [2023-12-09 15:09:51,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:09:51,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:09:51,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2800 transitions. [2023-12-09 15:09:51,766 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.759631036353771 [2023-12-09 15:09:51,766 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2800 transitions. [2023-12-09 15:09:51,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2800 transitions. [2023-12-09 15:09:51,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:51,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2800 transitions. [2023-12-09 15:09:51,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 147.3684210526316) internal successors, (2800), 19 states have internal predecessors, (2800), 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) [2023-12-09 15:09:51,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 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) [2023-12-09 15:09:51,777 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 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) [2023-12-09 15:09:51,778 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 72 predicate places. [2023-12-09 15:09:51,779 INFO L500 AbstractCegarLoop]: Abstraction has has 247 places, 579 transitions, 4896 flow [2023-12-09 15:09:51,779 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:51,780 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:51,780 INFO L233 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] [2023-12-09 15:09:51,780 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:09:51,780 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:09:51,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:51,781 INFO L85 PathProgramCache]: Analyzing trace with hash 303984767, now seen corresponding path program 5 times [2023-12-09 15:09:51,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:51,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190666695] [2023-12-09 15:09:51,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:51,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:52,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:09:52,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:52,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190666695] [2023-12-09 15:09:52,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190666695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:52,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:52,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:09:52,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564369306] [2023-12-09 15:09:52,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:52,023 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:09:52,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:52,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:09:52,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:09:52,025 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:09:52,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 579 transitions, 4896 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:52,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:52,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:09:52,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:52,418 INFO L124 PetriNetUnfolderBase]: 228/1616 cut-off events. [2023-12-09 15:09:52,418 INFO L125 PetriNetUnfolderBase]: For 2325/3655 co-relation queries the response was YES. [2023-12-09 15:09:52,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5401 conditions, 1616 events. 228/1616 cut-off events. For 2325/3655 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 13318 event pairs, 42 based on Foata normal form. 31/1517 useless extension candidates. Maximal degree in co-relation 3247. Up to 343 conditions per place. [2023-12-09 15:09:52,428 INFO L140 encePairwiseOnDemand]: 179/194 looper letters, 248 selfloop transitions, 15 changer transitions 184/576 dead transitions. [2023-12-09 15:09:52,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 576 transitions, 5760 flow [2023-12-09 15:09:52,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:09:52,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:09:52,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2354 transitions. [2023-12-09 15:09:52,433 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7583762886597938 [2023-12-09 15:09:52,433 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2354 transitions. [2023-12-09 15:09:52,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2354 transitions. [2023-12-09 15:09:52,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:52,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2354 transitions. [2023-12-09 15:09:52,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 147.125) internal successors, (2354), 16 states have internal predecessors, (2354), 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) [2023-12-09 15:09:52,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 194.0) internal successors, (3298), 17 states have internal predecessors, (3298), 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) [2023-12-09 15:09:52,442 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 194.0) internal successors, (3298), 17 states have internal predecessors, (3298), 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) [2023-12-09 15:09:52,444 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 87 predicate places. [2023-12-09 15:09:52,444 INFO L500 AbstractCegarLoop]: Abstraction has has 262 places, 576 transitions, 5760 flow [2023-12-09 15:09:52,444 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:52,445 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:52,445 INFO L233 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] [2023-12-09 15:09:52,445 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:09:52,445 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:09:52,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:52,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1248232747, now seen corresponding path program 6 times [2023-12-09 15:09:52,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:52,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841631790] [2023-12-09 15:09:52,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:52,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:52,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:09:52,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:52,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841631790] [2023-12-09 15:09:52,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841631790] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:52,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:52,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:09:52,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723893495] [2023-12-09 15:09:52,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:52,697 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:09:52,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:52,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:09:52,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:09:52,699 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:09:52,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 576 transitions, 5760 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:52,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:52,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:09:52,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:53,160 INFO L124 PetriNetUnfolderBase]: 253/1894 cut-off events. [2023-12-09 15:09:53,160 INFO L125 PetriNetUnfolderBase]: For 3985/5825 co-relation queries the response was YES. [2023-12-09 15:09:53,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7253 conditions, 1894 events. 253/1894 cut-off events. For 3985/5825 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 16609 event pairs, 42 based on Foata normal form. 40/1796 useless extension candidates. Maximal degree in co-relation 3942. Up to 455 conditions per place. [2023-12-09 15:09:53,171 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 314 selfloop transitions, 17 changer transitions 224/684 dead transitions. [2023-12-09 15:09:53,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 684 transitions, 8199 flow [2023-12-09 15:09:53,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:09:53,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:09:53,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2959 transitions. [2023-12-09 15:09:53,179 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7626288659793814 [2023-12-09 15:09:53,179 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2959 transitions. [2023-12-09 15:09:53,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2959 transitions. [2023-12-09 15:09:53,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:53,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2959 transitions. [2023-12-09 15:09:53,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 147.95) internal successors, (2959), 20 states have internal predecessors, (2959), 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) [2023-12-09 15:09:53,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 194.0) internal successors, (4074), 21 states have internal predecessors, (4074), 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) [2023-12-09 15:09:53,200 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 194.0) internal successors, (4074), 21 states have internal predecessors, (4074), 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) [2023-12-09 15:09:53,202 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 106 predicate places. [2023-12-09 15:09:53,202 INFO L500 AbstractCegarLoop]: Abstraction has has 281 places, 684 transitions, 8199 flow [2023-12-09 15:09:53,202 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:53,202 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:53,202 INFO L233 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] [2023-12-09 15:09:53,203 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:09:53,203 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:09:53,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:53,203 INFO L85 PathProgramCache]: Analyzing trace with hash 274593253, now seen corresponding path program 7 times [2023-12-09 15:09:53,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:53,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976291197] [2023-12-09 15:09:53,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:53,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:53,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:09:53,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:53,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976291197] [2023-12-09 15:09:53,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976291197] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:53,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:53,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:09:53,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652401261] [2023-12-09 15:09:53,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:53,384 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:09:53,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:53,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:09:53,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:09:53,385 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:09:53,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 684 transitions, 8199 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:53,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:53,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:09:53,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:53,828 INFO L124 PetriNetUnfolderBase]: 260/1914 cut-off events. [2023-12-09 15:09:53,828 INFO L125 PetriNetUnfolderBase]: For 5064/6914 co-relation queries the response was YES. [2023-12-09 15:09:53,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8433 conditions, 1914 events. 260/1914 cut-off events. For 5064/6914 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 16934 event pairs, 44 based on Foata normal form. 47/1818 useless extension candidates. Maximal degree in co-relation 5074. Up to 485 conditions per place. [2023-12-09 15:09:53,841 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 318 selfloop transitions, 20 changer transitions 254/721 dead transitions. [2023-12-09 15:09:53,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 721 transitions, 9916 flow [2023-12-09 15:09:53,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:09:53,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:09:53,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2519 transitions. [2023-12-09 15:09:53,905 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7637962401455427 [2023-12-09 15:09:53,905 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2519 transitions. [2023-12-09 15:09:53,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2519 transitions. [2023-12-09 15:09:53,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:53,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2519 transitions. [2023-12-09 15:09:53,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 148.1764705882353) internal successors, (2519), 17 states have internal predecessors, (2519), 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) [2023-12-09 15:09:53,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:09:53,912 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:09:53,914 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 122 predicate places. [2023-12-09 15:09:53,914 INFO L500 AbstractCegarLoop]: Abstraction has has 297 places, 721 transitions, 9916 flow [2023-12-09 15:09:53,915 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:53,915 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:53,915 INFO L233 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] [2023-12-09 15:09:53,915 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:09:53,915 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:09:53,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:53,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1596042909, now seen corresponding path program 8 times [2023-12-09 15:09:53,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:53,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39987374] [2023-12-09 15:09:53,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:53,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:54,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:09:54,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:54,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39987374] [2023-12-09 15:09:54,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39987374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:54,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:54,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:09:54,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351908543] [2023-12-09 15:09:54,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:54,108 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:09:54,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:54,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:09:54,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:09:54,109 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:09:54,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 721 transitions, 9916 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:54,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:54,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:09:54,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:54,583 INFO L124 PetriNetUnfolderBase]: 261/2023 cut-off events. [2023-12-09 15:09:54,584 INFO L125 PetriNetUnfolderBase]: For 6967/9102 co-relation queries the response was YES. [2023-12-09 15:09:54,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9684 conditions, 2023 events. 261/2023 cut-off events. For 6967/9102 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 18282 event pairs, 39 based on Foata normal form. 32/1912 useless extension candidates. Maximal degree in co-relation 5059. Up to 508 conditions per place. [2023-12-09 15:09:54,593 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 317 selfloop transitions, 19 changer transitions 283/748 dead transitions. [2023-12-09 15:09:54,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 748 transitions, 11595 flow [2023-12-09 15:09:54,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:09:54,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:09:54,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2516 transitions. [2023-12-09 15:09:54,596 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7628865979381443 [2023-12-09 15:09:54,596 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2516 transitions. [2023-12-09 15:09:54,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2516 transitions. [2023-12-09 15:09:54,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:54,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2516 transitions. [2023-12-09 15:09:54,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 148.0) internal successors, (2516), 17 states have internal predecessors, (2516), 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) [2023-12-09 15:09:54,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:09:54,602 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:09:54,604 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 138 predicate places. [2023-12-09 15:09:54,604 INFO L500 AbstractCegarLoop]: Abstraction has has 313 places, 748 transitions, 11595 flow [2023-12-09 15:09:54,604 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:54,604 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:54,606 INFO L233 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] [2023-12-09 15:09:54,606 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 15:09:54,606 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:09:54,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:54,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1268584433, now seen corresponding path program 9 times [2023-12-09 15:09:54,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:54,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760029928] [2023-12-09 15:09:54,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:54,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:54,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:09:54,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:54,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760029928] [2023-12-09 15:09:54,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760029928] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:54,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:54,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:09:54,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834807068] [2023-12-09 15:09:54,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:54,782 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:09:54,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:54,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:09:54,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:09:54,783 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:09:54,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 748 transitions, 11595 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:54,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:54,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:09:54,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:55,328 INFO L124 PetriNetUnfolderBase]: 260/2026 cut-off events. [2023-12-09 15:09:55,328 INFO L125 PetriNetUnfolderBase]: For 8604/11012 co-relation queries the response was YES. [2023-12-09 15:09:55,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10812 conditions, 2026 events. 260/2026 cut-off events. For 8604/11012 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 18351 event pairs, 39 based on Foata normal form. 35/1916 useless extension candidates. Maximal degree in co-relation 6603. Up to 525 conditions per place. [2023-12-09 15:09:55,344 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 312 selfloop transitions, 12 changer transitions 315/768 dead transitions. [2023-12-09 15:09:55,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 768 transitions, 13239 flow [2023-12-09 15:09:55,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:09:55,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:09:55,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2658 transitions. [2023-12-09 15:09:55,348 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.761168384879725 [2023-12-09 15:09:55,348 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2658 transitions. [2023-12-09 15:09:55,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2658 transitions. [2023-12-09 15:09:55,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:55,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2658 transitions. [2023-12-09 15:09:55,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 147.66666666666666) internal successors, (2658), 18 states have internal predecessors, (2658), 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) [2023-12-09 15:09:55,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 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) [2023-12-09 15:09:55,355 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 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) [2023-12-09 15:09:55,355 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 155 predicate places. [2023-12-09 15:09:55,356 INFO L500 AbstractCegarLoop]: Abstraction has has 330 places, 768 transitions, 13239 flow [2023-12-09 15:09:55,356 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:55,356 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:55,356 INFO L233 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] [2023-12-09 15:09:55,356 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 15:09:55,356 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:09:55,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:55,357 INFO L85 PathProgramCache]: Analyzing trace with hash 789061403, now seen corresponding path program 10 times [2023-12-09 15:09:55,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:55,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206718083] [2023-12-09 15:09:55,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:55,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:55,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:09:55,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:55,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206718083] [2023-12-09 15:09:55,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206718083] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:55,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:55,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:09:55,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042799619] [2023-12-09 15:09:55,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:55,565 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:09:55,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:55,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:09:55,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:09:55,568 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:09:55,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 768 transitions, 13239 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:55,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:55,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:09:55,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:56,179 INFO L124 PetriNetUnfolderBase]: 262/2126 cut-off events. [2023-12-09 15:09:56,179 INFO L125 PetriNetUnfolderBase]: For 11032/13588 co-relation queries the response was YES. [2023-12-09 15:09:56,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12168 conditions, 2126 events. 262/2126 cut-off events. For 11032/13588 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 19543 event pairs, 42 based on Foata normal form. 89/2069 useless extension candidates. Maximal degree in co-relation 6098. Up to 547 conditions per place. [2023-12-09 15:09:56,187 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 308 selfloop transitions, 12 changer transitions 347/796 dead transitions. [2023-12-09 15:09:56,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 796 transitions, 15142 flow [2023-12-09 15:09:56,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:09:56,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:09:56,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2960 transitions. [2023-12-09 15:09:56,191 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7628865979381443 [2023-12-09 15:09:56,191 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2960 transitions. [2023-12-09 15:09:56,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2960 transitions. [2023-12-09 15:09:56,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:56,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2960 transitions. [2023-12-09 15:09:56,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 148.0) internal successors, (2960), 20 states have internal predecessors, (2960), 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) [2023-12-09 15:09:56,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 194.0) internal successors, (4074), 21 states have internal predecessors, (4074), 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) [2023-12-09 15:09:56,198 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 194.0) internal successors, (4074), 21 states have internal predecessors, (4074), 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) [2023-12-09 15:09:56,199 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 174 predicate places. [2023-12-09 15:09:56,199 INFO L500 AbstractCegarLoop]: Abstraction has has 349 places, 796 transitions, 15142 flow [2023-12-09 15:09:56,199 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:56,199 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:56,199 INFO L233 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] [2023-12-09 15:09:56,200 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-09 15:09:56,200 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:09:56,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:56,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1195969311, now seen corresponding path program 11 times [2023-12-09 15:09:56,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:56,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848823176] [2023-12-09 15:09:56,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:56,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:56,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:09:56,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:56,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848823176] [2023-12-09 15:09:56,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848823176] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:56,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:56,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:09:56,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924415245] [2023-12-09 15:09:56,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:56,356 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:09:56,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:56,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:09:56,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:09:56,357 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:09:56,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 796 transitions, 15142 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:56,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:56,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:09:56,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:56,839 INFO L124 PetriNetUnfolderBase]: 262/2102 cut-off events. [2023-12-09 15:09:56,839 INFO L125 PetriNetUnfolderBase]: For 13343/16106 co-relation queries the response was YES. [2023-12-09 15:09:56,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13103 conditions, 2102 events. 262/2102 cut-off events. For 13343/16106 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 19319 event pairs, 39 based on Foata normal form. 49/2005 useless extension candidates. Maximal degree in co-relation 6565. Up to 544 conditions per place. [2023-12-09 15:09:56,851 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 282 selfloop transitions, 6 changer transitions 376/793 dead transitions. [2023-12-09 15:09:56,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 793 transitions, 16404 flow [2023-12-09 15:09:56,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:09:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:09:56,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2658 transitions. [2023-12-09 15:09:56,854 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.761168384879725 [2023-12-09 15:09:56,855 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2658 transitions. [2023-12-09 15:09:56,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2658 transitions. [2023-12-09 15:09:56,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:56,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2658 transitions. [2023-12-09 15:09:56,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 147.66666666666666) internal successors, (2658), 18 states have internal predecessors, (2658), 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) [2023-12-09 15:09:56,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 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) [2023-12-09 15:09:56,862 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 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) [2023-12-09 15:09:56,863 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 191 predicate places. [2023-12-09 15:09:56,863 INFO L500 AbstractCegarLoop]: Abstraction has has 366 places, 793 transitions, 16404 flow [2023-12-09 15:09:56,863 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:56,863 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:56,863 INFO L233 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] [2023-12-09 15:09:56,863 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-09 15:09:56,864 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:09:56,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:56,864 INFO L85 PathProgramCache]: Analyzing trace with hash -53780107, now seen corresponding path program 12 times [2023-12-09 15:09:56,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:56,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763950929] [2023-12-09 15:09:56,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:56,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:57,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:09:57,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:57,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763950929] [2023-12-09 15:09:57,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763950929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:57,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:57,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:09:57,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751055498] [2023-12-09 15:09:57,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:57,109 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:09:57,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:57,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:09:57,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:09:57,110 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:09:57,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 793 transitions, 16404 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:57,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:57,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:09:57,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:57,596 INFO L124 PetriNetUnfolderBase]: 271/2165 cut-off events. [2023-12-09 15:09:57,597 INFO L125 PetriNetUnfolderBase]: For 16548/19742 co-relation queries the response was YES. [2023-12-09 15:09:57,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14688 conditions, 2165 events. 271/2165 cut-off events. For 16548/19742 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 20060 event pairs, 39 based on Foata normal form. 58/2075 useless extension candidates. Maximal degree in co-relation 7276. Up to 576 conditions per place. [2023-12-09 15:09:57,610 INFO L140 encePairwiseOnDemand]: 179/194 looper letters, 277 selfloop transitions, 22 changer transitions 406/834 dead transitions. [2023-12-09 15:09:57,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 834 transitions, 18813 flow [2023-12-09 15:09:57,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:09:57,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:09:57,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2356 transitions. [2023-12-09 15:09:57,612 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.759020618556701 [2023-12-09 15:09:57,612 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2356 transitions. [2023-12-09 15:09:57,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2356 transitions. [2023-12-09 15:09:57,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:57,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2356 transitions. [2023-12-09 15:09:57,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 147.25) internal successors, (2356), 16 states have internal predecessors, (2356), 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) [2023-12-09 15:09:57,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 194.0) internal successors, (3298), 17 states have internal predecessors, (3298), 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) [2023-12-09 15:09:57,618 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 194.0) internal successors, (3298), 17 states have internal predecessors, (3298), 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) [2023-12-09 15:09:57,619 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 206 predicate places. [2023-12-09 15:09:57,619 INFO L500 AbstractCegarLoop]: Abstraction has has 381 places, 834 transitions, 18813 flow [2023-12-09 15:09:57,619 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:57,619 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:57,619 INFO L233 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] [2023-12-09 15:09:57,620 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-09 15:09:57,621 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:09:57,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:57,621 INFO L85 PathProgramCache]: Analyzing trace with hash 909102869, now seen corresponding path program 13 times [2023-12-09 15:09:57,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:57,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486640937] [2023-12-09 15:09:57,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:57,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:57,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:09:57,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:57,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486640937] [2023-12-09 15:09:57,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486640937] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:57,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:57,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:09:57,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909615949] [2023-12-09 15:09:57,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:57,792 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:09:57,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:57,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:09:57,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:09:57,794 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:09:57,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 834 transitions, 18813 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:57,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:57,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:09:57,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:58,362 INFO L124 PetriNetUnfolderBase]: 276/2235 cut-off events. [2023-12-09 15:09:58,362 INFO L125 PetriNetUnfolderBase]: For 17375/20145 co-relation queries the response was YES. [2023-12-09 15:09:58,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16262 conditions, 2235 events. 276/2235 cut-off events. For 17375/20145 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 20965 event pairs, 47 based on Foata normal form. 25/2108 useless extension candidates. Maximal degree in co-relation 7995. Up to 601 conditions per place. [2023-12-09 15:09:58,379 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 281 selfloop transitions, 24 changer transitions 435/869 dead transitions. [2023-12-09 15:09:58,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 869 transitions, 21212 flow [2023-12-09 15:09:58,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:09:58,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:09:58,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2516 transitions. [2023-12-09 15:09:58,382 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7628865979381443 [2023-12-09 15:09:58,382 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2516 transitions. [2023-12-09 15:09:58,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2516 transitions. [2023-12-09 15:09:58,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:58,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2516 transitions. [2023-12-09 15:09:58,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 148.0) internal successors, (2516), 17 states have internal predecessors, (2516), 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) [2023-12-09 15:09:58,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:09:58,388 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:09:58,389 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 222 predicate places. [2023-12-09 15:09:58,389 INFO L500 AbstractCegarLoop]: Abstraction has has 397 places, 869 transitions, 21212 flow [2023-12-09 15:09:58,389 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:58,389 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:58,389 INFO L233 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] [2023-12-09 15:09:58,389 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-09 15:09:58,390 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:09:58,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:58,390 INFO L85 PathProgramCache]: Analyzing trace with hash 984828691, now seen corresponding path program 14 times [2023-12-09 15:09:58,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:58,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041734527] [2023-12-09 15:09:58,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:58,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:58,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:09:58,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:58,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041734527] [2023-12-09 15:09:58,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041734527] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:58,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:58,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:09:58,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721904528] [2023-12-09 15:09:58,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:58,549 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:09:58,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:58,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:09:58,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:09:58,550 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:09:58,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 869 transitions, 21212 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:58,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:58,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:09:58,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:59,249 INFO L124 PetriNetUnfolderBase]: 279/2347 cut-off events. [2023-12-09 15:09:59,249 INFO L125 PetriNetUnfolderBase]: For 20920/24274 co-relation queries the response was YES. [2023-12-09 15:09:59,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17894 conditions, 2347 events. 279/2347 cut-off events. For 20920/24274 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 22373 event pairs, 39 based on Foata normal form. 17/2212 useless extension candidates. Maximal degree in co-relation 8840. Up to 625 conditions per place. [2023-12-09 15:09:59,264 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 284 selfloop transitions, 23 changer transitions 464/900 dead transitions. [2023-12-09 15:09:59,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 900 transitions, 23631 flow [2023-12-09 15:09:59,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:09:59,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:09:59,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2658 transitions. [2023-12-09 15:09:59,268 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.761168384879725 [2023-12-09 15:09:59,268 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2658 transitions. [2023-12-09 15:09:59,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2658 transitions. [2023-12-09 15:09:59,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:59,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2658 transitions. [2023-12-09 15:09:59,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 147.66666666666666) internal successors, (2658), 18 states have internal predecessors, (2658), 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) [2023-12-09 15:09:59,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 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) [2023-12-09 15:09:59,276 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 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) [2023-12-09 15:09:59,277 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 239 predicate places. [2023-12-09 15:09:59,277 INFO L500 AbstractCegarLoop]: Abstraction has has 414 places, 900 transitions, 23631 flow [2023-12-09 15:09:59,277 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:59,277 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:59,277 INFO L233 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] [2023-12-09 15:09:59,277 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-09 15:09:59,278 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:09:59,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:59,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1169656437, now seen corresponding path program 15 times [2023-12-09 15:09:59,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:59,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110541354] [2023-12-09 15:09:59,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:59,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:59,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:09:59,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:59,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110541354] [2023-12-09 15:09:59,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110541354] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:59,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:59,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:09:59,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918829179] [2023-12-09 15:09:59,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:59,463 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:09:59,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:59,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:09:59,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:09:59,464 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:09:59,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 900 transitions, 23631 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:09:59,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:59,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:09:59,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:00,150 INFO L124 PetriNetUnfolderBase]: 281/2385 cut-off events. [2023-12-09 15:10:00,150 INFO L125 PetriNetUnfolderBase]: For 24632/28490 co-relation queries the response was YES. [2023-12-09 15:10:00,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19471 conditions, 2385 events. 281/2385 cut-off events. For 24632/28490 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 22865 event pairs, 39 based on Foata normal form. 43/2274 useless extension candidates. Maximal degree in co-relation 9544. Up to 647 conditions per place. [2023-12-09 15:10:00,166 INFO L140 encePairwiseOnDemand]: 179/194 looper letters, 283 selfloop transitions, 22 changer transitions 494/928 dead transitions. [2023-12-09 15:10:00,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 928 transitions, 26078 flow [2023-12-09 15:10:00,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:10:00,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:10:00,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2496 transitions. [2023-12-09 15:10:00,170 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7568223165554882 [2023-12-09 15:10:00,170 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2496 transitions. [2023-12-09 15:10:00,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2496 transitions. [2023-12-09 15:10:00,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:00,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2496 transitions. [2023-12-09 15:10:00,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 146.8235294117647) internal successors, (2496), 17 states have internal predecessors, (2496), 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) [2023-12-09 15:10:00,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:10:00,176 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:10:00,177 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 255 predicate places. [2023-12-09 15:10:00,177 INFO L500 AbstractCegarLoop]: Abstraction has has 430 places, 928 transitions, 26078 flow [2023-12-09 15:10:00,177 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:10:00,177 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:00,177 INFO L233 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] [2023-12-09 15:10:00,177 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-09 15:10:00,177 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:00,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:00,178 INFO L85 PathProgramCache]: Analyzing trace with hash 918922521, now seen corresponding path program 16 times [2023-12-09 15:10:00,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:00,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377746058] [2023-12-09 15:10:00,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:00,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:00,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:00,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:00,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377746058] [2023-12-09 15:10:00,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377746058] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:00,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:00,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:00,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44557342] [2023-12-09 15:10:00,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:00,334 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:00,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:00,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:00,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:00,336 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:10:00,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 928 transitions, 26078 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:10:00,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:00,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:10:00,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:01,061 INFO L124 PetriNetUnfolderBase]: 280/2381 cut-off events. [2023-12-09 15:10:01,061 INFO L125 PetriNetUnfolderBase]: For 27779/31557 co-relation queries the response was YES. [2023-12-09 15:10:01,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20967 conditions, 2381 events. 280/2381 cut-off events. For 27779/31557 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 22847 event pairs, 47 based on Foata normal form. 38/2262 useless extension candidates. Maximal degree in co-relation 9883. Up to 665 conditions per place. [2023-12-09 15:10:01,078 INFO L140 encePairwiseOnDemand]: 179/194 looper letters, 280 selfloop transitions, 15 changer transitions 527/951 dead transitions. [2023-12-09 15:10:01,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 951 transitions, 28464 flow [2023-12-09 15:10:01,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:10:01,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:10:01,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2798 transitions. [2023-12-09 15:10:01,081 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7590884427563754 [2023-12-09 15:10:01,081 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2798 transitions. [2023-12-09 15:10:01,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2798 transitions. [2023-12-09 15:10:01,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:01,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2798 transitions. [2023-12-09 15:10:01,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 147.26315789473685) internal successors, (2798), 19 states have internal predecessors, (2798), 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) [2023-12-09 15:10:01,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 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) [2023-12-09 15:10:01,090 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 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) [2023-12-09 15:10:01,090 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 273 predicate places. [2023-12-09 15:10:01,092 INFO L500 AbstractCegarLoop]: Abstraction has has 448 places, 951 transitions, 28464 flow [2023-12-09 15:10:01,092 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:10:01,092 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:01,092 INFO L233 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] [2023-12-09 15:10:01,092 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-09 15:10:01,093 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:01,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:01,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1933661743, now seen corresponding path program 17 times [2023-12-09 15:10:01,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:01,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080342762] [2023-12-09 15:10:01,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:01,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:01,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:01,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:01,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080342762] [2023-12-09 15:10:01,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080342762] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:01,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:01,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:01,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260556538] [2023-12-09 15:10:01,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:01,248 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:01,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:01,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:01,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:01,250 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:10:01,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 951 transitions, 28464 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:10:01,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:01,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:10:01,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:02,067 INFO L124 PetriNetUnfolderBase]: 283/2432 cut-off events. [2023-12-09 15:10:02,068 INFO L125 PetriNetUnfolderBase]: For 32151/36355 co-relation queries the response was YES. [2023-12-09 15:10:02,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22702 conditions, 2432 events. 283/2432 cut-off events. For 32151/36355 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 23526 event pairs, 47 based on Foata normal form. 15/2288 useless extension candidates. Maximal degree in co-relation 10557. Up to 691 conditions per place. [2023-12-09 15:10:02,087 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 269 selfloop transitions, 21 changer transitions 561/980 dead transitions. [2023-12-09 15:10:02,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 980 transitions, 31164 flow [2023-12-09 15:10:02,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:10:02,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:10:02,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2959 transitions. [2023-12-09 15:10:02,090 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7626288659793814 [2023-12-09 15:10:02,090 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2959 transitions. [2023-12-09 15:10:02,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2959 transitions. [2023-12-09 15:10:02,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:02,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2959 transitions. [2023-12-09 15:10:02,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 147.95) internal successors, (2959), 20 states have internal predecessors, (2959), 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) [2023-12-09 15:10:02,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 194.0) internal successors, (4074), 21 states have internal predecessors, (4074), 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) [2023-12-09 15:10:02,098 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 194.0) internal successors, (4074), 21 states have internal predecessors, (4074), 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) [2023-12-09 15:10:02,099 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 292 predicate places. [2023-12-09 15:10:02,099 INFO L500 AbstractCegarLoop]: Abstraction has has 467 places, 980 transitions, 31164 flow [2023-12-09 15:10:02,099 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:10:02,099 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:02,099 INFO L233 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] [2023-12-09 15:10:02,099 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-09 15:10:02,099 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:02,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:02,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1484872869, now seen corresponding path program 18 times [2023-12-09 15:10:02,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:02,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588667576] [2023-12-09 15:10:02,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:02,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:02,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:02,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:02,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588667576] [2023-12-09 15:10:02,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588667576] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:02,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:02,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:02,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513822957] [2023-12-09 15:10:02,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:02,312 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:02,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:02,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:02,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:02,314 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:10:02,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 980 transitions, 31164 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:10:02,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:02,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:10:02,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:03,008 INFO L124 PetriNetUnfolderBase]: 285/2529 cut-off events. [2023-12-09 15:10:03,008 INFO L125 PetriNetUnfolderBase]: For 38246/43454 co-relation queries the response was YES. [2023-12-09 15:10:03,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24510 conditions, 2529 events. 285/2529 cut-off events. For 38246/43454 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 24834 event pairs, 39 based on Foata normal form. 24/2393 useless extension candidates. Maximal degree in co-relation 11696. Up to 717 conditions per place. [2023-12-09 15:10:03,027 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 269 selfloop transitions, 16 changer transitions 592/1006 dead transitions. [2023-12-09 15:10:03,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 1006 transitions, 33869 flow [2023-12-09 15:10:03,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:10:03,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:10:03,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2519 transitions. [2023-12-09 15:10:03,030 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7637962401455427 [2023-12-09 15:10:03,030 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2519 transitions. [2023-12-09 15:10:03,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2519 transitions. [2023-12-09 15:10:03,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:03,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2519 transitions. [2023-12-09 15:10:03,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 148.1764705882353) internal successors, (2519), 17 states have internal predecessors, (2519), 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) [2023-12-09 15:10:03,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:10:03,036 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:10:03,036 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 308 predicate places. [2023-12-09 15:10:03,036 INFO L500 AbstractCegarLoop]: Abstraction has has 483 places, 1006 transitions, 33869 flow [2023-12-09 15:10:03,037 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:10:03,037 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:03,037 INFO L233 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] [2023-12-09 15:10:03,037 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-09 15:10:03,037 INFO L425 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:03,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:03,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1404966763, now seen corresponding path program 19 times [2023-12-09 15:10:03,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:03,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633751640] [2023-12-09 15:10:03,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:03,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:03,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:03,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:03,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633751640] [2023-12-09 15:10:03,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633751640] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:03,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:03,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:03,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709899674] [2023-12-09 15:10:03,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:03,178 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:03,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:03,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:03,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:03,180 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:10:03,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 1006 transitions, 33869 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:10:03,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:03,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:10:03,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:04,045 INFO L124 PetriNetUnfolderBase]: 284/2520 cut-off events. [2023-12-09 15:10:04,045 INFO L125 PetriNetUnfolderBase]: For 43513/49972 co-relation queries the response was YES. [2023-12-09 15:10:04,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26096 conditions, 2520 events. 284/2520 cut-off events. For 43513/49972 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 24634 event pairs, 44 based on Foata normal form. 20/2375 useless extension candidates. Maximal degree in co-relation 11686. Up to 734 conditions per place. [2023-12-09 15:10:04,062 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 264 selfloop transitions, 9 changer transitions 624/1026 dead transitions. [2023-12-09 15:10:04,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 1026 transitions, 36429 flow [2023-12-09 15:10:04,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:10:04,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:10:04,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2658 transitions. [2023-12-09 15:10:04,065 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.761168384879725 [2023-12-09 15:10:04,065 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2658 transitions. [2023-12-09 15:10:04,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2658 transitions. [2023-12-09 15:10:04,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:04,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2658 transitions. [2023-12-09 15:10:04,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 147.66666666666666) internal successors, (2658), 18 states have internal predecessors, (2658), 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) [2023-12-09 15:10:04,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 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) [2023-12-09 15:10:04,071 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 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) [2023-12-09 15:10:04,071 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 325 predicate places. [2023-12-09 15:10:04,071 INFO L500 AbstractCegarLoop]: Abstraction has has 500 places, 1026 transitions, 36429 flow [2023-12-09 15:10:04,072 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:10:04,072 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:04,072 INFO L233 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] [2023-12-09 15:10:04,072 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-09 15:10:04,072 INFO L425 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:04,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:04,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1084831515, now seen corresponding path program 20 times [2023-12-09 15:10:04,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:04,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943931232] [2023-12-09 15:10:04,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:04,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:04,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:04,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:04,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943931232] [2023-12-09 15:10:04,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943931232] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:04,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:04,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:04,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396033566] [2023-12-09 15:10:04,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:04,206 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:04,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:04,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:04,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:04,208 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 194 [2023-12-09 15:10:04,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 1026 transitions, 36429 flow. Second operand has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:10:04,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:04,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 194 [2023-12-09 15:10:04,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:05,088 INFO L124 PetriNetUnfolderBase]: 284/2555 cut-off events. [2023-12-09 15:10:05,089 INFO L125 PetriNetUnfolderBase]: For 48691/55176 co-relation queries the response was YES. [2023-12-09 15:10:05,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27304 conditions, 2555 events. 284/2555 cut-off events. For 48691/55176 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 25173 event pairs, 42 based on Foata normal form. 39/2434 useless extension candidates. Maximal degree in co-relation 12265. Up to 731 conditions per place. [2023-12-09 15:10:05,111 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 235 selfloop transitions, 4 changer transitions 655/1023 dead transitions. [2023-12-09 15:10:05,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 1023 transitions, 38097 flow [2023-12-09 15:10:05,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:10:05,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:10:05,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2957 transitions. [2023-12-09 15:10:05,115 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7621134020618556 [2023-12-09 15:10:05,115 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2957 transitions. [2023-12-09 15:10:05,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2957 transitions. [2023-12-09 15:10:05,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:05,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2957 transitions. [2023-12-09 15:10:05,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 147.85) internal successors, (2957), 20 states have internal predecessors, (2957), 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) [2023-12-09 15:10:05,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 194.0) internal successors, (4074), 21 states have internal predecessors, (4074), 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) [2023-12-09 15:10:05,121 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 194.0) internal successors, (4074), 21 states have internal predecessors, (4074), 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) [2023-12-09 15:10:05,121 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 344 predicate places. [2023-12-09 15:10:05,121 INFO L500 AbstractCegarLoop]: Abstraction has has 519 places, 1023 transitions, 38097 flow [2023-12-09 15:10:05,122 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.6) internal successors, (1426), 10 states have internal predecessors, (1426), 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) [2023-12-09 15:10:05,122 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:05,122 INFO L233 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, 1] [2023-12-09 15:10:05,122 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-09 15:10:05,122 INFO L425 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:05,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:05,123 INFO L85 PathProgramCache]: Analyzing trace with hash -204898147, now seen corresponding path program 1 times [2023-12-09 15:10:05,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:05,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741634302] [2023-12-09 15:10:05,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:05,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:05,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:05,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:05,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741634302] [2023-12-09 15:10:05,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741634302] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:05,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:05,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:05,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676654966] [2023-12-09 15:10:05,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:05,244 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:05,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:05,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:05,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:05,245 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:05,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 519 places, 1023 transitions, 38097 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:05,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:05,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:05,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:06,298 INFO L124 PetriNetUnfolderBase]: 429/3124 cut-off events. [2023-12-09 15:10:06,298 INFO L125 PetriNetUnfolderBase]: For 82810/91268 co-relation queries the response was YES. [2023-12-09 15:10:06,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34792 conditions, 3124 events. 429/3124 cut-off events. For 82810/91268 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 32044 event pairs, 63 based on Foata normal form. 41/2987 useless extension candidates. Maximal degree in co-relation 16742. Up to 858 conditions per place. [2023-12-09 15:10:06,326 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 288 selfloop transitions, 24 changer transitions 725/1180 dead transitions. [2023-12-09 15:10:06,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 1180 transitions, 46309 flow [2023-12-09 15:10:06,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:10:06,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:10:06,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3001 transitions. [2023-12-09 15:10:06,331 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7734536082474227 [2023-12-09 15:10:06,331 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3001 transitions. [2023-12-09 15:10:06,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3001 transitions. [2023-12-09 15:10:06,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:06,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3001 transitions. [2023-12-09 15:10:06,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 150.05) internal successors, (3001), 20 states have internal predecessors, (3001), 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) [2023-12-09 15:10:06,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 194.0) internal successors, (4074), 21 states have internal predecessors, (4074), 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) [2023-12-09 15:10:06,337 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 194.0) internal successors, (4074), 21 states have internal predecessors, (4074), 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) [2023-12-09 15:10:06,338 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 363 predicate places. [2023-12-09 15:10:06,338 INFO L500 AbstractCegarLoop]: Abstraction has has 538 places, 1180 transitions, 46309 flow [2023-12-09 15:10:06,338 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:06,338 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:06,338 INFO L233 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, 1] [2023-12-09 15:10:06,338 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-09 15:10:06,339 INFO L425 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:06,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:06,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1058590041, now seen corresponding path program 2 times [2023-12-09 15:10:06,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:06,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050180723] [2023-12-09 15:10:06,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:06,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:06,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:06,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:06,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050180723] [2023-12-09 15:10:06,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050180723] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:06,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:06,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:06,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876131807] [2023-12-09 15:10:06,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:06,479 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:06,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:06,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:06,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:06,480 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:06,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 1180 transitions, 46309 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:06,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:06,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:06,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:07,612 INFO L124 PetriNetUnfolderBase]: 444/3260 cut-off events. [2023-12-09 15:10:07,612 INFO L125 PetriNetUnfolderBase]: For 88103/94992 co-relation queries the response was YES. [2023-12-09 15:10:07,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37488 conditions, 3260 events. 444/3260 cut-off events. For 88103/94992 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 33960 event pairs, 61 based on Foata normal form. 40/3121 useless extension candidates. Maximal degree in co-relation 22211. Up to 1265 conditions per place. [2023-12-09 15:10:07,637 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 297 selfloop transitions, 31 changer transitions 751/1222 dead transitions. [2023-12-09 15:10:07,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 1222 transitions, 50073 flow [2023-12-09 15:10:07,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:10:07,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:10:07,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2392 transitions. [2023-12-09 15:10:07,640 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.770618556701031 [2023-12-09 15:10:07,640 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2392 transitions. [2023-12-09 15:10:07,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2392 transitions. [2023-12-09 15:10:07,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:07,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2392 transitions. [2023-12-09 15:10:07,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 149.5) internal successors, (2392), 16 states have internal predecessors, (2392), 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) [2023-12-09 15:10:07,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 194.0) internal successors, (3298), 17 states have internal predecessors, (3298), 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) [2023-12-09 15:10:07,645 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 194.0) internal successors, (3298), 17 states have internal predecessors, (3298), 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) [2023-12-09 15:10:07,645 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 378 predicate places. [2023-12-09 15:10:07,646 INFO L500 AbstractCegarLoop]: Abstraction has has 553 places, 1222 transitions, 50073 flow [2023-12-09 15:10:07,646 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:07,646 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:07,646 INFO L233 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, 1] [2023-12-09 15:10:07,646 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-09 15:10:07,646 INFO L425 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:07,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:07,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1842984863, now seen corresponding path program 3 times [2023-12-09 15:10:07,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:07,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845809910] [2023-12-09 15:10:07,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:07,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:07,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:07,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:07,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845809910] [2023-12-09 15:10:07,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845809910] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:07,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:07,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:07,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012687744] [2023-12-09 15:10:07,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:07,754 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:07,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:07,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:07,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:07,755 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:07,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 1222 transitions, 50073 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:07,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:07,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:07,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:08,769 INFO L124 PetriNetUnfolderBase]: 371/2876 cut-off events. [2023-12-09 15:10:08,769 INFO L125 PetriNetUnfolderBase]: For 87149/95222 co-relation queries the response was YES. [2023-12-09 15:10:08,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35415 conditions, 2876 events. 371/2876 cut-off events. For 87149/95222 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 29155 event pairs, 45 based on Foata normal form. 55/2799 useless extension candidates. Maximal degree in co-relation 15510. Up to 1123 conditions per place. [2023-12-09 15:10:08,789 INFO L140 encePairwiseOnDemand]: 176/194 looper letters, 286 selfloop transitions, 33 changer transitions 780/1240 dead transitions. [2023-12-09 15:10:08,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 569 places, 1240 transitions, 52741 flow [2023-12-09 15:10:08,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:10:08,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:10:08,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3008 transitions. [2023-12-09 15:10:08,794 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7752577319587629 [2023-12-09 15:10:08,794 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3008 transitions. [2023-12-09 15:10:08,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3008 transitions. [2023-12-09 15:10:08,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:08,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3008 transitions. [2023-12-09 15:10:08,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 150.4) internal successors, (3008), 20 states have internal predecessors, (3008), 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) [2023-12-09 15:10:08,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 194.0) internal successors, (4074), 21 states have internal predecessors, (4074), 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) [2023-12-09 15:10:08,811 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 194.0) internal successors, (4074), 21 states have internal predecessors, (4074), 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) [2023-12-09 15:10:08,811 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 394 predicate places. [2023-12-09 15:10:08,811 INFO L500 AbstractCegarLoop]: Abstraction has has 569 places, 1240 transitions, 52741 flow [2023-12-09 15:10:08,811 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:08,812 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:08,812 INFO L233 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, 1] [2023-12-09 15:10:08,812 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-09 15:10:08,812 INFO L425 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:08,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:08,812 INFO L85 PathProgramCache]: Analyzing trace with hash -809874161, now seen corresponding path program 4 times [2023-12-09 15:10:08,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:08,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598403286] [2023-12-09 15:10:08,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:08,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:08,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:08,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:08,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598403286] [2023-12-09 15:10:08,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598403286] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:08,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:08,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:08,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272721741] [2023-12-09 15:10:08,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:08,946 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:08,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:08,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:08,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:08,947 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:08,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 569 places, 1240 transitions, 52741 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:08,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:08,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:08,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:10,117 INFO L124 PetriNetUnfolderBase]: 383/3069 cut-off events. [2023-12-09 15:10:10,117 INFO L125 PetriNetUnfolderBase]: For 97982/107127 co-relation queries the response was YES. [2023-12-09 15:10:10,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38767 conditions, 3069 events. 383/3069 cut-off events. For 97982/107127 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 31882 event pairs, 41 based on Foata normal form. 52/2979 useless extension candidates. Maximal degree in co-relation 16618. Up to 1238 conditions per place. [2023-12-09 15:10:10,143 INFO L140 encePairwiseOnDemand]: 181/194 looper letters, 326 selfloop transitions, 18 changer transitions 819/1304 dead transitions. [2023-12-09 15:10:10,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 587 places, 1304 transitions, 57970 flow [2023-12-09 15:10:10,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:10:10,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:10:10,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2826 transitions. [2023-12-09 15:10:10,146 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7666847531199131 [2023-12-09 15:10:10,146 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2826 transitions. [2023-12-09 15:10:10,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2826 transitions. [2023-12-09 15:10:10,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:10,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2826 transitions. [2023-12-09 15:10:10,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 148.73684210526315) internal successors, (2826), 19 states have internal predecessors, (2826), 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) [2023-12-09 15:10:10,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 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) [2023-12-09 15:10:10,152 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 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) [2023-12-09 15:10:10,152 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 412 predicate places. [2023-12-09 15:10:10,152 INFO L500 AbstractCegarLoop]: Abstraction has has 587 places, 1304 transitions, 57970 flow [2023-12-09 15:10:10,152 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:10,152 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:10,152 INFO L233 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, 1] [2023-12-09 15:10:10,153 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-09 15:10:10,153 INFO L425 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:10,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:10,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1443340919, now seen corresponding path program 5 times [2023-12-09 15:10:10,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:10,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849890389] [2023-12-09 15:10:10,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:10,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:10,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:10,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:10,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849890389] [2023-12-09 15:10:10,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849890389] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:10,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:10,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:10,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101760338] [2023-12-09 15:10:10,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:10,257 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:10,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:10,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:10,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:10,258 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:10,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 587 places, 1304 transitions, 57970 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:10,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:10,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:10,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:11,416 INFO L124 PetriNetUnfolderBase]: 390/3133 cut-off events. [2023-12-09 15:10:11,416 INFO L125 PetriNetUnfolderBase]: For 105978/116474 co-relation queries the response was YES. [2023-12-09 15:10:11,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41067 conditions, 3133 events. 390/3133 cut-off events. For 105978/116474 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 32679 event pairs, 38 based on Foata normal form. 28/3013 useless extension candidates. Maximal degree in co-relation 17548. Up to 1334 conditions per place. [2023-12-09 15:10:11,440 INFO L140 encePairwiseOnDemand]: 181/194 looper letters, 322 selfloop transitions, 20 changer transitions 847/1330 dead transitions. [2023-12-09 15:10:11,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 602 places, 1330 transitions, 61575 flow [2023-12-09 15:10:11,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:10:11,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:10:11,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2367 transitions. [2023-12-09 15:10:11,442 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7625644329896907 [2023-12-09 15:10:11,442 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2367 transitions. [2023-12-09 15:10:11,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2367 transitions. [2023-12-09 15:10:11,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:11,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2367 transitions. [2023-12-09 15:10:11,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 147.9375) internal successors, (2367), 16 states have internal predecessors, (2367), 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) [2023-12-09 15:10:11,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 194.0) internal successors, (3298), 17 states have internal predecessors, (3298), 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) [2023-12-09 15:10:11,446 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 194.0) internal successors, (3298), 17 states have internal predecessors, (3298), 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) [2023-12-09 15:10:11,447 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 427 predicate places. [2023-12-09 15:10:11,447 INFO L500 AbstractCegarLoop]: Abstraction has has 602 places, 1330 transitions, 61575 flow [2023-12-09 15:10:11,447 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:11,447 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:11,447 INFO L233 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, 1] [2023-12-09 15:10:11,447 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-09 15:10:11,447 INFO L425 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:11,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:11,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1740658305, now seen corresponding path program 6 times [2023-12-09 15:10:11,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:11,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568203045] [2023-12-09 15:10:11,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:11,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:11,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:11,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:11,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568203045] [2023-12-09 15:10:11,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568203045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:11,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:11,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:11,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940726763] [2023-12-09 15:10:11,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:11,557 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:11,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:11,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:11,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:11,560 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:11,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 602 places, 1330 transitions, 61575 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:11,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:11,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:11,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:12,865 INFO L124 PetriNetUnfolderBase]: 388/3145 cut-off events. [2023-12-09 15:10:12,865 INFO L125 PetriNetUnfolderBase]: For 116118/129363 co-relation queries the response was YES. [2023-12-09 15:10:12,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42420 conditions, 3145 events. 388/3145 cut-off events. For 116118/129363 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 33009 event pairs, 45 based on Foata normal form. 35/3040 useless extension candidates. Maximal degree in co-relation 18252. Up to 1325 conditions per place. [2023-12-09 15:10:12,891 INFO L140 encePairwiseOnDemand]: 181/194 looper letters, 291 selfloop transitions, 9 changer transitions 879/1320 dead transitions. [2023-12-09 15:10:12,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 619 places, 1320 transitions, 63405 flow [2023-12-09 15:10:12,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:10:12,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:10:12,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2658 transitions. [2023-12-09 15:10:12,893 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.761168384879725 [2023-12-09 15:10:12,893 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2658 transitions. [2023-12-09 15:10:12,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2658 transitions. [2023-12-09 15:10:12,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:12,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2658 transitions. [2023-12-09 15:10:12,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 147.66666666666666) internal successors, (2658), 18 states have internal predecessors, (2658), 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) [2023-12-09 15:10:12,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 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) [2023-12-09 15:10:12,899 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 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) [2023-12-09 15:10:12,899 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 444 predicate places. [2023-12-09 15:10:12,899 INFO L500 AbstractCegarLoop]: Abstraction has has 619 places, 1320 transitions, 63405 flow [2023-12-09 15:10:12,900 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:12,900 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:12,900 INFO L233 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, 1] [2023-12-09 15:10:12,900 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-09 15:10:12,900 INFO L425 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:12,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:12,900 INFO L85 PathProgramCache]: Analyzing trace with hash 992245017, now seen corresponding path program 7 times [2023-12-09 15:10:12,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:12,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667209451] [2023-12-09 15:10:12,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:12,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:13,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:13,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:13,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667209451] [2023-12-09 15:10:13,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667209451] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:13,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:13,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:13,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197351339] [2023-12-09 15:10:13,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:13,007 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:13,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:13,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:13,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:13,008 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:13,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 619 places, 1320 transitions, 63405 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:13,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:13,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:13,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:14,250 INFO L124 PetriNetUnfolderBase]: 397/3155 cut-off events. [2023-12-09 15:10:14,250 INFO L125 PetriNetUnfolderBase]: For 129859/146569 co-relation queries the response was YES. [2023-12-09 15:10:14,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44981 conditions, 3155 events. 397/3155 cut-off events. For 129859/146569 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 32975 event pairs, 43 based on Foata normal form. 122/3134 useless extension candidates. Maximal degree in co-relation 19343. Up to 1354 conditions per place. [2023-12-09 15:10:14,278 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 280 selfloop transitions, 27 changer transitions 906/1354 dead transitions. [2023-12-09 15:10:14,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 633 places, 1354 transitions, 67597 flow [2023-12-09 15:10:14,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:10:14,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:10:14,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2254 transitions. [2023-12-09 15:10:14,281 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7745704467353952 [2023-12-09 15:10:14,281 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2254 transitions. [2023-12-09 15:10:14,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2254 transitions. [2023-12-09 15:10:14,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:14,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2254 transitions. [2023-12-09 15:10:14,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 150.26666666666668) internal successors, (2254), 15 states have internal predecessors, (2254), 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) [2023-12-09 15:10:14,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 194.0) internal successors, (3104), 16 states have internal predecessors, (3104), 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) [2023-12-09 15:10:14,285 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 194.0) internal successors, (3104), 16 states have internal predecessors, (3104), 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) [2023-12-09 15:10:14,286 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 458 predicate places. [2023-12-09 15:10:14,286 INFO L500 AbstractCegarLoop]: Abstraction has has 633 places, 1354 transitions, 67597 flow [2023-12-09 15:10:14,286 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:14,286 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:14,286 INFO L233 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, 1] [2023-12-09 15:10:14,286 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-09 15:10:14,286 INFO L425 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:14,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:14,287 INFO L85 PathProgramCache]: Analyzing trace with hash 2016530703, now seen corresponding path program 8 times [2023-12-09 15:10:14,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:14,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571592008] [2023-12-09 15:10:14,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:14,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:14,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:14,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:14,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:14,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571592008] [2023-12-09 15:10:14,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571592008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:14,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:14,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:14,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288493715] [2023-12-09 15:10:14,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:14,391 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:14,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:14,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:14,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:14,392 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:14,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 633 places, 1354 transitions, 67597 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:14,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:14,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:14,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:16,164 INFO L124 PetriNetUnfolderBase]: 401/3272 cut-off events. [2023-12-09 15:10:16,164 INFO L125 PetriNetUnfolderBase]: For 138013/151379 co-relation queries the response was YES. [2023-12-09 15:10:16,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47260 conditions, 3272 events. 401/3272 cut-off events. For 138013/151379 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 34659 event pairs, 39 based on Foata normal form. 120/3244 useless extension candidates. Maximal degree in co-relation 20264. Up to 1372 conditions per place. [2023-12-09 15:10:16,187 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 278 selfloop transitions, 21 changer transitions 935/1375 dead transitions. [2023-12-09 15:10:16,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 650 places, 1375 transitions, 71122 flow [2023-12-09 15:10:16,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:10:16,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:10:16,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2684 transitions. [2023-12-09 15:10:16,189 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7686139747995419 [2023-12-09 15:10:16,189 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2684 transitions. [2023-12-09 15:10:16,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2684 transitions. [2023-12-09 15:10:16,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:16,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2684 transitions. [2023-12-09 15:10:16,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 149.11111111111111) internal successors, (2684), 18 states have internal predecessors, (2684), 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) [2023-12-09 15:10:16,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 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) [2023-12-09 15:10:16,194 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 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) [2023-12-09 15:10:16,195 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 475 predicate places. [2023-12-09 15:10:16,195 INFO L500 AbstractCegarLoop]: Abstraction has has 650 places, 1375 transitions, 71122 flow [2023-12-09 15:10:16,195 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:16,195 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:16,195 INFO L233 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, 1] [2023-12-09 15:10:16,195 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-09 15:10:16,195 INFO L425 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:16,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:16,196 INFO L85 PathProgramCache]: Analyzing trace with hash 120395699, now seen corresponding path program 9 times [2023-12-09 15:10:16,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:16,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278585569] [2023-12-09 15:10:16,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:16,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:16,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:16,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:16,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278585569] [2023-12-09 15:10:16,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278585569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:16,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:16,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:16,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488452007] [2023-12-09 15:10:16,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:16,333 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:16,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:16,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:16,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:16,334 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:16,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 650 places, 1375 transitions, 71122 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:16,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:16,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:16,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:17,828 INFO L124 PetriNetUnfolderBase]: 416/3350 cut-off events. [2023-12-09 15:10:17,829 INFO L125 PetriNetUnfolderBase]: For 152995/167848 co-relation queries the response was YES. [2023-12-09 15:10:17,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50514 conditions, 3350 events. 416/3350 cut-off events. For 152995/167848 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 35815 event pairs, 43 based on Foata normal form. 84/3291 useless extension candidates. Maximal degree in co-relation 21796. Up to 1415 conditions per place. [2023-12-09 15:10:17,859 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 295 selfloop transitions, 23 changer transitions 966/1425 dead transitions. [2023-12-09 15:10:17,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 666 places, 1425 transitions, 76409 flow [2023-12-09 15:10:17,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:10:17,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:10:17,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2543 transitions. [2023-12-09 15:10:17,861 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7710733778047302 [2023-12-09 15:10:17,861 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2543 transitions. [2023-12-09 15:10:17,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2543 transitions. [2023-12-09 15:10:17,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:17,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2543 transitions. [2023-12-09 15:10:17,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 149.58823529411765) internal successors, (2543), 17 states have internal predecessors, (2543), 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) [2023-12-09 15:10:17,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:10:17,865 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:10:17,866 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 491 predicate places. [2023-12-09 15:10:17,866 INFO L500 AbstractCegarLoop]: Abstraction has has 666 places, 1425 transitions, 76409 flow [2023-12-09 15:10:17,866 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:17,866 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:17,866 INFO L233 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, 1] [2023-12-09 15:10:17,866 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-09 15:10:17,866 INFO L425 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:17,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:17,867 INFO L85 PathProgramCache]: Analyzing trace with hash 73582553, now seen corresponding path program 10 times [2023-12-09 15:10:17,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:17,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818639956] [2023-12-09 15:10:17,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:17,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:17,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:17,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:17,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818639956] [2023-12-09 15:10:17,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818639956] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:17,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:17,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:17,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101577530] [2023-12-09 15:10:17,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:17,965 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:17,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:17,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:17,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:17,966 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:17,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 666 places, 1425 transitions, 76409 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:17,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:17,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:17,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:19,834 INFO L124 PetriNetUnfolderBase]: 421/3372 cut-off events. [2023-12-09 15:10:19,834 INFO L125 PetriNetUnfolderBase]: For 166296/182346 co-relation queries the response was YES. [2023-12-09 15:10:19,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52943 conditions, 3372 events. 421/3372 cut-off events. For 166296/182346 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 36055 event pairs, 39 based on Foata normal form. 89/3311 useless extension candidates. Maximal degree in co-relation 22759. Up to 1436 conditions per place. [2023-12-09 15:10:19,858 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 291 selfloop transitions, 23 changer transitions 994/1449 dead transitions. [2023-12-09 15:10:19,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 682 places, 1449 transitions, 80389 flow [2023-12-09 15:10:19,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:10:19,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:10:19,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2540 transitions. [2023-12-09 15:10:19,860 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7701637355973318 [2023-12-09 15:10:19,861 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2540 transitions. [2023-12-09 15:10:19,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2540 transitions. [2023-12-09 15:10:19,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:19,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2540 transitions. [2023-12-09 15:10:19,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 149.41176470588235) internal successors, (2540), 17 states have internal predecessors, (2540), 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) [2023-12-09 15:10:19,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:10:19,865 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:10:19,865 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 507 predicate places. [2023-12-09 15:10:19,865 INFO L500 AbstractCegarLoop]: Abstraction has has 682 places, 1449 transitions, 80389 flow [2023-12-09 15:10:19,865 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:19,865 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:19,866 INFO L233 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, 1] [2023-12-09 15:10:19,866 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-09 15:10:19,866 INFO L425 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:19,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:19,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1375399031, now seen corresponding path program 11 times [2023-12-09 15:10:19,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:19,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026762353] [2023-12-09 15:10:19,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:19,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:19,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:19,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:19,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026762353] [2023-12-09 15:10:19,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026762353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:19,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:19,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:19,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88690301] [2023-12-09 15:10:19,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:19,978 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:19,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:19,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:19,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:19,979 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:19,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 682 places, 1449 transitions, 80389 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:19,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:19,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:19,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:21,593 INFO L124 PetriNetUnfolderBase]: 418/3384 cut-off events. [2023-12-09 15:10:21,593 INFO L125 PetriNetUnfolderBase]: For 178399/194475 co-relation queries the response was YES. [2023-12-09 15:10:21,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55087 conditions, 3384 events. 418/3384 cut-off events. For 178399/194475 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 36394 event pairs, 42 based on Foata normal form. 67/3302 useless extension candidates. Maximal degree in co-relation 23502. Up to 1449 conditions per place. [2023-12-09 15:10:21,625 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 285 selfloop transitions, 13 changer transitions 1023/1462 dead transitions. [2023-12-09 15:10:21,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 697 places, 1462 transitions, 83835 flow [2023-12-09 15:10:21,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:10:21,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:10:21,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2398 transitions. [2023-12-09 15:10:21,627 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7725515463917526 [2023-12-09 15:10:21,627 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2398 transitions. [2023-12-09 15:10:21,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2398 transitions. [2023-12-09 15:10:21,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:21,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2398 transitions. [2023-12-09 15:10:21,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 149.875) internal successors, (2398), 16 states have internal predecessors, (2398), 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) [2023-12-09 15:10:21,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 194.0) internal successors, (3298), 17 states have internal predecessors, (3298), 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) [2023-12-09 15:10:21,631 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 194.0) internal successors, (3298), 17 states have internal predecessors, (3298), 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) [2023-12-09 15:10:21,631 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 522 predicate places. [2023-12-09 15:10:21,632 INFO L500 AbstractCegarLoop]: Abstraction has has 697 places, 1462 transitions, 83835 flow [2023-12-09 15:10:21,632 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:21,632 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:21,632 INFO L233 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, 1] [2023-12-09 15:10:21,632 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-09 15:10:21,632 INFO L425 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:21,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:21,632 INFO L85 PathProgramCache]: Analyzing trace with hash 512978991, now seen corresponding path program 12 times [2023-12-09 15:10:21,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:21,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893846818] [2023-12-09 15:10:21,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:21,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:21,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:21,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:21,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893846818] [2023-12-09 15:10:21,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893846818] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:21,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:21,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:21,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593477077] [2023-12-09 15:10:21,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:21,740 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:21,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:21,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:21,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:21,741 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:21,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 697 places, 1462 transitions, 83835 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:21,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:21,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:21,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:23,683 INFO L124 PetriNetUnfolderBase]: 425/3448 cut-off events. [2023-12-09 15:10:23,683 INFO L125 PetriNetUnfolderBase]: For 195907/215664 co-relation queries the response was YES. [2023-12-09 15:10:23,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57925 conditions, 3448 events. 425/3448 cut-off events. For 195907/215664 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 37195 event pairs, 41 based on Foata normal form. 65/3366 useless extension candidates. Maximal degree in co-relation 24651. Up to 1479 conditions per place. [2023-12-09 15:10:23,714 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 278 selfloop transitions, 18 changer transitions 1057/1492 dead transitions. [2023-12-09 15:10:23,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 715 places, 1492 transitions, 88387 flow [2023-12-09 15:10:23,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:10:23,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:10:23,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2849 transitions. [2023-12-09 15:10:23,716 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7729245794899621 [2023-12-09 15:10:23,716 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2849 transitions. [2023-12-09 15:10:23,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2849 transitions. [2023-12-09 15:10:23,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:23,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2849 transitions. [2023-12-09 15:10:23,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 149.94736842105263) internal successors, (2849), 19 states have internal predecessors, (2849), 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) [2023-12-09 15:10:23,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 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) [2023-12-09 15:10:23,721 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 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) [2023-12-09 15:10:23,721 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 540 predicate places. [2023-12-09 15:10:23,721 INFO L500 AbstractCegarLoop]: Abstraction has has 715 places, 1492 transitions, 88387 flow [2023-12-09 15:10:23,722 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:23,722 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:23,722 INFO L233 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, 1] [2023-12-09 15:10:23,722 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-09 15:10:23,722 INFO L425 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:23,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:23,722 INFO L85 PathProgramCache]: Analyzing trace with hash 634424271, now seen corresponding path program 13 times [2023-12-09 15:10:23,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:23,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618117970] [2023-12-09 15:10:23,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:23,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:23,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:23,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:23,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618117970] [2023-12-09 15:10:23,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618117970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:23,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:23,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:23,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806540894] [2023-12-09 15:10:23,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:23,817 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:23,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:23,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:23,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:23,819 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:23,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 715 places, 1492 transitions, 88387 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:23,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:23,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:23,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:25,797 INFO L124 PetriNetUnfolderBase]: 432/3577 cut-off events. [2023-12-09 15:10:25,797 INFO L125 PetriNetUnfolderBase]: For 209867/229354 co-relation queries the response was YES. [2023-12-09 15:10:25,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60756 conditions, 3577 events. 432/3577 cut-off events. For 209867/229354 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 39182 event pairs, 40 based on Foata normal form. 54/3480 useless extension candidates. Maximal degree in co-relation 33598. Up to 1507 conditions per place. [2023-12-09 15:10:25,831 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 273 selfloop transitions, 18 changer transitions 1088/1518 dead transitions. [2023-12-09 15:10:25,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 732 places, 1518 transitions, 92784 flow [2023-12-09 15:10:25,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:10:25,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:10:25,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2684 transitions. [2023-12-09 15:10:25,833 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7686139747995419 [2023-12-09 15:10:25,833 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2684 transitions. [2023-12-09 15:10:25,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2684 transitions. [2023-12-09 15:10:25,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:25,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2684 transitions. [2023-12-09 15:10:25,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 149.11111111111111) internal successors, (2684), 18 states have internal predecessors, (2684), 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) [2023-12-09 15:10:25,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 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) [2023-12-09 15:10:25,837 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 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) [2023-12-09 15:10:25,838 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 557 predicate places. [2023-12-09 15:10:25,838 INFO L500 AbstractCegarLoop]: Abstraction has has 732 places, 1518 transitions, 92784 flow [2023-12-09 15:10:25,838 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:25,838 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:25,838 INFO L233 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, 1] [2023-12-09 15:10:25,838 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-09 15:10:25,838 INFO L425 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:25,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:25,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1889526375, now seen corresponding path program 14 times [2023-12-09 15:10:25,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:25,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602745660] [2023-12-09 15:10:25,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:25,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:25,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:25,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:25,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:25,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602745660] [2023-12-09 15:10:25,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602745660] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:25,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:25,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:25,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997504948] [2023-12-09 15:10:25,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:25,935 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:25,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:25,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:25,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:25,936 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:25,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 732 places, 1518 transitions, 92784 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:25,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:25,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:25,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:27,847 INFO L124 PetriNetUnfolderBase]: 435/3573 cut-off events. [2023-12-09 15:10:27,848 INFO L125 PetriNetUnfolderBase]: For 229218/252041 co-relation queries the response was YES. [2023-12-09 15:10:27,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63317 conditions, 3573 events. 435/3573 cut-off events. For 229218/252041 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 38933 event pairs, 41 based on Foata normal form. 30/3449 useless extension candidates. Maximal degree in co-relation 26772. Up to 1529 conditions per place. [2023-12-09 15:10:27,880 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 269 selfloop transitions, 16 changer transitions 1116/1540 dead transitions. [2023-12-09 15:10:27,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 747 places, 1540 transitions, 97002 flow [2023-12-09 15:10:27,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:10:27,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:10:27,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2392 transitions. [2023-12-09 15:10:27,882 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.770618556701031 [2023-12-09 15:10:27,882 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2392 transitions. [2023-12-09 15:10:27,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2392 transitions. [2023-12-09 15:10:27,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:27,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2392 transitions. [2023-12-09 15:10:27,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 149.5) internal successors, (2392), 16 states have internal predecessors, (2392), 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) [2023-12-09 15:10:27,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 194.0) internal successors, (3298), 17 states have internal predecessors, (3298), 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) [2023-12-09 15:10:27,886 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 194.0) internal successors, (3298), 17 states have internal predecessors, (3298), 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) [2023-12-09 15:10:27,886 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 572 predicate places. [2023-12-09 15:10:27,886 INFO L500 AbstractCegarLoop]: Abstraction has has 747 places, 1540 transitions, 97002 flow [2023-12-09 15:10:27,887 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:27,887 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:27,887 INFO L233 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, 1] [2023-12-09 15:10:27,887 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-09 15:10:27,887 INFO L425 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:27,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:27,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1874403511, now seen corresponding path program 15 times [2023-12-09 15:10:27,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:27,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122599402] [2023-12-09 15:10:27,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:27,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:27,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:27,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:27,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122599402] [2023-12-09 15:10:27,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122599402] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:27,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:27,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:27,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134856482] [2023-12-09 15:10:27,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:27,990 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:27,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:27,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:27,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:27,992 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:27,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 747 places, 1540 transitions, 97002 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:27,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:27,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:27,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:30,327 INFO L124 PetriNetUnfolderBase]: 433/3614 cut-off events. [2023-12-09 15:10:30,327 INFO L125 PetriNetUnfolderBase]: For 245500/269440 co-relation queries the response was YES. [2023-12-09 15:10:30,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64837 conditions, 3614 events. 433/3614 cut-off events. For 245500/269440 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 39630 event pairs, 44 based on Foata normal form. 38/3505 useless extension candidates. Maximal degree in co-relation 27601. Up to 1519 conditions per place. [2023-12-09 15:10:30,358 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 241 selfloop transitions, 6 changer transitions 1147/1530 dead transitions. [2023-12-09 15:10:30,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 762 places, 1530 transitions, 99072 flow [2023-12-09 15:10:30,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:10:30,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:10:30,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2393 transitions. [2023-12-09 15:10:30,361 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7709407216494846 [2023-12-09 15:10:30,361 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2393 transitions. [2023-12-09 15:10:30,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2393 transitions. [2023-12-09 15:10:30,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:30,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2393 transitions. [2023-12-09 15:10:30,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 149.5625) internal successors, (2393), 16 states have internal predecessors, (2393), 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) [2023-12-09 15:10:30,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 194.0) internal successors, (3298), 17 states have internal predecessors, (3298), 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) [2023-12-09 15:10:30,365 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 194.0) internal successors, (3298), 17 states have internal predecessors, (3298), 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) [2023-12-09 15:10:30,365 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 587 predicate places. [2023-12-09 15:10:30,365 INFO L500 AbstractCegarLoop]: Abstraction has has 762 places, 1530 transitions, 99072 flow [2023-12-09 15:10:30,365 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:30,365 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:30,366 INFO L233 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, 1] [2023-12-09 15:10:30,366 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-09 15:10:30,366 INFO L425 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:30,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:30,366 INFO L85 PathProgramCache]: Analyzing trace with hash -951480961, now seen corresponding path program 1 times [2023-12-09 15:10:30,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:30,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969026891] [2023-12-09 15:10:30,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:30,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:30,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:30,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:30,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969026891] [2023-12-09 15:10:30,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969026891] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:30,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:30,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:30,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910393273] [2023-12-09 15:10:30,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:30,499 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:30,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:30,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:30,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:30,500 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:30,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 762 places, 1530 transitions, 99072 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:30,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:30,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:30,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:32,630 INFO L124 PetriNetUnfolderBase]: 497/3733 cut-off events. [2023-12-09 15:10:32,630 INFO L125 PetriNetUnfolderBase]: For 287497/307215 co-relation queries the response was YES. [2023-12-09 15:10:32,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66326 conditions, 3733 events. 497/3733 cut-off events. For 287497/307215 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 41135 event pairs, 85 based on Foata normal form. 68/3661 useless extension candidates. Maximal degree in co-relation 38620. Up to 1534 conditions per place. [2023-12-09 15:10:32,666 INFO L140 encePairwiseOnDemand]: 177/194 looper letters, 110 selfloop transitions, 26 changer transitions 1218/1496 dead transitions. [2023-12-09 15:10:32,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 779 places, 1496 transitions, 99064 flow [2023-12-09 15:10:32,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:10:32,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:10:32,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2842 transitions. [2023-12-09 15:10:32,668 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7710255018990776 [2023-12-09 15:10:32,668 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2842 transitions. [2023-12-09 15:10:32,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2842 transitions. [2023-12-09 15:10:32,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:32,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2842 transitions. [2023-12-09 15:10:32,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 149.57894736842104) internal successors, (2842), 19 states have internal predecessors, (2842), 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) [2023-12-09 15:10:32,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 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) [2023-12-09 15:10:32,672 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 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) [2023-12-09 15:10:32,672 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 604 predicate places. [2023-12-09 15:10:32,672 INFO L500 AbstractCegarLoop]: Abstraction has has 779 places, 1496 transitions, 99064 flow [2023-12-09 15:10:32,673 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:32,673 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:32,673 INFO L233 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, 1] [2023-12-09 15:10:32,673 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-09 15:10:32,673 INFO L425 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:32,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:32,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1692392869, now seen corresponding path program 2 times [2023-12-09 15:10:32,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:32,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753220615] [2023-12-09 15:10:32,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:32,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:32,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:32,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:32,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753220615] [2023-12-09 15:10:32,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753220615] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:32,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:32,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:32,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930700878] [2023-12-09 15:10:32,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:32,787 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:32,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:32,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:32,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:32,788 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:32,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 779 places, 1496 transitions, 99064 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:32,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:32,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:32,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:35,009 INFO L124 PetriNetUnfolderBase]: 518/3885 cut-off events. [2023-12-09 15:10:35,010 INFO L125 PetriNetUnfolderBase]: For 308348/326087 co-relation queries the response was YES. [2023-12-09 15:10:35,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70137 conditions, 3885 events. 518/3885 cut-off events. For 308348/326087 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 43058 event pairs, 94 based on Foata normal form. 59/3804 useless extension candidates. Maximal degree in co-relation 33130. Up to 1591 conditions per place. [2023-12-09 15:10:35,047 INFO L140 encePairwiseOnDemand]: 179/194 looper letters, 106 selfloop transitions, 33 changer transitions 1256/1537 dead transitions. [2023-12-09 15:10:35,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 795 places, 1537 transitions, 104592 flow [2023-12-09 15:10:35,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:10:35,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:10:35,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2528 transitions. [2023-12-09 15:10:35,049 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7665251667677381 [2023-12-09 15:10:35,049 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2528 transitions. [2023-12-09 15:10:35,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2528 transitions. [2023-12-09 15:10:35,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:35,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2528 transitions. [2023-12-09 15:10:35,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 148.7058823529412) internal successors, (2528), 17 states have internal predecessors, (2528), 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) [2023-12-09 15:10:35,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:10:35,053 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:10:35,053 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 620 predicate places. [2023-12-09 15:10:35,053 INFO L500 AbstractCegarLoop]: Abstraction has has 795 places, 1537 transitions, 104592 flow [2023-12-09 15:10:35,054 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:35,054 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:35,054 INFO L233 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, 1] [2023-12-09 15:10:35,054 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-09 15:10:35,054 INFO L425 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:35,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:35,054 INFO L85 PathProgramCache]: Analyzing trace with hash -2145043987, now seen corresponding path program 3 times [2023-12-09 15:10:35,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:35,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297895314] [2023-12-09 15:10:35,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:35,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:35,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:35,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:35,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297895314] [2023-12-09 15:10:35,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297895314] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:35,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:35,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:35,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193945437] [2023-12-09 15:10:35,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:35,172 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:35,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:35,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:35,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:35,173 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:35,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 795 places, 1537 transitions, 104592 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:35,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:35,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:35,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:37,877 INFO L124 PetriNetUnfolderBase]: 519/3904 cut-off events. [2023-12-09 15:10:37,877 INFO L125 PetriNetUnfolderBase]: For 336129/357599 co-relation queries the response was YES. [2023-12-09 15:10:37,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71899 conditions, 3904 events. 519/3904 cut-off events. For 336129/357599 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 43358 event pairs, 97 based on Foata normal form. 48/3810 useless extension candidates. Maximal degree in co-relation 33440. Up to 1594 conditions per place. [2023-12-09 15:10:37,904 INFO L140 encePairwiseOnDemand]: 179/194 looper letters, 80 selfloop transitions, 16 changer transitions 1293/1530 dead transitions. [2023-12-09 15:10:37,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 808 places, 1530 transitions, 106592 flow [2023-12-09 15:10:37,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-09 15:10:37,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-12-09 15:10:37,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2095 transitions. [2023-12-09 15:10:37,906 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7713549337260678 [2023-12-09 15:10:37,906 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2095 transitions. [2023-12-09 15:10:37,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2095 transitions. [2023-12-09 15:10:37,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:37,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2095 transitions. [2023-12-09 15:10:37,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 149.64285714285714) internal successors, (2095), 14 states have internal predecessors, (2095), 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) [2023-12-09 15:10:37,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 194.0) internal successors, (2910), 15 states have internal predecessors, (2910), 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) [2023-12-09 15:10:37,909 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 194.0) internal successors, (2910), 15 states have internal predecessors, (2910), 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) [2023-12-09 15:10:37,909 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 633 predicate places. [2023-12-09 15:10:37,909 INFO L500 AbstractCegarLoop]: Abstraction has has 808 places, 1530 transitions, 106592 flow [2023-12-09 15:10:37,910 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:37,910 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:37,910 INFO L233 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, 1] [2023-12-09 15:10:37,910 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-09 15:10:37,910 INFO L425 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:37,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:37,910 INFO L85 PathProgramCache]: Analyzing trace with hash 276863075, now seen corresponding path program 4 times [2023-12-09 15:10:37,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:37,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796402755] [2023-12-09 15:10:37,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:37,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:38,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:38,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:38,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796402755] [2023-12-09 15:10:38,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796402755] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:38,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:38,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:38,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205015887] [2023-12-09 15:10:38,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:38,014 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:38,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:38,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:38,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:38,015 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:38,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 808 places, 1530 transitions, 106592 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:38,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:38,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:38,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:40,235 INFO L124 PetriNetUnfolderBase]: 539/4080 cut-off events. [2023-12-09 15:10:40,236 INFO L125 PetriNetUnfolderBase]: For 363459/380546 co-relation queries the response was YES. [2023-12-09 15:10:40,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77101 conditions, 4080 events. 539/4080 cut-off events. For 363459/380546 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 45967 event pairs, 81 based on Foata normal form. 73/4010 useless extension candidates. Maximal degree in co-relation 36196. Up to 1676 conditions per place. [2023-12-09 15:10:40,280 INFO L140 encePairwiseOnDemand]: 179/194 looper letters, 121 selfloop transitions, 20 changer transitions 1320/1602 dead transitions. [2023-12-09 15:10:40,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 825 places, 1602 transitions, 114479 flow [2023-12-09 15:10:40,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:10:40,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:10:40,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2693 transitions. [2023-12-09 15:10:40,282 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7711912943871707 [2023-12-09 15:10:40,282 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2693 transitions. [2023-12-09 15:10:40,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2693 transitions. [2023-12-09 15:10:40,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:40,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2693 transitions. [2023-12-09 15:10:40,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 149.61111111111111) internal successors, (2693), 18 states have internal predecessors, (2693), 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) [2023-12-09 15:10:40,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 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) [2023-12-09 15:10:40,286 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 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) [2023-12-09 15:10:40,286 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 650 predicate places. [2023-12-09 15:10:40,286 INFO L500 AbstractCegarLoop]: Abstraction has has 825 places, 1602 transitions, 114479 flow [2023-12-09 15:10:40,286 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:40,286 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:40,287 INFO L233 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, 1] [2023-12-09 15:10:40,287 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-09 15:10:40,287 INFO L425 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:40,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:40,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1732787779, now seen corresponding path program 5 times [2023-12-09 15:10:40,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:40,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362442117] [2023-12-09 15:10:40,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:40,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:40,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:40,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:40,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362442117] [2023-12-09 15:10:40,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362442117] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:40,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:40,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:40,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646196540] [2023-12-09 15:10:40,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:40,404 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:40,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:40,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:40,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:40,405 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:40,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 825 places, 1602 transitions, 114479 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:40,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:40,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:40,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:42,993 INFO L124 PetriNetUnfolderBase]: 559/4167 cut-off events. [2023-12-09 15:10:42,993 INFO L125 PetriNetUnfolderBase]: For 390539/409036 co-relation queries the response was YES. [2023-12-09 15:10:43,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80908 conditions, 4167 events. 559/4167 cut-off events. For 390539/409036 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 46968 event pairs, 84 based on Foata normal form. 36/4057 useless extension candidates. Maximal degree in co-relation 38581. Up to 1726 conditions per place. [2023-12-09 15:10:43,034 INFO L140 encePairwiseOnDemand]: 179/194 looper letters, 133 selfloop transitions, 24 changer transitions 1341/1639 dead transitions. [2023-12-09 15:10:43,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 840 places, 1639 transitions, 119982 flow [2023-12-09 15:10:43,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:10:43,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:10:43,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2385 transitions. [2023-12-09 15:10:43,036 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7683634020618557 [2023-12-09 15:10:43,036 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2385 transitions. [2023-12-09 15:10:43,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2385 transitions. [2023-12-09 15:10:43,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:43,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2385 transitions. [2023-12-09 15:10:43,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 149.0625) internal successors, (2385), 16 states have internal predecessors, (2385), 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) [2023-12-09 15:10:43,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 194.0) internal successors, (3298), 17 states have internal predecessors, (3298), 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) [2023-12-09 15:10:43,039 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 194.0) internal successors, (3298), 17 states have internal predecessors, (3298), 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) [2023-12-09 15:10:43,039 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 665 predicate places. [2023-12-09 15:10:43,040 INFO L500 AbstractCegarLoop]: Abstraction has has 840 places, 1639 transitions, 119982 flow [2023-12-09 15:10:43,040 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:43,040 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:43,040 INFO L233 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, 1] [2023-12-09 15:10:43,040 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-09 15:10:43,040 INFO L425 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:43,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:43,040 INFO L85 PathProgramCache]: Analyzing trace with hash 447882329, now seen corresponding path program 6 times [2023-12-09 15:10:43,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:43,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265447509] [2023-12-09 15:10:43,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:43,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:43,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:43,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:43,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265447509] [2023-12-09 15:10:43,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265447509] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:43,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:43,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:43,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389515619] [2023-12-09 15:10:43,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:43,166 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:43,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:43,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:43,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:43,167 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:43,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 840 places, 1639 transitions, 119982 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:43,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:43,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:43,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:46,027 INFO L124 PetriNetUnfolderBase]: 563/4176 cut-off events. [2023-12-09 15:10:46,028 INFO L125 PetriNetUnfolderBase]: For 420463/440702 co-relation queries the response was YES. [2023-12-09 15:10:46,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83538 conditions, 4176 events. 563/4176 cut-off events. For 420463/440702 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 47099 event pairs, 86 based on Foata normal form. 40/4068 useless extension candidates. Maximal degree in co-relation 39815. Up to 1744 conditions per place. [2023-12-09 15:10:46,070 INFO L140 encePairwiseOnDemand]: 179/194 looper letters, 128 selfloop transitions, 25 changer transitions 1359/1653 dead transitions. [2023-12-09 15:10:46,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 854 places, 1653 transitions, 123911 flow [2023-12-09 15:10:46,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:10:46,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:10:46,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2241 transitions. [2023-12-09 15:10:46,072 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7701030927835052 [2023-12-09 15:10:46,072 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2241 transitions. [2023-12-09 15:10:46,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2241 transitions. [2023-12-09 15:10:46,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:46,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2241 transitions. [2023-12-09 15:10:46,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 149.4) internal successors, (2241), 15 states have internal predecessors, (2241), 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) [2023-12-09 15:10:46,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 194.0) internal successors, (3104), 16 states have internal predecessors, (3104), 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) [2023-12-09 15:10:46,076 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 194.0) internal successors, (3104), 16 states have internal predecessors, (3104), 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) [2023-12-09 15:10:46,076 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 679 predicate places. [2023-12-09 15:10:46,076 INFO L500 AbstractCegarLoop]: Abstraction has has 854 places, 1653 transitions, 123911 flow [2023-12-09 15:10:46,076 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:46,076 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:46,076 INFO L233 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, 1] [2023-12-09 15:10:46,076 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-09 15:10:46,077 INFO L425 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:46,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:46,077 INFO L85 PathProgramCache]: Analyzing trace with hash 525888401, now seen corresponding path program 7 times [2023-12-09 15:10:46,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:46,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933406641] [2023-12-09 15:10:46,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:46,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:46,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:46,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:46,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933406641] [2023-12-09 15:10:46,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933406641] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:46,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:46,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:46,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280412579] [2023-12-09 15:10:46,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:46,235 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:46,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:46,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:46,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:46,236 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:46,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 854 places, 1653 transitions, 123911 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:46,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:46,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:46,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:49,049 INFO L124 PetriNetUnfolderBase]: 565/4246 cut-off events. [2023-12-09 15:10:49,049 INFO L125 PetriNetUnfolderBase]: For 438994/461024 co-relation queries the response was YES. [2023-12-09 15:10:49,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86204 conditions, 4246 events. 565/4246 cut-off events. For 438994/461024 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 48133 event pairs, 91 based on Foata normal form. 42/4143 useless extension candidates. Maximal degree in co-relation 40986. Up to 1759 conditions per place. [2023-12-09 15:10:49,089 INFO L140 encePairwiseOnDemand]: 179/194 looper letters, 125 selfloop transitions, 14 changer transitions 1383/1663 dead transitions. [2023-12-09 15:10:49,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 869 places, 1663 transitions, 127695 flow [2023-12-09 15:10:49,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:10:49,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:10:49,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2387 transitions. [2023-12-09 15:10:49,090 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7690077319587629 [2023-12-09 15:10:49,090 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2387 transitions. [2023-12-09 15:10:49,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2387 transitions. [2023-12-09 15:10:49,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:49,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2387 transitions. [2023-12-09 15:10:49,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 149.1875) internal successors, (2387), 16 states have internal predecessors, (2387), 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) [2023-12-09 15:10:49,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 194.0) internal successors, (3298), 17 states have internal predecessors, (3298), 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) [2023-12-09 15:10:49,094 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 194.0) internal successors, (3298), 17 states have internal predecessors, (3298), 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) [2023-12-09 15:10:49,094 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 694 predicate places. [2023-12-09 15:10:49,094 INFO L500 AbstractCegarLoop]: Abstraction has has 869 places, 1663 transitions, 127695 flow [2023-12-09 15:10:49,095 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:49,095 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:49,095 INFO L233 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, 1] [2023-12-09 15:10:49,095 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-09 15:10:49,095 INFO L425 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:49,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:49,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1903622281, now seen corresponding path program 8 times [2023-12-09 15:10:49,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:49,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642997917] [2023-12-09 15:10:49,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:49,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:49,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:49,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:49,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642997917] [2023-12-09 15:10:49,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642997917] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:49,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:49,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:49,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262442593] [2023-12-09 15:10:49,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:49,215 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:49,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:49,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:49,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:49,216 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:49,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 869 places, 1663 transitions, 127695 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:49,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:49,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:49,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:52,019 INFO L124 PetriNetUnfolderBase]: 568/4306 cut-off events. [2023-12-09 15:10:52,020 INFO L125 PetriNetUnfolderBase]: For 470047/489458 co-relation queries the response was YES. [2023-12-09 15:10:52,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89065 conditions, 4306 events. 568/4306 cut-off events. For 470047/489458 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 49145 event pairs, 80 based on Foata normal form. 51/4212 useless extension candidates. Maximal degree in co-relation 42448. Up to 1779 conditions per place. [2023-12-09 15:10:52,062 INFO L140 encePairwiseOnDemand]: 179/194 looper letters, 115 selfloop transitions, 20 changer transitions 1404/1680 dead transitions. [2023-12-09 15:10:52,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 885 places, 1680 transitions, 131992 flow [2023-12-09 15:10:52,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:10:52,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:10:52,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2529 transitions. [2023-12-09 15:10:52,064 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7668283808368709 [2023-12-09 15:10:52,065 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2529 transitions. [2023-12-09 15:10:52,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2529 transitions. [2023-12-09 15:10:52,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:52,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2529 transitions. [2023-12-09 15:10:52,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 148.76470588235293) internal successors, (2529), 17 states have internal predecessors, (2529), 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) [2023-12-09 15:10:52,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:10:52,068 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:10:52,069 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 710 predicate places. [2023-12-09 15:10:52,069 INFO L500 AbstractCegarLoop]: Abstraction has has 885 places, 1680 transitions, 131992 flow [2023-12-09 15:10:52,069 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:52,069 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:52,069 INFO L233 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, 1] [2023-12-09 15:10:52,069 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-09 15:10:52,069 INFO L425 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:52,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:52,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1033920433, now seen corresponding path program 9 times [2023-12-09 15:10:52,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:52,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670842535] [2023-12-09 15:10:52,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:52,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:52,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:52,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:52,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670842535] [2023-12-09 15:10:52,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670842535] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:52,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:52,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:52,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512047697] [2023-12-09 15:10:52,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:52,176 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:52,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:52,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:52,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:52,178 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:52,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 885 places, 1680 transitions, 131992 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:52,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:52,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:52,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:55,417 INFO L124 PetriNetUnfolderBase]: 572/4312 cut-off events. [2023-12-09 15:10:55,417 INFO L125 PetriNetUnfolderBase]: For 498072/521553 co-relation queries the response was YES. [2023-12-09 15:10:55,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91912 conditions, 4312 events. 572/4312 cut-off events. For 498072/521553 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 49219 event pairs, 97 based on Foata normal form. 50/4215 useless extension candidates. Maximal degree in co-relation 43834. Up to 1802 conditions per place. [2023-12-09 15:10:55,457 INFO L140 encePairwiseOnDemand]: 179/194 looper letters, 110 selfloop transitions, 18 changer transitions 1425/1694 dead transitions. [2023-12-09 15:10:55,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 899 places, 1694 transitions, 136087 flow [2023-12-09 15:10:55,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:10:55,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:10:55,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2242 transitions. [2023-12-09 15:10:55,459 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.770446735395189 [2023-12-09 15:10:55,459 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2242 transitions. [2023-12-09 15:10:55,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2242 transitions. [2023-12-09 15:10:55,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:55,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2242 transitions. [2023-12-09 15:10:55,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 149.46666666666667) internal successors, (2242), 15 states have internal predecessors, (2242), 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) [2023-12-09 15:10:55,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 194.0) internal successors, (3104), 16 states have internal predecessors, (3104), 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) [2023-12-09 15:10:55,463 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 194.0) internal successors, (3104), 16 states have internal predecessors, (3104), 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) [2023-12-09 15:10:55,463 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 724 predicate places. [2023-12-09 15:10:55,463 INFO L500 AbstractCegarLoop]: Abstraction has has 899 places, 1694 transitions, 136087 flow [2023-12-09 15:10:55,463 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:55,463 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:55,463 INFO L233 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, 1] [2023-12-09 15:10:55,463 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-09 15:10:55,463 INFO L425 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:55,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:55,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1337608591, now seen corresponding path program 10 times [2023-12-09 15:10:55,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:55,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607278054] [2023-12-09 15:10:55,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:55,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:55,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:55,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:55,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607278054] [2023-12-09 15:10:55,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607278054] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:55,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:55,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:55,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634024619] [2023-12-09 15:10:55,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:55,578 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:55,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:55,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:55,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:55,579 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:55,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 899 places, 1694 transitions, 136087 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:55,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:55,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:55,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:58,829 INFO L124 PetriNetUnfolderBase]: 575/4280 cut-off events. [2023-12-09 15:10:58,829 INFO L125 PetriNetUnfolderBase]: For 533759/560736 co-relation queries the response was YES. [2023-12-09 15:10:58,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93172 conditions, 4280 events. 575/4280 cut-off events. For 533759/560736 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 48750 event pairs, 100 based on Foata normal form. 43/4179 useless extension candidates. Maximal degree in co-relation 49282. Up to 1786 conditions per place. [2023-12-09 15:10:58,867 INFO L140 encePairwiseOnDemand]: 179/194 looper letters, 84 selfloop transitions, 7 changer transitions 1448/1677 dead transitions. [2023-12-09 15:10:58,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 913 places, 1677 transitions, 137517 flow [2023-12-09 15:10:58,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:10:58,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:10:58,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2240 transitions. [2023-12-09 15:10:58,868 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7697594501718213 [2023-12-09 15:10:58,869 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2240 transitions. [2023-12-09 15:10:58,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2240 transitions. [2023-12-09 15:10:58,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:58,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2240 transitions. [2023-12-09 15:10:58,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 149.33333333333334) internal successors, (2240), 15 states have internal predecessors, (2240), 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) [2023-12-09 15:10:58,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 194.0) internal successors, (3104), 16 states have internal predecessors, (3104), 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) [2023-12-09 15:10:58,872 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 194.0) internal successors, (3104), 16 states have internal predecessors, (3104), 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) [2023-12-09 15:10:58,872 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 738 predicate places. [2023-12-09 15:10:58,872 INFO L500 AbstractCegarLoop]: Abstraction has has 913 places, 1677 transitions, 137517 flow [2023-12-09 15:10:58,872 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:58,872 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:58,872 INFO L233 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, 1] [2023-12-09 15:10:58,873 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-09 15:10:58,873 INFO L425 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:58,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:58,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1916660767, now seen corresponding path program 11 times [2023-12-09 15:10:58,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:58,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25880062] [2023-12-09 15:10:58,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:58,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:58,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:58,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:58,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25880062] [2023-12-09 15:10:58,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25880062] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:58,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:58,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:10:58,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344381133] [2023-12-09 15:10:58,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:58,983 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:10:58,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:58,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:10:58,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:10:58,984 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:10:58,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 913 places, 1677 transitions, 137517 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:10:58,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:58,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:10:58,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:11:02,148 INFO L124 PetriNetUnfolderBase]: 592/4466 cut-off events. [2023-12-09 15:11:02,149 INFO L125 PetriNetUnfolderBase]: For 558094/582728 co-relation queries the response was YES. [2023-12-09 15:11:02,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98569 conditions, 4466 events. 592/4466 cut-off events. For 558094/582728 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 51186 event pairs, 96 based on Foata normal form. 57/4373 useless extension candidates. Maximal degree in co-relation 47486. Up to 1855 conditions per place. [2023-12-09 15:11:02,199 INFO L140 encePairwiseOnDemand]: 182/194 looper letters, 106 selfloop transitions, 20 changer transitions 1476/1740 dead transitions. [2023-12-09 15:11:02,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 930 places, 1740 transitions, 145787 flow [2023-12-09 15:11:02,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:11:02,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:11:02,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2675 transitions. [2023-12-09 15:11:02,201 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.766036655211913 [2023-12-09 15:11:02,201 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2675 transitions. [2023-12-09 15:11:02,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2675 transitions. [2023-12-09 15:11:02,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:11:02,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2675 transitions. [2023-12-09 15:11:02,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 148.61111111111111) internal successors, (2675), 18 states have internal predecessors, (2675), 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) [2023-12-09 15:11:02,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 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) [2023-12-09 15:11:02,204 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 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) [2023-12-09 15:11:02,205 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 755 predicate places. [2023-12-09 15:11:02,205 INFO L500 AbstractCegarLoop]: Abstraction has has 930 places, 1740 transitions, 145787 flow [2023-12-09 15:11:02,205 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:11:02,205 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:11:02,205 INFO L233 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, 1] [2023-12-09 15:11:02,205 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-09 15:11:02,205 INFO L425 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:11:02,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:11:02,205 INFO L85 PathProgramCache]: Analyzing trace with hash -562605721, now seen corresponding path program 12 times [2023-12-09 15:11:02,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:11:02,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653072183] [2023-12-09 15:11:02,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:11:02,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:11:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:11:02,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:11:02,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:11:02,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653072183] [2023-12-09 15:11:02,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653072183] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:11:02,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:11:02,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:11:02,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306060059] [2023-12-09 15:11:02,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:11:02,340 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:11:02,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:11:02,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:11:02,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:11:02,341 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:11:02,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 930 places, 1740 transitions, 145787 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:11:02,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:11:02,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:11:02,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:11:05,695 INFO L124 PetriNetUnfolderBase]: 597/4436 cut-off events. [2023-12-09 15:11:05,695 INFO L125 PetriNetUnfolderBase]: For 558504/583939 co-relation queries the response was YES. [2023-12-09 15:11:05,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100074 conditions, 4436 events. 597/4436 cut-off events. For 558504/583939 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 50784 event pairs, 80 based on Foata normal form. 158/4451 useless extension candidates. Maximal degree in co-relation 48778. Up to 1852 conditions per place. [2023-12-09 15:11:05,730 INFO L140 encePairwiseOnDemand]: 182/194 looper letters, 76 selfloop transitions, 11 changer transitions 1506/1729 dead transitions. [2023-12-09 15:11:05,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 948 places, 1729 transitions, 147397 flow [2023-12-09 15:11:05,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:11:05,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:11:05,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2817 transitions. [2023-12-09 15:11:05,732 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7642430819316333 [2023-12-09 15:11:05,732 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2817 transitions. [2023-12-09 15:11:05,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2817 transitions. [2023-12-09 15:11:05,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:11:05,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2817 transitions. [2023-12-09 15:11:05,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 148.26315789473685) internal successors, (2817), 19 states have internal predecessors, (2817), 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) [2023-12-09 15:11:05,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 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) [2023-12-09 15:11:05,736 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 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) [2023-12-09 15:11:05,736 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 773 predicate places. [2023-12-09 15:11:05,736 INFO L500 AbstractCegarLoop]: Abstraction has has 948 places, 1729 transitions, 147397 flow [2023-12-09 15:11:05,736 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:11:05,737 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:11:05,737 INFO L233 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, 1] [2023-12-09 15:11:05,737 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-09 15:11:05,737 INFO L425 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:11:05,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:11:05,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1181460215, now seen corresponding path program 13 times [2023-12-09 15:11:05,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:11:05,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231924006] [2023-12-09 15:11:05,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:11:05,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:11:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:11:05,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:11:05,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:11:05,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231924006] [2023-12-09 15:11:05,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231924006] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:11:05,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:11:05,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:11:05,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77965152] [2023-12-09 15:11:05,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:11:05,854 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:11:05,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:11:05,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:11:05,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:11:05,855 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:11:05,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 948 places, 1729 transitions, 147397 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:11:05,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:11:05,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:11:05,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:11:09,039 INFO L124 PetriNetUnfolderBase]: 599/4493 cut-off events. [2023-12-09 15:11:09,039 INFO L125 PetriNetUnfolderBase]: For 571560/590800 co-relation queries the response was YES. [2023-12-09 15:11:09,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103004 conditions, 4493 events. 599/4493 cut-off events. For 571560/590800 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 51972 event pairs, 68 based on Foata normal form. 65/4409 useless extension candidates. Maximal degree in co-relation 66153. Up to 1865 conditions per place. [2023-12-09 15:11:09,078 INFO L140 encePairwiseOnDemand]: 182/194 looper letters, 70 selfloop transitions, 13 changer transitions 1528/1746 dead transitions. [2023-12-09 15:11:09,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 964 places, 1746 transitions, 151996 flow [2023-12-09 15:11:09,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:11:09,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:11:09,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2506 transitions. [2023-12-09 15:11:09,080 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7598544572468162 [2023-12-09 15:11:09,080 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2506 transitions. [2023-12-09 15:11:09,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2506 transitions. [2023-12-09 15:11:09,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:11:09,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2506 transitions. [2023-12-09 15:11:09,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 147.41176470588235) internal successors, (2506), 17 states have internal predecessors, (2506), 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) [2023-12-09 15:11:09,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:11:09,084 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 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) [2023-12-09 15:11:09,084 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 789 predicate places. [2023-12-09 15:11:09,084 INFO L500 AbstractCegarLoop]: Abstraction has has 964 places, 1746 transitions, 151996 flow [2023-12-09 15:11:09,085 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:11:09,085 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:11:09,085 INFO L233 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, 1] [2023-12-09 15:11:09,085 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-09 15:11:09,085 INFO L425 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:11:09,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:11:09,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1319694577, now seen corresponding path program 14 times [2023-12-09 15:11:09,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:11:09,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755603531] [2023-12-09 15:11:09,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:11:09,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:11:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:11:09,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:11:09,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:11:09,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755603531] [2023-12-09 15:11:09,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755603531] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:11:09,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:11:09,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:11:09,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359077113] [2023-12-09 15:11:09,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:11:09,200 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:11:09,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:11:09,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:11:09,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:11:09,201 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:11:09,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 964 places, 1746 transitions, 151996 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:11:09,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:11:09,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:11:09,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:11:12,850 INFO L124 PetriNetUnfolderBase]: 665/4799 cut-off events. [2023-12-09 15:11:12,850 INFO L125 PetriNetUnfolderBase]: For 626646/650477 co-relation queries the response was YES. [2023-12-09 15:11:12,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113647 conditions, 4799 events. 665/4799 cut-off events. For 626646/650477 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 55879 event pairs, 62 based on Foata normal form. 108/4752 useless extension candidates. Maximal degree in co-relation 56324. Up to 1993 conditions per place. [2023-12-09 15:11:12,896 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 65 selfloop transitions, 11 changer transitions 1658/1869 dead transitions. [2023-12-09 15:11:12,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 978 places, 1869 transitions, 167024 flow [2023-12-09 15:11:12,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:11:12,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:11:12,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2241 transitions. [2023-12-09 15:11:12,897 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7701030927835052 [2023-12-09 15:11:12,897 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2241 transitions. [2023-12-09 15:11:12,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2241 transitions. [2023-12-09 15:11:12,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:11:12,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2241 transitions. [2023-12-09 15:11:12,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 149.4) internal successors, (2241), 15 states have internal predecessors, (2241), 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) [2023-12-09 15:11:12,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 194.0) internal successors, (3104), 16 states have internal predecessors, (3104), 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) [2023-12-09 15:11:12,901 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 194.0) internal successors, (3104), 16 states have internal predecessors, (3104), 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) [2023-12-09 15:11:12,901 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 803 predicate places. [2023-12-09 15:11:12,901 INFO L500 AbstractCegarLoop]: Abstraction has has 978 places, 1869 transitions, 167024 flow [2023-12-09 15:11:12,901 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:11:12,901 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:11:12,901 INFO L233 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, 1] [2023-12-09 15:11:12,901 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-09 15:11:12,902 INFO L425 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:11:12,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:11:12,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1085059967, now seen corresponding path program 15 times [2023-12-09 15:11:12,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:11:12,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937623097] [2023-12-09 15:11:12,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:11:12,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:11:12,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:11:13,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:11:13,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:11:13,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937623097] [2023-12-09 15:11:13,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937623097] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:11:13,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:11:13,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:11:13,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583048089] [2023-12-09 15:11:13,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:11:13,012 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:11:13,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:11:13,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:11:13,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:11:13,013 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2023-12-09 15:11:13,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 978 places, 1869 transitions, 167024 flow. Second operand has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:11:13,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:11:13,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2023-12-09 15:11:13,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:11:17,196 INFO L124 PetriNetUnfolderBase]: 664/4781 cut-off events. [2023-12-09 15:11:17,196 INFO L125 PetriNetUnfolderBase]: For 642358/662888 co-relation queries the response was YES. [2023-12-09 15:11:17,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115057 conditions, 4781 events. 664/4781 cut-off events. For 642358/662888 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 55774 event pairs, 65 based on Foata normal form. 115/4748 useless extension candidates. Maximal degree in co-relation 57507. Up to 1975 conditions per place. [2023-12-09 15:11:17,248 INFO L140 encePairwiseOnDemand]: 178/194 looper letters, 40 selfloop transitions, 0 changer transitions 1681/1852 dead transitions. [2023-12-09 15:11:17,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 992 places, 1852 transitions, 168634 flow [2023-12-09 15:11:17,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:11:17,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:11:17,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2240 transitions. [2023-12-09 15:11:17,250 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7697594501718213 [2023-12-09 15:11:17,250 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2240 transitions. [2023-12-09 15:11:17,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2240 transitions. [2023-12-09 15:11:17,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:11:17,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2240 transitions. [2023-12-09 15:11:17,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 149.33333333333334) internal successors, (2240), 15 states have internal predecessors, (2240), 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) [2023-12-09 15:11:17,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 194.0) internal successors, (3104), 16 states have internal predecessors, (3104), 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) [2023-12-09 15:11:17,253 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 194.0) internal successors, (3104), 16 states have internal predecessors, (3104), 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) [2023-12-09 15:11:17,253 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 817 predicate places. [2023-12-09 15:11:17,253 INFO L500 AbstractCegarLoop]: Abstraction has has 992 places, 1852 transitions, 168634 flow [2023-12-09 15:11:17,254 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.5) internal successors, (1455), 10 states have internal predecessors, (1455), 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) [2023-12-09 15:11:17,254 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:11:17,254 INFO L233 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:11:17,254 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-09 15:11:17,254 INFO L425 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:11:17,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:11:17,254 INFO L85 PathProgramCache]: Analyzing trace with hash 726520913, now seen corresponding path program 1 times [2023-12-09 15:11:17,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:11:17,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166975644] [2023-12-09 15:11:17,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:11:17,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:11:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:11:17,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:11:17,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:11:17,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166975644] [2023-12-09 15:11:17,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166975644] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:11:17,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:11:17,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-09 15:11:17,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782651368] [2023-12-09 15:11:17,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:11:17,505 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-09 15:11:17,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:11:17,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-09 15:11:17,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-09 15:11:17,507 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 194 [2023-12-09 15:11:17,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 992 places, 1852 transitions, 168634 flow. Second operand has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:11:17,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:11:17,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 194 [2023-12-09 15:11:17,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:11:23,922 INFO L124 PetriNetUnfolderBase]: 1494/6981 cut-off events. [2023-12-09 15:11:23,922 INFO L125 PetriNetUnfolderBase]: For 1059770/1081231 co-relation queries the response was YES. [2023-12-09 15:11:23,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155256 conditions, 6981 events. 1494/6981 cut-off events. For 1059770/1081231 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 80701 event pairs, 462 based on Foata normal form. 33/6777 useless extension candidates. Maximal degree in co-relation 87545. Up to 3612 conditions per place. [2023-12-09 15:11:24,003 INFO L140 encePairwiseOnDemand]: 169/194 looper letters, 193 selfloop transitions, 9 changer transitions 1770/2089 dead transitions. [2023-12-09 15:11:24,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1039 places, 2089 transitions, 187221 flow [2023-12-09 15:11:24,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-09 15:11:24,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-12-09 15:11:24,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 6402 transitions. [2023-12-09 15:11:24,007 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6875 [2023-12-09 15:11:24,007 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 6402 transitions. [2023-12-09 15:11:24,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 6402 transitions. [2023-12-09 15:11:24,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:11:24,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 6402 transitions. [2023-12-09 15:11:24,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 133.375) internal successors, (6402), 48 states have internal predecessors, (6402), 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) [2023-12-09 15:11:24,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 194.0) internal successors, (9506), 49 states have internal predecessors, (9506), 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) [2023-12-09 15:11:24,015 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 194.0) internal successors, (9506), 49 states have internal predecessors, (9506), 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) [2023-12-09 15:11:24,016 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 864 predicate places. [2023-12-09 15:11:24,016 INFO L500 AbstractCegarLoop]: Abstraction has has 1039 places, 2089 transitions, 187221 flow [2023-12-09 15:11:24,016 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:11:24,016 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:11:24,016 INFO L233 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:11:24,016 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-09 15:11:24,016 INFO L425 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:11:24,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:11:24,017 INFO L85 PathProgramCache]: Analyzing trace with hash 722573189, now seen corresponding path program 2 times [2023-12-09 15:11:24,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:11:24,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257430960] [2023-12-09 15:11:24,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:11:24,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:11:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:11:24,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:11:24,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:11:24,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257430960] [2023-12-09 15:11:24,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257430960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:11:24,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:11:24,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-09 15:11:24,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622142581] [2023-12-09 15:11:24,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:11:24,225 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-09 15:11:24,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:11:24,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-09 15:11:24,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2023-12-09 15:11:24,227 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 194 [2023-12-09 15:11:24,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1039 places, 2089 transitions, 187221 flow. Second operand has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:11:24,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:11:24,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 194 [2023-12-09 15:11:24,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:11:31,640 INFO L124 PetriNetUnfolderBase]: 1553/7134 cut-off events. [2023-12-09 15:11:31,641 INFO L125 PetriNetUnfolderBase]: For 1121464/1144416 co-relation queries the response was YES. [2023-12-09 15:11:31,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164706 conditions, 7134 events. 1553/7134 cut-off events. For 1121464/1144416 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 82470 event pairs, 456 based on Foata normal form. 74/6978 useless extension candidates. Maximal degree in co-relation 94303. Up to 3612 conditions per place. [2023-12-09 15:11:31,733 INFO L140 encePairwiseOnDemand]: 171/194 looper letters, 231 selfloop transitions, 53 changer transitions 1836/2237 dead transitions. [2023-12-09 15:11:31,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1076 places, 2237 transitions, 201125 flow [2023-12-09 15:11:31,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-09 15:11:31,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2023-12-09 15:11:31,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 5062 transitions. [2023-12-09 15:11:31,736 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6866521975040695 [2023-12-09 15:11:31,736 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 5062 transitions. [2023-12-09 15:11:31,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 5062 transitions. [2023-12-09 15:11:31,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:11:31,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 5062 transitions. [2023-12-09 15:11:31,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 133.21052631578948) internal successors, (5062), 38 states have internal predecessors, (5062), 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) [2023-12-09 15:11:31,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 194.0) internal successors, (7566), 39 states have internal predecessors, (7566), 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) [2023-12-09 15:11:31,743 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 194.0) internal successors, (7566), 39 states have internal predecessors, (7566), 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) [2023-12-09 15:11:31,744 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 901 predicate places. [2023-12-09 15:11:31,744 INFO L500 AbstractCegarLoop]: Abstraction has has 1076 places, 2237 transitions, 201125 flow [2023-12-09 15:11:31,744 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:11:31,744 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:11:31,744 INFO L233 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:11:31,744 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-09 15:11:31,744 INFO L425 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:11:31,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:11:31,745 INFO L85 PathProgramCache]: Analyzing trace with hash -136790437, now seen corresponding path program 3 times [2023-12-09 15:11:31,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:11:31,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409168634] [2023-12-09 15:11:31,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:11:31,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:11:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:11:31,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:11:31,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:11:31,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409168634] [2023-12-09 15:11:31,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409168634] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:11:31,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:11:31,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-09 15:11:31,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130605742] [2023-12-09 15:11:31,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:11:31,943 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-09 15:11:31,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:11:31,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-09 15:11:31,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-12-09 15:11:31,945 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 194 [2023-12-09 15:11:31,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1076 places, 2237 transitions, 201125 flow. Second operand has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:11:31,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:11:31,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 194 [2023-12-09 15:11:31,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:11:42,055 INFO L124 PetriNetUnfolderBase]: 1879/8982 cut-off events. [2023-12-09 15:11:42,056 INFO L125 PetriNetUnfolderBase]: For 1382287/1407948 co-relation queries the response was YES. [2023-12-09 15:11:42,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205837 conditions, 8982 events. 1879/8982 cut-off events. For 1382287/1407948 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 104306 event pairs, 408 based on Foata normal form. 120/8787 useless extension candidates. Maximal degree in co-relation 117406. Up to 4047 conditions per place. [2023-12-09 15:11:42,166 INFO L140 encePairwiseOnDemand]: 163/194 looper letters, 673 selfloop transitions, 207 changer transitions 1932/2929 dead transitions. [2023-12-09 15:11:42,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1145 places, 2929 transitions, 257568 flow [2023-12-09 15:11:42,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-12-09 15:11:42,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2023-12-09 15:11:42,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 9379 transitions. [2023-12-09 15:11:42,170 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6906480117820324 [2023-12-09 15:11:42,171 INFO L72 ComplementDD]: Start complementDD. Operand 70 states and 9379 transitions. [2023-12-09 15:11:42,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 9379 transitions. [2023-12-09 15:11:42,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:11:42,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 70 states and 9379 transitions. [2023-12-09 15:11:42,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 71 states, 70 states have (on average 133.9857142857143) internal successors, (9379), 70 states have internal predecessors, (9379), 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) [2023-12-09 15:11:42,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 71 states, 71 states have (on average 194.0) internal successors, (13774), 71 states have internal predecessors, (13774), 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) [2023-12-09 15:11:42,184 INFO L81 ComplementDD]: Finished complementDD. Result has 71 states, 71 states have (on average 194.0) internal successors, (13774), 71 states have internal predecessors, (13774), 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) [2023-12-09 15:11:42,184 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 970 predicate places. [2023-12-09 15:11:42,184 INFO L500 AbstractCegarLoop]: Abstraction has has 1145 places, 2929 transitions, 257568 flow [2023-12-09 15:11:42,185 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:11:42,185 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:11:42,185 INFO L233 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:11:42,185 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-09 15:11:42,185 INFO L425 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:11:42,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:11:42,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1160577275, now seen corresponding path program 4 times [2023-12-09 15:11:42,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:11:42,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075523816] [2023-12-09 15:11:42,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:11:42,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:11:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:11:42,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:11:42,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:11:42,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075523816] [2023-12-09 15:11:42,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075523816] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:11:42,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:11:42,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-09 15:11:42,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008759549] [2023-12-09 15:11:42,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:11:42,415 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-09 15:11:42,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:11:42,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-09 15:11:42,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-09 15:11:42,416 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 194 [2023-12-09 15:11:42,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1145 places, 2929 transitions, 257568 flow. Second operand has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:11:42,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:11:42,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 194 [2023-12-09 15:11:42,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:11:55,643 INFO L124 PetriNetUnfolderBase]: 1936/9280 cut-off events. [2023-12-09 15:11:55,643 INFO L125 PetriNetUnfolderBase]: For 1456067/1481485 co-relation queries the response was YES. [2023-12-09 15:11:55,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218596 conditions, 9280 events. 1936/9280 cut-off events. For 1456067/1481485 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 108569 event pairs, 409 based on Foata normal form. 99/9070 useless extension candidates. Maximal degree in co-relation 124876. Up to 4049 conditions per place. [2023-12-09 15:11:55,903 INFO L140 encePairwiseOnDemand]: 171/194 looper letters, 811 selfloop transitions, 154 changer transitions 2015/3097 dead transitions. [2023-12-09 15:11:55,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1189 places, 3097 transitions, 276439 flow [2023-12-09 15:11:55,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-09 15:11:55,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-12-09 15:11:55,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 5996 transitions. [2023-12-09 15:11:55,906 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6868270332187858 [2023-12-09 15:11:55,906 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 5996 transitions. [2023-12-09 15:11:55,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 5996 transitions. [2023-12-09 15:11:55,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:11:55,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 5996 transitions. [2023-12-09 15:11:55,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 133.24444444444444) internal successors, (5996), 45 states have internal predecessors, (5996), 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) [2023-12-09 15:11:55,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 194.0) internal successors, (8924), 46 states have internal predecessors, (8924), 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) [2023-12-09 15:11:55,915 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 194.0) internal successors, (8924), 46 states have internal predecessors, (8924), 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) [2023-12-09 15:11:55,915 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 1014 predicate places. [2023-12-09 15:11:55,915 INFO L500 AbstractCegarLoop]: Abstraction has has 1189 places, 3097 transitions, 276439 flow [2023-12-09 15:11:55,915 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:11:55,915 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:11:55,915 INFO L233 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:11:55,916 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-09 15:11:55,916 INFO L425 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:11:55,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:11:55,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1605028013, now seen corresponding path program 5 times [2023-12-09 15:11:55,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:11:55,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067826894] [2023-12-09 15:11:55,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:11:55,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:11:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:11:56,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:11:56,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:11:56,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067826894] [2023-12-09 15:11:56,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067826894] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:11:56,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:11:56,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-09 15:11:56,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942196848] [2023-12-09 15:11:56,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:11:56,123 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-09 15:11:56,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:11:56,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-09 15:11:56,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-09 15:11:56,124 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 194 [2023-12-09 15:11:56,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1189 places, 3097 transitions, 276439 flow. Second operand has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:11:56,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:11:56,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 194 [2023-12-09 15:11:56,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:12:09,643 INFO L124 PetriNetUnfolderBase]: 1955/9376 cut-off events. [2023-12-09 15:12:09,643 INFO L125 PetriNetUnfolderBase]: For 1535066/1565944 co-relation queries the response was YES. [2023-12-09 15:12:09,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227084 conditions, 9376 events. 1955/9376 cut-off events. For 1535066/1565944 co-relation queries the response was YES. Maximal size of possible extension queue 502. Compared 109969 event pairs, 417 based on Foata normal form. 107/9165 useless extension candidates. Maximal degree in co-relation 129960. Up to 4048 conditions per place. [2023-12-09 15:12:09,770 INFO L140 encePairwiseOnDemand]: 171/194 looper letters, 801 selfloop transitions, 155 changer transitions 2087/3160 dead transitions. [2023-12-09 15:12:09,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1229 places, 3160 transitions, 287702 flow [2023-12-09 15:12:09,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-09 15:12:09,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2023-12-09 15:12:09,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 5456 transitions. [2023-12-09 15:12:09,773 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6859441790294192 [2023-12-09 15:12:09,773 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 5456 transitions. [2023-12-09 15:12:09,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 5456 transitions. [2023-12-09 15:12:09,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:12:09,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 5456 transitions. [2023-12-09 15:12:09,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 133.0731707317073) internal successors, (5456), 41 states have internal predecessors, (5456), 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) [2023-12-09 15:12:09,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 194.0) internal successors, (8148), 42 states have internal predecessors, (8148), 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) [2023-12-09 15:12:09,781 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 194.0) internal successors, (8148), 42 states have internal predecessors, (8148), 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) [2023-12-09 15:12:09,781 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 1054 predicate places. [2023-12-09 15:12:09,781 INFO L500 AbstractCegarLoop]: Abstraction has has 1229 places, 3160 transitions, 287702 flow [2023-12-09 15:12:09,782 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:12:09,782 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:12:09,782 INFO L233 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:12:09,782 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-09 15:12:09,782 INFO L425 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:12:09,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:12:09,782 INFO L85 PathProgramCache]: Analyzing trace with hash -381187847, now seen corresponding path program 6 times [2023-12-09 15:12:09,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:12:09,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104538579] [2023-12-09 15:12:09,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:12:09,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:12:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:12:10,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:12:10,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:12:10,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104538579] [2023-12-09 15:12:10,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104538579] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:12:10,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:12:10,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-09 15:12:10,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175734836] [2023-12-09 15:12:10,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:12:10,024 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-09 15:12:10,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:12:10,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-09 15:12:10,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-09 15:12:10,025 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 194 [2023-12-09 15:12:10,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1229 places, 3160 transitions, 287702 flow. Second operand has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:12:10,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:12:10,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 194 [2023-12-09 15:12:10,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:12:24,201 INFO L124 PetriNetUnfolderBase]: 1970/9428 cut-off events. [2023-12-09 15:12:24,201 INFO L125 PetriNetUnfolderBase]: For 1575038/1608630 co-relation queries the response was YES. [2023-12-09 15:12:24,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235291 conditions, 9428 events. 1970/9428 cut-off events. For 1575038/1608630 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 110629 event pairs, 413 based on Foata normal form. 118/9222 useless extension candidates. Maximal degree in co-relation 134802. Up to 4046 conditions per place. [2023-12-09 15:12:24,354 INFO L140 encePairwiseOnDemand]: 171/194 looper letters, 794 selfloop transitions, 153 changer transitions 2151/3215 dead transitions. [2023-12-09 15:12:24,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1263 places, 3215 transitions, 298472 flow [2023-12-09 15:12:24,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-09 15:12:24,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2023-12-09 15:12:24,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 4677 transitions. [2023-12-09 15:12:24,357 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6888070692194403 [2023-12-09 15:12:24,357 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 4677 transitions. [2023-12-09 15:12:24,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 4677 transitions. [2023-12-09 15:12:24,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:12:24,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 4677 transitions. [2023-12-09 15:12:24,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 133.62857142857143) internal successors, (4677), 35 states have internal predecessors, (4677), 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) [2023-12-09 15:12:24,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 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) [2023-12-09 15:12:24,365 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 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) [2023-12-09 15:12:24,365 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 1088 predicate places. [2023-12-09 15:12:24,365 INFO L500 AbstractCegarLoop]: Abstraction has has 1263 places, 3215 transitions, 298472 flow [2023-12-09 15:12:24,365 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:12:24,366 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:12:24,366 INFO L233 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:12:24,366 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-09 15:12:24,366 INFO L425 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:12:24,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:12:24,366 INFO L85 PathProgramCache]: Analyzing trace with hash 466975545, now seen corresponding path program 7 times [2023-12-09 15:12:24,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:12:24,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157955531] [2023-12-09 15:12:24,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:12:24,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:12:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:12:24,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:12:24,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:12:24,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157955531] [2023-12-09 15:12:24,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157955531] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:12:24,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:12:24,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-09 15:12:24,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149721814] [2023-12-09 15:12:24,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:12:24,563 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-09 15:12:24,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:12:24,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-09 15:12:24,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-09 15:12:24,564 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 194 [2023-12-09 15:12:24,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1263 places, 3215 transitions, 298472 flow. Second operand has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:12:24,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:12:24,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 194 [2023-12-09 15:12:24,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:12:40,233 INFO L124 PetriNetUnfolderBase]: 2050/9875 cut-off events. [2023-12-09 15:12:40,234 INFO L125 PetriNetUnfolderBase]: For 1696296/1731974 co-relation queries the response was YES. [2023-12-09 15:12:40,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252945 conditions, 9875 events. 2050/9875 cut-off events. For 1696296/1731974 co-relation queries the response was YES. Maximal size of possible extension queue 516. Compared 117151 event pairs, 404 based on Foata normal form. 98/9637 useless extension candidates. Maximal degree in co-relation 142959. Up to 4047 conditions per place. [2023-12-09 15:12:40,360 INFO L140 encePairwiseOnDemand]: 168/194 looper letters, 916 selfloop transitions, 179 changer transitions 2215/3427 dead transitions. [2023-12-09 15:12:40,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1294 places, 3427 transitions, 322139 flow [2023-12-09 15:12:40,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-09 15:12:40,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-12-09 15:12:40,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 4374 transitions. [2023-12-09 15:12:40,362 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7045747422680413 [2023-12-09 15:12:40,362 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 4374 transitions. [2023-12-09 15:12:40,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 4374 transitions. [2023-12-09 15:12:40,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:12:40,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 4374 transitions. [2023-12-09 15:12:40,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 136.6875) internal successors, (4374), 32 states have internal predecessors, (4374), 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) [2023-12-09 15:12:40,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 194.0) internal successors, (6402), 33 states have internal predecessors, (6402), 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) [2023-12-09 15:12:40,369 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 194.0) internal successors, (6402), 33 states have internal predecessors, (6402), 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) [2023-12-09 15:12:40,369 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 1119 predicate places. [2023-12-09 15:12:40,369 INFO L500 AbstractCegarLoop]: Abstraction has has 1294 places, 3427 transitions, 322139 flow [2023-12-09 15:12:40,369 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:12:40,369 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:12:40,369 INFO L233 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:12:40,369 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-09 15:12:40,370 INFO L425 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:12:40,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:12:40,370 INFO L85 PathProgramCache]: Analyzing trace with hash -417467033, now seen corresponding path program 8 times [2023-12-09 15:12:40,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:12:40,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182996425] [2023-12-09 15:12:40,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:12:40,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:12:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:12:40,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:12:40,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:12:40,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182996425] [2023-12-09 15:12:40,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182996425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:12:40,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:12:40,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-09 15:12:40,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250527529] [2023-12-09 15:12:40,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:12:40,556 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-09 15:12:40,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:12:40,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-09 15:12:40,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-09 15:12:40,558 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 194 [2023-12-09 15:12:40,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1294 places, 3427 transitions, 322139 flow. Second operand has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:12:40,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:12:40,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 194 [2023-12-09 15:12:40,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:12:58,376 INFO L124 PetriNetUnfolderBase]: 2050/9897 cut-off events. [2023-12-09 15:12:58,376 INFO L125 PetriNetUnfolderBase]: For 1736892/1775381 co-relation queries the response was YES. [2023-12-09 15:12:58,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258967 conditions, 9897 events. 2050/9897 cut-off events. For 1736892/1775381 co-relation queries the response was YES. Maximal size of possible extension queue 524. Compared 117506 event pairs, 409 based on Foata normal form. 100/9665 useless extension candidates. Maximal degree in co-relation 147145. Up to 4049 conditions per place. [2023-12-09 15:12:58,507 INFO L140 encePairwiseOnDemand]: 168/194 looper letters, 879 selfloop transitions, 156 changer transitions 2272/3424 dead transitions. [2023-12-09 15:12:58,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1328 places, 3424 transitions, 328331 flow [2023-12-09 15:12:58,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-09 15:12:58,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2023-12-09 15:12:58,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 4762 transitions. [2023-12-09 15:12:58,510 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7013254786450662 [2023-12-09 15:12:58,510 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 4762 transitions. [2023-12-09 15:12:58,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 4762 transitions. [2023-12-09 15:12:58,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:12:58,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 4762 transitions. [2023-12-09 15:12:58,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 136.05714285714285) internal successors, (4762), 35 states have internal predecessors, (4762), 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) [2023-12-09 15:12:58,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 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) [2023-12-09 15:12:58,517 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 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) [2023-12-09 15:12:58,517 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 1153 predicate places. [2023-12-09 15:12:58,517 INFO L500 AbstractCegarLoop]: Abstraction has has 1328 places, 3424 transitions, 328331 flow [2023-12-09 15:12:58,517 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:12:58,517 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:12:58,517 INFO L233 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:12:58,517 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-09 15:12:58,518 INFO L425 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:12:58,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:12:58,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1009845779, now seen corresponding path program 9 times [2023-12-09 15:12:58,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:12:58,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708102625] [2023-12-09 15:12:58,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:12:58,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:12:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:12:58,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:12:58,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:12:58,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708102625] [2023-12-09 15:12:58,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708102625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:12:58,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:12:58,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-09 15:12:58,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25074347] [2023-12-09 15:12:58,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:12:58,708 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-09 15:12:58,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:12:58,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-09 15:12:58,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-12-09 15:12:58,709 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 194 [2023-12-09 15:12:58,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1328 places, 3424 transitions, 328331 flow. Second operand has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:12:58,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:12:58,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 194 [2023-12-09 15:12:58,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:15,612 INFO L124 PetriNetUnfolderBase]: 2129/10098 cut-off events. [2023-12-09 15:13:15,612 INFO L125 PetriNetUnfolderBase]: For 1818878/1863559 co-relation queries the response was YES. [2023-12-09 15:13:15,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273947 conditions, 10098 events. 2129/10098 cut-off events. For 1818878/1863559 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 119884 event pairs, 417 based on Foata normal form. 102/9866 useless extension candidates. Maximal degree in co-relation 158053. Up to 4047 conditions per place. [2023-12-09 15:13:15,762 INFO L140 encePairwiseOnDemand]: 171/194 looper letters, 1015 selfloop transitions, 143 changer transitions 2336/3611 dead transitions. [2023-12-09 15:13:15,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1362 places, 3611 transitions, 352311 flow [2023-12-09 15:13:15,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-09 15:13:15,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2023-12-09 15:13:15,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 4682 transitions. [2023-12-09 15:13:15,765 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6895434462444772 [2023-12-09 15:13:15,765 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 4682 transitions. [2023-12-09 15:13:15,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 4682 transitions. [2023-12-09 15:13:15,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:15,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 4682 transitions. [2023-12-09 15:13:15,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 133.77142857142857) internal successors, (4682), 35 states have internal predecessors, (4682), 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) [2023-12-09 15:13:15,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 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) [2023-12-09 15:13:15,772 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 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) [2023-12-09 15:13:15,772 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 1187 predicate places. [2023-12-09 15:13:15,772 INFO L500 AbstractCegarLoop]: Abstraction has has 1362 places, 3611 transitions, 352311 flow [2023-12-09 15:13:15,772 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:13:15,772 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:15,772 INFO L233 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:15,772 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-12-09 15:13:15,772 INFO L425 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:15,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:15,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1452620015, now seen corresponding path program 10 times [2023-12-09 15:13:15,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:15,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653973222] [2023-12-09 15:13:15,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:15,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:15,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:15,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:15,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653973222] [2023-12-09 15:13:15,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653973222] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:15,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:15,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-09 15:13:15,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031642337] [2023-12-09 15:13:15,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:15,976 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-09 15:13:15,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:15,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-09 15:13:15,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-09 15:13:15,977 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 194 [2023-12-09 15:13:15,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1362 places, 3611 transitions, 352311 flow. Second operand has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:13:15,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:15,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 194 [2023-12-09 15:13:15,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:35,904 INFO L124 PetriNetUnfolderBase]: 2165/10301 cut-off events. [2023-12-09 15:13:35,904 INFO L125 PetriNetUnfolderBase]: For 1892172/1935854 co-relation queries the response was YES. [2023-12-09 15:13:35,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286487 conditions, 10301 events. 2165/10301 cut-off events. For 1892172/1935854 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 122738 event pairs, 418 based on Foata normal form. 106/10073 useless extension candidates. Maximal degree in co-relation 164581. Up to 4141 conditions per place. [2023-12-09 15:13:36,059 INFO L140 encePairwiseOnDemand]: 171/194 looper letters, 1045 selfloop transitions, 153 changer transitions 2419/3734 dead transitions. [2023-12-09 15:13:36,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1406 places, 3734 transitions, 370652 flow [2023-12-09 15:13:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-09 15:13:36,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-12-09 15:13:36,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 5994 transitions. [2023-12-09 15:13:36,062 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6865979381443299 [2023-12-09 15:13:36,062 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 5994 transitions. [2023-12-09 15:13:36,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 5994 transitions. [2023-12-09 15:13:36,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:36,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 5994 transitions. [2023-12-09 15:13:36,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 133.2) internal successors, (5994), 45 states have internal predecessors, (5994), 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) [2023-12-09 15:13:36,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 194.0) internal successors, (8924), 46 states have internal predecessors, (8924), 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) [2023-12-09 15:13:36,070 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 194.0) internal successors, (8924), 46 states have internal predecessors, (8924), 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) [2023-12-09 15:13:36,071 INFO L308 CegarLoopForPetriNet]: 175 programPoint places, 1231 predicate places. [2023-12-09 15:13:36,071 INFO L500 AbstractCegarLoop]: Abstraction has has 1406 places, 3734 transitions, 370652 flow [2023-12-09 15:13:36,071 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:13:36,071 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:36,071 INFO L233 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:36,071 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-09 15:13:36,071 INFO L425 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:36,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:36,072 INFO L85 PathProgramCache]: Analyzing trace with hash -782592689, now seen corresponding path program 11 times [2023-12-09 15:13:36,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:36,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146677647] [2023-12-09 15:13:36,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:36,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:36,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:36,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:36,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146677647] [2023-12-09 15:13:36,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146677647] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:36,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:36,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-09 15:13:36,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573186757] [2023-12-09 15:13:36,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:36,404 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-09 15:13:36,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:36,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-09 15:13:36,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-12-09 15:13:36,405 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 194 [2023-12-09 15:13:36,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1406 places, 3734 transitions, 370652 flow. Second operand has 14 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 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) [2023-12-09 15:13:36,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:36,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 194 [2023-12-09 15:13:36,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-12-09 15:13:54,575 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 15:13:54,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-09 15:13:54,608 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-12-09 15:13:54,608 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-09 15:13:54,609 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (14states, 127/194 universal loopers) in iteration 61,while PetriNetUnfolder was constructing finite prefix that currently has 240402 conditions, 9270 events (2070/9269 cut-off events. For 1888605/1935354 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 114190 event pairs, 415 based on Foata normal form. 82/9184 useless extension candidates. Maximal degree in co-relation 162069. Up to 3743 conditions per place.). [2023-12-09 15:13:54,610 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-12-09 15:13:54,610 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-12-09 15:13:54,611 INFO L457 BasicCegarLoop]: Path program histogram: [20, 15, 15, 11] [2023-12-09 15:13:54,614 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:13:54,614 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:13:54,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:13:54 BasicIcfg [2023-12-09 15:13:54,617 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:13:54,618 INFO L158 Benchmark]: Toolchain (without parser) took 247354.93ms. Allocated memory was 228.6MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 190.6MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-09 15:13:54,619 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory was 143.0MB in the beginning and 142.8MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:13:54,619 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.32ms. Allocated memory is still 228.6MB. Free memory was 190.1MB in the beginning and 178.6MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-09 15:13:54,619 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.13ms. Allocated memory is still 228.6MB. Free memory was 178.6MB in the beginning and 176.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:13:54,619 INFO L158 Benchmark]: Boogie Preprocessor took 27.93ms. Allocated memory is still 228.6MB. Free memory was 176.5MB in the beginning and 174.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:13:54,619 INFO L158 Benchmark]: RCFGBuilder took 415.20ms. Allocated memory is still 228.6MB. Free memory was 174.9MB in the beginning and 156.5MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-09 15:13:54,619 INFO L158 Benchmark]: TraceAbstraction took 246715.75ms. Allocated memory was 228.6MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 156.0MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-09 15:13:54,620 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory was 143.0MB in the beginning and 142.8MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 164.32ms. Allocated memory is still 228.6MB. Free memory was 190.1MB in the beginning and 178.6MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.13ms. Allocated memory is still 228.6MB. Free memory was 178.6MB in the beginning and 176.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.93ms. Allocated memory is still 228.6MB. Free memory was 176.5MB in the beginning and 174.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 415.20ms. Allocated memory is still 228.6MB. Free memory was 174.9MB in the beginning and 156.5MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 246715.75ms. Allocated memory was 228.6MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 156.0MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (14states, 127/194 universal loopers) in iteration 61,while PetriNetUnfolder was constructing finite prefix that currently has 240402 conditions, 9270 events (2070/9269 cut-off events. For 1888605/1935354 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 114190 event pairs, 415 based on Foata normal form. 82/9184 useless extension candidates. Maximal degree in co-relation 162069. Up to 3743 conditions per place.). - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (14states, 127/194 universal loopers) in iteration 61,while PetriNetUnfolder was constructing finite prefix that currently has 240402 conditions, 9270 events (2070/9269 cut-off events. For 1888605/1935354 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 114190 event pairs, 415 based on Foata normal form. 82/9184 useless extension candidates. Maximal degree in co-relation 162069. Up to 3743 conditions per place.). - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (14states, 127/194 universal loopers) in iteration 61,while PetriNetUnfolder was constructing finite prefix that currently has 240402 conditions, 9270 events (2070/9269 cut-off events. For 1888605/1935354 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 114190 event pairs, 415 based on Foata normal form. 82/9184 useless extension candidates. Maximal degree in co-relation 162069. Up to 3743 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 274 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 246.6s, OverallIterations: 61, TraceHistogramMax: 1, PathProgramHistogramMax: 20, EmptinessCheckTime: 0.0s, AutomataDifference: 235.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6662 SdHoareTripleChecker+Valid, 9.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6662 mSDsluCounter, 35902 SdHoareTripleChecker+Invalid, 7.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30476 mSDsCounter, 328 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20191 IncrementalHoareTripleChecker+Invalid, 20519 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 328 mSolverCounterUnsat, 5426 mSDtfsCounter, 20191 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1685 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1552 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10463 ImplicationChecksByTransitivity, 14.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=370652occurred in iteration=60, InterpolantAutomatonStates: 1295, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 6065 NumberOfCodeBlocks, 6065 NumberOfCodeBlocksAsserted, 61 NumberOfCheckSat, 6004 ConstructedInterpolants, 0 QuantifiedInterpolants, 27242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 61 InterpolantComputations, 61 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown