/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/popl20-more-queue-add-3-nl.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:29:16,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:29:16,914 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 15:29:16,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:29:16,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:29:16,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:29:16,939 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:29:16,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:29:16,940 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:29:16,943 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:29:16,943 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:29:16,944 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:29:16,944 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:29:16,945 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:29:16,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:29:16,945 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:29:16,945 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:29:16,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:29:16,946 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:29:16,946 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:29:16,946 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:29:16,947 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:29:16,947 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:29:16,947 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:29:16,947 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:29:16,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:29:16,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:29:16,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:29:16,948 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:29:16,948 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:29:16,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:29:16,949 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:29:16,949 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:29:16,949 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:29:17,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:29:17,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:29:17,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:29:17,147 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:29:17,148 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:29:17,149 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2023-12-09 15:29:18,214 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:29:18,371 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:29:18,371 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2023-12-09 15:29:18,378 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8a46f525/537a89231e554196a7452fed983e3b40/FLAG20aafb8dc [2023-12-09 15:29:18,389 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8a46f525/537a89231e554196a7452fed983e3b40 [2023-12-09 15:29:18,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:29:18,392 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:29:18,393 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:29:18,393 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:29:18,396 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:29:18,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:29:18" (1/1) ... [2023-12-09 15:29:18,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd0289a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:29:18, skipping insertion in model container [2023-12-09 15:29:18,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:29:18" (1/1) ... [2023-12-09 15:29:18,426 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:29:18,566 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/popl20-more-queue-add-3-nl.wvr.c[3654,3667] [2023-12-09 15:29:18,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:29:18,577 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:29:18,594 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/popl20-more-queue-add-3-nl.wvr.c[3654,3667] [2023-12-09 15:29:18,596 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:29:18,605 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:29:18,605 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:29:18,609 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:29:18,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:29:18 WrapperNode [2023-12-09 15:29:18,610 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:29:18,611 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:29:18,611 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:29:18,611 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:29:18,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:29:18" (1/1) ... [2023-12-09 15:29:18,628 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:29:18" (1/1) ... [2023-12-09 15:29:18,650 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 18, statements flattened = 270 [2023-12-09 15:29:18,650 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:29:18,651 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:29:18,651 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:29:18,651 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:29:18,657 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:29:18" (1/1) ... [2023-12-09 15:29:18,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:29:18" (1/1) ... [2023-12-09 15:29:18,660 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:29:18" (1/1) ... [2023-12-09 15:29:18,660 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:29:18" (1/1) ... [2023-12-09 15:29:18,666 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:29:18" (1/1) ... [2023-12-09 15:29:18,669 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:29:18" (1/1) ... [2023-12-09 15:29:18,670 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:29:18" (1/1) ... [2023-12-09 15:29:18,671 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:29:18" (1/1) ... [2023-12-09 15:29:18,674 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:29:18,674 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:29:18,674 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:29:18,674 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:29:18,675 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:29:18" (1/1) ... [2023-12-09 15:29:18,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:29:18,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:29:18,729 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 15:29:18,736 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 15:29:18,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:29:18,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:29:18,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:29:18,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:29:18,767 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:29:18,767 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:29:18,767 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:29:18,767 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:29:18,768 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-09 15:29:18,768 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-09 15:29:18,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:29:18,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 15:29:18,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 15:29:18,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-09 15:29:18,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:29:18,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:29:18,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:29:18,769 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 15:29:18,849 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:29:18,851 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:29:19,136 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:29:19,235 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:29:19,235 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-12-09 15:29:19,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:29:19 BoogieIcfgContainer [2023-12-09 15:29:19,236 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:29:19,238 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:29:19,238 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:29:19,240 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:29:19,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:29:18" (1/3) ... [2023-12-09 15:29:19,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b72bcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:29:19, skipping insertion in model container [2023-12-09 15:29:19,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:29:18" (2/3) ... [2023-12-09 15:29:19,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b72bcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:29:19, skipping insertion in model container [2023-12-09 15:29:19,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:29:19" (3/3) ... [2023-12-09 15:29:19,242 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-3-nl.wvr.c [2023-12-09 15:29:19,254 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:29:19,254 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:29:19,254 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:29:19,308 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-12-09 15:29:19,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 225 places, 233 transitions, 487 flow [2023-12-09 15:29:19,443 INFO L124 PetriNetUnfolderBase]: 18/230 cut-off events. [2023-12-09 15:29:19,443 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:29:19,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 230 events. 18/230 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 143 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 189. Up to 3 conditions per place. [2023-12-09 15:29:19,453 INFO L82 GeneralOperation]: Start removeDead. Operand has 225 places, 233 transitions, 487 flow [2023-12-09 15:29:19,461 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 211 places, 219 transitions, 456 flow [2023-12-09 15:29:19,472 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:29:19,477 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;@434d250b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:29:19,477 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-09 15:29:19,537 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:29:19,538 INFO L124 PetriNetUnfolderBase]: 18/218 cut-off events. [2023-12-09 15:29:19,538 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:29:19,538 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:19,539 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:19,539 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:19,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:19,543 INFO L85 PathProgramCache]: Analyzing trace with hash -460955011, now seen corresponding path program 1 times [2023-12-09 15:29:19,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:19,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444905502] [2023-12-09 15:29:19,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:19,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:19,833 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 15:29:19,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:19,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444905502] [2023-12-09 15:29:19,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444905502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:19,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:19,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-09 15:29:19,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002968316] [2023-12-09 15:29:19,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:19,842 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-09 15:29:19,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:19,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-09 15:29:19,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-09 15:29:19,874 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 233 [2023-12-09 15:29:19,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 219 transitions, 456 flow. Second operand has 2 states, 2 states have (on average 212.5) internal successors, (425), 2 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:19,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:19,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 233 [2023-12-09 15:29:19,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:19,957 INFO L124 PetriNetUnfolderBase]: 71/414 cut-off events. [2023-12-09 15:29:19,958 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2023-12-09 15:29:19,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 559 conditions, 414 events. 71/414 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1237 event pairs, 38 based on Foata normal form. 60/438 useless extension candidates. Maximal degree in co-relation 361. Up to 106 conditions per place. [2023-12-09 15:29:19,964 INFO L140 encePairwiseOnDemand]: 220/233 looper letters, 11 selfloop transitions, 0 changer transitions 6/206 dead transitions. [2023-12-09 15:29:19,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 206 transitions, 452 flow [2023-12-09 15:29:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-09 15:29:19,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-12-09 15:29:19,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 440 transitions. [2023-12-09 15:29:19,977 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.944206008583691 [2023-12-09 15:29:19,978 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 440 transitions. [2023-12-09 15:29:19,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 440 transitions. [2023-12-09 15:29:19,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:19,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 440 transitions. [2023-12-09 15:29:19,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 220.0) internal successors, (440), 2 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:19,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:19,989 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:19,993 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 1 predicate places. [2023-12-09 15:29:19,993 INFO L500 AbstractCegarLoop]: Abstraction has has 212 places, 206 transitions, 452 flow [2023-12-09 15:29:19,994 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 212.5) internal successors, (425), 2 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:19,994 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:19,994 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:19,995 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:29:19,995 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:19,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:19,996 INFO L85 PathProgramCache]: Analyzing trace with hash 621639807, now seen corresponding path program 1 times [2023-12-09 15:29:19,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:19,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190037929] [2023-12-09 15:29:19,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:19,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:20,340 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 15:29:20,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:20,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190037929] [2023-12-09 15:29:20,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190037929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:20,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:20,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 15:29:20,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632550194] [2023-12-09 15:29:20,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:20,344 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 15:29:20,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:20,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 15:29:20,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 15:29:20,347 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 233 [2023-12-09 15:29:20,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 206 transitions, 452 flow. Second operand has 3 states, 3 states have (on average 208.66666666666666) internal successors, (626), 3 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:20,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:20,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 233 [2023-12-09 15:29:20,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:20,448 INFO L124 PetriNetUnfolderBase]: 82/446 cut-off events. [2023-12-09 15:29:20,448 INFO L125 PetriNetUnfolderBase]: For 99/127 co-relation queries the response was YES. [2023-12-09 15:29:20,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 446 events. 82/446 cut-off events. For 99/127 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1317 event pairs, 17 based on Foata normal form. 7/418 useless extension candidates. Maximal degree in co-relation 518. Up to 122 conditions per place. [2023-12-09 15:29:20,451 INFO L140 encePairwiseOnDemand]: 230/233 looper letters, 19 selfloop transitions, 2 changer transitions 6/212 dead transitions. [2023-12-09 15:29:20,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 212 transitions, 524 flow [2023-12-09 15:29:20,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 15:29:20,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 15:29:20,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 634 transitions. [2023-12-09 15:29:20,453 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.9070100143061517 [2023-12-09 15:29:20,453 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 634 transitions. [2023-12-09 15:29:20,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 634 transitions. [2023-12-09 15:29:20,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:20,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 634 transitions. [2023-12-09 15:29:20,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:20,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 233.0) internal successors, (932), 4 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:20,458 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 233.0) internal successors, (932), 4 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:20,459 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 3 predicate places. [2023-12-09 15:29:20,459 INFO L500 AbstractCegarLoop]: Abstraction has has 214 places, 212 transitions, 524 flow [2023-12-09 15:29:20,459 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.66666666666666) internal successors, (626), 3 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:20,459 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:20,460 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:20,460 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:29:20,460 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:20,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:20,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1715150903, now seen corresponding path program 2 times [2023-12-09 15:29:20,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:20,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421353850] [2023-12-09 15:29:20,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:20,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:20,685 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 15:29:20,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:20,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421353850] [2023-12-09 15:29:20,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421353850] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:20,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:20,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:29:20,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399426673] [2023-12-09 15:29:20,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:20,687 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:29:20,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:20,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:29:20,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:29:20,695 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 233 [2023-12-09 15:29:20,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 212 transitions, 524 flow. Second operand has 6 states, 6 states have (on average 181.66666666666666) internal successors, (1090), 6 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:20,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:20,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 233 [2023-12-09 15:29:20,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:20,878 INFO L124 PetriNetUnfolderBase]: 83/538 cut-off events. [2023-12-09 15:29:20,878 INFO L125 PetriNetUnfolderBase]: For 225/281 co-relation queries the response was YES. [2023-12-09 15:29:20,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1023 conditions, 538 events. 83/538 cut-off events. For 225/281 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1603 event pairs, 17 based on Foata normal form. 8/504 useless extension candidates. Maximal degree in co-relation 628. Up to 139 conditions per place. [2023-12-09 15:29:20,882 INFO L140 encePairwiseOnDemand]: 220/233 looper letters, 45 selfloop transitions, 8 changer transitions 28/238 dead transitions. [2023-12-09 15:29:20,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 238 transitions, 747 flow [2023-12-09 15:29:20,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:29:20,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:29:20,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1656 transitions. [2023-12-09 15:29:20,885 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7896995708154506 [2023-12-09 15:29:20,885 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1656 transitions. [2023-12-09 15:29:20,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1656 transitions. [2023-12-09 15:29:20,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:20,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1656 transitions. [2023-12-09 15:29:20,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 184.0) internal successors, (1656), 9 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:20,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 233.0) internal successors, (2330), 10 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:20,891 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 233.0) internal successors, (2330), 10 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:20,892 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 11 predicate places. [2023-12-09 15:29:20,892 INFO L500 AbstractCegarLoop]: Abstraction has has 222 places, 238 transitions, 747 flow [2023-12-09 15:29:20,893 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.66666666666666) internal successors, (1090), 6 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:20,893 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:20,893 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:20,893 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:29:20,893 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:20,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:20,894 INFO L85 PathProgramCache]: Analyzing trace with hash 772937206, now seen corresponding path program 1 times [2023-12-09 15:29:20,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:20,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530444517] [2023-12-09 15:29:20,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:20,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:21,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:29:21,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:21,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530444517] [2023-12-09 15:29:21,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530444517] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:21,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:21,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:29:21,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942751389] [2023-12-09 15:29:21,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:21,059 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:29:21,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:21,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:29:21,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:29:21,061 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 233 [2023-12-09 15:29:21,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 238 transitions, 747 flow. Second operand has 6 states, 6 states have (on average 182.33333333333334) internal successors, (1094), 6 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:21,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:21,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 233 [2023-12-09 15:29:21,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:21,244 INFO L124 PetriNetUnfolderBase]: 104/719 cut-off events. [2023-12-09 15:29:21,244 INFO L125 PetriNetUnfolderBase]: For 603/757 co-relation queries the response was YES. [2023-12-09 15:29:21,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1604 conditions, 719 events. 104/719 cut-off events. For 603/757 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2750 event pairs, 29 based on Foata normal form. 7/668 useless extension candidates. Maximal degree in co-relation 846. Up to 184 conditions per place. [2023-12-09 15:29:21,248 INFO L140 encePairwiseOnDemand]: 222/233 looper letters, 49 selfloop transitions, 8 changer transitions 50/264 dead transitions. [2023-12-09 15:29:21,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 264 transitions, 1114 flow [2023-12-09 15:29:21,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:29:21,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:29:21,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1643 transitions. [2023-12-09 15:29:21,252 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7835002384358608 [2023-12-09 15:29:21,252 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1643 transitions. [2023-12-09 15:29:21,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1643 transitions. [2023-12-09 15:29:21,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:21,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1643 transitions. [2023-12-09 15:29:21,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 182.55555555555554) internal successors, (1643), 9 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:21,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 233.0) internal successors, (2330), 10 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:21,260 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 233.0) internal successors, (2330), 10 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:21,261 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 19 predicate places. [2023-12-09 15:29:21,261 INFO L500 AbstractCegarLoop]: Abstraction has has 230 places, 264 transitions, 1114 flow [2023-12-09 15:29:21,261 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.33333333333334) internal successors, (1094), 6 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:21,262 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:21,262 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:21,262 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:29:21,262 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:21,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:21,262 INFO L85 PathProgramCache]: Analyzing trace with hash 751563643, now seen corresponding path program 1 times [2023-12-09 15:29:21,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:21,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452339540] [2023-12-09 15:29:21,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:21,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:22,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:29:22,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:22,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452339540] [2023-12-09 15:29:22,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452339540] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:22,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:22,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:29:22,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490013052] [2023-12-09 15:29:22,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:22,647 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:29:22,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:22,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:29:22,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:29:22,649 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:29:22,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 264 transitions, 1114 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:22,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:22,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:29:22,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:23,824 INFO L124 PetriNetUnfolderBase]: 1673/4087 cut-off events. [2023-12-09 15:29:23,825 INFO L125 PetriNetUnfolderBase]: For 9212/9656 co-relation queries the response was YES. [2023-12-09 15:29:23,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11957 conditions, 4087 events. 1673/4087 cut-off events. For 9212/9656 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 30043 event pairs, 246 based on Foata normal form. 0/3747 useless extension candidates. Maximal degree in co-relation 7990. Up to 1281 conditions per place. [2023-12-09 15:29:23,847 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 181 selfloop transitions, 51 changer transitions 89/459 dead transitions. [2023-12-09 15:29:23,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 459 transitions, 3143 flow [2023-12-09 15:29:23,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-09 15:29:23,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-12-09 15:29:23,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 3948 transitions. [2023-12-09 15:29:23,853 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6517002310993727 [2023-12-09 15:29:23,853 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 3948 transitions. [2023-12-09 15:29:23,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 3948 transitions. [2023-12-09 15:29:23,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:23,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 3948 transitions. [2023-12-09 15:29:23,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 151.84615384615384) internal successors, (3948), 26 states have internal predecessors, (3948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:23,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 233.0) internal successors, (6291), 27 states have internal predecessors, (6291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:23,866 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 233.0) internal successors, (6291), 27 states have internal predecessors, (6291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:23,867 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 44 predicate places. [2023-12-09 15:29:23,867 INFO L500 AbstractCegarLoop]: Abstraction has has 255 places, 459 transitions, 3143 flow [2023-12-09 15:29:23,868 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:23,868 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:23,868 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:23,868 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:29:23,868 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:23,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:23,869 INFO L85 PathProgramCache]: Analyzing trace with hash -715775779, now seen corresponding path program 2 times [2023-12-09 15:29:23,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:23,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603887412] [2023-12-09 15:29:23,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:23,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:23,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:29:23,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:23,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603887412] [2023-12-09 15:29:23,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603887412] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:23,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:23,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 15:29:23,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264861991] [2023-12-09 15:29:23,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:23,951 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 15:29:23,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:23,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 15:29:23,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 15:29:23,952 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 233 [2023-12-09 15:29:23,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 459 transitions, 3143 flow. Second operand has 3 states, 3 states have (on average 208.66666666666666) internal successors, (626), 3 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:23,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:23,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 233 [2023-12-09 15:29:23,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:24,296 INFO L124 PetriNetUnfolderBase]: 1172/3185 cut-off events. [2023-12-09 15:29:24,296 INFO L125 PetriNetUnfolderBase]: For 10357/10843 co-relation queries the response was YES. [2023-12-09 15:29:24,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9928 conditions, 3185 events. 1172/3185 cut-off events. For 10357/10843 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 22655 event pairs, 261 based on Foata normal form. 58/3006 useless extension candidates. Maximal degree in co-relation 5943. Up to 1281 conditions per place. [2023-12-09 15:29:24,315 INFO L140 encePairwiseOnDemand]: 229/233 looper letters, 79 selfloop transitions, 4 changer transitions 90/426 dead transitions. [2023-12-09 15:29:24,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 426 transitions, 3181 flow [2023-12-09 15:29:24,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 15:29:24,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 15:29:24,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 632 transitions. [2023-12-09 15:29:24,317 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.9041487839771102 [2023-12-09 15:29:24,317 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 632 transitions. [2023-12-09 15:29:24,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 632 transitions. [2023-12-09 15:29:24,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:24,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 632 transitions. [2023-12-09 15:29:24,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:24,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 233.0) internal successors, (932), 4 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:24,320 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 233.0) internal successors, (932), 4 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:24,320 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 45 predicate places. [2023-12-09 15:29:24,320 INFO L500 AbstractCegarLoop]: Abstraction has has 256 places, 426 transitions, 3181 flow [2023-12-09 15:29:24,320 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.66666666666666) internal successors, (626), 3 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:24,321 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:24,321 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:24,321 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:29:24,321 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:24,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:24,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1026990885, now seen corresponding path program 3 times [2023-12-09 15:29:24,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:24,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002622356] [2023-12-09 15:29:24,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:24,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:25,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:29:25,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:25,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002622356] [2023-12-09 15:29:25,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002622356] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:25,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:25,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:29:25,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052253925] [2023-12-09 15:29:25,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:25,415 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:29:25,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:25,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:29:25,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:29:25,418 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:29:25,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 426 transitions, 3181 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:25,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:25,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:29:25,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:26,312 INFO L124 PetriNetUnfolderBase]: 1241/3293 cut-off events. [2023-12-09 15:29:26,312 INFO L125 PetriNetUnfolderBase]: For 13657/14742 co-relation queries the response was YES. [2023-12-09 15:29:26,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12768 conditions, 3293 events. 1241/3293 cut-off events. For 13657/14742 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 23743 event pairs, 263 based on Foata normal form. 66/3107 useless extension candidates. Maximal degree in co-relation 7463. Up to 1585 conditions per place. [2023-12-09 15:29:26,334 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 209 selfloop transitions, 55 changer transitions 107/509 dead transitions. [2023-12-09 15:29:26,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 509 transitions, 4647 flow [2023-12-09 15:29:26,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:29:26,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:29:26,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3473 transitions. [2023-12-09 15:29:26,340 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.648068669527897 [2023-12-09 15:29:26,340 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3473 transitions. [2023-12-09 15:29:26,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3473 transitions. [2023-12-09 15:29:26,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:26,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3473 transitions. [2023-12-09 15:29:26,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 151.0) internal successors, (3473), 23 states have internal predecessors, (3473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:26,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:26,353 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:26,354 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 67 predicate places. [2023-12-09 15:29:26,354 INFO L500 AbstractCegarLoop]: Abstraction has has 278 places, 509 transitions, 4647 flow [2023-12-09 15:29:26,355 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:26,355 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:26,355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:26,355 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:29:26,355 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:26,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:26,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1039724501, now seen corresponding path program 4 times [2023-12-09 15:29:26,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:26,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151162262] [2023-12-09 15:29:26,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:26,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:27,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:29:27,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:27,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151162262] [2023-12-09 15:29:27,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151162262] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:27,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:27,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:29:27,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135024554] [2023-12-09 15:29:27,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:27,378 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:29:27,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:27,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:29:27,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:29:27,380 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:29:27,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 509 transitions, 4647 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:27,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:27,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:29:27,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:28,321 INFO L124 PetriNetUnfolderBase]: 1294/3535 cut-off events. [2023-12-09 15:29:28,322 INFO L125 PetriNetUnfolderBase]: For 16998/19285 co-relation queries the response was YES. [2023-12-09 15:29:28,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15865 conditions, 3535 events. 1294/3535 cut-off events. For 16998/19285 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 26144 event pairs, 343 based on Foata normal form. 165/3437 useless extension candidates. Maximal degree in co-relation 11304. Up to 1697 conditions per place. [2023-12-09 15:29:28,344 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 238 selfloop transitions, 60 changer transitions 116/552 dead transitions. [2023-12-09 15:29:28,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 552 transitions, 5918 flow [2023-12-09 15:29:28,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-09 15:29:28,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-12-09 15:29:28,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 3913 transitions. [2023-12-09 15:29:28,351 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6459227467811158 [2023-12-09 15:29:28,351 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 3913 transitions. [2023-12-09 15:29:28,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 3913 transitions. [2023-12-09 15:29:28,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:28,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 3913 transitions. [2023-12-09 15:29:28,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 150.5) internal successors, (3913), 26 states have internal predecessors, (3913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:28,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 233.0) internal successors, (6291), 27 states have internal predecessors, (6291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:28,364 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 233.0) internal successors, (6291), 27 states have internal predecessors, (6291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:28,364 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 92 predicate places. [2023-12-09 15:29:28,364 INFO L500 AbstractCegarLoop]: Abstraction has has 303 places, 552 transitions, 5918 flow [2023-12-09 15:29:28,365 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:28,365 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:28,365 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:28,365 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 15:29:28,365 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:28,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:28,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1594644493, now seen corresponding path program 5 times [2023-12-09 15:29:28,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:28,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234513053] [2023-12-09 15:29:28,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:28,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:29,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:29:29,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:29,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234513053] [2023-12-09 15:29:29,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234513053] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:29,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:29,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:29:29,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453956768] [2023-12-09 15:29:29,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:29,269 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:29:29,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:29,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:29:29,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:29:29,271 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:29:29,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 552 transitions, 5918 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:29,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:29,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:29:29,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:30,371 INFO L124 PetriNetUnfolderBase]: 1354/3774 cut-off events. [2023-12-09 15:29:30,371 INFO L125 PetriNetUnfolderBase]: For 20974/22634 co-relation queries the response was YES. [2023-12-09 15:29:30,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19166 conditions, 3774 events. 1354/3774 cut-off events. For 20974/22634 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 28733 event pairs, 313 based on Foata normal form. 151/3644 useless extension candidates. Maximal degree in co-relation 10851. Up to 1803 conditions per place. [2023-12-09 15:29:30,405 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 261 selfloop transitions, 62 changer transitions 122/583 dead transitions. [2023-12-09 15:29:30,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 583 transitions, 7215 flow [2023-12-09 15:29:30,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-09 15:29:30,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-12-09 15:29:30,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3767 transitions. [2023-12-09 15:29:30,411 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.646695278969957 [2023-12-09 15:29:30,411 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3767 transitions. [2023-12-09 15:29:30,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3767 transitions. [2023-12-09 15:29:30,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:30,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3767 transitions. [2023-12-09 15:29:30,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 150.68) internal successors, (3767), 25 states have internal predecessors, (3767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:30,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 233.0) internal successors, (6058), 26 states have internal predecessors, (6058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:30,426 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 233.0) internal successors, (6058), 26 states have internal predecessors, (6058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:30,427 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 116 predicate places. [2023-12-09 15:29:30,427 INFO L500 AbstractCegarLoop]: Abstraction has has 327 places, 583 transitions, 7215 flow [2023-12-09 15:29:30,428 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:30,428 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:30,430 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:30,430 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 15:29:30,431 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:30,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:30,431 INFO L85 PathProgramCache]: Analyzing trace with hash -955554545, now seen corresponding path program 6 times [2023-12-09 15:29:30,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:30,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589907859] [2023-12-09 15:29:30,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:30,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:31,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:29:31,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:31,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589907859] [2023-12-09 15:29:31,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589907859] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:31,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:31,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:29:31,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748653167] [2023-12-09 15:29:31,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:31,419 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:29:31,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:31,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:29:31,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:29:31,424 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:29:31,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 583 transitions, 7215 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:31,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:31,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:29:31,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:32,547 INFO L124 PetriNetUnfolderBase]: 1404/3798 cut-off events. [2023-12-09 15:29:32,548 INFO L125 PetriNetUnfolderBase]: For 24567/26265 co-relation queries the response was YES. [2023-12-09 15:29:32,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22302 conditions, 3798 events. 1404/3798 cut-off events. For 24567/26265 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 28773 event pairs, 313 based on Foata normal form. 190/3712 useless extension candidates. Maximal degree in co-relation 13023. Up to 1892 conditions per place. [2023-12-09 15:29:32,580 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 284 selfloop transitions, 63 changer transitions 128/613 dead transitions. [2023-12-09 15:29:32,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 613 transitions, 8614 flow [2023-12-09 15:29:32,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-09 15:29:32,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-12-09 15:29:32,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3765 transitions. [2023-12-09 15:29:32,584 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6463519313304721 [2023-12-09 15:29:32,584 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3765 transitions. [2023-12-09 15:29:32,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3765 transitions. [2023-12-09 15:29:32,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:32,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3765 transitions. [2023-12-09 15:29:32,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 150.6) internal successors, (3765), 25 states have internal predecessors, (3765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:32,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 233.0) internal successors, (6058), 26 states have internal predecessors, (6058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:32,594 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 233.0) internal successors, (6058), 26 states have internal predecessors, (6058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:32,595 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 140 predicate places. [2023-12-09 15:29:32,595 INFO L500 AbstractCegarLoop]: Abstraction has has 351 places, 613 transitions, 8614 flow [2023-12-09 15:29:32,595 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:32,595 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:32,596 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:32,596 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-09 15:29:32,596 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:32,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:32,596 INFO L85 PathProgramCache]: Analyzing trace with hash 703615201, now seen corresponding path program 7 times [2023-12-09 15:29:32,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:32,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35046361] [2023-12-09 15:29:32,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:32,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:33,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:29:33,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:33,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35046361] [2023-12-09 15:29:33,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35046361] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:33,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:33,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:29:33,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150334500] [2023-12-09 15:29:33,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:33,402 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:29:33,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:33,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:29:33,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:29:33,404 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:29:33,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 613 transitions, 8614 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:33,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:33,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:29:33,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:34,515 INFO L124 PetriNetUnfolderBase]: 1419/3800 cut-off events. [2023-12-09 15:29:34,515 INFO L125 PetriNetUnfolderBase]: For 28471/30318 co-relation queries the response was YES. [2023-12-09 15:29:34,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25089 conditions, 3800 events. 1419/3800 cut-off events. For 28471/30318 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 28810 event pairs, 332 based on Foata normal form. 180/3702 useless extension candidates. Maximal degree in co-relation 14848. Up to 1926 conditions per place. [2023-12-09 15:29:34,540 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 300 selfloop transitions, 61 changer transitions 134/633 dead transitions. [2023-12-09 15:29:34,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 633 transitions, 9894 flow [2023-12-09 15:29:34,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-09 15:29:34,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-12-09 15:29:34,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3610 transitions. [2023-12-09 15:29:34,543 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6455650929899857 [2023-12-09 15:29:34,543 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3610 transitions. [2023-12-09 15:29:34,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3610 transitions. [2023-12-09 15:29:34,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:34,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3610 transitions. [2023-12-09 15:29:34,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 150.41666666666666) internal successors, (3610), 24 states have internal predecessors, (3610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:34,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:34,555 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:34,555 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 163 predicate places. [2023-12-09 15:29:34,555 INFO L500 AbstractCegarLoop]: Abstraction has has 374 places, 633 transitions, 9894 flow [2023-12-09 15:29:34,556 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:34,556 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:34,556 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:34,556 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-09 15:29:34,556 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:34,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:34,557 INFO L85 PathProgramCache]: Analyzing trace with hash 522880885, now seen corresponding path program 8 times [2023-12-09 15:29:34,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:34,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883175317] [2023-12-09 15:29:34,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:34,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:35,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:29:35,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:35,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883175317] [2023-12-09 15:29:35,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883175317] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:35,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:35,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:29:35,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49459929] [2023-12-09 15:29:35,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:35,218 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:29:35,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:35,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:29:35,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:29:35,220 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:29:35,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 633 transitions, 9894 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:35,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:35,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:29:35,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:36,307 INFO L124 PetriNetUnfolderBase]: 1429/3971 cut-off events. [2023-12-09 15:29:36,307 INFO L125 PetriNetUnfolderBase]: For 36564/38825 co-relation queries the response was YES. [2023-12-09 15:29:36,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28036 conditions, 3971 events. 1429/3971 cut-off events. For 36564/38825 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 30990 event pairs, 285 based on Foata normal form. 177/3855 useless extension candidates. Maximal degree in co-relation 16625. Up to 2022 conditions per place. [2023-12-09 15:29:36,342 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 321 selfloop transitions, 53 changer transitions 140/652 dead transitions. [2023-12-09 15:29:36,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 652 transitions, 11212 flow [2023-12-09 15:29:36,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:29:36,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:29:36,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3452 transitions. [2023-12-09 15:29:36,345 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6441500279902967 [2023-12-09 15:29:36,345 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3452 transitions. [2023-12-09 15:29:36,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3452 transitions. [2023-12-09 15:29:36,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:36,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3452 transitions. [2023-12-09 15:29:36,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 150.08695652173913) internal successors, (3452), 23 states have internal predecessors, (3452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:36,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:36,354 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:36,354 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 185 predicate places. [2023-12-09 15:29:36,355 INFO L500 AbstractCegarLoop]: Abstraction has has 396 places, 652 transitions, 11212 flow [2023-12-09 15:29:36,355 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:36,355 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:36,355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:36,356 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-09 15:29:36,356 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:36,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:36,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1293750037, now seen corresponding path program 9 times [2023-12-09 15:29:36,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:36,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627310667] [2023-12-09 15:29:36,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:36,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:37,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:29:37,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:37,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627310667] [2023-12-09 15:29:37,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627310667] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:37,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:37,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:29:37,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539833442] [2023-12-09 15:29:37,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:37,228 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:29:37,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:37,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:29:37,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:29:37,230 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:29:37,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 652 transitions, 11212 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:37,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:37,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:29:37,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:38,437 INFO L124 PetriNetUnfolderBase]: 1471/4048 cut-off events. [2023-12-09 15:29:38,437 INFO L125 PetriNetUnfolderBase]: For 42227/45045 co-relation queries the response was YES. [2023-12-09 15:29:38,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31629 conditions, 4048 events. 1471/4048 cut-off events. For 42227/45045 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 31568 event pairs, 320 based on Foata normal form. 169/3918 useless extension candidates. Maximal degree in co-relation 19085. Up to 2109 conditions per place. [2023-12-09 15:29:38,484 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 340 selfloop transitions, 58 changer transitions 147/683 dead transitions. [2023-12-09 15:29:38,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 683 transitions, 12891 flow [2023-12-09 15:29:38,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-09 15:29:38,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-12-09 15:29:38,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3612 transitions. [2023-12-09 15:29:38,490 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6459227467811158 [2023-12-09 15:29:38,490 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3612 transitions. [2023-12-09 15:29:38,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3612 transitions. [2023-12-09 15:29:38,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:38,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3612 transitions. [2023-12-09 15:29:38,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 150.5) internal successors, (3612), 24 states have internal predecessors, (3612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:38,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:38,499 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:38,500 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 208 predicate places. [2023-12-09 15:29:38,500 INFO L500 AbstractCegarLoop]: Abstraction has has 419 places, 683 transitions, 12891 flow [2023-12-09 15:29:38,500 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:38,500 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:38,500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:38,500 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-09 15:29:38,501 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:38,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:38,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1742640543, now seen corresponding path program 10 times [2023-12-09 15:29:38,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:38,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702417485] [2023-12-09 15:29:38,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:38,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:39,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:29:39,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:39,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702417485] [2023-12-09 15:29:39,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702417485] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:39,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:39,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:29:39,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130749267] [2023-12-09 15:29:39,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:39,264 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:29:39,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:39,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:29:39,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:29:39,271 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:29:39,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 683 transitions, 12891 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:39,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:39,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:29:39,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:40,360 INFO L124 PetriNetUnfolderBase]: 1543/4198 cut-off events. [2023-12-09 15:29:40,361 INFO L125 PetriNetUnfolderBase]: For 51634/55008 co-relation queries the response was YES. [2023-12-09 15:29:40,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35921 conditions, 4198 events. 1543/4198 cut-off events. For 51634/55008 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 32972 event pairs, 424 based on Foata normal form. 180/4060 useless extension candidates. Maximal degree in co-relation 22541. Up to 2221 conditions per place. [2023-12-09 15:29:40,432 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 369 selfloop transitions, 60 changer transitions 153/720 dead transitions. [2023-12-09 15:29:40,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 720 transitions, 14910 flow [2023-12-09 15:29:40,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-09 15:29:40,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-12-09 15:29:40,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3613 transitions. [2023-12-09 15:29:40,438 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.646101573676681 [2023-12-09 15:29:40,438 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3613 transitions. [2023-12-09 15:29:40,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3613 transitions. [2023-12-09 15:29:40,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:40,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3613 transitions. [2023-12-09 15:29:40,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 150.54166666666666) internal successors, (3613), 24 states have internal predecessors, (3613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:40,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:40,449 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:40,449 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 231 predicate places. [2023-12-09 15:29:40,450 INFO L500 AbstractCegarLoop]: Abstraction has has 442 places, 720 transitions, 14910 flow [2023-12-09 15:29:40,450 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:40,450 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:40,450 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:40,451 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-09 15:29:40,451 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:40,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:40,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1340680885, now seen corresponding path program 11 times [2023-12-09 15:29:40,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:40,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197540212] [2023-12-09 15:29:40,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:40,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:41,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:29:41,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:41,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197540212] [2023-12-09 15:29:41,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197540212] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:41,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:41,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:29:41,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692549303] [2023-12-09 15:29:41,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:41,242 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:29:41,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:41,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:29:41,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:29:41,244 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:29:41,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 720 transitions, 14910 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:41,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:41,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:29:41,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:42,373 INFO L124 PetriNetUnfolderBase]: 1599/4472 cut-off events. [2023-12-09 15:29:42,374 INFO L125 PetriNetUnfolderBase]: For 64826/68608 co-relation queries the response was YES. [2023-12-09 15:29:42,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40223 conditions, 4472 events. 1599/4472 cut-off events. For 64826/68608 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 36183 event pairs, 324 based on Foata normal form. 155/4292 useless extension candidates. Maximal degree in co-relation 25424. Up to 2313 conditions per place. [2023-12-09 15:29:42,418 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 394 selfloop transitions, 64 changer transitions 159/755 dead transitions. [2023-12-09 15:29:42,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 755 transitions, 17013 flow [2023-12-09 15:29:42,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-09 15:29:42,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-12-09 15:29:42,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3613 transitions. [2023-12-09 15:29:42,422 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.646101573676681 [2023-12-09 15:29:42,422 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3613 transitions. [2023-12-09 15:29:42,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3613 transitions. [2023-12-09 15:29:42,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:42,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3613 transitions. [2023-12-09 15:29:42,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 150.54166666666666) internal successors, (3613), 24 states have internal predecessors, (3613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:42,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:42,429 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:42,429 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 254 predicate places. [2023-12-09 15:29:42,430 INFO L500 AbstractCegarLoop]: Abstraction has has 465 places, 755 transitions, 17013 flow [2023-12-09 15:29:42,430 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:42,430 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:42,430 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:42,430 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-09 15:29:42,430 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:42,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:42,431 INFO L85 PathProgramCache]: Analyzing trace with hash -38314279, now seen corresponding path program 12 times [2023-12-09 15:29:42,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:42,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471182854] [2023-12-09 15:29:42,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:42,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:43,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:29:43,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:43,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471182854] [2023-12-09 15:29:43,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471182854] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:43,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:43,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:29:43,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889269723] [2023-12-09 15:29:43,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:43,230 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:29:43,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:43,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:29:43,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:29:43,232 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:29:43,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 755 transitions, 17013 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:43,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:43,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:29:43,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:44,495 INFO L124 PetriNetUnfolderBase]: 1650/4636 cut-off events. [2023-12-09 15:29:44,495 INFO L125 PetriNetUnfolderBase]: For 77884/82724 co-relation queries the response was YES. [2023-12-09 15:29:44,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44632 conditions, 4636 events. 1650/4636 cut-off events. For 77884/82724 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 37906 event pairs, 324 based on Foata normal form. 189/4477 useless extension candidates. Maximal degree in co-relation 28720. Up to 2394 conditions per place. [2023-12-09 15:29:44,541 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 422 selfloop transitions, 62 changer transitions 166/788 dead transitions. [2023-12-09 15:29:44,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 788 transitions, 19139 flow [2023-12-09 15:29:44,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-09 15:29:44,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-12-09 15:29:44,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3763 transitions. [2023-12-09 15:29:44,544 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6460085836909871 [2023-12-09 15:29:44,544 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3763 transitions. [2023-12-09 15:29:44,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3763 transitions. [2023-12-09 15:29:44,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:44,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3763 transitions. [2023-12-09 15:29:44,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 150.52) internal successors, (3763), 25 states have internal predecessors, (3763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:44,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 233.0) internal successors, (6058), 26 states have internal predecessors, (6058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:44,552 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 233.0) internal successors, (6058), 26 states have internal predecessors, (6058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:44,552 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 278 predicate places. [2023-12-09 15:29:44,552 INFO L500 AbstractCegarLoop]: Abstraction has has 489 places, 788 transitions, 19139 flow [2023-12-09 15:29:44,553 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:44,553 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:44,553 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:44,553 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-09 15:29:44,553 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:44,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:44,554 INFO L85 PathProgramCache]: Analyzing trace with hash 598280247, now seen corresponding path program 13 times [2023-12-09 15:29:44,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:44,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754577489] [2023-12-09 15:29:44,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:44,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:45,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:29:45,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:45,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754577489] [2023-12-09 15:29:45,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754577489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:45,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:45,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:29:45,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986049801] [2023-12-09 15:29:45,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:45,298 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:29:45,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:45,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:29:45,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:29:45,300 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:29:45,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 788 transitions, 19139 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:45,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:45,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:29:45,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:46,981 INFO L124 PetriNetUnfolderBase]: 1701/4721 cut-off events. [2023-12-09 15:29:46,982 INFO L125 PetriNetUnfolderBase]: For 89737/94831 co-relation queries the response was YES. [2023-12-09 15:29:46,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49164 conditions, 4721 events. 1701/4721 cut-off events. For 89737/94831 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 38796 event pairs, 347 based on Foata normal form. 191/4558 useless extension candidates. Maximal degree in co-relation 32013. Up to 2475 conditions per place. [2023-12-09 15:29:47,030 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 450 selfloop transitions, 60 changer transitions 173/821 dead transitions. [2023-12-09 15:29:47,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 821 transitions, 21397 flow [2023-12-09 15:29:47,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-09 15:29:47,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-12-09 15:29:47,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3614 transitions. [2023-12-09 15:29:47,034 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6462804005722461 [2023-12-09 15:29:47,034 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3614 transitions. [2023-12-09 15:29:47,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3614 transitions. [2023-12-09 15:29:47,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:47,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3614 transitions. [2023-12-09 15:29:47,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 150.58333333333334) internal successors, (3614), 24 states have internal predecessors, (3614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:47,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:47,040 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:47,040 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 301 predicate places. [2023-12-09 15:29:47,041 INFO L500 AbstractCegarLoop]: Abstraction has has 512 places, 821 transitions, 21397 flow [2023-12-09 15:29:47,041 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:47,041 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:47,041 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:47,041 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-09 15:29:47,041 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:47,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:47,042 INFO L85 PathProgramCache]: Analyzing trace with hash -612223251, now seen corresponding path program 14 times [2023-12-09 15:29:47,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:47,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113105390] [2023-12-09 15:29:47,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:47,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:47,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:29:47,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:47,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113105390] [2023-12-09 15:29:47,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113105390] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:47,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:47,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:29:47,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189458117] [2023-12-09 15:29:47,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:47,650 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:29:47,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:47,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:29:47,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:29:47,652 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:29:47,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 821 transitions, 21397 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:47,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:47,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:29:47,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:49,077 INFO L124 PetriNetUnfolderBase]: 1728/4745 cut-off events. [2023-12-09 15:29:49,077 INFO L125 PetriNetUnfolderBase]: For 96348/100803 co-relation queries the response was YES. [2023-12-09 15:29:49,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53024 conditions, 4745 events. 1728/4745 cut-off events. For 96348/100803 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 38663 event pairs, 396 based on Foata normal form. 171/4571 useless extension candidates. Maximal degree in co-relation 34783. Up to 2502 conditions per place. [2023-12-09 15:29:49,279 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 465 selfloop transitions, 65 changer transitions 179/847 dead transitions. [2023-12-09 15:29:49,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 847 transitions, 23562 flow [2023-12-09 15:29:49,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:29:49,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:29:49,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3462 transitions. [2023-12-09 15:29:49,282 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6460160477701063 [2023-12-09 15:29:49,282 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3462 transitions. [2023-12-09 15:29:49,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3462 transitions. [2023-12-09 15:29:49,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:49,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3462 transitions. [2023-12-09 15:29:49,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 150.52173913043478) internal successors, (3462), 23 states have internal predecessors, (3462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:49,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:49,289 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:49,289 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 323 predicate places. [2023-12-09 15:29:49,289 INFO L500 AbstractCegarLoop]: Abstraction has has 534 places, 847 transitions, 23562 flow [2023-12-09 15:29:49,290 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:49,290 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:49,290 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:49,290 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-09 15:29:49,290 INFO L425 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:49,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:49,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1143179539, now seen corresponding path program 15 times [2023-12-09 15:29:49,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:49,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26026305] [2023-12-09 15:29:49,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:49,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:49,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:29:49,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:49,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26026305] [2023-12-09 15:29:49,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26026305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:49,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:49,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:29:49,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57421053] [2023-12-09 15:29:49,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:49,974 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:29:49,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:49,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:29:49,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:29:49,979 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:29:49,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 534 places, 847 transitions, 23562 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:49,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:49,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:29:49,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:51,360 INFO L124 PetriNetUnfolderBase]: 1734/4822 cut-off events. [2023-12-09 15:29:51,360 INFO L125 PetriNetUnfolderBase]: For 112160/117798 co-relation queries the response was YES. [2023-12-09 15:29:51,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56574 conditions, 4822 events. 1734/4822 cut-off events. For 112160/117798 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 40185 event pairs, 296 based on Foata normal form. 190/4661 useless extension candidates. Maximal degree in co-relation 37121. Up to 2519 conditions per place. [2023-12-09 15:29:51,423 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 475 selfloop transitions, 63 changer transitions 185/861 dead transitions. [2023-12-09 15:29:51,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 556 places, 861 transitions, 25421 flow [2023-12-09 15:29:51,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:29:51,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:29:51,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3459 transitions. [2023-12-09 15:29:51,426 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6454562418361635 [2023-12-09 15:29:51,426 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3459 transitions. [2023-12-09 15:29:51,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3459 transitions. [2023-12-09 15:29:51,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:51,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3459 transitions. [2023-12-09 15:29:51,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 150.3913043478261) internal successors, (3459), 23 states have internal predecessors, (3459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:51,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:51,432 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:51,433 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 345 predicate places. [2023-12-09 15:29:51,433 INFO L500 AbstractCegarLoop]: Abstraction has has 556 places, 861 transitions, 25421 flow [2023-12-09 15:29:51,433 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:51,433 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:51,433 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:51,434 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-09 15:29:51,434 INFO L425 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:51,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:51,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1572025735, now seen corresponding path program 16 times [2023-12-09 15:29:51,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:51,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569636620] [2023-12-09 15:29:51,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:51,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:52,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:29:52,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:52,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569636620] [2023-12-09 15:29:52,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569636620] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:52,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:52,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:29:52,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343821106] [2023-12-09 15:29:52,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:52,369 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:29:52,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:52,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:29:52,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:29:52,371 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:29:52,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 861 transitions, 25421 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:52,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:52,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:29:52,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:53,751 INFO L124 PetriNetUnfolderBase]: 1742/4856 cut-off events. [2023-12-09 15:29:53,751 INFO L125 PetriNetUnfolderBase]: For 122818/127923 co-relation queries the response was YES. [2023-12-09 15:29:53,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60079 conditions, 4856 events. 1742/4856 cut-off events. For 122818/127923 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 39962 event pairs, 419 based on Foata normal form. 154/4663 useless extension candidates. Maximal degree in co-relation 39468. Up to 2536 conditions per place. [2023-12-09 15:29:53,809 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 477 selfloop transitions, 67 changer transitions 192/874 dead transitions. [2023-12-09 15:29:53,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 578 places, 874 transitions, 27363 flow [2023-12-09 15:29:53,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:29:53,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:29:53,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3457 transitions. [2023-12-09 15:29:53,815 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6450830378802015 [2023-12-09 15:29:53,815 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3457 transitions. [2023-12-09 15:29:53,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3457 transitions. [2023-12-09 15:29:53,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:53,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3457 transitions. [2023-12-09 15:29:53,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 150.30434782608697) internal successors, (3457), 23 states have internal predecessors, (3457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:53,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:53,824 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:53,824 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 367 predicate places. [2023-12-09 15:29:53,824 INFO L500 AbstractCegarLoop]: Abstraction has has 578 places, 874 transitions, 27363 flow [2023-12-09 15:29:53,824 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:53,825 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:53,825 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:53,825 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-09 15:29:53,825 INFO L425 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:53,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:53,825 INFO L85 PathProgramCache]: Analyzing trace with hash 222473423, now seen corresponding path program 17 times [2023-12-09 15:29:53,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:53,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649196936] [2023-12-09 15:29:53,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:53,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:54,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:29:54,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:54,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649196936] [2023-12-09 15:29:54,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649196936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:54,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:54,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:29:54,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577202392] [2023-12-09 15:29:54,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:54,435 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:29:54,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:54,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:29:54,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:29:54,437 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:29:54,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 874 transitions, 27363 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:54,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:54,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:29:54,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:56,106 INFO L124 PetriNetUnfolderBase]: 1742/4979 cut-off events. [2023-12-09 15:29:56,107 INFO L125 PetriNetUnfolderBase]: For 144108/150549 co-relation queries the response was YES. [2023-12-09 15:29:56,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63311 conditions, 4979 events. 1742/4979 cut-off events. For 144108/150549 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 42013 event pairs, 334 based on Foata normal form. 152/4770 useless extension candidates. Maximal degree in co-relation 41614. Up to 2533 conditions per place. [2023-12-09 15:29:56,169 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 483 selfloop transitions, 62 changer transitions 197/880 dead transitions. [2023-12-09 15:29:56,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 600 places, 880 transitions, 29047 flow [2023-12-09 15:29:56,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:29:56,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:29:56,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3454 transitions. [2023-12-09 15:29:56,172 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6445232319462586 [2023-12-09 15:29:56,172 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3454 transitions. [2023-12-09 15:29:56,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3454 transitions. [2023-12-09 15:29:56,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:56,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3454 transitions. [2023-12-09 15:29:56,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 150.17391304347825) internal successors, (3454), 23 states have internal predecessors, (3454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:56,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:56,178 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:56,179 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 389 predicate places. [2023-12-09 15:29:56,179 INFO L500 AbstractCegarLoop]: Abstraction has has 600 places, 880 transitions, 29047 flow [2023-12-09 15:29:56,179 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:56,179 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:56,179 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:56,179 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-09 15:29:56,180 INFO L425 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:56,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:56,180 INFO L85 PathProgramCache]: Analyzing trace with hash 235106123, now seen corresponding path program 18 times [2023-12-09 15:29:56,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:56,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367116394] [2023-12-09 15:29:56,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:56,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:57,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:29:57,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:57,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367116394] [2023-12-09 15:29:57,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367116394] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:57,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:57,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:29:57,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978429876] [2023-12-09 15:29:57,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:57,117 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:29:57,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:57,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:29:57,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:29:57,119 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:29:57,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 600 places, 880 transitions, 29047 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:57,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:57,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:29:57,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:29:58,684 INFO L124 PetriNetUnfolderBase]: 1742/4920 cut-off events. [2023-12-09 15:29:58,684 INFO L125 PetriNetUnfolderBase]: For 158123/164813 co-relation queries the response was YES. [2023-12-09 15:29:58,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66355 conditions, 4920 events. 1742/4920 cut-off events. For 158123/164813 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 41305 event pairs, 303 based on Foata normal form. 191/4763 useless extension candidates. Maximal degree in co-relation 43678. Up to 2530 conditions per place. [2023-12-09 15:29:58,752 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 479 selfloop transitions, 65 changer transitions 202/884 dead transitions. [2023-12-09 15:29:58,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 622 places, 884 transitions, 30676 flow [2023-12-09 15:29:58,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:29:58,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:29:58,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3455 transitions. [2023-12-09 15:29:58,755 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6447098339242396 [2023-12-09 15:29:58,755 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3455 transitions. [2023-12-09 15:29:58,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3455 transitions. [2023-12-09 15:29:58,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:29:58,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3455 transitions. [2023-12-09 15:29:58,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 150.2173913043478) internal successors, (3455), 23 states have internal predecessors, (3455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:58,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:58,762 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:58,762 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 411 predicate places. [2023-12-09 15:29:58,762 INFO L500 AbstractCegarLoop]: Abstraction has has 622 places, 884 transitions, 30676 flow [2023-12-09 15:29:58,763 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:58,763 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:29:58,763 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:58,763 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-09 15:29:58,763 INFO L425 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:29:58,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:29:58,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1151505611, now seen corresponding path program 19 times [2023-12-09 15:29:58,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:29:58,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804457490] [2023-12-09 15:29:58,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:29:58,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:29:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:29:59,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:29:59,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:29:59,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804457490] [2023-12-09 15:29:59,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804457490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:29:59,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:29:59,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:29:59,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184443999] [2023-12-09 15:29:59,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:29:59,484 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:29:59,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:29:59,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:29:59,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:29:59,485 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:29:59,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 884 transitions, 30676 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:29:59,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:29:59,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:29:59,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:30:01,076 INFO L124 PetriNetUnfolderBase]: 1748/4978 cut-off events. [2023-12-09 15:30:01,076 INFO L125 PetriNetUnfolderBase]: For 174262/181729 co-relation queries the response was YES. [2023-12-09 15:30:01,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69682 conditions, 4978 events. 1748/4978 cut-off events. For 174262/181729 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 41783 event pairs, 326 based on Foata normal form. 169/4789 useless extension candidates. Maximal degree in co-relation 45949. Up to 2530 conditions per place. [2023-12-09 15:30:01,143 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 480 selfloop transitions, 70 changer transitions 207/895 dead transitions. [2023-12-09 15:30:01,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 644 places, 895 transitions, 32614 flow [2023-12-09 15:30:01,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:30:01,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:30:01,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3461 transitions. [2023-12-09 15:30:01,146 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6458294457921254 [2023-12-09 15:30:01,146 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3461 transitions. [2023-12-09 15:30:01,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3461 transitions. [2023-12-09 15:30:01,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:30:01,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3461 transitions. [2023-12-09 15:30:01,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 150.47826086956522) internal successors, (3461), 23 states have internal predecessors, (3461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:01,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:01,152 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:01,152 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 433 predicate places. [2023-12-09 15:30:01,153 INFO L500 AbstractCegarLoop]: Abstraction has has 644 places, 895 transitions, 32614 flow [2023-12-09 15:30:01,153 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:01,153 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:30:01,153 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:01,153 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-09 15:30:01,153 INFO L425 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:30:01,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:30:01,153 INFO L85 PathProgramCache]: Analyzing trace with hash 223161643, now seen corresponding path program 20 times [2023-12-09 15:30:01,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:30:01,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778658839] [2023-12-09 15:30:01,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:30:01,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:30:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:30:02,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:30:02,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:30:02,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778658839] [2023-12-09 15:30:02,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778658839] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:30:02,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:30:02,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:30:02,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467577604] [2023-12-09 15:30:02,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:30:02,045 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:30:02,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:30:02,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:30:02,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:30:02,047 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:30:02,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 644 places, 895 transitions, 32614 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:02,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:30:02,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:30:02,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:30:03,875 INFO L124 PetriNetUnfolderBase]: 1897/5349 cut-off events. [2023-12-09 15:30:03,875 INFO L125 PetriNetUnfolderBase]: For 204217/212042 co-relation queries the response was YES. [2023-12-09 15:30:03,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78720 conditions, 5349 events. 1897/5349 cut-off events. For 204217/212042 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 46054 event pairs, 340 based on Foata normal form. 169/5143 useless extension candidates. Maximal degree in co-relation 52827. Up to 2745 conditions per place. [2023-12-09 15:30:03,958 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 510 selfloop transitions, 86 changer transitions 213/947 dead transitions. [2023-12-09 15:30:03,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 668 places, 947 transitions, 36479 flow [2023-12-09 15:30:03,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-09 15:30:03,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-12-09 15:30:03,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3771 transitions. [2023-12-09 15:30:03,961 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6473819742489271 [2023-12-09 15:30:03,961 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3771 transitions. [2023-12-09 15:30:03,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3771 transitions. [2023-12-09 15:30:03,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:30:03,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3771 transitions. [2023-12-09 15:30:03,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 150.84) internal successors, (3771), 25 states have internal predecessors, (3771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:03,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 233.0) internal successors, (6058), 26 states have internal predecessors, (6058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:03,968 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 233.0) internal successors, (6058), 26 states have internal predecessors, (6058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:03,968 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 457 predicate places. [2023-12-09 15:30:03,968 INFO L500 AbstractCegarLoop]: Abstraction has has 668 places, 947 transitions, 36479 flow [2023-12-09 15:30:03,969 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:03,969 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:30:03,969 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:03,969 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-09 15:30:03,969 INFO L425 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:30:03,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:30:03,969 INFO L85 PathProgramCache]: Analyzing trace with hash -420596695, now seen corresponding path program 21 times [2023-12-09 15:30:03,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:30:03,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140664619] [2023-12-09 15:30:03,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:30:03,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:30:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:30:04,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:30:04,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:30:04,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140664619] [2023-12-09 15:30:04,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140664619] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:30:04,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:30:04,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:30:04,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735099901] [2023-12-09 15:30:04,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:30:04,823 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:30:04,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:30:04,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:30:04,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:30:04,824 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:30:04,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 668 places, 947 transitions, 36479 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:04,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:30:04,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:30:04,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:30:06,958 INFO L124 PetriNetUnfolderBase]: 1975/5544 cut-off events. [2023-12-09 15:30:06,958 INFO L125 PetriNetUnfolderBase]: For 233553/242197 co-relation queries the response was YES. [2023-12-09 15:30:06,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85389 conditions, 5544 events. 1975/5544 cut-off events. For 233553/242197 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 48354 event pairs, 355 based on Foata normal form. 212/5369 useless extension candidates. Maximal degree in co-relation 60723. Up to 2860 conditions per place. [2023-12-09 15:30:07,042 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 532 selfloop transitions, 95 changer transitions 219/984 dead transitions. [2023-12-09 15:30:07,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 692 places, 984 transitions, 39814 flow [2023-12-09 15:30:07,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-09 15:30:07,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-12-09 15:30:07,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3766 transitions. [2023-12-09 15:30:07,046 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6465236051502146 [2023-12-09 15:30:07,046 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3766 transitions. [2023-12-09 15:30:07,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3766 transitions. [2023-12-09 15:30:07,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:30:07,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3766 transitions. [2023-12-09 15:30:07,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 150.64) internal successors, (3766), 25 states have internal predecessors, (3766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:07,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 233.0) internal successors, (6058), 26 states have internal predecessors, (6058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:07,052 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 233.0) internal successors, (6058), 26 states have internal predecessors, (6058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:07,053 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 481 predicate places. [2023-12-09 15:30:07,053 INFO L500 AbstractCegarLoop]: Abstraction has has 692 places, 984 transitions, 39814 flow [2023-12-09 15:30:07,053 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:07,053 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:30:07,053 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:07,054 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-09 15:30:07,054 INFO L425 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:30:07,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:30:07,054 INFO L85 PathProgramCache]: Analyzing trace with hash -828338407, now seen corresponding path program 22 times [2023-12-09 15:30:07,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:30:07,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401686251] [2023-12-09 15:30:07,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:30:07,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:30:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:30:07,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:30:07,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:30:07,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401686251] [2023-12-09 15:30:07,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401686251] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:30:07,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:30:07,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:30:07,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934754372] [2023-12-09 15:30:07,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:30:07,748 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:30:07,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:30:07,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:30:07,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:30:07,749 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:30:07,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 692 places, 984 transitions, 39814 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:07,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:30:07,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:30:07,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:30:09,901 INFO L124 PetriNetUnfolderBase]: 2026/5629 cut-off events. [2023-12-09 15:30:09,902 INFO L125 PetriNetUnfolderBase]: For 253940/263174 co-relation queries the response was YES. [2023-12-09 15:30:10,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91406 conditions, 5629 events. 2026/5629 cut-off events. For 253940/263174 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 49272 event pairs, 361 based on Foata normal form. 208/5452 useless extension candidates. Maximal degree in co-relation 70447. Up to 2941 conditions per place. [2023-12-09 15:30:10,108 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 556 selfloop transitions, 97 changer transitions 226/1017 dead transitions. [2023-12-09 15:30:10,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 717 places, 1017 transitions, 43058 flow [2023-12-09 15:30:10,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-09 15:30:10,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-12-09 15:30:10,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 3916 transitions. [2023-12-09 15:30:10,111 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6464179597226808 [2023-12-09 15:30:10,111 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 3916 transitions. [2023-12-09 15:30:10,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 3916 transitions. [2023-12-09 15:30:10,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:30:10,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 3916 transitions. [2023-12-09 15:30:10,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 150.6153846153846) internal successors, (3916), 26 states have internal predecessors, (3916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:10,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 233.0) internal successors, (6291), 27 states have internal predecessors, (6291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:10,117 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 233.0) internal successors, (6291), 27 states have internal predecessors, (6291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:10,118 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 506 predicate places. [2023-12-09 15:30:10,118 INFO L500 AbstractCegarLoop]: Abstraction has has 717 places, 1017 transitions, 43058 flow [2023-12-09 15:30:10,118 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:10,118 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:30:10,118 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:10,118 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-09 15:30:10,119 INFO L425 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:30:10,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:30:10,119 INFO L85 PathProgramCache]: Analyzing trace with hash -170291761, now seen corresponding path program 23 times [2023-12-09 15:30:10,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:30:10,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669397286] [2023-12-09 15:30:10,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:30:10,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:30:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:30:10,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:30:10,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:30:10,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669397286] [2023-12-09 15:30:10,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669397286] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:30:10,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:30:10,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:30:10,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543617978] [2023-12-09 15:30:10,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:30:10,899 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:30:10,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:30:10,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:30:10,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:30:10,901 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:30:10,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 717 places, 1017 transitions, 43058 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:10,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:30:10,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:30:10,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:30:13,113 INFO L124 PetriNetUnfolderBase]: 2076/5785 cut-off events. [2023-12-09 15:30:13,113 INFO L125 PetriNetUnfolderBase]: For 283277/292404 co-relation queries the response was YES. [2023-12-09 15:30:13,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97447 conditions, 5785 events. 2076/5785 cut-off events. For 283277/292404 co-relation queries the response was YES. Maximal size of possible extension queue 361. Compared 51135 event pairs, 288 based on Foata normal form. 231/5617 useless extension candidates. Maximal degree in co-relation 75253. Up to 3030 conditions per place. [2023-12-09 15:30:13,198 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 583 selfloop transitions, 99 changer transitions 232/1052 dead transitions. [2023-12-09 15:30:13,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 741 places, 1052 transitions, 46621 flow [2023-12-09 15:30:13,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-09 15:30:13,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-12-09 15:30:13,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3766 transitions. [2023-12-09 15:30:13,201 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6465236051502146 [2023-12-09 15:30:13,201 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3766 transitions. [2023-12-09 15:30:13,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3766 transitions. [2023-12-09 15:30:13,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:30:13,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3766 transitions. [2023-12-09 15:30:13,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 150.64) internal successors, (3766), 25 states have internal predecessors, (3766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:13,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 233.0) internal successors, (6058), 26 states have internal predecessors, (6058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:13,209 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 233.0) internal successors, (6058), 26 states have internal predecessors, (6058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:13,209 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 530 predicate places. [2023-12-09 15:30:13,209 INFO L500 AbstractCegarLoop]: Abstraction has has 741 places, 1052 transitions, 46621 flow [2023-12-09 15:30:13,210 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:13,210 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:30:13,210 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:13,210 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-09 15:30:13,210 INFO L425 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:30:13,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:30:13,210 INFO L85 PathProgramCache]: Analyzing trace with hash 531494219, now seen corresponding path program 24 times [2023-12-09 15:30:13,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:30:13,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824679831] [2023-12-09 15:30:13,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:30:13,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:30:13,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:30:13,913 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:30:13,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:30:13,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824679831] [2023-12-09 15:30:13,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824679831] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:30:13,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:30:13,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:30:13,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578044920] [2023-12-09 15:30:13,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:30:13,914 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:30:13,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:30:13,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:30:13,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:30:13,916 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:30:13,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 741 places, 1052 transitions, 46621 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:13,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:30:13,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:30:13,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:30:16,368 INFO L124 PetriNetUnfolderBase]: 2076/5695 cut-off events. [2023-12-09 15:30:16,368 INFO L125 PetriNetUnfolderBase]: For 298308/307547 co-relation queries the response was YES. [2023-12-09 15:30:16,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101022 conditions, 5695 events. 2076/5695 cut-off events. For 298308/307547 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 50062 event pairs, 359 based on Foata normal form. 226/5532 useless extension candidates. Maximal degree in co-relation 70310. Up to 3027 conditions per place. [2023-12-09 15:30:16,448 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 593 selfloop transitions, 90 changer transitions 237/1058 dead transitions. [2023-12-09 15:30:16,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 764 places, 1058 transitions, 48745 flow [2023-12-09 15:30:16,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-09 15:30:16,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-12-09 15:30:16,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3615 transitions. [2023-12-09 15:30:16,451 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6464592274678111 [2023-12-09 15:30:16,451 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3615 transitions. [2023-12-09 15:30:16,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3615 transitions. [2023-12-09 15:30:16,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:30:16,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3615 transitions. [2023-12-09 15:30:16,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 150.625) internal successors, (3615), 24 states have internal predecessors, (3615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:16,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:16,456 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:16,457 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 553 predicate places. [2023-12-09 15:30:16,457 INFO L500 AbstractCegarLoop]: Abstraction has has 764 places, 1058 transitions, 48745 flow [2023-12-09 15:30:16,457 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:16,457 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:30:16,457 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:16,457 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-09 15:30:16,457 INFO L425 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:30:16,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:30:16,458 INFO L85 PathProgramCache]: Analyzing trace with hash -335613507, now seen corresponding path program 25 times [2023-12-09 15:30:16,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:30:16,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079946222] [2023-12-09 15:30:16,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:30:16,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:30:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:30:17,245 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:30:17,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:30:17,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079946222] [2023-12-09 15:30:17,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079946222] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:30:17,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:30:17,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:30:17,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992392596] [2023-12-09 15:30:17,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:30:17,246 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:30:17,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:30:17,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:30:17,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:30:17,249 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:30:17,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 764 places, 1058 transitions, 48745 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:17,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:30:17,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:30:17,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:30:19,959 INFO L124 PetriNetUnfolderBase]: 2124/5922 cut-off events. [2023-12-09 15:30:19,960 INFO L125 PetriNetUnfolderBase]: For 336078/345886 co-relation queries the response was YES. [2023-12-09 15:30:19,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107619 conditions, 5922 events. 2124/5922 cut-off events. For 336078/345886 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 52854 event pairs, 334 based on Foata normal form. 126/5642 useless extension candidates. Maximal degree in co-relation 75384. Up to 3124 conditions per place. [2023-12-09 15:30:20,041 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 640 selfloop transitions, 76 changer transitions 246/1100 dead transitions. [2023-12-09 15:30:20,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 786 places, 1100 transitions, 52847 flow [2023-12-09 15:30:20,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:30:20,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:30:20,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3473 transitions. [2023-12-09 15:30:20,044 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.648068669527897 [2023-12-09 15:30:20,044 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3473 transitions. [2023-12-09 15:30:20,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3473 transitions. [2023-12-09 15:30:20,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:30:20,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3473 transitions. [2023-12-09 15:30:20,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 151.0) internal successors, (3473), 23 states have internal predecessors, (3473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:20,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:20,049 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:20,050 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 575 predicate places. [2023-12-09 15:30:20,050 INFO L500 AbstractCegarLoop]: Abstraction has has 786 places, 1100 transitions, 52847 flow [2023-12-09 15:30:20,050 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:20,050 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:30:20,050 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:20,050 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-09 15:30:20,050 INFO L425 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:30:20,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:30:20,051 INFO L85 PathProgramCache]: Analyzing trace with hash 2050799623, now seen corresponding path program 26 times [2023-12-09 15:30:20,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:30:20,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436464167] [2023-12-09 15:30:20,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:30:20,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:30:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:30:20,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:30:20,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:30:20,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436464167] [2023-12-09 15:30:20,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436464167] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:30:20,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:30:20,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:30:20,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528367544] [2023-12-09 15:30:20,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:30:20,791 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:30:20,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:30:20,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:30:20,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:30:20,793 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:30:20,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 786 places, 1100 transitions, 52847 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:20,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:30:20,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:30:20,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:30:23,702 INFO L124 PetriNetUnfolderBase]: 2172/6021 cut-off events. [2023-12-09 15:30:23,702 INFO L125 PetriNetUnfolderBase]: For 364836/376237 co-relation queries the response was YES. [2023-12-09 15:30:23,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114286 conditions, 6021 events. 2172/6021 cut-off events. For 364836/376237 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 53706 event pairs, 427 based on Foata normal form. 114/5713 useless extension candidates. Maximal degree in co-relation 80675. Up to 3221 conditions per place. [2023-12-09 15:30:23,808 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 662 selfloop transitions, 86 changer transitions 253/1139 dead transitions. [2023-12-09 15:30:23,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 809 places, 1139 transitions, 56931 flow [2023-12-09 15:30:23,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-09 15:30:23,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-12-09 15:30:23,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3618 transitions. [2023-12-09 15:30:23,811 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6469957081545065 [2023-12-09 15:30:23,811 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3618 transitions. [2023-12-09 15:30:23,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3618 transitions. [2023-12-09 15:30:23,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:30:23,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3618 transitions. [2023-12-09 15:30:23,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 150.75) internal successors, (3618), 24 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:23,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:23,818 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:23,819 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 598 predicate places. [2023-12-09 15:30:23,819 INFO L500 AbstractCegarLoop]: Abstraction has has 809 places, 1139 transitions, 56931 flow [2023-12-09 15:30:23,819 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:23,819 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:30:23,819 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:23,819 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-09 15:30:23,820 INFO L425 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:30:23,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:30:23,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1849465479, now seen corresponding path program 27 times [2023-12-09 15:30:23,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:30:23,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486649928] [2023-12-09 15:30:23,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:30:23,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:30:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:30:24,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:30:24,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:30:24,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486649928] [2023-12-09 15:30:24,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486649928] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:30:24,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:30:24,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:30:24,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638451923] [2023-12-09 15:30:24,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:30:24,671 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:30:24,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:30:24,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:30:24,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:30:24,673 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:30:24,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 809 places, 1139 transitions, 56931 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:24,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:30:24,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:30:24,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:30:27,411 INFO L124 PetriNetUnfolderBase]: 2232/6357 cut-off events. [2023-12-09 15:30:27,412 INFO L125 PetriNetUnfolderBase]: For 426154/439422 co-relation queries the response was YES. [2023-12-09 15:30:27,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121673 conditions, 6357 events. 2232/6357 cut-off events. For 426154/439422 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 58110 event pairs, 332 based on Foata normal form. 133/6045 useless extension candidates. Maximal degree in co-relation 86731. Up to 3327 conditions per place. [2023-12-09 15:30:27,575 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 695 selfloop transitions, 78 changer transitions 259/1170 dead transitions. [2023-12-09 15:30:27,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 831 places, 1170 transitions, 60766 flow [2023-12-09 15:30:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:30:27,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:30:27,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3472 transitions. [2023-12-09 15:30:27,577 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6478820675499161 [2023-12-09 15:30:27,578 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3472 transitions. [2023-12-09 15:30:27,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3472 transitions. [2023-12-09 15:30:27,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:30:27,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3472 transitions. [2023-12-09 15:30:27,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 150.95652173913044) internal successors, (3472), 23 states have internal predecessors, (3472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:27,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:27,583 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:27,583 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 620 predicate places. [2023-12-09 15:30:27,583 INFO L500 AbstractCegarLoop]: Abstraction has has 831 places, 1170 transitions, 60766 flow [2023-12-09 15:30:27,583 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:27,583 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:30:27,583 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:27,584 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-09 15:30:27,584 INFO L425 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:30:27,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:30:27,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1515913731, now seen corresponding path program 28 times [2023-12-09 15:30:27,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:30:27,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629455836] [2023-12-09 15:30:27,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:30:27,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:30:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:30:28,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:30:28,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:30:28,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629455836] [2023-12-09 15:30:28,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629455836] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:30:28,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:30:28,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:30:28,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326185082] [2023-12-09 15:30:28,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:30:28,301 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:30:28,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:30:28,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:30:28,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:30:28,303 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:30:28,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 831 places, 1170 transitions, 60766 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:28,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:30:28,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:30:28,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:30:31,451 INFO L124 PetriNetUnfolderBase]: 2282/6453 cut-off events. [2023-12-09 15:30:31,451 INFO L125 PetriNetUnfolderBase]: For 461308/476357 co-relation queries the response was YES. [2023-12-09 15:30:31,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128496 conditions, 6453 events. 2282/6453 cut-off events. For 461308/476357 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 59308 event pairs, 378 based on Foata normal form. 150/6146 useless extension candidates. Maximal degree in co-relation 92088. Up to 3416 conditions per place. [2023-12-09 15:30:31,643 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 714 selfloop transitions, 83 changer transitions 265/1200 dead transitions. [2023-12-09 15:30:31,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 853 places, 1200 transitions, 64659 flow [2023-12-09 15:30:31,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:30:31,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:30:31,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3470 transitions. [2023-12-09 15:30:31,646 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6475088635939541 [2023-12-09 15:30:31,646 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3470 transitions. [2023-12-09 15:30:31,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3470 transitions. [2023-12-09 15:30:31,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:30:31,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3470 transitions. [2023-12-09 15:30:31,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 150.8695652173913) internal successors, (3470), 23 states have internal predecessors, (3470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:31,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:31,653 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:31,654 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 642 predicate places. [2023-12-09 15:30:31,654 INFO L500 AbstractCegarLoop]: Abstraction has has 853 places, 1200 transitions, 64659 flow [2023-12-09 15:30:31,655 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:31,655 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:30:31,655 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:31,655 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-09 15:30:31,655 INFO L425 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:30:31,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:30:31,656 INFO L85 PathProgramCache]: Analyzing trace with hash 623814913, now seen corresponding path program 29 times [2023-12-09 15:30:31,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:30:31,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90194797] [2023-12-09 15:30:31,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:30:31,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:30:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:30:32,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:30:32,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:30:32,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90194797] [2023-12-09 15:30:32,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90194797] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:30:32,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:30:32,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:30:32,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122723038] [2023-12-09 15:30:32,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:30:32,297 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:30:32,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:30:32,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:30:32,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:30:32,299 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:30:32,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 853 places, 1200 transitions, 64659 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:32,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:30:32,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:30:32,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:30:35,176 INFO L124 PetriNetUnfolderBase]: 2282/6499 cut-off events. [2023-12-09 15:30:35,176 INFO L125 PetriNetUnfolderBase]: For 491194/506007 co-relation queries the response was YES. [2023-12-09 15:30:35,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132584 conditions, 6499 events. 2282/6499 cut-off events. For 491194/506007 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 59718 event pairs, 415 based on Foata normal form. 123/6158 useless extension candidates. Maximal degree in co-relation 95236. Up to 3413 conditions per place. [2023-12-09 15:30:35,290 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 719 selfloop transitions, 77 changer transitions 270/1204 dead transitions. [2023-12-09 15:30:35,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 874 places, 1204 transitions, 67016 flow [2023-12-09 15:30:35,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:30:35,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:30:35,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3315 transitions. [2023-12-09 15:30:35,292 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6467030823254 [2023-12-09 15:30:35,292 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3315 transitions. [2023-12-09 15:30:35,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3315 transitions. [2023-12-09 15:30:35,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:30:35,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3315 transitions. [2023-12-09 15:30:35,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 150.6818181818182) internal successors, (3315), 22 states have internal predecessors, (3315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:35,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:35,297 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:35,298 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 663 predicate places. [2023-12-09 15:30:35,298 INFO L500 AbstractCegarLoop]: Abstraction has has 874 places, 1204 transitions, 67016 flow [2023-12-09 15:30:35,298 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:35,298 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:30:35,298 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:35,298 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-09 15:30:35,298 INFO L425 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:30:35,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:30:35,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1767149799, now seen corresponding path program 30 times [2023-12-09 15:30:35,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:30:35,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241275662] [2023-12-09 15:30:35,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:30:35,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:30:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:30:36,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:30:36,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:30:36,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241275662] [2023-12-09 15:30:36,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241275662] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:30:36,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:30:36,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:30:36,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953977041] [2023-12-09 15:30:36,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:30:36,160 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:30:36,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:30:36,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:30:36,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:30:36,162 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:30:36,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 874 places, 1204 transitions, 67016 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:36,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:30:36,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:30:36,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:30:39,266 INFO L124 PetriNetUnfolderBase]: 2292/6496 cut-off events. [2023-12-09 15:30:39,266 INFO L125 PetriNetUnfolderBase]: For 525977/541317 co-relation queries the response was YES. [2023-12-09 15:30:39,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137548 conditions, 6496 events. 2292/6496 cut-off events. For 525977/541317 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 60106 event pairs, 297 based on Foata normal form. 126/6164 useless extension candidates. Maximal degree in co-relation 98753. Up to 3433 conditions per place. [2023-12-09 15:30:39,373 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 735 selfloop transitions, 74 changer transitions 276/1223 dead transitions. [2023-12-09 15:30:39,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 895 places, 1223 transitions, 70312 flow [2023-12-09 15:30:39,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:30:39,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:30:39,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3311 transitions. [2023-12-09 15:30:39,375 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6459227467811158 [2023-12-09 15:30:39,375 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3311 transitions. [2023-12-09 15:30:39,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3311 transitions. [2023-12-09 15:30:39,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:30:39,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3311 transitions. [2023-12-09 15:30:39,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 150.5) internal successors, (3311), 22 states have internal predecessors, (3311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:39,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:39,380 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:39,380 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 684 predicate places. [2023-12-09 15:30:39,380 INFO L500 AbstractCegarLoop]: Abstraction has has 895 places, 1223 transitions, 70312 flow [2023-12-09 15:30:39,380 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:39,380 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:30:39,381 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:39,381 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-09 15:30:39,381 INFO L425 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:30:39,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:30:39,381 INFO L85 PathProgramCache]: Analyzing trace with hash 568087301, now seen corresponding path program 31 times [2023-12-09 15:30:39,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:30:39,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441855623] [2023-12-09 15:30:39,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:30:39,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:30:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:30:40,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:30:40,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:30:40,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441855623] [2023-12-09 15:30:40,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441855623] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:30:40,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:30:40,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:30:40,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125676776] [2023-12-09 15:30:40,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:30:40,080 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:30:40,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:30:40,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:30:40,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:30:40,081 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:30:40,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 895 places, 1223 transitions, 70312 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:40,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:30:40,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:30:40,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:30:43,499 INFO L124 PetriNetUnfolderBase]: 2334/6567 cut-off events. [2023-12-09 15:30:43,499 INFO L125 PetriNetUnfolderBase]: For 562761/580366 co-relation queries the response was YES. [2023-12-09 15:30:43,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144690 conditions, 6567 events. 2334/6567 cut-off events. For 562761/580366 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 60930 event pairs, 366 based on Foata normal form. 131/6230 useless extension candidates. Maximal degree in co-relation 104338. Up to 3520 conditions per place. [2023-12-09 15:30:43,633 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 754 selfloop transitions, 79 changer transitions 283/1254 dead transitions. [2023-12-09 15:30:43,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 917 places, 1254 transitions, 74497 flow [2023-12-09 15:30:43,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:30:43,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:30:43,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3471 transitions. [2023-12-09 15:30:43,652 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.647695465571935 [2023-12-09 15:30:43,653 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3471 transitions. [2023-12-09 15:30:43,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3471 transitions. [2023-12-09 15:30:43,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:30:43,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3471 transitions. [2023-12-09 15:30:43,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 150.91304347826087) internal successors, (3471), 23 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:43,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:43,659 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:43,659 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 706 predicate places. [2023-12-09 15:30:43,659 INFO L500 AbstractCegarLoop]: Abstraction has has 917 places, 1254 transitions, 74497 flow [2023-12-09 15:30:43,659 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:43,660 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:30:43,660 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:43,660 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-09 15:30:43,660 INFO L425 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:30:43,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:30:43,660 INFO L85 PathProgramCache]: Analyzing trace with hash -19987665, now seen corresponding path program 32 times [2023-12-09 15:30:43,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:30:43,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197211198] [2023-12-09 15:30:43,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:30:43,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:30:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:30:44,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:30:44,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:30:44,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197211198] [2023-12-09 15:30:44,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197211198] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:30:44,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:30:44,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:30:44,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111884229] [2023-12-09 15:30:44,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:30:44,527 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:30:44,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:30:44,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:30:44,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:30:44,528 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:30:44,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 917 places, 1254 transitions, 74497 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:44,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:30:44,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:30:44,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:30:47,884 INFO L124 PetriNetUnfolderBase]: 2412/6872 cut-off events. [2023-12-09 15:30:47,885 INFO L125 PetriNetUnfolderBase]: For 633770/652816 co-relation queries the response was YES. [2023-12-09 15:30:47,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153773 conditions, 6872 events. 2412/6872 cut-off events. For 633770/652816 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 64519 event pairs, 348 based on Foata normal form. 127/6513 useless extension candidates. Maximal degree in co-relation 111986. Up to 3635 conditions per place. [2023-12-09 15:30:48,002 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 780 selfloop transitions, 84 changer transitions 289/1291 dead transitions. [2023-12-09 15:30:48,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 939 places, 1291 transitions, 79260 flow [2023-12-09 15:30:48,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:30:48,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:30:48,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3472 transitions. [2023-12-09 15:30:48,004 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6478820675499161 [2023-12-09 15:30:48,004 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3472 transitions. [2023-12-09 15:30:48,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3472 transitions. [2023-12-09 15:30:48,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:30:48,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3472 transitions. [2023-12-09 15:30:48,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 150.95652173913044) internal successors, (3472), 23 states have internal predecessors, (3472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:48,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:48,009 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:48,009 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 728 predicate places. [2023-12-09 15:30:48,010 INFO L500 AbstractCegarLoop]: Abstraction has has 939 places, 1291 transitions, 79260 flow [2023-12-09 15:30:48,010 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:48,010 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:30:48,010 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:48,010 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-09 15:30:48,010 INFO L425 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:30:48,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:30:48,011 INFO L85 PathProgramCache]: Analyzing trace with hash -2076559129, now seen corresponding path program 33 times [2023-12-09 15:30:48,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:30:48,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570692561] [2023-12-09 15:30:48,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:30:48,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:30:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:30:48,755 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:30:48,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:30:48,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570692561] [2023-12-09 15:30:48,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570692561] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:30:48,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:30:48,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:30:48,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440453629] [2023-12-09 15:30:48,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:30:48,756 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:30:48,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:30:48,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:30:48,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:30:48,758 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:30:48,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 939 places, 1291 transitions, 79260 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:48,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:30:48,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:30:48,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:30:52,387 INFO L124 PetriNetUnfolderBase]: 2463/7068 cut-off events. [2023-12-09 15:30:52,387 INFO L125 PetriNetUnfolderBase]: For 685621/704689 co-relation queries the response was YES. [2023-12-09 15:30:52,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161842 conditions, 7068 events. 2463/7068 cut-off events. For 685621/704689 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 67268 event pairs, 332 based on Foata normal form. 133/6704 useless extension candidates. Maximal degree in co-relation 118416. Up to 3716 conditions per place. [2023-12-09 15:30:52,515 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 807 selfloop transitions, 83 changer transitions 296/1324 dead transitions. [2023-12-09 15:30:52,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 962 places, 1324 transitions, 83844 flow [2023-12-09 15:30:52,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-09 15:30:52,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-12-09 15:30:52,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3622 transitions. [2023-12-09 15:30:52,517 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6477110157367668 [2023-12-09 15:30:52,517 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3622 transitions. [2023-12-09 15:30:52,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3622 transitions. [2023-12-09 15:30:52,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:30:52,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3622 transitions. [2023-12-09 15:30:52,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 150.91666666666666) internal successors, (3622), 24 states have internal predecessors, (3622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:52,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:52,522 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:52,523 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 751 predicate places. [2023-12-09 15:30:52,523 INFO L500 AbstractCegarLoop]: Abstraction has has 962 places, 1324 transitions, 83844 flow [2023-12-09 15:30:52,523 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:52,523 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:30:52,524 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:52,524 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-09 15:30:52,524 INFO L425 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:30:52,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:30:52,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1411836131, now seen corresponding path program 34 times [2023-12-09 15:30:52,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:30:52,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044017713] [2023-12-09 15:30:52,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:30:52,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:30:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:30:53,360 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:30:53,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:30:53,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044017713] [2023-12-09 15:30:53,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044017713] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:30:53,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:30:53,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:30:53,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318843908] [2023-12-09 15:30:53,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:30:53,361 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:30:53,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:30:53,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:30:53,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:30:53,363 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:30:53,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 962 places, 1324 transitions, 83844 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:53,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:30:53,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:30:53,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:30:57,154 INFO L124 PetriNetUnfolderBase]: 2514/7234 cut-off events. [2023-12-09 15:30:57,154 INFO L125 PetriNetUnfolderBase]: For 744833/765165 co-relation queries the response was YES. [2023-12-09 15:30:57,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170083 conditions, 7234 events. 2514/7234 cut-off events. For 744833/765165 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 68790 event pairs, 421 based on Foata normal form. 115/6836 useless extension candidates. Maximal degree in co-relation 124965. Up to 3797 conditions per place. [2023-12-09 15:30:57,277 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 835 selfloop transitions, 81 changer transitions 303/1357 dead transitions. [2023-12-09 15:30:57,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 984 places, 1357 transitions, 88560 flow [2023-12-09 15:30:57,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:30:57,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:30:57,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3473 transitions. [2023-12-09 15:30:57,279 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.648068669527897 [2023-12-09 15:30:57,280 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3473 transitions. [2023-12-09 15:30:57,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3473 transitions. [2023-12-09 15:30:57,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:30:57,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3473 transitions. [2023-12-09 15:30:57,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 151.0) internal successors, (3473), 23 states have internal predecessors, (3473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:57,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:57,284 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:57,285 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 773 predicate places. [2023-12-09 15:30:57,285 INFO L500 AbstractCegarLoop]: Abstraction has has 984 places, 1357 transitions, 88560 flow [2023-12-09 15:30:57,286 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:57,286 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:30:57,286 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:57,286 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-09 15:30:57,286 INFO L425 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:30:57,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:30:57,286 INFO L85 PathProgramCache]: Analyzing trace with hash 740925191, now seen corresponding path program 35 times [2023-12-09 15:30:57,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:30:57,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156703287] [2023-12-09 15:30:57,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:30:57,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:30:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:30:58,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:30:58,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:30:58,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156703287] [2023-12-09 15:30:58,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156703287] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:30:58,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:30:58,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:30:58,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775532746] [2023-12-09 15:30:58,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:30:58,062 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:30:58,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:30:58,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:30:58,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:30:58,064 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:30:58,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 984 places, 1357 transitions, 88560 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:30:58,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:30:58,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:30:58,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:02,316 INFO L124 PetriNetUnfolderBase]: 2564/7271 cut-off events. [2023-12-09 15:31:02,316 INFO L125 PetriNetUnfolderBase]: For 780597/801269 co-relation queries the response was YES. [2023-12-09 15:31:02,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178016 conditions, 7271 events. 2564/7271 cut-off events. For 780597/801269 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 69782 event pairs, 279 based on Foata normal form. 160/6923 useless extension candidates. Maximal degree in co-relation 139500. Up to 3886 conditions per place. [2023-12-09 15:31:02,461 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 859 selfloop transitions, 86 changer transitions 309/1392 dead transitions. [2023-12-09 15:31:02,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1006 places, 1392 transitions, 93643 flow [2023-12-09 15:31:02,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:31:02,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:31:02,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3472 transitions. [2023-12-09 15:31:02,463 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6478820675499161 [2023-12-09 15:31:02,463 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3472 transitions. [2023-12-09 15:31:02,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3472 transitions. [2023-12-09 15:31:02,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:02,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3472 transitions. [2023-12-09 15:31:02,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 150.95652173913044) internal successors, (3472), 23 states have internal predecessors, (3472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:02,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:02,468 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:02,469 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 795 predicate places. [2023-12-09 15:31:02,469 INFO L500 AbstractCegarLoop]: Abstraction has has 1006 places, 1392 transitions, 93643 flow [2023-12-09 15:31:02,469 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:02,469 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:02,470 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:02,470 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-09 15:31:02,470 INFO L425 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:02,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:02,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1734244117, now seen corresponding path program 36 times [2023-12-09 15:31:02,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:02,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098064735] [2023-12-09 15:31:02,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:02,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:03,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:31:03,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:03,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098064735] [2023-12-09 15:31:03,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098064735] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:03,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:03,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:31:03,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744976057] [2023-12-09 15:31:03,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:03,224 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:31:03,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:03,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:31:03,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:31:03,226 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:31:03,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1006 places, 1392 transitions, 93643 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:03,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:03,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:31:03,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:07,531 INFO L124 PetriNetUnfolderBase]: 2591/7263 cut-off events. [2023-12-09 15:31:07,531 INFO L125 PetriNetUnfolderBase]: For 819318/839669 co-relation queries the response was YES. [2023-12-09 15:31:07,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184563 conditions, 7263 events. 2591/7263 cut-off events. For 819318/839669 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 69343 event pairs, 301 based on Foata normal form. 150/6904 useless extension candidates. Maximal degree in co-relation 136788. Up to 3912 conditions per place. [2023-12-09 15:31:07,764 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 879 selfloop transitions, 86 changer transitions 315/1418 dead transitions. [2023-12-09 15:31:07,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1027 places, 1418 transitions, 98094 flow [2023-12-09 15:31:07,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:31:07,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:31:07,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3321 transitions. [2023-12-09 15:31:07,766 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.647873585641826 [2023-12-09 15:31:07,766 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3321 transitions. [2023-12-09 15:31:07,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3321 transitions. [2023-12-09 15:31:07,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:07,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3321 transitions. [2023-12-09 15:31:07,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 150.95454545454547) internal successors, (3321), 22 states have internal predecessors, (3321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:07,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:07,771 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:07,771 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 816 predicate places. [2023-12-09 15:31:07,771 INFO L500 AbstractCegarLoop]: Abstraction has has 1027 places, 1418 transitions, 98094 flow [2023-12-09 15:31:07,772 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:07,772 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:07,772 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:07,772 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-09 15:31:07,772 INFO L425 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:07,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:07,772 INFO L85 PathProgramCache]: Analyzing trace with hash 2124092855, now seen corresponding path program 37 times [2023-12-09 15:31:07,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:07,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42044664] [2023-12-09 15:31:07,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:07,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:08,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:31:08,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:08,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42044664] [2023-12-09 15:31:08,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42044664] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:08,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:08,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:31:08,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868792277] [2023-12-09 15:31:08,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:08,440 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:31:08,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:08,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:31:08,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:31:08,442 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:31:08,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1027 places, 1418 transitions, 98094 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:08,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:08,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:31:08,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:12,875 INFO L124 PetriNetUnfolderBase]: 2591/7313 cut-off events. [2023-12-09 15:31:12,878 INFO L125 PetriNetUnfolderBase]: For 874558/896405 co-relation queries the response was YES. [2023-12-09 15:31:12,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189221 conditions, 7313 events. 2591/7313 cut-off events. For 874558/896405 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 70054 event pairs, 330 based on Foata normal form. 140/6939 useless extension candidates. Maximal degree in co-relation 140312. Up to 3909 conditions per place. [2023-12-09 15:31:13,035 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 877 selfloop transitions, 87 changer transitions 320/1422 dead transitions. [2023-12-09 15:31:13,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1048 places, 1422 transitions, 100951 flow [2023-12-09 15:31:13,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:31:13,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:31:13,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3316 transitions. [2023-12-09 15:31:13,038 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6468981662114709 [2023-12-09 15:31:13,038 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3316 transitions. [2023-12-09 15:31:13,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3316 transitions. [2023-12-09 15:31:13,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:13,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3316 transitions. [2023-12-09 15:31:13,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 150.72727272727272) internal successors, (3316), 22 states have internal predecessors, (3316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:13,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:13,043 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:13,043 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 837 predicate places. [2023-12-09 15:31:13,043 INFO L500 AbstractCegarLoop]: Abstraction has has 1048 places, 1422 transitions, 100951 flow [2023-12-09 15:31:13,043 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:13,044 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:13,044 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:13,044 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-09 15:31:13,044 INFO L425 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:13,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:13,044 INFO L85 PathProgramCache]: Analyzing trace with hash -914974413, now seen corresponding path program 38 times [2023-12-09 15:31:13,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:13,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305047152] [2023-12-09 15:31:13,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:13,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:13,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:31:13,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:13,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305047152] [2023-12-09 15:31:13,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305047152] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:13,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:13,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:31:13,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517425990] [2023-12-09 15:31:13,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:13,767 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:31:13,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:13,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:31:13,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:31:13,769 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:31:13,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1048 places, 1422 transitions, 100951 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:13,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:13,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:31:13,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:18,569 INFO L124 PetriNetUnfolderBase]: 2597/7421 cut-off events. [2023-12-09 15:31:18,569 INFO L125 PetriNetUnfolderBase]: For 938558/962556 co-relation queries the response was YES. [2023-12-09 15:31:18,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194274 conditions, 7421 events. 2597/7421 cut-off events. For 938558/962556 co-relation queries the response was YES. Maximal size of possible extension queue 530. Compared 71499 event pairs, 388 based on Foata normal form. 160/7058 useless extension candidates. Maximal degree in co-relation 144193. Up to 3909 conditions per place. [2023-12-09 15:31:18,724 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 881 selfloop transitions, 89 changer transitions 325/1433 dead transitions. [2023-12-09 15:31:18,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1069 places, 1433 transitions, 104383 flow [2023-12-09 15:31:18,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:31:18,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:31:18,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3320 transitions. [2023-12-09 15:31:18,728 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6476785017557549 [2023-12-09 15:31:18,728 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3320 transitions. [2023-12-09 15:31:18,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3320 transitions. [2023-12-09 15:31:18,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:18,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3320 transitions. [2023-12-09 15:31:18,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 150.9090909090909) internal successors, (3320), 22 states have internal predecessors, (3320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:18,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:18,734 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:18,734 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 858 predicate places. [2023-12-09 15:31:18,734 INFO L500 AbstractCegarLoop]: Abstraction has has 1069 places, 1433 transitions, 104383 flow [2023-12-09 15:31:18,735 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:18,735 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:18,735 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:18,735 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-09 15:31:18,735 INFO L425 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:18,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:18,736 INFO L85 PathProgramCache]: Analyzing trace with hash 329013269, now seen corresponding path program 39 times [2023-12-09 15:31:18,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:18,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719047030] [2023-12-09 15:31:18,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:18,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:19,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:31:19,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:19,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719047030] [2023-12-09 15:31:19,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719047030] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:19,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:19,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:31:19,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181836325] [2023-12-09 15:31:19,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:19,565 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:31:19,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:19,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:31:19,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:31:19,567 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:31:19,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1069 places, 1433 transitions, 104383 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:19,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:19,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:31:19,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:24,436 INFO L124 PetriNetUnfolderBase]: 2603/7436 cut-off events. [2023-12-09 15:31:24,437 INFO L125 PetriNetUnfolderBase]: For 996153/1020676 co-relation queries the response was YES. [2023-12-09 15:31:24,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199866 conditions, 7436 events. 2603/7436 cut-off events. For 996153/1020676 co-relation queries the response was YES. Maximal size of possible extension queue 530. Compared 71520 event pairs, 347 based on Foata normal form. 145/7060 useless extension candidates. Maximal degree in co-relation 148348. Up to 3926 conditions per place. [2023-12-09 15:31:24,601 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 892 selfloop transitions, 86 changer transitions 331/1447 dead transitions. [2023-12-09 15:31:24,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1090 places, 1447 transitions, 108086 flow [2023-12-09 15:31:24,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:31:24,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:31:24,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3318 transitions. [2023-12-09 15:31:24,603 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.647288333983613 [2023-12-09 15:31:24,603 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3318 transitions. [2023-12-09 15:31:24,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3318 transitions. [2023-12-09 15:31:24,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:24,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3318 transitions. [2023-12-09 15:31:24,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 150.8181818181818) internal successors, (3318), 22 states have internal predecessors, (3318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:24,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:24,608 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:24,608 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 879 predicate places. [2023-12-09 15:31:24,608 INFO L500 AbstractCegarLoop]: Abstraction has has 1090 places, 1447 transitions, 108086 flow [2023-12-09 15:31:24,608 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:24,608 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:24,609 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:24,609 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-09 15:31:24,609 INFO L425 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:24,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:24,609 INFO L85 PathProgramCache]: Analyzing trace with hash -254596421, now seen corresponding path program 40 times [2023-12-09 15:31:24,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:24,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824562123] [2023-12-09 15:31:24,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:24,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:25,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:31:25,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:25,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824562123] [2023-12-09 15:31:25,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824562123] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:25,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:25,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:31:25,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607198849] [2023-12-09 15:31:25,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:25,275 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:31:25,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:25,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:31:25,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:31:25,278 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:31:25,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1090 places, 1447 transitions, 108086 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:25,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:25,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:31:25,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:30,044 INFO L124 PetriNetUnfolderBase]: 2603/7331 cut-off events. [2023-12-09 15:31:30,044 INFO L125 PetriNetUnfolderBase]: For 1019064/1044463 co-relation queries the response was YES. [2023-12-09 15:31:30,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204384 conditions, 7331 events. 2603/7331 cut-off events. For 1019064/1044463 co-relation queries the response was YES. Maximal size of possible extension queue 530. Compared 70136 event pairs, 380 based on Foata normal form. 147/6960 useless extension candidates. Maximal degree in co-relation 151828. Up to 3923 conditions per place. [2023-12-09 15:31:30,215 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 890 selfloop transitions, 87 changer transitions 336/1451 dead transitions. [2023-12-09 15:31:30,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1111 places, 1451 transitions, 111025 flow [2023-12-09 15:31:30,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:31:30,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:31:30,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3314 transitions. [2023-12-09 15:31:30,218 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6465079984393289 [2023-12-09 15:31:30,218 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3314 transitions. [2023-12-09 15:31:30,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3314 transitions. [2023-12-09 15:31:30,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:30,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3314 transitions. [2023-12-09 15:31:30,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 150.63636363636363) internal successors, (3314), 22 states have internal predecessors, (3314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:30,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:30,223 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:30,223 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 900 predicate places. [2023-12-09 15:31:30,223 INFO L500 AbstractCegarLoop]: Abstraction has has 1111 places, 1451 transitions, 111025 flow [2023-12-09 15:31:30,223 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:30,224 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:30,224 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:30,224 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-09 15:31:30,224 INFO L425 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:30,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:30,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1014718573, now seen corresponding path program 41 times [2023-12-09 15:31:30,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:30,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882718706] [2023-12-09 15:31:30,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:30,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:30,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:31:30,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:30,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882718706] [2023-12-09 15:31:30,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882718706] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:30,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:30,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:31:30,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548871441] [2023-12-09 15:31:30,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:30,843 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:31:30,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:30,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:31:30,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:31:30,845 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:31:30,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1111 places, 1451 transitions, 111025 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:30,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:30,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:31:30,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:35,850 INFO L124 PetriNetUnfolderBase]: 2603/7286 cut-off events. [2023-12-09 15:31:35,850 INFO L125 PetriNetUnfolderBase]: For 1064628/1091173 co-relation queries the response was YES. [2023-12-09 15:31:35,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208956 conditions, 7286 events. 2603/7286 cut-off events. For 1064628/1091173 co-relation queries the response was YES. Maximal size of possible extension queue 530. Compared 69434 event pairs, 441 based on Foata normal form. 143/6921 useless extension candidates. Maximal degree in co-relation 155317. Up to 3920 conditions per place. [2023-12-09 15:31:36,016 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 893 selfloop transitions, 85 changer transitions 341/1457 dead transitions. [2023-12-09 15:31:36,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1132 places, 1457 transitions, 114151 flow [2023-12-09 15:31:36,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:31:36,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:31:36,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3313 transitions. [2023-12-09 15:31:36,018 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6463129145532579 [2023-12-09 15:31:36,018 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3313 transitions. [2023-12-09 15:31:36,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3313 transitions. [2023-12-09 15:31:36,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:36,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3313 transitions. [2023-12-09 15:31:36,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 150.5909090909091) internal successors, (3313), 22 states have internal predecessors, (3313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:36,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:36,024 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:36,025 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 921 predicate places. [2023-12-09 15:31:36,026 INFO L500 AbstractCegarLoop]: Abstraction has has 1132 places, 1457 transitions, 114151 flow [2023-12-09 15:31:36,026 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:36,026 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:36,026 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:36,026 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-09 15:31:36,026 INFO L425 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:36,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:36,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1545361905, now seen corresponding path program 42 times [2023-12-09 15:31:36,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:36,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145444847] [2023-12-09 15:31:36,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:36,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:36,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:31:36,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:36,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145444847] [2023-12-09 15:31:36,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145444847] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:36,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:36,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:31:36,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661104585] [2023-12-09 15:31:36,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:36,722 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:31:36,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:36,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:31:36,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:31:36,724 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:31:36,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1132 places, 1457 transitions, 114151 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:36,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:36,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:31:36,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:42,027 INFO L124 PetriNetUnfolderBase]: 2645/7494 cut-off events. [2023-12-09 15:31:42,028 INFO L125 PetriNetUnfolderBase]: For 1144395/1172710 co-relation queries the response was YES. [2023-12-09 15:31:42,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217798 conditions, 7494 events. 2645/7494 cut-off events. For 1144395/1172710 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 72796 event pairs, 288 based on Foata normal form. 123/7101 useless extension candidates. Maximal degree in co-relation 171322. Up to 4007 conditions per place. [2023-12-09 15:31:42,197 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 906 selfloop transitions, 102 changer transitions 348/1494 dead transitions. [2023-12-09 15:31:42,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1155 places, 1494 transitions, 120029 flow [2023-12-09 15:31:42,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-09 15:31:42,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-12-09 15:31:42,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3618 transitions. [2023-12-09 15:31:42,199 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6469957081545065 [2023-12-09 15:31:42,199 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3618 transitions. [2023-12-09 15:31:42,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3618 transitions. [2023-12-09 15:31:42,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:42,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3618 transitions. [2023-12-09 15:31:42,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 150.75) internal successors, (3618), 24 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:42,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:42,204 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:42,205 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 944 predicate places. [2023-12-09 15:31:42,205 INFO L500 AbstractCegarLoop]: Abstraction has has 1155 places, 1494 transitions, 120029 flow [2023-12-09 15:31:42,206 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:42,206 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:42,206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:42,206 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-09 15:31:42,206 INFO L425 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:42,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:42,206 INFO L85 PathProgramCache]: Analyzing trace with hash 423790299, now seen corresponding path program 43 times [2023-12-09 15:31:42,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:42,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561305604] [2023-12-09 15:31:42,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:42,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:42,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:31:42,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:42,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561305604] [2023-12-09 15:31:42,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561305604] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:42,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:42,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:31:42,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19922484] [2023-12-09 15:31:42,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:42,900 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:31:42,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:42,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:31:42,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:31:42,902 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:31:42,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1155 places, 1494 transitions, 120029 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:42,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:42,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:31:42,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:48,399 INFO L124 PetriNetUnfolderBase]: 2695/7681 cut-off events. [2023-12-09 15:31:48,399 INFO L125 PetriNetUnfolderBase]: For 1238290/1266676 co-relation queries the response was YES. [2023-12-09 15:31:48,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226849 conditions, 7681 events. 2695/7681 cut-off events. For 1238290/1266676 co-relation queries the response was YES. Maximal size of possible extension queue 555. Compared 74639 event pairs, 311 based on Foata normal form. 128/7281 useless extension candidates. Maximal degree in co-relation 169911. Up to 4096 conditions per place. [2023-12-09 15:31:48,686 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 929 selfloop transitions, 98 changer transitions 354/1519 dead transitions. [2023-12-09 15:31:48,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1177 places, 1519 transitions, 124994 flow [2023-12-09 15:31:48,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:31:48,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:31:48,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3470 transitions. [2023-12-09 15:31:48,688 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6475088635939541 [2023-12-09 15:31:48,688 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3470 transitions. [2023-12-09 15:31:48,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3470 transitions. [2023-12-09 15:31:48,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:48,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3470 transitions. [2023-12-09 15:31:48,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 150.8695652173913) internal successors, (3470), 23 states have internal predecessors, (3470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:48,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:48,693 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:48,693 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 966 predicate places. [2023-12-09 15:31:48,693 INFO L500 AbstractCegarLoop]: Abstraction has has 1177 places, 1519 transitions, 124994 flow [2023-12-09 15:31:48,694 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:48,694 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:48,694 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:48,694 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-09 15:31:48,694 INFO L425 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:48,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:48,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1731448353, now seen corresponding path program 44 times [2023-12-09 15:31:48,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:48,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691298900] [2023-12-09 15:31:48,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:48,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:48,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:49,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:31:49,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:49,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691298900] [2023-12-09 15:31:49,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691298900] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:49,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:49,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:31:49,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594048963] [2023-12-09 15:31:49,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:49,342 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:31:49,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:49,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:31:49,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:31:49,344 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:31:49,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1177 places, 1519 transitions, 124994 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:49,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:49,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:31:49,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:54,802 INFO L124 PetriNetUnfolderBase]: 2695/7700 cut-off events. [2023-12-09 15:31:54,802 INFO L125 PetriNetUnfolderBase]: For 1291670/1323746 co-relation queries the response was YES. [2023-12-09 15:31:54,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231652 conditions, 7700 events. 2695/7700 cut-off events. For 1291670/1323746 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 75106 event pairs, 376 based on Foata normal form. 115/7282 useless extension candidates. Maximal degree in co-relation 173613. Up to 4093 conditions per place. [2023-12-09 15:31:55,125 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 933 selfloop transitions, 93 changer transitions 359/1523 dead transitions. [2023-12-09 15:31:55,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1198 places, 1523 transitions, 128109 flow [2023-12-09 15:31:55,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:31:55,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:31:55,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3315 transitions. [2023-12-09 15:31:55,127 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6467030823254 [2023-12-09 15:31:55,127 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3315 transitions. [2023-12-09 15:31:55,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3315 transitions. [2023-12-09 15:31:55,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:55,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3315 transitions. [2023-12-09 15:31:55,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 150.6818181818182) internal successors, (3315), 22 states have internal predecessors, (3315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:55,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:55,134 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:55,134 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 987 predicate places. [2023-12-09 15:31:55,135 INFO L500 AbstractCegarLoop]: Abstraction has has 1198 places, 1523 transitions, 128109 flow [2023-12-09 15:31:55,135 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:55,135 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:55,135 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:55,135 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-09 15:31:55,136 INFO L425 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:55,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:55,136 INFO L85 PathProgramCache]: Analyzing trace with hash 124473089, now seen corresponding path program 45 times [2023-12-09 15:31:55,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:55,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338437117] [2023-12-09 15:31:55,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:55,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:55,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:55,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:31:55,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:55,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338437117] [2023-12-09 15:31:55,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338437117] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:55,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:55,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:31:55,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724156377] [2023-12-09 15:31:55,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:55,916 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:31:55,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:55,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:31:55,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:31:55,918 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:31:55,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1198 places, 1523 transitions, 128109 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:55,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:55,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:31:55,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:01,729 INFO L124 PetriNetUnfolderBase]: 2725/7667 cut-off events. [2023-12-09 15:32:01,730 INFO L125 PetriNetUnfolderBase]: For 1340092/1373630 co-relation queries the response was YES. [2023-12-09 15:32:01,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239166 conditions, 7667 events. 2725/7667 cut-off events. For 1340092/1373630 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 74808 event pairs, 295 based on Foata normal form. 127/7260 useless extension candidates. Maximal degree in co-relation 188490. Up to 4148 conditions per place. [2023-12-09 15:32:01,920 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 957 selfloop transitions, 96 changer transitions 365/1556 dead transitions. [2023-12-09 15:32:01,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1220 places, 1556 transitions, 134044 flow [2023-12-09 15:32:01,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:32:01,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:32:01,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3472 transitions. [2023-12-09 15:32:01,922 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6478820675499161 [2023-12-09 15:32:01,922 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3472 transitions. [2023-12-09 15:32:01,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3472 transitions. [2023-12-09 15:32:01,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:01,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3472 transitions. [2023-12-09 15:32:01,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 150.95652173913044) internal successors, (3472), 23 states have internal predecessors, (3472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:01,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:01,928 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:01,928 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 1009 predicate places. [2023-12-09 15:32:01,928 INFO L500 AbstractCegarLoop]: Abstraction has has 1220 places, 1556 transitions, 134044 flow [2023-12-09 15:32:01,928 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:01,928 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:01,928 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:01,929 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-09 15:32:01,929 INFO L425 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:32:01,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:01,929 INFO L85 PathProgramCache]: Analyzing trace with hash 55052925, now seen corresponding path program 46 times [2023-12-09 15:32:01,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:01,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038933883] [2023-12-09 15:32:01,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:01,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:02,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:32:02,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:02,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038933883] [2023-12-09 15:32:02,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038933883] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:32:02,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:32:02,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:32:02,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117099628] [2023-12-09 15:32:02,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:02,552 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:32:02,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:02,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:32:02,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:32:02,553 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:32:02,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1220 places, 1556 transitions, 134044 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:02,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:02,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:32:02,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:08,403 INFO L124 PetriNetUnfolderBase]: 2735/7858 cut-off events. [2023-12-09 15:32:08,404 INFO L125 PetriNetUnfolderBase]: For 1458633/1495004 co-relation queries the response was YES. [2023-12-09 15:32:08,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245599 conditions, 7858 events. 2735/7858 cut-off events. For 1458633/1495004 co-relation queries the response was YES. Maximal size of possible extension queue 572. Compared 77038 event pairs, 374 based on Foata normal form. 103/7407 useless extension candidates. Maximal degree in co-relation 184548. Up to 4168 conditions per place. [2023-12-09 15:32:08,741 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 976 selfloop transitions, 90 changer transitions 371/1575 dead transitions. [2023-12-09 15:32:08,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1241 places, 1575 transitions, 138652 flow [2023-12-09 15:32:08,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:32:08,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:32:08,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3311 transitions. [2023-12-09 15:32:08,744 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6459227467811158 [2023-12-09 15:32:08,744 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3311 transitions. [2023-12-09 15:32:08,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3311 transitions. [2023-12-09 15:32:08,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:08,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3311 transitions. [2023-12-09 15:32:08,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 150.5) internal successors, (3311), 22 states have internal predecessors, (3311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:08,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:08,749 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:08,749 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 1030 predicate places. [2023-12-09 15:32:08,749 INFO L500 AbstractCegarLoop]: Abstraction has has 1241 places, 1575 transitions, 138652 flow [2023-12-09 15:32:08,750 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:08,750 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:08,750 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:08,750 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-09 15:32:08,750 INFO L425 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:32:08,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:08,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1770317469, now seen corresponding path program 47 times [2023-12-09 15:32:08,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:08,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806022614] [2023-12-09 15:32:08,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:08,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:09,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:32:09,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:09,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806022614] [2023-12-09 15:32:09,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806022614] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:32:09,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:32:09,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:32:09,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287961716] [2023-12-09 15:32:09,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:09,434 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:32:09,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:09,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:32:09,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:32:09,436 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:32:09,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1241 places, 1575 transitions, 138652 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:09,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:09,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:32:09,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:15,404 INFO L124 PetriNetUnfolderBase]: 2777/7876 cut-off events. [2023-12-09 15:32:15,404 INFO L125 PetriNetUnfolderBase]: For 1502666/1539531 co-relation queries the response was YES. [2023-12-09 15:32:15,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254955 conditions, 7876 events. 2777/7876 cut-off events. For 1502666/1539531 co-relation queries the response was YES. Maximal size of possible extension queue 596. Compared 77751 event pairs, 285 based on Foata normal form. 116/7446 useless extension candidates. Maximal degree in co-relation 194583. Up to 4255 conditions per place. [2023-12-09 15:32:15,607 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 995 selfloop transitions, 95 changer transitions 378/1606 dead transitions. [2023-12-09 15:32:15,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1263 places, 1606 transitions, 144533 flow [2023-12-09 15:32:15,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:32:15,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:32:15,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3471 transitions. [2023-12-09 15:32:15,610 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.647695465571935 [2023-12-09 15:32:15,610 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3471 transitions. [2023-12-09 15:32:15,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3471 transitions. [2023-12-09 15:32:15,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:15,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3471 transitions. [2023-12-09 15:32:15,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 150.91304347826087) internal successors, (3471), 23 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:15,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:15,615 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:15,615 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 1052 predicate places. [2023-12-09 15:32:15,615 INFO L500 AbstractCegarLoop]: Abstraction has has 1263 places, 1606 transitions, 144533 flow [2023-12-09 15:32:15,615 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:15,615 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:15,616 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:15,616 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-09 15:32:15,616 INFO L425 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:32:15,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:15,616 INFO L85 PathProgramCache]: Analyzing trace with hash 397356241, now seen corresponding path program 48 times [2023-12-09 15:32:15,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:15,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886184797] [2023-12-09 15:32:15,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:15,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:16,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:32:16,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:16,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886184797] [2023-12-09 15:32:16,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886184797] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:32:16,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:32:16,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:32:16,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876558427] [2023-12-09 15:32:16,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:16,372 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:32:16,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:16,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:32:16,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:32:16,375 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:32:16,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1263 places, 1606 transitions, 144533 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:16,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:16,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:32:16,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:23,377 INFO L124 PetriNetUnfolderBase]: 2827/8111 cut-off events. [2023-12-09 15:32:23,377 INFO L125 PetriNetUnfolderBase]: For 1633501/1675395 co-relation queries the response was YES. [2023-12-09 15:32:23,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 264763 conditions, 8111 events. 2827/8111 cut-off events. For 1633501/1675395 co-relation queries the response was YES. Maximal size of possible extension queue 615. Compared 80652 event pairs, 389 based on Foata normal form. 122/7660 useless extension candidates. Maximal degree in co-relation 200395. Up to 4344 conditions per place. [2023-12-09 15:32:23,724 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 1017 selfloop transitions, 100 changer transitions 384/1639 dead transitions. [2023-12-09 15:32:23,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1285 places, 1639 transitions, 150780 flow [2023-12-09 15:32:23,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:32:23,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:32:23,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3472 transitions. [2023-12-09 15:32:23,726 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6478820675499161 [2023-12-09 15:32:23,726 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3472 transitions. [2023-12-09 15:32:23,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3472 transitions. [2023-12-09 15:32:23,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:23,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3472 transitions. [2023-12-09 15:32:23,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 150.95652173913044) internal successors, (3472), 23 states have internal predecessors, (3472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:23,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:23,731 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:23,740 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 1074 predicate places. [2023-12-09 15:32:23,740 INFO L500 AbstractCegarLoop]: Abstraction has has 1285 places, 1639 transitions, 150780 flow [2023-12-09 15:32:23,741 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:23,741 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:23,741 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:23,741 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-09 15:32:23,741 INFO L425 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:32:23,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:23,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1816850875, now seen corresponding path program 49 times [2023-12-09 15:32:23,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:23,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287558381] [2023-12-09 15:32:23,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:23,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:24,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:32:24,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:24,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287558381] [2023-12-09 15:32:24,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287558381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:32:24,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:32:24,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:32:24,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511889906] [2023-12-09 15:32:24,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:24,470 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:32:24,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:24,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:32:24,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:32:24,471 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:32:24,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1285 places, 1639 transitions, 150780 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:24,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:24,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:32:24,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:31,846 INFO L124 PetriNetUnfolderBase]: 2878/8206 cut-off events. [2023-12-09 15:32:31,846 INFO L125 PetriNetUnfolderBase]: For 1701590/1744364 co-relation queries the response was YES. [2023-12-09 15:32:31,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275146 conditions, 8206 events. 2878/8206 cut-off events. For 1701590/1744364 co-relation queries the response was YES. Maximal size of possible extension queue 627. Compared 81905 event pairs, 337 based on Foata normal form. 125/7755 useless extension candidates. Maximal degree in co-relation 217903. Up to 4425 conditions per place. [2023-12-09 15:32:32,086 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 1044 selfloop transitions, 99 changer transitions 391/1672 dead transitions. [2023-12-09 15:32:32,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1308 places, 1672 transitions, 157116 flow [2023-12-09 15:32:32,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-09 15:32:32,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-12-09 15:32:32,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3622 transitions. [2023-12-09 15:32:32,089 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6477110157367668 [2023-12-09 15:32:32,089 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3622 transitions. [2023-12-09 15:32:32,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3622 transitions. [2023-12-09 15:32:32,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:32,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3622 transitions. [2023-12-09 15:32:32,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 150.91666666666666) internal successors, (3622), 24 states have internal predecessors, (3622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:32,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:32,095 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 233.0) internal successors, (5825), 25 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:32,095 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 1097 predicate places. [2023-12-09 15:32:32,095 INFO L500 AbstractCegarLoop]: Abstraction has has 1308 places, 1672 transitions, 157116 flow [2023-12-09 15:32:32,096 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:32,096 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:32,096 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:32,096 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-09 15:32:32,096 INFO L425 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:32:32,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:32,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1885936923, now seen corresponding path program 50 times [2023-12-09 15:32:32,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:32,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617191067] [2023-12-09 15:32:32,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:32,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:32,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:32,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:32:32,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:32,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617191067] [2023-12-09 15:32:32,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617191067] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:32:32,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:32:32,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:32:32,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359180656] [2023-12-09 15:32:32,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:32,915 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:32:32,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:32,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:32:32,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:32:32,916 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:32:32,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1308 places, 1672 transitions, 157116 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:32,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:32,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:32:32,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:40,475 INFO L124 PetriNetUnfolderBase]: 2929/8399 cut-off events. [2023-12-09 15:32:40,476 INFO L125 PetriNetUnfolderBase]: For 1806602/1848163 co-relation queries the response was YES. [2023-12-09 15:32:40,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285829 conditions, 8399 events. 2929/8399 cut-off events. For 1806602/1848163 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 84155 event pairs, 389 based on Foata normal form. 115/7918 useless extension candidates. Maximal degree in co-relation 217616. Up to 4506 conditions per place. [2023-12-09 15:32:40,816 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 1072 selfloop transitions, 97 changer transitions 398/1705 dead transitions. [2023-12-09 15:32:40,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1330 places, 1705 transitions, 163584 flow [2023-12-09 15:32:40,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:32:40,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:32:40,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3473 transitions. [2023-12-09 15:32:40,818 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.648068669527897 [2023-12-09 15:32:40,818 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3473 transitions. [2023-12-09 15:32:40,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3473 transitions. [2023-12-09 15:32:40,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:40,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3473 transitions. [2023-12-09 15:32:40,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 151.0) internal successors, (3473), 23 states have internal predecessors, (3473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:40,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:40,823 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:40,823 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 1119 predicate places. [2023-12-09 15:32:40,824 INFO L500 AbstractCegarLoop]: Abstraction has has 1330 places, 1705 transitions, 163584 flow [2023-12-09 15:32:40,824 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:40,824 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:40,824 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:40,824 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-09 15:32:40,824 INFO L425 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:32:40,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:40,825 INFO L85 PathProgramCache]: Analyzing trace with hash 693507579, now seen corresponding path program 51 times [2023-12-09 15:32:40,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:40,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041821528] [2023-12-09 15:32:40,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:40,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:41,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:32:41,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:41,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041821528] [2023-12-09 15:32:41,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041821528] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:32:41,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:32:41,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:32:41,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976028073] [2023-12-09 15:32:41,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:41,584 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:32:41,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:41,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:32:41,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:32:41,585 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:32:41,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1330 places, 1705 transitions, 163584 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:41,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:41,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:32:41,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:49,307 INFO L124 PetriNetUnfolderBase]: 2959/8530 cut-off events. [2023-12-09 15:32:49,307 INFO L125 PetriNetUnfolderBase]: For 1925084/1970667 co-relation queries the response was YES. [2023-12-09 15:32:49,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294307 conditions, 8530 events. 2959/8530 cut-off events. For 1925084/1970667 co-relation queries the response was YES. Maximal size of possible extension queue 647. Compared 85456 event pairs, 458 based on Foata normal form. 119/8039 useless extension candidates. Maximal degree in co-relation 224487. Up to 4561 conditions per place. [2023-12-09 15:32:49,778 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 1094 selfloop transitions, 102 changer transitions 404/1738 dead transitions. [2023-12-09 15:32:49,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1352 places, 1738 transitions, 170279 flow [2023-12-09 15:32:49,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:32:49,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:32:49,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3472 transitions. [2023-12-09 15:32:49,781 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6478820675499161 [2023-12-09 15:32:49,781 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3472 transitions. [2023-12-09 15:32:49,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3472 transitions. [2023-12-09 15:32:49,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:49,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3472 transitions. [2023-12-09 15:32:49,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 150.95652173913044) internal successors, (3472), 23 states have internal predecessors, (3472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:49,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:49,787 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 233.0) internal successors, (5592), 24 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:49,787 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 1141 predicate places. [2023-12-09 15:32:49,787 INFO L500 AbstractCegarLoop]: Abstraction has has 1352 places, 1738 transitions, 170279 flow [2023-12-09 15:32:49,787 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:49,787 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:49,787 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:49,788 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-09 15:32:49,788 INFO L425 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:32:49,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:49,788 INFO L85 PathProgramCache]: Analyzing trace with hash -2143379273, now seen corresponding path program 52 times [2023-12-09 15:32:49,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:49,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874626710] [2023-12-09 15:32:49,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:49,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:50,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:32:50,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:50,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874626710] [2023-12-09 15:32:50,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874626710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:32:50,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:32:50,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:32:50,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124241213] [2023-12-09 15:32:50,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:50,427 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:32:50,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:50,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:32:50,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:32:50,428 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:32:50,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1352 places, 1738 transitions, 170279 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:50,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:50,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:32:50,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:58,097 INFO L124 PetriNetUnfolderBase]: 2986/8632 cut-off events. [2023-12-09 15:32:58,097 INFO L125 PetriNetUnfolderBase]: For 2020332/2067218 co-relation queries the response was YES. [2023-12-09 15:32:58,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302545 conditions, 8632 events. 2986/8632 cut-off events. For 2020332/2067218 co-relation queries the response was YES. Maximal size of possible extension queue 652. Compared 86744 event pairs, 446 based on Foata normal form. 106/8122 useless extension candidates. Maximal degree in co-relation 231143. Up to 4587 conditions per place. [2023-12-09 15:32:58,340 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 1114 selfloop transitions, 102 changer transitions 410/1764 dead transitions. [2023-12-09 15:32:58,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1373 places, 1764 transitions, 176254 flow [2023-12-09 15:32:58,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:32:58,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:32:58,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3321 transitions. [2023-12-09 15:32:58,342 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.647873585641826 [2023-12-09 15:32:58,342 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3321 transitions. [2023-12-09 15:32:58,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3321 transitions. [2023-12-09 15:32:58,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:58,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3321 transitions. [2023-12-09 15:32:58,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 150.95454545454547) internal successors, (3321), 22 states have internal predecessors, (3321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:58,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:58,347 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:58,347 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 1162 predicate places. [2023-12-09 15:32:58,347 INFO L500 AbstractCegarLoop]: Abstraction has has 1373 places, 1764 transitions, 176254 flow [2023-12-09 15:32:58,348 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:58,348 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:58,348 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:58,348 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-09 15:32:58,348 INFO L425 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:32:58,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:58,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1620631735, now seen corresponding path program 53 times [2023-12-09 15:32:58,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:58,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801669799] [2023-12-09 15:32:58,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:58,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:58,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:59,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:32:59,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:59,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801669799] [2023-12-09 15:32:59,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801669799] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:32:59,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:32:59,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:32:59,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021626659] [2023-12-09 15:32:59,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:59,007 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:32:59,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:59,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:32:59,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:32:59,008 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:32:59,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1373 places, 1764 transitions, 176254 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:59,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:59,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:32:59,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:33:07,514 INFO L124 PetriNetUnfolderBase]: 2992/8637 cut-off events. [2023-12-09 15:33:07,514 INFO L125 PetriNetUnfolderBase]: For 2076602/2125738 co-relation queries the response was YES. [2023-12-09 15:33:07,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309183 conditions, 8637 events. 2992/8637 cut-off events. For 2076602/2125738 co-relation queries the response was YES. Maximal size of possible extension queue 660. Compared 87314 event pairs, 363 based on Foata normal form. 108/8140 useless extension candidates. Maximal degree in co-relation 236251. Up to 4604 conditions per place. [2023-12-09 15:33:07,770 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 1124 selfloop transitions, 100 changer transitions 416/1778 dead transitions. [2023-12-09 15:33:07,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1394 places, 1778 transitions, 181011 flow [2023-12-09 15:33:07,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:33:07,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:33:07,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3318 transitions. [2023-12-09 15:33:07,772 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.647288333983613 [2023-12-09 15:33:07,773 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3318 transitions. [2023-12-09 15:33:07,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3318 transitions. [2023-12-09 15:33:07,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:33:07,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3318 transitions. [2023-12-09 15:33:07,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 150.8181818181818) internal successors, (3318), 22 states have internal predecessors, (3318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:33:07,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:33:07,777 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:33:07,778 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 1183 predicate places. [2023-12-09 15:33:07,778 INFO L500 AbstractCegarLoop]: Abstraction has has 1394 places, 1778 transitions, 181011 flow [2023-12-09 15:33:07,778 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:33:07,778 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:33:07,778 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:07,778 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-09 15:33:07,778 INFO L425 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:33:07,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:33:07,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1274247527, now seen corresponding path program 54 times [2023-12-09 15:33:07,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:33:07,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261886614] [2023-12-09 15:33:07,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:33:07,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:33:07,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:33:08,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:33:08,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:33:08,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261886614] [2023-12-09 15:33:08,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261886614] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:33:08,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:33:08,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:33:08,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909921007] [2023-12-09 15:33:08,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:33:08,402 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:33:08,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:33:08,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:33:08,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:33:08,403 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:33:08,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1394 places, 1778 transitions, 181011 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:33:08,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:33:08,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:33:08,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:33:17,005 INFO L124 PetriNetUnfolderBase]: 2998/8614 cut-off events. [2023-12-09 15:33:17,005 INFO L125 PetriNetUnfolderBase]: For 2151163/2202945 co-relation queries the response was YES. [2023-12-09 15:33:17,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314990 conditions, 8614 events. 2998/8614 cut-off events. For 2151163/2202945 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 87217 event pairs, 313 based on Foata normal form. 133/8148 useless extension candidates. Maximal degree in co-relation 240987. Up to 4604 conditions per place. [2023-12-09 15:33:17,404 INFO L140 encePairwiseOnDemand]: 207/233 looper letters, 1124 selfloop transitions, 106 changer transitions 421/1789 dead transitions. [2023-12-09 15:33:17,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1415 places, 1789 transitions, 185507 flow [2023-12-09 15:33:17,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:33:17,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:33:17,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3320 transitions. [2023-12-09 15:33:17,406 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6476785017557549 [2023-12-09 15:33:17,406 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3320 transitions. [2023-12-09 15:33:17,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3320 transitions. [2023-12-09 15:33:17,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:33:17,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3320 transitions. [2023-12-09 15:33:17,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 150.9090909090909) internal successors, (3320), 22 states have internal predecessors, (3320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:33:17,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:33:17,411 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 233.0) internal successors, (5359), 23 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:33:17,411 INFO L308 CegarLoopForPetriNet]: 211 programPoint places, 1204 predicate places. [2023-12-09 15:33:17,411 INFO L500 AbstractCegarLoop]: Abstraction has has 1415 places, 1789 transitions, 185507 flow [2023-12-09 15:33:17,412 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:33:17,412 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:33:17,412 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:17,412 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-09 15:33:17,412 INFO L425 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:33:17,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:33:17,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1753530535, now seen corresponding path program 55 times [2023-12-09 15:33:17,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:33:17,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550722581] [2023-12-09 15:33:17,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:33:17,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:33:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:33:18,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:33:18,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:33:18,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550722581] [2023-12-09 15:33:18,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550722581] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:33:18,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:33:18,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:33:18,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389724326] [2023-12-09 15:33:18,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:33:18,074 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:33:18,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:33:18,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:33:18,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:33:18,076 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 233 [2023-12-09 15:33:18,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1415 places, 1789 transitions, 185507 flow. Second operand has 18 states, 18 states have (on average 146.55555555555554) internal successors, (2638), 18 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:33:18,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:33:18,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 233 [2023-12-09 15:33:18,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-12-09 15:33:18,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-09 15:33:18,456 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-12-09 15:33:18,456 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-12-09 15:33:18,456 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (18states, 143/233 universal loopers) in iteration 59,while PetriNetUnfolder was constructing finite prefix that currently has 10754 conditions, 462 events (32/461 cut-off events. For 107003/115645 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2017 event pairs, 4 based on Foata normal form. 7/462 useless extension candidates. Maximal degree in co-relation 8869. Up to 85 conditions per place.). [2023-12-09 15:33:18,457 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-12-09 15:33:18,457 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-12-09 15:33:18,457 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-12-09 15:33:18,458 INFO L457 BasicCegarLoop]: Path program histogram: [55, 2, 1, 1] [2023-12-09 15:33:18,460 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:33:18,460 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:33:18,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:33:18 BasicIcfg [2023-12-09 15:33:18,464 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:33:18,464 INFO L158 Benchmark]: Toolchain (without parser) took 240071.53ms. Allocated memory was 220.2MB in the beginning and 7.2GB in the end (delta: 6.9GB). Free memory was 158.4MB in the beginning and 3.9GB in the end (delta: -3.8GB). Peak memory consumption was 3.2GB. Max. memory is 8.0GB. [2023-12-09 15:33:18,464 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 220.2MB. Free memory is still 170.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:33:18,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.90ms. Allocated memory is still 220.2MB. Free memory was 158.1MB in the beginning and 145.7MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-09 15:33:18,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.63ms. Allocated memory is still 220.2MB. Free memory was 145.7MB in the beginning and 143.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:33:18,465 INFO L158 Benchmark]: Boogie Preprocessor took 22.93ms. Allocated memory is still 220.2MB. Free memory was 142.9MB in the beginning and 141.1MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 15:33:18,465 INFO L158 Benchmark]: RCFGBuilder took 562.12ms. Allocated memory was 220.2MB in the beginning and 264.2MB in the end (delta: 44.0MB). Free memory was 141.1MB in the beginning and 196.7MB in the end (delta: -55.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-09 15:33:18,465 INFO L158 Benchmark]: TraceAbstraction took 239225.91ms. Allocated memory was 264.2MB in the beginning and 7.2GB in the end (delta: 6.9GB). Free memory was 195.7MB in the beginning and 3.9GB in the end (delta: -3.7GB). Peak memory consumption was 3.1GB. Max. memory is 8.0GB. [2023-12-09 15:33:18,466 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2023-12-09 15:33:18,469 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 --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 220.2MB. Free memory is still 170.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 216.90ms. Allocated memory is still 220.2MB. Free memory was 158.1MB in the beginning and 145.7MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.63ms. Allocated memory is still 220.2MB. Free memory was 145.7MB in the beginning and 143.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.93ms. Allocated memory is still 220.2MB. Free memory was 142.9MB in the beginning and 141.1MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 562.12ms. Allocated memory was 220.2MB in the beginning and 264.2MB in the end (delta: 44.0MB). Free memory was 141.1MB in the beginning and 196.7MB in the end (delta: -55.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 239225.91ms. Allocated memory was 264.2MB in the beginning and 7.2GB in the end (delta: 6.9GB). Free memory was 195.7MB in the beginning and 3.9GB in the end (delta: -3.7GB). Peak memory consumption was 3.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 135]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (18states, 143/233 universal loopers) in iteration 59,while PetriNetUnfolder was constructing finite prefix that currently has 10754 conditions, 462 events (32/461 cut-off events. For 107003/115645 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2017 event pairs, 4 based on Foata normal form. 7/462 useless extension candidates. Maximal degree in co-relation 8869. Up to 85 conditions per place.). - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (18states, 143/233 universal loopers) in iteration 59,while PetriNetUnfolder was constructing finite prefix that currently has 10754 conditions, 462 events (32/461 cut-off events. For 107003/115645 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2017 event pairs, 4 based on Foata normal form. 7/462 useless extension candidates. Maximal degree in co-relation 8869. Up to 85 conditions per place.). - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (18states, 143/233 universal loopers) in iteration 59,while PetriNetUnfolder was constructing finite prefix that currently has 10754 conditions, 462 events (32/461 cut-off events. For 107003/115645 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2017 event pairs, 4 based on Foata normal form. 7/462 useless extension candidates. Maximal degree in co-relation 8869. Up to 85 conditions per place.). - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (18states, 143/233 universal loopers) in iteration 59,while PetriNetUnfolder was constructing finite prefix that currently has 10754 conditions, 462 events (32/461 cut-off events. For 107003/115645 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2017 event pairs, 4 based on Foata normal form. 7/462 useless extension candidates. Maximal degree in co-relation 8869. Up to 85 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 256 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 239.1s, OverallIterations: 59, TraceHistogramMax: 1, PathProgramHistogramMax: 55, EmptinessCheckTime: 0.0s, AutomataDifference: 195.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5281 SdHoareTripleChecker+Valid, 17.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5281 mSDsluCounter, 25913 SdHoareTripleChecker+Invalid, 14.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22472 mSDsCounter, 618 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39801 IncrementalHoareTripleChecker+Invalid, 40419 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 618 mSolverCounterUnsat, 3441 mSDtfsCounter, 39801 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1426 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1308 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7360 ImplicationChecksByTransitivity, 14.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=185507occurred in iteration=58, InterpolantAutomatonStates: 1263, 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: 0.2s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 39.7s InterpolantComputationTime, 11263 NumberOfCodeBlocks, 11263 NumberOfCodeBlocksAsserted, 59 NumberOfCheckSat, 11204 ConstructedInterpolants, 0 QuantifiedInterpolants, 144347 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 59 InterpolantComputations, 59 PerfectInterpolantSequences, 111/111 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