/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/parallel-misc-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:17:35,558 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:17:35,630 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 15:17:35,650 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:17:35,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:17:35,651 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:17:35,652 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:17:35,652 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:17:35,652 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:17:35,655 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:17:35,656 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:17:35,656 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:17:35,656 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:17:35,657 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:17:35,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:17:35,658 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:17:35,658 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:17:35,658 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:17:35,658 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:17:35,658 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:17:35,658 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:17:35,659 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:17:35,659 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:17:35,660 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:17:35,660 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:17:35,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:17:35,660 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:17:35,660 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:17:35,660 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:17:35,661 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:17:35,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:17:35,661 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:17:35,662 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:17:35,662 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:17:35,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:17:35,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:17:35,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:17:35,833 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:17:35,834 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:17:35,835 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c [2023-12-09 15:17:36,851 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:17:37,020 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:17:37,021 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c [2023-12-09 15:17:37,028 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37ef33676/4adce0443ab9459889ce0123e05efdf0/FLAG6d2771f2b [2023-12-09 15:17:37,042 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37ef33676/4adce0443ab9459889ce0123e05efdf0 [2023-12-09 15:17:37,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:17:37,045 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:17:37,048 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:17:37,048 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:17:37,051 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:17:37,052 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:17:37" (1/1) ... [2023-12-09 15:17:37,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@159f573b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:37, skipping insertion in model container [2023-12-09 15:17:37,053 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:17:37" (1/1) ... [2023-12-09 15:17:37,076 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:17:37,223 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/parallel-misc-1.wvr.c[2781,2794] [2023-12-09 15:17:37,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:17:37,239 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:17:37,269 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/parallel-misc-1.wvr.c[2781,2794] [2023-12-09 15:17:37,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:17:37,286 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:17:37,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:37 WrapperNode [2023-12-09 15:17:37,286 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:17:37,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:17:37,288 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:17:37,288 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:17:37,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:37" (1/1) ... [2023-12-09 15:17:37,299 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:37" (1/1) ... [2023-12-09 15:17:37,325 INFO L138 Inliner]: procedures = 23, calls = 41, calls flagged for inlining = 17, calls inlined = 31, statements flattened = 289 [2023-12-09 15:17:37,325 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:17:37,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:17:37,326 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:17:37,326 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:17:37,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:37" (1/1) ... [2023-12-09 15:17:37,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:37" (1/1) ... [2023-12-09 15:17:37,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:37" (1/1) ... [2023-12-09 15:17:37,341 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:37" (1/1) ... [2023-12-09 15:17:37,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:37" (1/1) ... [2023-12-09 15:17:37,365 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:37" (1/1) ... [2023-12-09 15:17:37,366 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:37" (1/1) ... [2023-12-09 15:17:37,367 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:37" (1/1) ... [2023-12-09 15:17:37,370 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:17:37,375 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:17:37,375 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:17:37,375 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:17:37,376 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:37" (1/1) ... [2023-12-09 15:17:37,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:17:37,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:17:37,409 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 15:17:37,415 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 15:17:37,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:17:37,435 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:17:37,435 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:17:37,435 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:17:37,436 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:17:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:17:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:17:37,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:17:37,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-09 15:17:37,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:17:37,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:17:37,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:17:37,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:17:37,438 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 15:17:37,550 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:17:37,552 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:17:37,894 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:17:37,905 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:17:37,906 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-09 15:17:37,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:17:37 BoogieIcfgContainer [2023-12-09 15:17:37,907 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:17:37,909 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:17:37,909 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:17:37,911 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:17:37,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:17:37" (1/3) ... [2023-12-09 15:17:37,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371434c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:17:37, skipping insertion in model container [2023-12-09 15:17:37,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:37" (2/3) ... [2023-12-09 15:17:37,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371434c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:17:37, skipping insertion in model container [2023-12-09 15:17:37,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:17:37" (3/3) ... [2023-12-09 15:17:37,913 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-1.wvr.c [2023-12-09 15:17:37,925 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:17:37,925 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:17:37,926 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:17:37,998 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-09 15:17:38,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 384 places, 405 transitions, 824 flow [2023-12-09 15:17:38,154 INFO L124 PetriNetUnfolderBase]: 28/403 cut-off events. [2023-12-09 15:17:38,155 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:17:38,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 403 events. 28/403 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 906 event pairs, 0 based on Foata normal form. 0/374 useless extension candidates. Maximal degree in co-relation 273. Up to 2 conditions per place. [2023-12-09 15:17:38,167 INFO L82 GeneralOperation]: Start removeDead. Operand has 384 places, 405 transitions, 824 flow [2023-12-09 15:17:38,173 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 373 places, 394 transitions, 800 flow [2023-12-09 15:17:38,186 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:17:38,191 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;@75845710, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:17:38,192 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-09 15:17:38,259 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:17:38,260 INFO L124 PetriNetUnfolderBase]: 28/393 cut-off events. [2023-12-09 15:17:38,260 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:17:38,260 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:17:38,260 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] [2023-12-09 15:17:38,261 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:17:38,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:17:38,266 INFO L85 PathProgramCache]: Analyzing trace with hash -965175137, now seen corresponding path program 1 times [2023-12-09 15:17:38,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:17:38,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681129104] [2023-12-09 15:17:38,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:17:38,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:17:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:17:39,405 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 15:17:39,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:17:39,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681129104] [2023-12-09 15:17:39,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681129104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:17:39,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:17:39,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:17:39,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713671199] [2023-12-09 15:17:39,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:17:39,414 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:17:39,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:17:39,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:17:39,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:17:39,451 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 405 [2023-12-09 15:17:39,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 394 transitions, 800 flow. Second operand has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:39,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:17:39,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 405 [2023-12-09 15:17:39,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:17:43,409 INFO L124 PetriNetUnfolderBase]: 5659/18755 cut-off events. [2023-12-09 15:17:43,410 INFO L125 PetriNetUnfolderBase]: For 487/487 co-relation queries the response was YES. [2023-12-09 15:17:43,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29970 conditions, 18755 events. 5659/18755 cut-off events. For 487/487 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 185855 event pairs, 1203 based on Foata normal form. 1941/19519 useless extension candidates. Maximal degree in co-relation 28929. Up to 5843 conditions per place. [2023-12-09 15:17:43,505 INFO L140 encePairwiseOnDemand]: 334/405 looper letters, 784 selfloop transitions, 83 changer transitions 46/1144 dead transitions. [2023-12-09 15:17:43,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 1144 transitions, 4207 flow [2023-12-09 15:17:43,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-09 15:17:43,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2023-12-09 15:17:43,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 11196 transitions. [2023-12-09 15:17:43,533 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6582010582010582 [2023-12-09 15:17:43,534 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 11196 transitions. [2023-12-09 15:17:43,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 11196 transitions. [2023-12-09 15:17:43,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:17:43,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 11196 transitions. [2023-12-09 15:17:43,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 266.57142857142856) internal successors, (11196), 42 states have internal predecessors, (11196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:43,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 405.0) internal successors, (17415), 43 states have internal predecessors, (17415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:43,596 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 405.0) internal successors, (17415), 43 states have internal predecessors, (17415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:43,599 INFO L308 CegarLoopForPetriNet]: 373 programPoint places, 41 predicate places. [2023-12-09 15:17:43,599 INFO L500 AbstractCegarLoop]: Abstraction has has 414 places, 1144 transitions, 4207 flow [2023-12-09 15:17:43,601 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:43,601 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:17:43,601 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] [2023-12-09 15:17:43,601 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:17:43,602 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:17:43,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:17:43,602 INFO L85 PathProgramCache]: Analyzing trace with hash -2047673159, now seen corresponding path program 2 times [2023-12-09 15:17:43,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:17:43,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484690915] [2023-12-09 15:17:43,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:17:43,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:17:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:17:44,129 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 15:17:44,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:17:44,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484690915] [2023-12-09 15:17:44,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484690915] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:17:44,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:17:44,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:17:44,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144273170] [2023-12-09 15:17:44,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:17:44,132 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:17:44,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:17:44,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:17:44,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:17:44,135 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 405 [2023-12-09 15:17:44,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 1144 transitions, 4207 flow. Second operand has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:44,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:17:44,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 405 [2023-12-09 15:17:44,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:17:48,254 INFO L124 PetriNetUnfolderBase]: 6360/20977 cut-off events. [2023-12-09 15:17:48,254 INFO L125 PetriNetUnfolderBase]: For 2894/3742 co-relation queries the response was YES. [2023-12-09 15:17:48,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45902 conditions, 20977 events. 6360/20977 cut-off events. For 2894/3742 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 212013 event pairs, 1142 based on Foata normal form. 56/19745 useless extension candidates. Maximal degree in co-relation 44702. Up to 6707 conditions per place. [2023-12-09 15:17:48,381 INFO L140 encePairwiseOnDemand]: 357/405 looper letters, 1122 selfloop transitions, 251 changer transitions 68/1672 dead transitions. [2023-12-09 15:17:48,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 1672 transitions, 9216 flow [2023-12-09 15:17:48,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-12-09 15:17:48,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2023-12-09 15:17:48,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 13684 transitions. [2023-12-09 15:17:48,404 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6256973022405121 [2023-12-09 15:17:48,404 INFO L72 ComplementDD]: Start complementDD. Operand 54 states and 13684 transitions. [2023-12-09 15:17:48,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 13684 transitions. [2023-12-09 15:17:48,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:17:48,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 54 states and 13684 transitions. [2023-12-09 15:17:48,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 55 states, 54 states have (on average 253.40740740740742) internal successors, (13684), 54 states have internal predecessors, (13684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:48,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 55 states, 55 states have (on average 405.0) internal successors, (22275), 55 states have internal predecessors, (22275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:48,468 INFO L81 ComplementDD]: Finished complementDD. Result has 55 states, 55 states have (on average 405.0) internal successors, (22275), 55 states have internal predecessors, (22275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:48,468 INFO L308 CegarLoopForPetriNet]: 373 programPoint places, 94 predicate places. [2023-12-09 15:17:48,469 INFO L500 AbstractCegarLoop]: Abstraction has has 467 places, 1672 transitions, 9216 flow [2023-12-09 15:17:48,470 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:48,470 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:17:48,470 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] [2023-12-09 15:17:48,471 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:17:48,471 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:17:48,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:17:48,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1250303343, now seen corresponding path program 3 times [2023-12-09 15:17:48,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:17:48,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241776308] [2023-12-09 15:17:48,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:17:48,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:17:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:17:49,034 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 15:17:49,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:17:49,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241776308] [2023-12-09 15:17:49,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241776308] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:17:49,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:17:49,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:17:49,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41184726] [2023-12-09 15:17:49,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:17:49,038 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:17:49,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:17:49,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:17:49,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:17:49,043 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 405 [2023-12-09 15:17:49,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 1672 transitions, 9216 flow. Second operand has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:49,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:17:49,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 405 [2023-12-09 15:17:49,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:17:54,200 INFO L124 PetriNetUnfolderBase]: 6981/22985 cut-off events. [2023-12-09 15:17:54,200 INFO L125 PetriNetUnfolderBase]: For 8148/10156 co-relation queries the response was YES. [2023-12-09 15:17:54,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63964 conditions, 22985 events. 6981/22985 cut-off events. For 8148/10156 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 236084 event pairs, 753 based on Foata normal form. 59/21643 useless extension candidates. Maximal degree in co-relation 62139. Up to 7127 conditions per place. [2023-12-09 15:17:54,332 INFO L140 encePairwiseOnDemand]: 357/405 looper letters, 1534 selfloop transitions, 429 changer transitions 94/2288 dead transitions. [2023-12-09 15:17:54,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 2288 transitions, 17041 flow [2023-12-09 15:17:54,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-12-09 15:17:54,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2023-12-09 15:17:54,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 14705 transitions. [2023-12-09 15:17:54,355 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6260110685398041 [2023-12-09 15:17:54,355 INFO L72 ComplementDD]: Start complementDD. Operand 58 states and 14705 transitions. [2023-12-09 15:17:54,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 14705 transitions. [2023-12-09 15:17:54,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:17:54,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 58 states and 14705 transitions. [2023-12-09 15:17:54,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 59 states, 58 states have (on average 253.5344827586207) internal successors, (14705), 58 states have internal predecessors, (14705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:54,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 59 states, 59 states have (on average 405.0) internal successors, (23895), 59 states have internal predecessors, (23895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:54,410 INFO L81 ComplementDD]: Finished complementDD. Result has 59 states, 59 states have (on average 405.0) internal successors, (23895), 59 states have internal predecessors, (23895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:54,411 INFO L308 CegarLoopForPetriNet]: 373 programPoint places, 151 predicate places. [2023-12-09 15:17:54,411 INFO L500 AbstractCegarLoop]: Abstraction has has 524 places, 2288 transitions, 17041 flow [2023-12-09 15:17:54,412 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:54,412 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:17:54,412 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] [2023-12-09 15:17:54,413 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:17:54,413 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:17:54,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:17:54,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1326943581, now seen corresponding path program 4 times [2023-12-09 15:17:54,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:17:54,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267041052] [2023-12-09 15:17:54,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:17:54,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:17:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:17:54,847 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 15:17:54,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:17:54,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267041052] [2023-12-09 15:17:54,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267041052] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:17:54,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:17:54,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:17:54,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937347548] [2023-12-09 15:17:54,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:17:54,849 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:17:54,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:17:54,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:17:54,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:17:54,852 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 405 [2023-12-09 15:17:54,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 2288 transitions, 17041 flow. Second operand has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:54,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:17:54,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 405 [2023-12-09 15:17:54,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:17:59,991 INFO L124 PetriNetUnfolderBase]: 7426/24481 cut-off events. [2023-12-09 15:17:59,992 INFO L125 PetriNetUnfolderBase]: For 17188/21747 co-relation queries the response was YES. [2023-12-09 15:18:00,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82648 conditions, 24481 events. 7426/24481 cut-off events. For 17188/21747 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 255842 event pairs, 697 based on Foata normal form. 271/23269 useless extension candidates. Maximal degree in co-relation 80884. Up to 7532 conditions per place. [2023-12-09 15:18:00,144 INFO L140 encePairwiseOnDemand]: 357/405 looper letters, 1852 selfloop transitions, 446 changer transitions 120/2649 dead transitions. [2023-12-09 15:18:00,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 572 places, 2649 transitions, 24786 flow [2023-12-09 15:18:00,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-09 15:18:00,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2023-12-09 15:18:00,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 12437 transitions. [2023-12-09 15:18:00,154 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6267069790879315 [2023-12-09 15:18:00,154 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 12437 transitions. [2023-12-09 15:18:00,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 12437 transitions. [2023-12-09 15:18:00,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:00,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 12437 transitions. [2023-12-09 15:18:00,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 253.81632653061226) internal successors, (12437), 49 states have internal predecessors, (12437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:00,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 405.0) internal successors, (20250), 50 states have internal predecessors, (20250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:00,195 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 405.0) internal successors, (20250), 50 states have internal predecessors, (20250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:00,198 INFO L308 CegarLoopForPetriNet]: 373 programPoint places, 199 predicate places. [2023-12-09 15:18:00,199 INFO L500 AbstractCegarLoop]: Abstraction has has 572 places, 2649 transitions, 24786 flow [2023-12-09 15:18:00,200 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:00,200 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:00,200 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] [2023-12-09 15:18:00,201 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:18:00,201 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:18:00,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:00,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1438193087, now seen corresponding path program 5 times [2023-12-09 15:18:00,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:00,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428489249] [2023-12-09 15:18:00,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:00,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:00,731 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 15:18:00,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:00,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428489249] [2023-12-09 15:18:00,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428489249] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:00,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:18:00,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:18:00,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176089527] [2023-12-09 15:18:00,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:00,732 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:18:00,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:00,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:18:00,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:18:00,735 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 405 [2023-12-09 15:18:00,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 572 places, 2649 transitions, 24786 flow. Second operand has 20 states, 20 states have (on average 226.5) internal successors, (4530), 20 states have internal predecessors, (4530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:00,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:00,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 405 [2023-12-09 15:18:00,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:10,331 INFO L124 PetriNetUnfolderBase]: 13633/39483 cut-off events. [2023-12-09 15:18:10,332 INFO L125 PetriNetUnfolderBase]: For 50621/55124 co-relation queries the response was YES. [2023-12-09 15:18:10,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158614 conditions, 39483 events. 13633/39483 cut-off events. For 50621/55124 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 419968 event pairs, 1027 based on Foata normal form. 290/37171 useless extension candidates. Maximal degree in co-relation 155617. Up to 15509 conditions per place. [2023-12-09 15:18:10,596 INFO L140 encePairwiseOnDemand]: 357/405 looper letters, 2614 selfloop transitions, 614 changer transitions 147/3588 dead transitions. [2023-12-09 15:18:10,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 620 places, 3588 transitions, 40323 flow [2023-12-09 15:18:10,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-09 15:18:10,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2023-12-09 15:18:10,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 12034 transitions. [2023-12-09 15:18:10,708 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6063995968757874 [2023-12-09 15:18:10,708 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 12034 transitions. [2023-12-09 15:18:10,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 12034 transitions. [2023-12-09 15:18:10,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:10,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 12034 transitions. [2023-12-09 15:18:10,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 245.59183673469389) internal successors, (12034), 49 states have internal predecessors, (12034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:10,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 405.0) internal successors, (20250), 50 states have internal predecessors, (20250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:10,740 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 405.0) internal successors, (20250), 50 states have internal predecessors, (20250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:10,742 INFO L308 CegarLoopForPetriNet]: 373 programPoint places, 247 predicate places. [2023-12-09 15:18:10,743 INFO L500 AbstractCegarLoop]: Abstraction has has 620 places, 3588 transitions, 40323 flow [2023-12-09 15:18:10,743 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 226.5) internal successors, (4530), 20 states have internal predecessors, (4530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:10,743 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:10,743 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] [2023-12-09 15:18:10,744 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:18:10,744 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:18:10,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:10,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1994079843, now seen corresponding path program 6 times [2023-12-09 15:18:10,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:10,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762175316] [2023-12-09 15:18:10,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:10,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:11,131 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 15:18:11,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:11,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762175316] [2023-12-09 15:18:11,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762175316] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:11,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:18:11,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:18:11,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081779515] [2023-12-09 15:18:11,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:11,132 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:18:11,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:11,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:18:11,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:18:11,135 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 405 [2023-12-09 15:18:11,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 620 places, 3588 transitions, 40323 flow. Second operand has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:11,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:11,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 405 [2023-12-09 15:18:11,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:21,225 INFO L124 PetriNetUnfolderBase]: 14127/40994 cut-off events. [2023-12-09 15:18:21,226 INFO L125 PetriNetUnfolderBase]: For 81147/87072 co-relation queries the response was YES. [2023-12-09 15:18:21,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187971 conditions, 40994 events. 14127/40994 cut-off events. For 81147/87072 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 437973 event pairs, 1532 based on Foata normal form. 393/38691 useless extension candidates. Maximal degree in co-relation 184032. Up to 16051 conditions per place. [2023-12-09 15:18:21,519 INFO L140 encePairwiseOnDemand]: 357/405 looper letters, 2688 selfloop transitions, 704 changer transitions 174/3875 dead transitions. [2023-12-09 15:18:21,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 672 places, 3875 transitions, 50938 flow [2023-12-09 15:18:21,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-12-09 15:18:21,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2023-12-09 15:18:21,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 13455 transitions. [2023-12-09 15:18:21,527 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6268343815513627 [2023-12-09 15:18:21,527 INFO L72 ComplementDD]: Start complementDD. Operand 53 states and 13455 transitions. [2023-12-09 15:18:21,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 13455 transitions. [2023-12-09 15:18:21,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:21,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 53 states and 13455 transitions. [2023-12-09 15:18:21,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 54 states, 53 states have (on average 253.8679245283019) internal successors, (13455), 53 states have internal predecessors, (13455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:21,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 54 states, 54 states have (on average 405.0) internal successors, (21870), 54 states have internal predecessors, (21870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:21,553 INFO L81 ComplementDD]: Finished complementDD. Result has 54 states, 54 states have (on average 405.0) internal successors, (21870), 54 states have internal predecessors, (21870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:21,554 INFO L308 CegarLoopForPetriNet]: 373 programPoint places, 299 predicate places. [2023-12-09 15:18:21,554 INFO L500 AbstractCegarLoop]: Abstraction has has 672 places, 3875 transitions, 50938 flow [2023-12-09 15:18:21,554 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:21,554 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:21,554 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] [2023-12-09 15:18:21,555 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:18:21,555 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:18:21,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:21,555 INFO L85 PathProgramCache]: Analyzing trace with hash 376679689, now seen corresponding path program 7 times [2023-12-09 15:18:21,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:21,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983304026] [2023-12-09 15:18:21,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:21,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:22,089 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 15:18:22,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:22,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983304026] [2023-12-09 15:18:22,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983304026] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:22,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:18:22,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:18:22,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437476343] [2023-12-09 15:18:22,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:22,091 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:18:22,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:22,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:18:22,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:18:22,095 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 405 [2023-12-09 15:18:22,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 672 places, 3875 transitions, 50938 flow. Second operand has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:22,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:22,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 405 [2023-12-09 15:18:22,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:32,956 INFO L124 PetriNetUnfolderBase]: 14388/41613 cut-off events. [2023-12-09 15:18:32,956 INFO L125 PetriNetUnfolderBase]: For 117031/123111 co-relation queries the response was YES. [2023-12-09 15:18:33,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215549 conditions, 41613 events. 14388/41613 cut-off events. For 117031/123111 co-relation queries the response was YES. Maximal size of possible extension queue 476. Compared 445741 event pairs, 1525 based on Foata normal form. 388/39292 useless extension candidates. Maximal degree in co-relation 210979. Up to 16430 conditions per place. [2023-12-09 15:18:33,254 INFO L140 encePairwiseOnDemand]: 357/405 looper letters, 2860 selfloop transitions, 697 changer transitions 200/4066 dead transitions. [2023-12-09 15:18:33,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 713 places, 4066 transitions, 61144 flow [2023-12-09 15:18:33,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-09 15:18:33,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2023-12-09 15:18:33,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 10732 transitions. [2023-12-09 15:18:33,260 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6309229864785421 [2023-12-09 15:18:33,260 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 10732 transitions. [2023-12-09 15:18:33,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 10732 transitions. [2023-12-09 15:18:33,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:33,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 10732 transitions. [2023-12-09 15:18:33,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 255.52380952380952) internal successors, (10732), 42 states have internal predecessors, (10732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:33,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 405.0) internal successors, (17415), 43 states have internal predecessors, (17415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:33,280 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 405.0) internal successors, (17415), 43 states have internal predecessors, (17415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:33,282 INFO L308 CegarLoopForPetriNet]: 373 programPoint places, 340 predicate places. [2023-12-09 15:18:33,282 INFO L500 AbstractCegarLoop]: Abstraction has has 713 places, 4066 transitions, 61144 flow [2023-12-09 15:18:33,282 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:33,282 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:33,283 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] [2023-12-09 15:18:33,283 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:18:33,283 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:18:33,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:33,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1570276215, now seen corresponding path program 8 times [2023-12-09 15:18:33,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:33,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183385917] [2023-12-09 15:18:33,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:33,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:33,673 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 15:18:33,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:33,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183385917] [2023-12-09 15:18:33,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183385917] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:33,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:18:33,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:18:33,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519720929] [2023-12-09 15:18:33,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:33,674 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:18:33,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:33,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:18:33,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:18:33,676 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 405 [2023-12-09 15:18:33,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 713 places, 4066 transitions, 61144 flow. Second operand has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:33,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:33,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 405 [2023-12-09 15:18:33,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:46,809 INFO L124 PetriNetUnfolderBase]: 14793/42613 cut-off events. [2023-12-09 15:18:46,809 INFO L125 PetriNetUnfolderBase]: For 163076/170499 co-relation queries the response was YES. [2023-12-09 15:18:46,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245810 conditions, 42613 events. 14793/42613 cut-off events. For 163076/170499 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 457163 event pairs, 1587 based on Foata normal form. 395/40260 useless extension candidates. Maximal degree in co-relation 240200. Up to 16898 conditions per place. [2023-12-09 15:18:47,250 INFO L140 encePairwiseOnDemand]: 357/405 looper letters, 2988 selfloop transitions, 782 changer transitions 227/4306 dead transitions. [2023-12-09 15:18:47,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 758 places, 4306 transitions, 73017 flow [2023-12-09 15:18:47,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-12-09 15:18:47,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2023-12-09 15:18:47,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 11757 transitions. [2023-12-09 15:18:47,286 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6310789049919485 [2023-12-09 15:18:47,286 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 11757 transitions. [2023-12-09 15:18:47,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 11757 transitions. [2023-12-09 15:18:47,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:47,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 11757 transitions. [2023-12-09 15:18:47,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 255.58695652173913) internal successors, (11757), 46 states have internal predecessors, (11757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:47,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 405.0) internal successors, (19035), 47 states have internal predecessors, (19035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:47,344 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 405.0) internal successors, (19035), 47 states have internal predecessors, (19035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:47,361 INFO L308 CegarLoopForPetriNet]: 373 programPoint places, 385 predicate places. [2023-12-09 15:18:47,362 INFO L500 AbstractCegarLoop]: Abstraction has has 758 places, 4306 transitions, 73017 flow [2023-12-09 15:18:47,362 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:47,363 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:47,363 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] [2023-12-09 15:18:47,363 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 15:18:47,366 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:18:47,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:47,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1224796017, now seen corresponding path program 9 times [2023-12-09 15:18:47,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:47,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221048754] [2023-12-09 15:18:47,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:47,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:48,073 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 15:18:48,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:48,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221048754] [2023-12-09 15:18:48,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221048754] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:48,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:18:48,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:18:48,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714074337] [2023-12-09 15:18:48,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:48,075 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:18:48,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:48,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:18:48,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:18:48,078 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 405 [2023-12-09 15:18:48,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 758 places, 4306 transitions, 73017 flow. Second operand has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:18:48,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:48,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 405 [2023-12-09 15:18:48,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:19:02,495 INFO L124 PetriNetUnfolderBase]: 14835/42754 cut-off events. [2023-12-09 15:19:02,495 INFO L125 PetriNetUnfolderBase]: For 211609/220232 co-relation queries the response was YES. [2023-12-09 15:19:02,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271627 conditions, 42754 events. 14835/42754 cut-off events. For 211609/220232 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 459436 event pairs, 1592 based on Foata normal form. 404/40405 useless extension candidates. Maximal degree in co-relation 265025. Up to 17024 conditions per place. [2023-12-09 15:19:02,873 INFO L140 encePairwiseOnDemand]: 357/405 looper letters, 3032 selfloop transitions, 756 changer transitions 258/4355 dead transitions. [2023-12-09 15:19:02,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 789 places, 4355 transitions, 82015 flow [2023-12-09 15:19:02,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-09 15:19:02,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-12-09 15:19:02,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 8289 transitions. [2023-12-09 15:19:02,879 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6395833333333333 [2023-12-09 15:19:02,879 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 8289 transitions. [2023-12-09 15:19:02,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 8289 transitions. [2023-12-09 15:19:02,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:19:02,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 8289 transitions. [2023-12-09 15:19:02,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 259.03125) internal successors, (8289), 32 states have internal predecessors, (8289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:02,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 405.0) internal successors, (13365), 33 states have internal predecessors, (13365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:02,893 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 405.0) internal successors, (13365), 33 states have internal predecessors, (13365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:02,894 INFO L308 CegarLoopForPetriNet]: 373 programPoint places, 416 predicate places. [2023-12-09 15:19:02,894 INFO L500 AbstractCegarLoop]: Abstraction has has 789 places, 4355 transitions, 82015 flow [2023-12-09 15:19:02,894 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:02,894 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:19:02,895 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] [2023-12-09 15:19:02,895 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 15:19:02,895 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:19:02,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:19:02,895 INFO L85 PathProgramCache]: Analyzing trace with hash 970409263, now seen corresponding path program 10 times [2023-12-09 15:19:02,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:19:02,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514779282] [2023-12-09 15:19:02,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:19:02,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:19:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:19:03,260 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 15:19:03,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:19:03,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514779282] [2023-12-09 15:19:03,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514779282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:19:03,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:19:03,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:19:03,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705600079] [2023-12-09 15:19:03,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:19:03,261 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:19:03,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:19:03,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:19:03,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:19:03,263 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 405 [2023-12-09 15:19:03,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 789 places, 4355 transitions, 82015 flow. Second operand has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:03,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:19:03,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 405 [2023-12-09 15:19:03,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:19:17,591 INFO L124 PetriNetUnfolderBase]: 14834/42694 cut-off events. [2023-12-09 15:19:17,591 INFO L125 PetriNetUnfolderBase]: For 264898/274799 co-relation queries the response was YES. [2023-12-09 15:19:17,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296539 conditions, 42694 events. 14834/42694 cut-off events. For 264898/274799 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 458128 event pairs, 1592 based on Foata normal form. 402/40357 useless extension candidates. Maximal degree in co-relation 289289. Up to 17030 conditions per place. [2023-12-09 15:19:18,004 INFO L140 encePairwiseOnDemand]: 357/405 looper letters, 2986 selfloop transitions, 764 changer transitions 304/4363 dead transitions. [2023-12-09 15:19:18,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 834 places, 4363 transitions, 90289 flow [2023-12-09 15:19:18,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-12-09 15:19:18,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2023-12-09 15:19:18,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 11705 transitions. [2023-12-09 15:19:18,028 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6282877079978529 [2023-12-09 15:19:18,028 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 11705 transitions. [2023-12-09 15:19:18,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 11705 transitions. [2023-12-09 15:19:18,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:19:18,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 11705 transitions. [2023-12-09 15:19:18,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 254.45652173913044) internal successors, (11705), 46 states have internal predecessors, (11705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:18,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 405.0) internal successors, (19035), 47 states have internal predecessors, (19035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:18,063 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 405.0) internal successors, (19035), 47 states have internal predecessors, (19035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:18,064 INFO L308 CegarLoopForPetriNet]: 373 programPoint places, 461 predicate places. [2023-12-09 15:19:18,064 INFO L500 AbstractCegarLoop]: Abstraction has has 834 places, 4363 transitions, 90289 flow [2023-12-09 15:19:18,065 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:18,065 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:19:18,065 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] [2023-12-09 15:19:18,065 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-09 15:19:18,080 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:19:18,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:19:18,080 INFO L85 PathProgramCache]: Analyzing trace with hash -331243255, now seen corresponding path program 11 times [2023-12-09 15:19:18,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:19:18,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417995132] [2023-12-09 15:19:18,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:19:18,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:19:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:19:18,496 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 15:19:18,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:19:18,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417995132] [2023-12-09 15:19:18,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417995132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:19:18,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:19:18,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:19:18,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603362533] [2023-12-09 15:19:18,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:19:18,497 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:19:18,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:19:18,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:19:18,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:19:18,499 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 405 [2023-12-09 15:19:18,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 834 places, 4363 transitions, 90289 flow. Second operand has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:18,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:19:18,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 405 [2023-12-09 15:19:18,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:19:35,125 INFO L124 PetriNetUnfolderBase]: 14850/42416 cut-off events. [2023-12-09 15:19:35,125 INFO L125 PetriNetUnfolderBase]: For 322729/334558 co-relation queries the response was YES. [2023-12-09 15:19:35,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321782 conditions, 42416 events. 14850/42416 cut-off events. For 322729/334558 co-relation queries the response was YES. Maximal size of possible extension queue 487. Compared 454796 event pairs, 1329 based on Foata normal form. 381/40115 useless extension candidates. Maximal degree in co-relation 315893. Up to 17077 conditions per place. [2023-12-09 15:19:35,643 INFO L140 encePairwiseOnDemand]: 357/405 looper letters, 2986 selfloop transitions, 757 changer transitions 338/4390 dead transitions. [2023-12-09 15:19:35,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 878 places, 4390 transitions, 99069 flow [2023-12-09 15:19:35,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-09 15:19:35,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-12-09 15:19:35,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 11495 transitions. [2023-12-09 15:19:35,649 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6307270233196159 [2023-12-09 15:19:35,649 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 11495 transitions. [2023-12-09 15:19:35,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 11495 transitions. [2023-12-09 15:19:35,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:19:35,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 11495 transitions. [2023-12-09 15:19:35,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 255.44444444444446) internal successors, (11495), 45 states have internal predecessors, (11495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:35,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 405.0) internal successors, (18630), 46 states have internal predecessors, (18630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:35,669 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 405.0) internal successors, (18630), 46 states have internal predecessors, (18630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:35,670 INFO L308 CegarLoopForPetriNet]: 373 programPoint places, 505 predicate places. [2023-12-09 15:19:35,670 INFO L500 AbstractCegarLoop]: Abstraction has has 878 places, 4390 transitions, 99069 flow [2023-12-09 15:19:35,670 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:35,670 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:19:35,670 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] [2023-12-09 15:19:35,671 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-09 15:19:35,671 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:19:35,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:19:35,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1662642257, now seen corresponding path program 12 times [2023-12-09 15:19:35,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:19:35,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741879797] [2023-12-09 15:19:35,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:19:35,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:19:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:19:35,979 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 15:19:35,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:19:35,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741879797] [2023-12-09 15:19:35,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741879797] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:19:35,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:19:35,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:19:35,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18174658] [2023-12-09 15:19:35,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:19:35,980 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:19:35,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:19:35,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:19:35,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:19:35,982 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 405 [2023-12-09 15:19:35,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 878 places, 4390 transitions, 99069 flow. Second operand has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:35,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:19:35,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 405 [2023-12-09 15:19:35,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:19:53,199 INFO L124 PetriNetUnfolderBase]: 14861/42497 cut-off events. [2023-12-09 15:19:53,199 INFO L125 PetriNetUnfolderBase]: For 388918/401967 co-relation queries the response was YES. [2023-12-09 15:19:53,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347278 conditions, 42497 events. 14861/42497 cut-off events. For 388918/401967 co-relation queries the response was YES. Maximal size of possible extension queue 487. Compared 455988 event pairs, 1338 based on Foata normal form. 389/40202 useless extension candidates. Maximal degree in co-relation 340889. Up to 17111 conditions per place. [2023-12-09 15:19:53,624 INFO L140 encePairwiseOnDemand]: 357/405 looper letters, 2969 selfloop transitions, 799 changer transitions 364/4441 dead transitions. [2023-12-09 15:19:53,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 932 places, 4441 transitions, 108575 flow [2023-12-09 15:19:53,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-12-09 15:19:53,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2023-12-09 15:19:53,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 13955 transitions. [2023-12-09 15:19:53,658 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6264870931537598 [2023-12-09 15:19:53,659 INFO L72 ComplementDD]: Start complementDD. Operand 55 states and 13955 transitions. [2023-12-09 15:19:53,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 13955 transitions. [2023-12-09 15:19:53,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:19:53,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 55 states and 13955 transitions. [2023-12-09 15:19:53,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 56 states, 55 states have (on average 253.72727272727272) internal successors, (13955), 55 states have internal predecessors, (13955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:53,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 56 states, 56 states have (on average 405.0) internal successors, (22680), 56 states have internal predecessors, (22680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:53,699 INFO L81 ComplementDD]: Finished complementDD. Result has 56 states, 56 states have (on average 405.0) internal successors, (22680), 56 states have internal predecessors, (22680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:53,705 INFO L308 CegarLoopForPetriNet]: 373 programPoint places, 559 predicate places. [2023-12-09 15:19:53,706 INFO L500 AbstractCegarLoop]: Abstraction has has 932 places, 4441 transitions, 108575 flow [2023-12-09 15:19:53,706 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:53,706 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:19:53,706 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] [2023-12-09 15:19:53,707 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-09 15:19:53,707 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:19:53,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:19:53,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1028677027, now seen corresponding path program 13 times [2023-12-09 15:19:53,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:19:53,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772285981] [2023-12-09 15:19:53,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:19:53,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:19:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:19:54,219 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 15:19:54,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:19:54,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772285981] [2023-12-09 15:19:54,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772285981] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:19:54,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:19:54,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:19:54,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53055142] [2023-12-09 15:19:54,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:19:54,220 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:19:54,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:19:54,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:19:54,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:19:54,222 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 405 [2023-12-09 15:19:54,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 932 places, 4441 transitions, 108575 flow. Second operand has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:19:54,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:19:54,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 405 [2023-12-09 15:19:54,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:20:11,225 INFO L124 PetriNetUnfolderBase]: 14871/43009 cut-off events. [2023-12-09 15:20:11,225 INFO L125 PetriNetUnfolderBase]: For 468924/482883 co-relation queries the response was YES. [2023-12-09 15:20:11,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373141 conditions, 43009 events. 14871/43009 cut-off events. For 468924/482883 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 463436 event pairs, 1596 based on Foata normal form. 398/40652 useless extension candidates. Maximal degree in co-relation 363105. Up to 17134 conditions per place. [2023-12-09 15:20:11,882 INFO L140 encePairwiseOnDemand]: 357/405 looper letters, 2960 selfloop transitions, 784 changer transitions 410/4463 dead transitions. [2023-12-09 15:20:11,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 984 places, 4463 transitions, 117464 flow [2023-12-09 15:20:11,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-12-09 15:20:11,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2023-12-09 15:20:11,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 13458 transitions. [2023-12-09 15:20:11,888 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6269741439552761 [2023-12-09 15:20:11,888 INFO L72 ComplementDD]: Start complementDD. Operand 53 states and 13458 transitions. [2023-12-09 15:20:11,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 13458 transitions. [2023-12-09 15:20:11,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:20:11,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 53 states and 13458 transitions. [2023-12-09 15:20:11,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 54 states, 53 states have (on average 253.9245283018868) internal successors, (13458), 53 states have internal predecessors, (13458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:11,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 54 states, 54 states have (on average 405.0) internal successors, (21870), 54 states have internal predecessors, (21870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:11,911 INFO L81 ComplementDD]: Finished complementDD. Result has 54 states, 54 states have (on average 405.0) internal successors, (21870), 54 states have internal predecessors, (21870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:11,911 INFO L308 CegarLoopForPetriNet]: 373 programPoint places, 611 predicate places. [2023-12-09 15:20:11,911 INFO L500 AbstractCegarLoop]: Abstraction has has 984 places, 4463 transitions, 117464 flow [2023-12-09 15:20:11,912 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:11,912 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:20:11,912 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] [2023-12-09 15:20:11,912 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-09 15:20:11,912 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:20:11,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:20:11,913 INFO L85 PathProgramCache]: Analyzing trace with hash -16328401, now seen corresponding path program 14 times [2023-12-09 15:20:11,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:20:11,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771996483] [2023-12-09 15:20:11,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:20:11,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:20:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:20:12,257 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 15:20:12,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:20:12,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771996483] [2023-12-09 15:20:12,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771996483] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:20:12,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:20:12,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:20:12,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016265902] [2023-12-09 15:20:12,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:20:12,258 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:20:12,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:20:12,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:20:12,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:20:12,260 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 405 [2023-12-09 15:20:12,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 984 places, 4463 transitions, 117464 flow. Second operand has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:12,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:20:12,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 405 [2023-12-09 15:20:12,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:20:31,033 INFO L124 PetriNetUnfolderBase]: 14870/42906 cut-off events. [2023-12-09 15:20:31,033 INFO L125 PetriNetUnfolderBase]: For 545576/560791 co-relation queries the response was YES. [2023-12-09 15:20:31,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398232 conditions, 42906 events. 14870/42906 cut-off events. For 545576/560791 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 461590 event pairs, 1606 based on Foata normal form. 398/40564 useless extension candidates. Maximal degree in co-relation 387466. Up to 17145 conditions per place. [2023-12-09 15:20:31,669 INFO L140 encePairwiseOnDemand]: 357/405 looper letters, 2948 selfloop transitions, 762 changer transitions 456/4475 dead transitions. [2023-12-09 15:20:31,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1035 places, 4475 transitions, 126138 flow [2023-12-09 15:20:31,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-12-09 15:20:31,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2023-12-09 15:20:31,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 13223 transitions. [2023-12-09 15:20:31,675 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6278727445394112 [2023-12-09 15:20:31,675 INFO L72 ComplementDD]: Start complementDD. Operand 52 states and 13223 transitions. [2023-12-09 15:20:31,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 13223 transitions. [2023-12-09 15:20:31,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:20:31,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 52 states and 13223 transitions. [2023-12-09 15:20:31,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 53 states, 52 states have (on average 254.28846153846155) internal successors, (13223), 52 states have internal predecessors, (13223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:31,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 53 states, 53 states have (on average 405.0) internal successors, (21465), 53 states have internal predecessors, (21465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:31,698 INFO L81 ComplementDD]: Finished complementDD. Result has 53 states, 53 states have (on average 405.0) internal successors, (21465), 53 states have internal predecessors, (21465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:31,700 INFO L308 CegarLoopForPetriNet]: 373 programPoint places, 662 predicate places. [2023-12-09 15:20:31,700 INFO L500 AbstractCegarLoop]: Abstraction has has 1035 places, 4475 transitions, 126138 flow [2023-12-09 15:20:31,701 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:31,701 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:20:31,701 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] [2023-12-09 15:20:31,701 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-09 15:20:31,701 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:20:31,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:20:31,702 INFO L85 PathProgramCache]: Analyzing trace with hash -294985199, now seen corresponding path program 15 times [2023-12-09 15:20:31,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:20:31,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629674221] [2023-12-09 15:20:31,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:20:31,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:20:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:20:32,133 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 15:20:32,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:20:32,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629674221] [2023-12-09 15:20:32,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629674221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:20:32,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:20:32,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:20:32,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999088628] [2023-12-09 15:20:32,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:20:32,135 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:20:32,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:20:32,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:20:32,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:20:32,137 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 405 [2023-12-09 15:20:32,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1035 places, 4475 transitions, 126138 flow. Second operand has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:32,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:20:32,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 405 [2023-12-09 15:20:32,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:20:52,740 INFO L124 PetriNetUnfolderBase]: 15344/44053 cut-off events. [2023-12-09 15:20:52,740 INFO L125 PetriNetUnfolderBase]: For 653964/670549 co-relation queries the response was YES. [2023-12-09 15:20:52,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434982 conditions, 44053 events. 15344/44053 cut-off events. For 653964/670549 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 475082 event pairs, 1694 based on Foata normal form. 414/41681 useless extension candidates. Maximal degree in co-relation 423178. Up to 17698 conditions per place. [2023-12-09 15:20:53,277 INFO L140 encePairwiseOnDemand]: 357/405 looper letters, 2925 selfloop transitions, 887 changer transitions 664/4785 dead transitions. [2023-12-09 15:20:53,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1107 places, 4785 transitions, 144405 flow [2023-12-09 15:20:53,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-12-09 15:20:53,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2023-12-09 15:20:53,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 18463 transitions. [2023-12-09 15:20:53,286 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6244884153559953 [2023-12-09 15:20:53,286 INFO L72 ComplementDD]: Start complementDD. Operand 73 states and 18463 transitions. [2023-12-09 15:20:53,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 18463 transitions. [2023-12-09 15:20:53,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:20:53,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 73 states and 18463 transitions. [2023-12-09 15:20:53,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 74 states, 73 states have (on average 252.91780821917808) internal successors, (18463), 73 states have internal predecessors, (18463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:53,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 74 states, 74 states have (on average 405.0) internal successors, (29970), 74 states have internal predecessors, (29970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:53,320 INFO L81 ComplementDD]: Finished complementDD. Result has 74 states, 74 states have (on average 405.0) internal successors, (29970), 74 states have internal predecessors, (29970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:53,320 INFO L308 CegarLoopForPetriNet]: 373 programPoint places, 734 predicate places. [2023-12-09 15:20:53,320 INFO L500 AbstractCegarLoop]: Abstraction has has 1107 places, 4785 transitions, 144405 flow [2023-12-09 15:20:53,321 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:53,321 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:20:53,321 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] [2023-12-09 15:20:53,321 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-09 15:20:53,321 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:20:53,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:20:53,322 INFO L85 PathProgramCache]: Analyzing trace with hash 868493935, now seen corresponding path program 16 times [2023-12-09 15:20:53,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:20:53,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566322967] [2023-12-09 15:20:53,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:20:53,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:20:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:20:53,785 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 15:20:53,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:20:53,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566322967] [2023-12-09 15:20:53,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566322967] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:20:53,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:20:53,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:20:53,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051996678] [2023-12-09 15:20:53,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:20:53,786 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:20:53,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:20:53,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:20:53,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:20:53,789 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 405 [2023-12-09 15:20:53,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1107 places, 4785 transitions, 144405 flow. Second operand has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:53,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:20:53,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 405 [2023-12-09 15:20:53,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:21:14,432 INFO L124 PetriNetUnfolderBase]: 15339/43656 cut-off events. [2023-12-09 15:21:14,432 INFO L125 PetriNetUnfolderBase]: For 737725/756046 co-relation queries the response was YES. [2023-12-09 15:21:14,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460223 conditions, 43656 events. 15339/43656 cut-off events. For 737725/756046 co-relation queries the response was YES. Maximal size of possible extension queue 502. Compared 469742 event pairs, 1446 based on Foata normal form. 363/41287 useless extension candidates. Maximal degree in co-relation 451925. Up to 17695 conditions per place. [2023-12-09 15:21:15,001 INFO L140 encePairwiseOnDemand]: 357/405 looper letters, 3065 selfloop transitions, 716 changer transitions 699/4789 dead transitions. [2023-12-09 15:21:15,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1138 places, 4789 transitions, 153496 flow [2023-12-09 15:21:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-09 15:21:15,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-12-09 15:21:15,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 8277 transitions. [2023-12-09 15:21:15,005 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6386574074074074 [2023-12-09 15:21:15,005 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 8277 transitions. [2023-12-09 15:21:15,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 8277 transitions. [2023-12-09 15:21:15,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:21:15,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 8277 transitions. [2023-12-09 15:21:15,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 258.65625) internal successors, (8277), 32 states have internal predecessors, (8277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:15,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 405.0) internal successors, (13365), 33 states have internal predecessors, (13365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:15,019 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 405.0) internal successors, (13365), 33 states have internal predecessors, (13365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:15,020 INFO L308 CegarLoopForPetriNet]: 373 programPoint places, 765 predicate places. [2023-12-09 15:21:15,020 INFO L500 AbstractCegarLoop]: Abstraction has has 1138 places, 4789 transitions, 153496 flow [2023-12-09 15:21:15,020 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:15,020 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:21:15,020 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] [2023-12-09 15:21:15,021 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-09 15:21:15,021 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:21:15,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:21:15,021 INFO L85 PathProgramCache]: Analyzing trace with hash -660641701, now seen corresponding path program 17 times [2023-12-09 15:21:15,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:21:15,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571229769] [2023-12-09 15:21:15,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:21:15,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:21:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:21:15,325 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 15:21:15,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:21:15,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571229769] [2023-12-09 15:21:15,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571229769] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:21:15,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:21:15,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:21:15,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713335061] [2023-12-09 15:21:15,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:21:15,326 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:21:15,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:21:15,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:21:15,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:21:15,328 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 405 [2023-12-09 15:21:15,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1138 places, 4789 transitions, 153496 flow. Second operand has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:15,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:21:15,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 405 [2023-12-09 15:21:15,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:21:38,175 INFO L124 PetriNetUnfolderBase]: 15752/45482 cut-off events. [2023-12-09 15:21:38,175 INFO L125 PetriNetUnfolderBase]: For 882410/902957 co-relation queries the response was YES. [2023-12-09 15:21:38,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500892 conditions, 45482 events. 15752/45482 cut-off events. For 882410/902957 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 494546 event pairs, 1758 based on Foata normal form. 457/43053 useless extension candidates. Maximal degree in co-relation 486151. Up to 18142 conditions per place. [2023-12-09 15:21:38,892 INFO L140 encePairwiseOnDemand]: 357/405 looper letters, 3236 selfloop transitions, 824 changer transitions 729/5098 dead transitions. [2023-12-09 15:21:38,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1173 places, 5098 transitions, 173610 flow [2023-12-09 15:21:38,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-09 15:21:38,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-12-09 15:21:38,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 9316 transitions. [2023-12-09 15:21:38,896 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.638957475994513 [2023-12-09 15:21:38,897 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 9316 transitions. [2023-12-09 15:21:38,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 9316 transitions. [2023-12-09 15:21:38,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:21:38,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 9316 transitions. [2023-12-09 15:21:38,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 258.77777777777777) internal successors, (9316), 36 states have internal predecessors, (9316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:38,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 405.0) internal successors, (14985), 37 states have internal predecessors, (14985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:38,911 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 405.0) internal successors, (14985), 37 states have internal predecessors, (14985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:38,912 INFO L308 CegarLoopForPetriNet]: 373 programPoint places, 800 predicate places. [2023-12-09 15:21:38,912 INFO L500 AbstractCegarLoop]: Abstraction has has 1173 places, 5098 transitions, 173610 flow [2023-12-09 15:21:38,912 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:38,912 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:21:38,912 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] [2023-12-09 15:21:38,913 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-09 15:21:38,913 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:21:38,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:21:38,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1299506403, now seen corresponding path program 18 times [2023-12-09 15:21:38,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:21:38,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622581869] [2023-12-09 15:21:38,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:21:38,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:21:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:21:39,215 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 15:21:39,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:21:39,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622581869] [2023-12-09 15:21:39,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622581869] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:21:39,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:21:39,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:21:39,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624693147] [2023-12-09 15:21:39,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:21:39,216 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:21:39,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:21:39,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:21:39,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:21:39,219 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 405 [2023-12-09 15:21:39,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1173 places, 5098 transitions, 173610 flow. Second operand has 19 states, 19 states have (on average 244.3684210526316) internal successors, (4643), 19 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:39,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:21:39,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 405 [2023-12-09 15:21:39,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-12-09 15:21:47,157 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 15:21:47,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-09 15:21:47,163 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-12-09 15:21:47,163 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-09 15:21:47,163 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (19states, 241/405 universal loopers) in iteration 18,while PetriNetUnfolder was constructing finite prefix that currently has 169021 conditions, 14455 events (4496/14454 cut-off events. For 268984/285908 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 159197 event pairs, 668 based on Foata normal form. 397/14317 useless extension candidates. Maximal degree in co-relation 164071. Up to 2574 conditions per place.). [2023-12-09 15:21:47,164 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-12-09 15:21:47,164 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-12-09 15:21:47,165 INFO L457 BasicCegarLoop]: Path program histogram: [18] [2023-12-09 15:21:47,167 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:21:47,167 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:21:47,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:21:47 BasicIcfg [2023-12-09 15:21:47,170 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:21:47,170 INFO L158 Benchmark]: Toolchain (without parser) took 250125.60ms. Allocated memory was 248.5MB in the beginning and 5.4GB in the end (delta: 5.2GB). Free memory was 188.7MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 3.8GB. Max. memory is 8.0GB. [2023-12-09 15:21:47,170 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 248.5MB. Free memory is still 201.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:21:47,170 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.57ms. Allocated memory is still 248.5MB. Free memory was 188.4MB in the beginning and 176.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-09 15:21:47,171 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.59ms. Allocated memory is still 248.5MB. Free memory was 176.4MB in the beginning and 173.5MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-09 15:21:47,171 INFO L158 Benchmark]: Boogie Preprocessor took 44.09ms. Allocated memory is still 248.5MB. Free memory was 173.5MB in the beginning and 171.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:21:47,171 INFO L158 Benchmark]: RCFGBuilder took 532.34ms. Allocated memory was 248.5MB in the beginning and 308.3MB in the end (delta: 59.8MB). Free memory was 171.4MB in the beginning and 256.5MB in the end (delta: -85.1MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB. [2023-12-09 15:21:47,171 INFO L158 Benchmark]: TraceAbstraction took 249261.11ms. Allocated memory was 308.3MB in the beginning and 5.4GB in the end (delta: 5.1GB). Free memory was 256.0MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 3.8GB. Max. memory is 8.0GB. [2023-12-09 15:21:47,172 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 248.5MB. Free memory is still 201.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 238.57ms. Allocated memory is still 248.5MB. Free memory was 188.4MB in the beginning and 176.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.59ms. Allocated memory is still 248.5MB. Free memory was 176.4MB in the beginning and 173.5MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.09ms. Allocated memory is still 248.5MB. Free memory was 173.5MB in the beginning and 171.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 532.34ms. Allocated memory was 248.5MB in the beginning and 308.3MB in the end (delta: 59.8MB). Free memory was 171.4MB in the beginning and 256.5MB in the end (delta: -85.1MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB. * TraceAbstraction took 249261.11ms. Allocated memory was 308.3MB in the beginning and 5.4GB in the end (delta: 5.1GB). Free memory was 256.0MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 3.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (19states, 241/405 universal loopers) in iteration 18,while PetriNetUnfolder was constructing finite prefix that currently has 169021 conditions, 14455 events (4496/14454 cut-off events. For 268984/285908 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 159197 event pairs, 668 based on Foata normal form. 397/14317 useless extension candidates. Maximal degree in co-relation 164071. Up to 2574 conditions per place.). - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (19states, 241/405 universal loopers) in iteration 18,while PetriNetUnfolder was constructing finite prefix that currently has 169021 conditions, 14455 events (4496/14454 cut-off events. For 268984/285908 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 159197 event pairs, 668 based on Foata normal form. 397/14317 useless extension candidates. Maximal degree in co-relation 164071. Up to 2574 conditions per place.). - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (19states, 241/405 universal loopers) in iteration 18,while PetriNetUnfolder was constructing finite prefix that currently has 169021 conditions, 14455 events (4496/14454 cut-off events. For 268984/285908 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 159197 event pairs, 668 based on Foata normal form. 397/14317 useless extension candidates. Maximal degree in co-relation 164071. Up to 2574 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 622 locations, 3 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: 249.1s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 18, EmptinessCheckTime: 0.0s, AutomataDifference: 240.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13881 SdHoareTripleChecker+Valid, 16.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13881 mSDsluCounter, 63599 SdHoareTripleChecker+Invalid, 13.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58127 mSDsCounter, 351 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40304 IncrementalHoareTripleChecker+Invalid, 40655 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 351 mSolverCounterUnsat, 5472 mSDtfsCounter, 40304 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1070 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1034 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14469 ImplicationChecksByTransitivity, 14.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=173610occurred in iteration=17, InterpolantAutomatonStates: 817, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 3078 NumberOfCodeBlocks, 3078 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3060 ConstructedInterpolants, 0 QuantifiedInterpolants, 11206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown