/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-ticket-5.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:19:59,968 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:20:00,053 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 15:20:00,083 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:20:00,084 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:20:00,084 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:20:00,085 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:20:00,085 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:20:00,086 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:20:00,089 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:20:00,090 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:20:00,090 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:20:00,090 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:20:00,091 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:20:00,092 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:20:00,092 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:20:00,092 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:20:00,092 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:20:00,092 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:20:00,093 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:20:00,093 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:20:00,094 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:20:00,094 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:20:00,094 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:20:00,094 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:20:00,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:20:00,096 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:20:00,096 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:20:00,096 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:20:00,096 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:20:00,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:20:00,097 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:20:00,098 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:20:00,098 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:20:00,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:20:00,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:20:00,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:20:00,368 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:20:00,368 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:20:00,369 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2023-12-09 15:20:01,431 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:20:01,617 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:20:01,617 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2023-12-09 15:20:01,629 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33441622/2a39cffe1ee346dd924e4ce33c1abb46/FLAG48887613c [2023-12-09 15:20:01,646 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33441622/2a39cffe1ee346dd924e4ce33c1abb46 [2023-12-09 15:20:01,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:20:01,650 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:20:01,653 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:20:01,653 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:20:01,657 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:20:01,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:20:01" (1/1) ... [2023-12-09 15:20:01,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2516a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:01, skipping insertion in model container [2023-12-09 15:20:01,660 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:20:01" (1/1) ... [2023-12-09 15:20:01,695 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:20:01,902 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-ticket-5.wvr.c[4028,4041] [2023-12-09 15:20:01,911 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:20:01,926 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:20:01,965 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-ticket-5.wvr.c[4028,4041] [2023-12-09 15:20:01,966 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:20:01,975 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:20:01,975 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:20:01,981 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:20:01,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:01 WrapperNode [2023-12-09 15:20:01,982 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:20:01,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:20:01,983 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:20:01,984 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:20:01,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:01" (1/1) ... [2023-12-09 15:20:02,008 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:01" (1/1) ... [2023-12-09 15:20:02,046 INFO L138 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 251 [2023-12-09 15:20:02,047 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:20:02,047 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:20:02,047 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:20:02,047 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:20:02,055 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:01" (1/1) ... [2023-12-09 15:20:02,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:01" (1/1) ... [2023-12-09 15:20:02,067 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:01" (1/1) ... [2023-12-09 15:20:02,067 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:01" (1/1) ... [2023-12-09 15:20:02,078 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:01" (1/1) ... [2023-12-09 15:20:02,080 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:01" (1/1) ... [2023-12-09 15:20:02,081 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:01" (1/1) ... [2023-12-09 15:20:02,082 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:01" (1/1) ... [2023-12-09 15:20:02,085 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:20:02,086 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:20:02,086 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:20:02,086 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:20:02,087 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:01" (1/1) ... [2023-12-09 15:20:02,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:20:02,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:20:02,118 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 15:20:02,144 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 15:20:02,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:20:02,151 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:20:02,151 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:20:02,151 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:20:02,152 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:20:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-09 15:20:02,152 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-09 15:20:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-12-09 15:20:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-12-09 15:20:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:20:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-12-09 15:20:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-12-09 15:20:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:20:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:20:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 15:20:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 15:20:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:20:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:20:02,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:20:02,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:20:02,157 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 15:20:02,296 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:20:02,298 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:20:02,614 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:20:02,685 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:20:02,685 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 15:20:02,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:20:02 BoogieIcfgContainer [2023-12-09 15:20:02,687 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:20:02,689 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:20:02,689 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:20:02,691 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:20:02,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:20:01" (1/3) ... [2023-12-09 15:20:02,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da8389d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:20:02, skipping insertion in model container [2023-12-09 15:20:02,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:01" (2/3) ... [2023-12-09 15:20:02,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da8389d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:20:02, skipping insertion in model container [2023-12-09 15:20:02,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:20:02" (3/3) ... [2023-12-09 15:20:02,694 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2023-12-09 15:20:02,708 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:20:02,709 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:20:02,709 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:20:02,778 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-12-09 15:20:02,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 189 places, 175 transitions, 385 flow [2023-12-09 15:20:02,885 INFO L124 PetriNetUnfolderBase]: 2/170 cut-off events. [2023-12-09 15:20:02,885 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-12-09 15:20:02,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 170 events. 2/170 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 78 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 129. Up to 2 conditions per place. [2023-12-09 15:20:02,895 INFO L82 GeneralOperation]: Start removeDead. Operand has 189 places, 175 transitions, 385 flow [2023-12-09 15:20:02,899 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 155 transitions, 340 flow [2023-12-09 15:20:02,908 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:20:02,914 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;@a531ab1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:20:02,914 INFO L363 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-12-09 15:20:02,960 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:20:02,960 INFO L124 PetriNetUnfolderBase]: 2/154 cut-off events. [2023-12-09 15:20:02,960 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-12-09 15:20:02,961 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:20:02,961 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] [2023-12-09 15:20:02,962 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-12-09 15:20:02,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:20:02,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1735115192, now seen corresponding path program 1 times [2023-12-09 15:20:02,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:20:02,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133852201] [2023-12-09 15:20:02,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:20:02,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:20:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:20:04,960 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 15:20:04,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:20:04,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133852201] [2023-12-09 15:20:04,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133852201] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:20:04,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:20:04,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:20:04,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204857732] [2023-12-09 15:20:04,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:20:04,973 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:20:04,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:20:05,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:20:05,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:20:05,013 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 175 [2023-12-09 15:20:05,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 155 transitions, 340 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:05,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:20:05,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 175 [2023-12-09 15:20:05,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:20:10,308 INFO L124 PetriNetUnfolderBase]: 24026/38574 cut-off events. [2023-12-09 15:20:10,308 INFO L125 PetriNetUnfolderBase]: For 5728/5728 co-relation queries the response was YES. [2023-12-09 15:20:10,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74827 conditions, 38574 events. 24026/38574 cut-off events. For 5728/5728 co-relation queries the response was YES. Maximal size of possible extension queue 1565. Compared 315987 event pairs, 12466 based on Foata normal form. 3/38201 useless extension candidates. Maximal degree in co-relation 59664. Up to 12761 conditions per place. [2023-12-09 15:20:10,706 INFO L140 encePairwiseOnDemand]: 157/175 looper letters, 89 selfloop transitions, 15 changer transitions 32/240 dead transitions. [2023-12-09 15:20:10,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 240 transitions, 836 flow [2023-12-09 15:20:10,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-09 15:20:10,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-12-09 15:20:10,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1616 transitions. [2023-12-09 15:20:10,862 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7695238095238095 [2023-12-09 15:20:10,862 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1616 transitions. [2023-12-09 15:20:10,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1616 transitions. [2023-12-09 15:20:10,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:20:10,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1616 transitions. [2023-12-09 15:20:10,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 134.66666666666666) internal successors, (1616), 12 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:10,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 175.0) internal successors, (2275), 13 states have internal predecessors, (2275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:10,891 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 175.0) internal successors, (2275), 13 states have internal predecessors, (2275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:10,895 INFO L308 CegarLoopForPetriNet]: 169 programPoint places, 11 predicate places. [2023-12-09 15:20:10,895 INFO L500 AbstractCegarLoop]: Abstraction has has 180 places, 240 transitions, 836 flow [2023-12-09 15:20:10,896 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:10,897 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:20:10,897 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] [2023-12-09 15:20:10,897 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:20:10,897 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-12-09 15:20:10,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:20:10,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1681820222, now seen corresponding path program 2 times [2023-12-09 15:20:10,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:20:10,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081312627] [2023-12-09 15:20:10,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:20:10,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:20:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:20:11,267 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 15:20:11,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:20:11,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081312627] [2023-12-09 15:20:11,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081312627] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:20:11,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:20:11,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:20:11,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401818825] [2023-12-09 15:20:11,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:20:11,270 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:20:11,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:20:11,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:20:11,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:20:11,273 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 175 [2023-12-09 15:20:11,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 240 transitions, 836 flow. Second operand has 8 states, 8 states have (on average 132.375) internal successors, (1059), 8 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:11,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:20:11,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 175 [2023-12-09 15:20:11,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:20:18,373 INFO L124 PetriNetUnfolderBase]: 47463/76718 cut-off events. [2023-12-09 15:20:18,374 INFO L125 PetriNetUnfolderBase]: For 42199/45445 co-relation queries the response was YES. [2023-12-09 15:20:18,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199899 conditions, 76718 events. 47463/76718 cut-off events. For 42199/45445 co-relation queries the response was YES. Maximal size of possible extension queue 3506. Compared 700381 event pairs, 8120 based on Foata normal form. 1472/77725 useless extension candidates. Maximal degree in co-relation 188757. Up to 27006 conditions per place. [2023-12-09 15:20:19,239 INFO L140 encePairwiseOnDemand]: 160/175 looper letters, 215 selfloop transitions, 92 changer transitions 117/545 dead transitions. [2023-12-09 15:20:19,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 545 transitions, 3119 flow [2023-12-09 15:20:19,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:20:19,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:20:19,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1278 transitions. [2023-12-09 15:20:19,243 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8114285714285714 [2023-12-09 15:20:19,243 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1278 transitions. [2023-12-09 15:20:19,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1278 transitions. [2023-12-09 15:20:19,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:20:19,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1278 transitions. [2023-12-09 15:20:19,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 142.0) internal successors, (1278), 9 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:19,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:19,252 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:19,253 INFO L308 CegarLoopForPetriNet]: 169 programPoint places, 19 predicate places. [2023-12-09 15:20:19,253 INFO L500 AbstractCegarLoop]: Abstraction has has 188 places, 545 transitions, 3119 flow [2023-12-09 15:20:19,255 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 132.375) internal successors, (1059), 8 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:19,255 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:20:19,255 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] [2023-12-09 15:20:19,255 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:20:19,256 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-12-09 15:20:19,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:20:19,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1382921852, now seen corresponding path program 3 times [2023-12-09 15:20:19,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:20:19,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452177342] [2023-12-09 15:20:19,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:20:19,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:20:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:20:19,597 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 15:20:19,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:20:19,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452177342] [2023-12-09 15:20:19,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452177342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:20:19,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:20:19,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:20:19,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135969950] [2023-12-09 15:20:19,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:20:19,604 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:20:19,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:20:19,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:20:19,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:20:19,611 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 175 [2023-12-09 15:20:19,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 545 transitions, 3119 flow. Second operand has 8 states, 8 states have (on average 132.375) internal successors, (1059), 8 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:19,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:20:19,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 175 [2023-12-09 15:20:19,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:20:27,941 INFO L124 PetriNetUnfolderBase]: 50167/80410 cut-off events. [2023-12-09 15:20:27,941 INFO L125 PetriNetUnfolderBase]: For 98962/115199 co-relation queries the response was YES. [2023-12-09 15:20:28,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262190 conditions, 80410 events. 50167/80410 cut-off events. For 98962/115199 co-relation queries the response was YES. Maximal size of possible extension queue 3746. Compared 730498 event pairs, 8741 based on Foata normal form. 1839/81634 useless extension candidates. Maximal degree in co-relation 193498. Up to 28634 conditions per place. [2023-12-09 15:20:28,746 INFO L140 encePairwiseOnDemand]: 160/175 looper letters, 262 selfloop transitions, 113 changer transitions 137/633 dead transitions. [2023-12-09 15:20:28,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 633 transitions, 4679 flow [2023-12-09 15:20:28,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:20:28,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:20:28,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1276 transitions. [2023-12-09 15:20:28,750 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8101587301587302 [2023-12-09 15:20:28,750 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1276 transitions. [2023-12-09 15:20:28,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1276 transitions. [2023-12-09 15:20:28,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:20:28,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1276 transitions. [2023-12-09 15:20:28,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 141.77777777777777) internal successors, (1276), 9 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:28,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:28,757 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:28,757 INFO L308 CegarLoopForPetriNet]: 169 programPoint places, 27 predicate places. [2023-12-09 15:20:28,757 INFO L500 AbstractCegarLoop]: Abstraction has has 196 places, 633 transitions, 4679 flow [2023-12-09 15:20:28,758 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 132.375) internal successors, (1059), 8 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:28,758 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:20:28,758 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] [2023-12-09 15:20:28,758 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:20:28,759 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-12-09 15:20:28,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:20:28,759 INFO L85 PathProgramCache]: Analyzing trace with hash 968177628, now seen corresponding path program 4 times [2023-12-09 15:20:28,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:20:28,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787209358] [2023-12-09 15:20:28,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:20:28,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:20:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:20:28,971 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 15:20:28,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:20:28,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787209358] [2023-12-09 15:20:28,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787209358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:20:28,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:20:28,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:20:28,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274460984] [2023-12-09 15:20:28,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:20:28,977 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:20:28,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:20:28,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:20:28,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:20:28,978 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 175 [2023-12-09 15:20:28,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 633 transitions, 4679 flow. Second operand has 8 states, 8 states have (on average 132.375) internal successors, (1059), 8 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:28,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:20:28,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 175 [2023-12-09 15:20:28,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:20:37,517 INFO L124 PetriNetUnfolderBase]: 50687/80786 cut-off events. [2023-12-09 15:20:37,518 INFO L125 PetriNetUnfolderBase]: For 185833/209307 co-relation queries the response was YES. [2023-12-09 15:20:37,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319528 conditions, 80786 events. 50687/80786 cut-off events. For 185833/209307 co-relation queries the response was YES. Maximal size of possible extension queue 3872. Compared 730926 event pairs, 9784 based on Foata normal form. 2144/82261 useless extension candidates. Maximal degree in co-relation 302892. Up to 29480 conditions per place. [2023-12-09 15:20:38,309 INFO L140 encePairwiseOnDemand]: 160/175 looper letters, 343 selfloop transitions, 149 changer transitions 170/783 dead transitions. [2023-12-09 15:20:38,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 783 transitions, 7253 flow [2023-12-09 15:20:38,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:20:38,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:20:38,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1277 transitions. [2023-12-09 15:20:38,315 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8107936507936508 [2023-12-09 15:20:38,315 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1277 transitions. [2023-12-09 15:20:38,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1277 transitions. [2023-12-09 15:20:38,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:20:38,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1277 transitions. [2023-12-09 15:20:38,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 141.88888888888889) internal successors, (1277), 9 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:38,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:38,321 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:38,322 INFO L308 CegarLoopForPetriNet]: 169 programPoint places, 35 predicate places. [2023-12-09 15:20:38,322 INFO L500 AbstractCegarLoop]: Abstraction has has 204 places, 783 transitions, 7253 flow [2023-12-09 15:20:38,322 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 132.375) internal successors, (1059), 8 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:38,323 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:20:38,323 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] [2023-12-09 15:20:38,323 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:20:38,323 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-12-09 15:20:38,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:20:38,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1836055020, now seen corresponding path program 5 times [2023-12-09 15:20:38,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:20:38,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775237891] [2023-12-09 15:20:38,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:20:38,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:20:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:20:38,532 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 15:20:38,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:20:38,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775237891] [2023-12-09 15:20:38,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775237891] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:20:38,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:20:38,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:20:38,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849420236] [2023-12-09 15:20:38,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:20:38,534 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:20:38,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:20:38,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:20:38,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:20:38,535 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 175 [2023-12-09 15:20:38,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 783 transitions, 7253 flow. Second operand has 8 states, 8 states have (on average 132.375) internal successors, (1059), 8 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:38,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:20:38,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 175 [2023-12-09 15:20:38,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:20:47,844 INFO L124 PetriNetUnfolderBase]: 49532/80061 cut-off events. [2023-12-09 15:20:47,844 INFO L125 PetriNetUnfolderBase]: For 292570/333065 co-relation queries the response was YES. [2023-12-09 15:20:48,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369434 conditions, 80061 events. 49532/80061 cut-off events. For 292570/333065 co-relation queries the response was YES. Maximal size of possible extension queue 4079. Compared 739093 event pairs, 10235 based on Foata normal form. 2286/81650 useless extension candidates. Maximal degree in co-relation 265700. Up to 29653 conditions per place. [2023-12-09 15:20:48,740 INFO L140 encePairwiseOnDemand]: 160/175 looper letters, 465 selfloop transitions, 207 changer transitions 218/1011 dead transitions. [2023-12-09 15:20:48,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 1011 transitions, 11417 flow [2023-12-09 15:20:48,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:20:48,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:20:48,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1278 transitions. [2023-12-09 15:20:48,743 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8114285714285714 [2023-12-09 15:20:48,743 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1278 transitions. [2023-12-09 15:20:48,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1278 transitions. [2023-12-09 15:20:48,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:20:48,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1278 transitions. [2023-12-09 15:20:48,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 142.0) internal successors, (1278), 9 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:48,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:48,750 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:48,750 INFO L308 CegarLoopForPetriNet]: 169 programPoint places, 43 predicate places. [2023-12-09 15:20:48,751 INFO L500 AbstractCegarLoop]: Abstraction has has 212 places, 1011 transitions, 11417 flow [2023-12-09 15:20:48,751 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 132.375) internal successors, (1059), 8 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:48,751 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:20:48,751 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] [2023-12-09 15:20:48,751 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:20:48,752 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-12-09 15:20:48,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:20:48,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1929512870, now seen corresponding path program 6 times [2023-12-09 15:20:48,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:20:48,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443931701] [2023-12-09 15:20:48,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:20:48,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:20:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:20:48,993 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 15:20:48,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:20:48,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443931701] [2023-12-09 15:20:48,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443931701] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:20:48,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:20:48,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 15:20:48,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413068219] [2023-12-09 15:20:48,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:20:48,995 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:20:48,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:20:48,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:20:48,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:20:48,996 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 175 [2023-12-09 15:20:48,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 1011 transitions, 11417 flow. Second operand has 7 states, 7 states have (on average 133.14285714285714) internal successors, (932), 7 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:20:48,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:20:48,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 175 [2023-12-09 15:20:48,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:21:06,110 INFO L124 PetriNetUnfolderBase]: 62509/100165 cut-off events. [2023-12-09 15:21:06,110 INFO L125 PetriNetUnfolderBase]: For 502736/564365 co-relation queries the response was YES. [2023-12-09 15:21:06,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542832 conditions, 100165 events. 62509/100165 cut-off events. For 502736/564365 co-relation queries the response was YES. Maximal size of possible extension queue 5937. Compared 955878 event pairs, 11615 based on Foata normal form. 1596/101260 useless extension candidates. Maximal degree in co-relation 368852. Up to 38254 conditions per place. [2023-12-09 15:21:07,334 INFO L140 encePairwiseOnDemand]: 160/175 looper letters, 884 selfloop transitions, 241 changer transitions 409/1655 dead transitions. [2023-12-09 15:21:07,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 1655 transitions, 22590 flow [2023-12-09 15:21:07,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:21:07,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:21:07,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1131 transitions. [2023-12-09 15:21:07,337 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8078571428571428 [2023-12-09 15:21:07,337 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1131 transitions. [2023-12-09 15:21:07,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1131 transitions. [2023-12-09 15:21:07,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:21:07,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1131 transitions. [2023-12-09 15:21:07,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 141.375) internal successors, (1131), 8 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:07,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 175.0) internal successors, (1575), 9 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:07,342 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 175.0) internal successors, (1575), 9 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:07,343 INFO L308 CegarLoopForPetriNet]: 169 programPoint places, 50 predicate places. [2023-12-09 15:21:07,343 INFO L500 AbstractCegarLoop]: Abstraction has has 219 places, 1655 transitions, 22590 flow [2023-12-09 15:21:07,343 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 133.14285714285714) internal successors, (932), 7 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:07,344 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:21:07,344 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] [2023-12-09 15:21:07,344 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:21:07,344 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-12-09 15:21:07,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:21:07,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1825741878, now seen corresponding path program 7 times [2023-12-09 15:21:07,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:21:07,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516858293] [2023-12-09 15:21:07,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:21:07,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:21:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:21:07,586 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 15:21:07,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:21:07,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516858293] [2023-12-09 15:21:07,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516858293] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:21:07,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:21:07,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:21:07,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695810204] [2023-12-09 15:21:07,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:21:07,591 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:21:07,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:21:07,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:21:07,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:21:07,594 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 175 [2023-12-09 15:21:07,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 1655 transitions, 22590 flow. Second operand has 8 states, 8 states have (on average 132.375) internal successors, (1059), 8 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:07,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:21:07,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 175 [2023-12-09 15:21:07,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:21:25,555 INFO L124 PetriNetUnfolderBase]: 62749/100994 cut-off events. [2023-12-09 15:21:25,555 INFO L125 PetriNetUnfolderBase]: For 694251/760773 co-relation queries the response was YES. [2023-12-09 15:21:25,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 618019 conditions, 100994 events. 62749/100994 cut-off events. For 694251/760773 co-relation queries the response was YES. Maximal size of possible extension queue 6157. Compared 975905 event pairs, 12106 based on Foata normal form. 3053/103594 useless extension candidates. Maximal degree in co-relation 610487. Up to 38787 conditions per place. [2023-12-09 15:21:26,792 INFO L140 encePairwiseOnDemand]: 160/175 looper letters, 890 selfloop transitions, 442 changer transitions 499/1952 dead transitions. [2023-12-09 15:21:26,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 1952 transitions, 30508 flow [2023-12-09 15:21:26,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:21:26,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:21:26,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1277 transitions. [2023-12-09 15:21:26,797 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8107936507936508 [2023-12-09 15:21:26,797 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1277 transitions. [2023-12-09 15:21:26,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1277 transitions. [2023-12-09 15:21:26,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:21:26,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1277 transitions. [2023-12-09 15:21:26,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 141.88888888888889) internal successors, (1277), 9 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:26,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:26,802 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:26,803 INFO L308 CegarLoopForPetriNet]: 169 programPoint places, 58 predicate places. [2023-12-09 15:21:26,803 INFO L500 AbstractCegarLoop]: Abstraction has has 227 places, 1952 transitions, 30508 flow [2023-12-09 15:21:26,803 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 132.375) internal successors, (1059), 8 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:26,804 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:21:26,804 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] [2023-12-09 15:21:26,804 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:21:26,804 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-12-09 15:21:26,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:21:26,804 INFO L85 PathProgramCache]: Analyzing trace with hash 372476310, now seen corresponding path program 8 times [2023-12-09 15:21:26,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:21:26,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018555683] [2023-12-09 15:21:26,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:21:26,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:21:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:21:27,071 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 15:21:27,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:21:27,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018555683] [2023-12-09 15:21:27,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018555683] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:21:27,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:21:27,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:21:27,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746956332] [2023-12-09 15:21:27,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:21:27,073 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:21:27,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:21:27,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:21:27,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:21:27,074 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 175 [2023-12-09 15:21:27,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 1952 transitions, 30508 flow. Second operand has 8 states, 8 states have (on average 132.375) internal successors, (1059), 8 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:27,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:21:27,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 175 [2023-12-09 15:21:27,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:21:51,327 INFO L124 PetriNetUnfolderBase]: 59293/96460 cut-off events. [2023-12-09 15:21:51,328 INFO L125 PetriNetUnfolderBase]: For 882595/971671 co-relation queries the response was YES. [2023-12-09 15:21:51,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 657488 conditions, 96460 events. 59293/96460 cut-off events. For 882595/971671 co-relation queries the response was YES. Maximal size of possible extension queue 6033. Compared 945120 event pairs, 11768 based on Foata normal form. 3426/99406 useless extension candidates. Maximal degree in co-relation 611004. Up to 36898 conditions per place. [2023-12-09 15:21:52,582 INFO L140 encePairwiseOnDemand]: 160/175 looper letters, 1020 selfloop transitions, 515 changer transitions 596/2252 dead transitions. [2023-12-09 15:21:52,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 2252 transitions, 39695 flow [2023-12-09 15:21:52,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:21:52,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:21:52,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1278 transitions. [2023-12-09 15:21:52,586 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8114285714285714 [2023-12-09 15:21:52,586 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1278 transitions. [2023-12-09 15:21:52,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1278 transitions. [2023-12-09 15:21:52,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:21:52,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1278 transitions. [2023-12-09 15:21:52,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 142.0) internal successors, (1278), 9 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:52,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:52,592 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:52,592 INFO L308 CegarLoopForPetriNet]: 169 programPoint places, 66 predicate places. [2023-12-09 15:21:52,592 INFO L500 AbstractCegarLoop]: Abstraction has has 235 places, 2252 transitions, 39695 flow [2023-12-09 15:21:52,593 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 132.375) internal successors, (1059), 8 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:52,593 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:21:52,593 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] [2023-12-09 15:21:52,593 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 15:21:52,594 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-12-09 15:21:52,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:21:52,594 INFO L85 PathProgramCache]: Analyzing trace with hash 493567106, now seen corresponding path program 9 times [2023-12-09 15:21:52,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:21:52,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858129740] [2023-12-09 15:21:52,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:21:52,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:21:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:21:52,829 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 15:21:52,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:21:52,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858129740] [2023-12-09 15:21:52,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858129740] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:21:52,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:21:52,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:21:52,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3419265] [2023-12-09 15:21:52,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:21:52,831 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:21:52,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:21:52,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:21:52,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:21:52,832 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 175 [2023-12-09 15:21:52,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 2252 transitions, 39695 flow. Second operand has 8 states, 8 states have (on average 132.375) internal successors, (1059), 8 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:52,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:21:52,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 175 [2023-12-09 15:21:52,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:22:13,811 INFO L124 PetriNetUnfolderBase]: 53254/88075 cut-off events. [2023-12-09 15:22:13,811 INFO L125 PetriNetUnfolderBase]: For 1029538/1113652 co-relation queries the response was YES. [2023-12-09 15:22:14,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 660315 conditions, 88075 events. 53254/88075 cut-off events. For 1029538/1113652 co-relation queries the response was YES. Maximal size of possible extension queue 5534. Compared 873798 event pairs, 10630 based on Foata normal form. 3145/90726 useless extension candidates. Maximal degree in co-relation 462048. Up to 32272 conditions per place. [2023-12-09 15:22:15,061 INFO L140 encePairwiseOnDemand]: 160/175 looper letters, 1091 selfloop transitions, 569 changer transitions 701/2482 dead transitions. [2023-12-09 15:22:15,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 2482 transitions, 48631 flow [2023-12-09 15:22:15,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:22:15,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:22:15,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1278 transitions. [2023-12-09 15:22:15,064 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8114285714285714 [2023-12-09 15:22:15,064 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1278 transitions. [2023-12-09 15:22:15,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1278 transitions. [2023-12-09 15:22:15,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:22:15,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1278 transitions. [2023-12-09 15:22:15,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 142.0) internal successors, (1278), 9 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:15,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:15,070 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:15,071 INFO L308 CegarLoopForPetriNet]: 169 programPoint places, 74 predicate places. [2023-12-09 15:22:15,071 INFO L500 AbstractCegarLoop]: Abstraction has has 243 places, 2482 transitions, 48631 flow [2023-12-09 15:22:15,071 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 132.375) internal successors, (1059), 8 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:15,071 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:22:15,071 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:22:15,072 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 15:22:15,072 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-12-09 15:22:15,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:22:15,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1717454334, now seen corresponding path program 10 times [2023-12-09 15:22:15,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:22:15,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129330648] [2023-12-09 15:22:15,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:22:15,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:22:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:22:15,928 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 15:22:15,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:22:15,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129330648] [2023-12-09 15:22:15,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129330648] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:22:15,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:22:15,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:22:15,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568091123] [2023-12-09 15:22:15,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:22:15,929 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:22:15,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:22:15,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:22:15,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:22:15,932 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 175 [2023-12-09 15:22:15,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 2482 transitions, 48631 flow. Second operand has 10 states, 10 states have (on average 127.7) internal successors, (1277), 10 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:15,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:22:15,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 175 [2023-12-09 15:22:15,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:22:52,291 INFO L124 PetriNetUnfolderBase]: 66143/110357 cut-off events. [2023-12-09 15:22:52,291 INFO L125 PetriNetUnfolderBase]: For 1316818/1451353 co-relation queries the response was YES. [2023-12-09 15:22:52,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 931669 conditions, 110357 events. 66143/110357 cut-off events. For 1316818/1451353 co-relation queries the response was YES. Maximal size of possible extension queue 7541. Compared 1145583 event pairs, 11508 based on Foata normal form. 359/110146 useless extension candidates. Maximal degree in co-relation 727224. Up to 72867 conditions per place. [2023-12-09 15:22:53,780 INFO L140 encePairwiseOnDemand]: 160/175 looper letters, 1681 selfloop transitions, 13 changer transitions 1598/3396 dead transitions. [2023-12-09 15:22:53,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 3396 transitions, 73935 flow [2023-12-09 15:22:53,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-09 15:22:53,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-12-09 15:22:53,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1592 transitions. [2023-12-09 15:22:53,783 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.758095238095238 [2023-12-09 15:22:53,783 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1592 transitions. [2023-12-09 15:22:53,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1592 transitions. [2023-12-09 15:22:53,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:22:53,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1592 transitions. [2023-12-09 15:22:53,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 132.66666666666666) internal successors, (1592), 12 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:53,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 175.0) internal successors, (2275), 13 states have internal predecessors, (2275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:53,790 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 175.0) internal successors, (2275), 13 states have internal predecessors, (2275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:53,790 INFO L308 CegarLoopForPetriNet]: 169 programPoint places, 85 predicate places. [2023-12-09 15:22:53,790 INFO L500 AbstractCegarLoop]: Abstraction has has 254 places, 3396 transitions, 73935 flow [2023-12-09 15:22:53,791 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 127.7) internal successors, (1277), 10 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:53,791 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:22:53,791 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] [2023-12-09 15:22:53,791 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-09 15:22:53,791 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-12-09 15:22:53,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:22:53,792 INFO L85 PathProgramCache]: Analyzing trace with hash -2009826066, now seen corresponding path program 11 times [2023-12-09 15:22:53,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:22:53,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161752975] [2023-12-09 15:22:53,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:22:53,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:22:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:22:53,951 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 15:22:53,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:22:53,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161752975] [2023-12-09 15:22:53,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161752975] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:22:53,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:22:53,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 15:22:53,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446019201] [2023-12-09 15:22:53,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:22:53,953 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:22:53,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:22:53,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:22:53,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:22:53,954 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 175 [2023-12-09 15:22:53,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 3396 transitions, 73935 flow. Second operand has 7 states, 7 states have (on average 133.14285714285714) internal successors, (932), 7 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:53,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:22:53,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 175 [2023-12-09 15:22:53,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-12-09 15:23:16,747 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 15:23:17,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 15:23:17,027 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2023-12-09 15:23:17,027 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-09 15:23:17,027 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (7states, 127/175 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 552663 conditions, 60711 events (36095/60710 cut-off events. For 1062448/1192523 co-relation queries the response was YES. Maximal size of possible extension queue 5760. Compared 638965 event pairs, 4730 based on Foata normal form. 2611/67882 useless extension candidates. Maximal degree in co-relation 491736. Up to 42845 conditions per place.). [2023-12-09 15:23:17,029 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 6 remaining) [2023-12-09 15:23:17,029 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2023-12-09 15:23:17,029 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-12-09 15:23:17,030 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2023-12-09 15:23:17,030 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2023-12-09 15:23:17,031 INFO L457 BasicCegarLoop]: Path program histogram: [11] [2023-12-09 15:23:17,034 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:23:17,034 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:23:17,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:23:17 BasicIcfg [2023-12-09 15:23:17,039 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:23:17,039 INFO L158 Benchmark]: Toolchain (without parser) took 195388.88ms. Allocated memory was 263.2MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 206.1MB in the beginning and 4.4GB in the end (delta: -4.1GB). Peak memory consumption was 4.2GB. Max. memory is 8.0GB. [2023-12-09 15:23:17,039 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 188.7MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:23:17,040 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.38ms. Allocated memory is still 263.2MB. Free memory was 206.1MB in the beginning and 194.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-09 15:23:17,040 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.38ms. Allocated memory is still 263.2MB. Free memory was 194.0MB in the beginning and 191.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:23:17,040 INFO L158 Benchmark]: Boogie Preprocessor took 37.85ms. Allocated memory is still 263.2MB. Free memory was 191.4MB in the beginning and 189.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:23:17,041 INFO L158 Benchmark]: RCFGBuilder took 601.12ms. Allocated memory is still 263.2MB. Free memory was 189.9MB in the beginning and 161.5MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-09 15:23:17,041 INFO L158 Benchmark]: TraceAbstraction took 194350.04ms. Allocated memory was 263.2MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 161.0MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 4.2GB. Max. memory is 8.0GB. [2023-12-09 15:23:17,042 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 188.7MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 329.38ms. Allocated memory is still 263.2MB. Free memory was 206.1MB in the beginning and 194.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.38ms. Allocated memory is still 263.2MB. Free memory was 194.0MB in the beginning and 191.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.85ms. Allocated memory is still 263.2MB. Free memory was 191.4MB in the beginning and 189.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 601.12ms. Allocated memory is still 263.2MB. Free memory was 189.9MB in the beginning and 161.5MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 194350.04ms. Allocated memory was 263.2MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 161.0MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 4.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 168]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (7states, 127/175 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 552663 conditions, 60711 events (36095/60710 cut-off events. For 1062448/1192523 co-relation queries the response was YES. Maximal size of possible extension queue 5760. Compared 638965 event pairs, 4730 based on Foata normal form. 2611/67882 useless extension candidates. Maximal degree in co-relation 491736. Up to 42845 conditions per place.). - TimeoutResultAtElement [Line: 157]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (7states, 127/175 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 552663 conditions, 60711 events (36095/60710 cut-off events. For 1062448/1192523 co-relation queries the response was YES. Maximal size of possible extension queue 5760. Compared 638965 event pairs, 4730 based on Foata normal form. 2611/67882 useless extension candidates. Maximal degree in co-relation 491736. Up to 42845 conditions per place.). - TimeoutResultAtElement [Line: 160]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (7states, 127/175 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 552663 conditions, 60711 events (36095/60710 cut-off events. For 1062448/1192523 co-relation queries the response was YES. Maximal size of possible extension queue 5760. Compared 638965 event pairs, 4730 based on Foata normal form. 2611/67882 useless extension candidates. Maximal degree in co-relation 491736. Up to 42845 conditions per place.). - TimeoutResultAtElement [Line: 158]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (7states, 127/175 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 552663 conditions, 60711 events (36095/60710 cut-off events. For 1062448/1192523 co-relation queries the response was YES. Maximal size of possible extension queue 5760. Compared 638965 event pairs, 4730 based on Foata normal form. 2611/67882 useless extension candidates. Maximal degree in co-relation 491736. Up to 42845 conditions per place.). - TimeoutResultAtElement [Line: 156]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (7states, 127/175 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 552663 conditions, 60711 events (36095/60710 cut-off events. For 1062448/1192523 co-relation queries the response was YES. Maximal size of possible extension queue 5760. Compared 638965 event pairs, 4730 based on Foata normal form. 2611/67882 useless extension candidates. Maximal degree in co-relation 491736. Up to 42845 conditions per place.). - TimeoutResultAtElement [Line: 159]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (7states, 127/175 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 552663 conditions, 60711 events (36095/60710 cut-off events. For 1062448/1192523 co-relation queries the response was YES. Maximal size of possible extension queue 5760. Compared 638965 event pairs, 4730 based on Foata normal form. 2611/67882 useless extension candidates. Maximal degree in co-relation 491736. Up to 42845 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 220 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 194.2s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 188.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 837 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 837 mSDsluCounter, 686 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 478 mSDsCounter, 243 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3144 IncrementalHoareTripleChecker+Invalid, 3387 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 243 mSolverCounterUnsat, 208 mSDtfsCounter, 3144 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73935occurred in iteration=10, InterpolantAutomatonStates: 95, 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, 0.7s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 1661 NumberOfCodeBlocks, 1661 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1650 ConstructedInterpolants, 0 QuantifiedInterpolants, 4923 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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