/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -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/bench-exp3x3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-29 20:21:20,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 20:21:20,411 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-29 20:21:20,434 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 20:21:20,435 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 20:21:20,435 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 20:21:20,435 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 20:21:20,436 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 20:21:20,436 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 20:21:20,439 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 20:21:20,439 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 20:21:20,439 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 20:21:20,439 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 20:21:20,440 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 20:21:20,440 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 20:21:20,441 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 20:21:20,441 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 20:21:20,441 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 20:21:20,441 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 20:21:20,441 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 20:21:20,441 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 20:21:20,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 20:21:20,442 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 20:21:20,442 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-29 20:21:20,442 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 20:21:20,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 20:21:20,444 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 20:21:20,444 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 20:21:20,444 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 20:21:20,444 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 20:21:20,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 20:21:20,445 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 20:21:20,445 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 20:21:20,445 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-11-29 20:21:20,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 20:21:20,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 20:21:20,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 20:21:20,639 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 20:21:20,643 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 20:21:20,643 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c [2023-11-29 20:21:21,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 20:21:21,753 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 20:21:21,753 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c [2023-11-29 20:21:21,770 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dab1efec6/3d3ad966f31c4c3abd72d4a70b17b037/FLAG5b840f4f7 [2023-11-29 20:21:21,781 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dab1efec6/3d3ad966f31c4c3abd72d4a70b17b037 [2023-11-29 20:21:21,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 20:21:21,783 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-29 20:21:21,784 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 20:21:21,784 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 20:21:21,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 20:21:21,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:21:21" (1/1) ... [2023-11-29 20:21:21,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f1e10bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:21, skipping insertion in model container [2023-11-29 20:21:21,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:21:21" (1/1) ... [2023-11-29 20:21:21,802 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 20:21:21,898 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/bench-exp3x3.wvr.c[2703,2716] [2023-11-29 20:21:21,901 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 20:21:21,907 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 20:21:21,922 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/bench-exp3x3.wvr.c[2703,2716] [2023-11-29 20:21:21,923 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 20:21:21,932 INFO L206 MainTranslator]: Completed translation [2023-11-29 20:21:21,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:21 WrapperNode [2023-11-29 20:21:21,932 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 20:21:21,933 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 20:21:21,933 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 20:21:21,933 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 20:21:21,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:21" (1/1) ... [2023-11-29 20:21:21,949 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:21" (1/1) ... [2023-11-29 20:21:21,962 INFO L138 Inliner]: procedures = 22, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 131 [2023-11-29 20:21:21,963 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 20:21:21,963 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 20:21:21,963 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 20:21:21,963 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 20:21:21,973 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:21" (1/1) ... [2023-11-29 20:21:21,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:21" (1/1) ... [2023-11-29 20:21:21,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:21" (1/1) ... [2023-11-29 20:21:21,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:21" (1/1) ... [2023-11-29 20:21:21,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:21" (1/1) ... [2023-11-29 20:21:21,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:21" (1/1) ... [2023-11-29 20:21:21,983 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:21" (1/1) ... [2023-11-29 20:21:21,984 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:21" (1/1) ... [2023-11-29 20:21:21,985 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 20:21:21,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 20:21:21,986 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 20:21:21,986 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 20:21:21,995 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:21" (1/1) ... [2023-11-29 20:21:21,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 20:21:22,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:21:22,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-29 20:21:22,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-29 20:21:22,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 20:21:22,049 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 20:21:22,049 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 20:21:22,049 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 20:21:22,049 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 20:21:22,050 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-29 20:21:22,050 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-29 20:21:22,050 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-29 20:21:22,050 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-29 20:21:22,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 20:21:22,050 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-29 20:21:22,051 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-29 20:21:22,051 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-29 20:21:22,051 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-29 20:21:22,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 20:21:22,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 20:21:22,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 20:21:22,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 20:21:22,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 20:21:22,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 20:21:22,054 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 20:21:22,162 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 20:21:22,165 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 20:21:22,368 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 20:21:22,377 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 20:21:22,378 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-29 20:21:22,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:21:22 BoogieIcfgContainer [2023-11-29 20:21:22,379 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 20:21:22,380 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 20:21:22,380 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 20:21:22,385 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 20:21:22,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:21:21" (1/3) ... [2023-11-29 20:21:22,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:21:22, skipping insertion in model container [2023-11-29 20:21:22,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:21" (2/3) ... [2023-11-29 20:21:22,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:21:22, skipping insertion in model container [2023-11-29 20:21:22,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:21:22" (3/3) ... [2023-11-29 20:21:22,387 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3.wvr.c [2023-11-29 20:21:22,399 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 20:21:22,399 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 20:21:22,400 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 20:21:22,488 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2023-11-29 20:21:22,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 178 transitions, 398 flow [2023-11-29 20:21:22,579 INFO L124 PetriNetUnfolderBase]: 14/172 cut-off events. [2023-11-29 20:21:22,579 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-29 20:21:22,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 172 events. 14/172 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 80 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 128. Up to 2 conditions per place. [2023-11-29 20:21:22,583 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 178 transitions, 398 flow [2023-11-29 20:21:22,586 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 155 transitions, 346 flow [2023-11-29 20:21:22,592 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 20:21:22,596 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;@eeb34b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 20:21:22,597 INFO L363 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-29 20:21:22,623 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 20:21:22,623 INFO L124 PetriNetUnfolderBase]: 14/154 cut-off events. [2023-11-29 20:21:22,624 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-29 20:21:22,624 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:21:22,624 INFO L232 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] [2023-11-29 20:21:22,625 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 4 more)] === [2023-11-29 20:21:22,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:21:22,628 INFO L85 PathProgramCache]: Analyzing trace with hash -383328040, now seen corresponding path program 1 times [2023-11-29 20:21:22,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:21:22,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428271068] [2023-11-29 20:21:22,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:21:22,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:21:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:21:23,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:21:23,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:21:23,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428271068] [2023-11-29 20:21:23,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428271068] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:21:23,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:21:23,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 20:21:23,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882100628] [2023-11-29 20:21:23,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:21:23,788 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 20:21:23,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:21:23,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 20:21:23,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 20:21:23,817 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 178 [2023-11-29 20:21:23,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 155 transitions, 346 flow. Second operand has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:23,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:21:23,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 178 [2023-11-29 20:21:23,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:21:28,082 INFO L124 PetriNetUnfolderBase]: 49441/61056 cut-off events. [2023-11-29 20:21:28,083 INFO L125 PetriNetUnfolderBase]: For 6910/6910 co-relation queries the response was YES. [2023-11-29 20:21:28,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123985 conditions, 61056 events. 49441/61056 cut-off events. For 6910/6910 co-relation queries the response was YES. Maximal size of possible extension queue 2244. Compared 298070 event pairs, 5520 based on Foata normal form. 3/39636 useless extension candidates. Maximal degree in co-relation 122332. Up to 51903 conditions per place. [2023-11-29 20:21:28,601 INFO L140 encePairwiseOnDemand]: 156/178 looper letters, 73 selfloop transitions, 9 changer transitions 7/180 dead transitions. [2023-11-29 20:21:28,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 180 transitions, 607 flow [2023-11-29 20:21:28,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 20:21:28,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 20:21:28,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1122 transitions. [2023-11-29 20:21:28,613 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.700374531835206 [2023-11-29 20:21:28,613 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1122 transitions. [2023-11-29 20:21:28,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1122 transitions. [2023-11-29 20:21:28,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:21:28,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1122 transitions. [2023-11-29 20:21:28,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 124.66666666666667) internal successors, (1122), 9 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:28,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 178.0) internal successors, (1780), 10 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:28,625 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 178.0) internal successors, (1780), 10 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:28,626 INFO L307 CegarLoopForPetriNet]: 160 programPoint places, 8 predicate places. [2023-11-29 20:21:28,627 INFO L500 AbstractCegarLoop]: Abstraction has has 168 places, 180 transitions, 607 flow [2023-11-29 20:21:28,627 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:28,627 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:21:28,627 INFO L232 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] [2023-11-29 20:21:28,627 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 20:21:28,628 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 4 more)] === [2023-11-29 20:21:28,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:21:28,628 INFO L85 PathProgramCache]: Analyzing trace with hash -699848863, now seen corresponding path program 1 times [2023-11-29 20:21:28,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:21:28,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552031077] [2023-11-29 20:21:28,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:21:28,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:21:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:21:28,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:21:28,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:21:28,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552031077] [2023-11-29 20:21:28,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552031077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:21:28,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:21:28,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 20:21:28,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915928813] [2023-11-29 20:21:28,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:21:28,858 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 20:21:28,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:21:28,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 20:21:28,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 20:21:28,859 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 178 [2023-11-29 20:21:28,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 180 transitions, 607 flow. Second operand has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:28,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:21:28,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 178 [2023-11-29 20:21:28,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:21:36,302 INFO L124 PetriNetUnfolderBase]: 75093/98419 cut-off events. [2023-11-29 20:21:36,302 INFO L125 PetriNetUnfolderBase]: For 34149/69351 co-relation queries the response was YES. [2023-11-29 20:21:36,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271008 conditions, 98419 events. 75093/98419 cut-off events. For 34149/69351 co-relation queries the response was YES. Maximal size of possible extension queue 3927. Compared 598113 event pairs, 27898 based on Foata normal form. 8/65814 useless extension candidates. Maximal degree in co-relation 203203. Up to 82881 conditions per place. [2023-11-29 20:21:37,020 INFO L140 encePairwiseOnDemand]: 166/178 looper letters, 143 selfloop transitions, 16 changer transitions 9/273 dead transitions. [2023-11-29 20:21:37,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 273 transitions, 1408 flow [2023-11-29 20:21:37,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 20:21:37,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-29 20:21:37,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1110 transitions. [2023-11-29 20:21:37,025 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7794943820224719 [2023-11-29 20:21:37,025 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1110 transitions. [2023-11-29 20:21:37,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1110 transitions. [2023-11-29 20:21:37,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:21:37,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1110 transitions. [2023-11-29 20:21:37,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 138.75) internal successors, (1110), 8 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:37,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:37,030 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:37,030 INFO L307 CegarLoopForPetriNet]: 160 programPoint places, 15 predicate places. [2023-11-29 20:21:37,030 INFO L500 AbstractCegarLoop]: Abstraction has has 175 places, 273 transitions, 1408 flow [2023-11-29 20:21:37,031 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:37,031 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:21:37,031 INFO L232 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] [2023-11-29 20:21:37,031 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 20:21:37,032 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 4 more)] === [2023-11-29 20:21:37,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:21:37,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1592758801, now seen corresponding path program 2 times [2023-11-29 20:21:37,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:21:37,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640751455] [2023-11-29 20:21:37,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:21:37,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:21:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:21:37,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:21:37,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:21:37,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640751455] [2023-11-29 20:21:37,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640751455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:21:37,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:21:37,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 20:21:37,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094953789] [2023-11-29 20:21:37,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:21:37,256 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 20:21:37,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:21:37,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 20:21:37,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 20:21:37,264 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 178 [2023-11-29 20:21:37,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 273 transitions, 1408 flow. Second operand has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:37,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:21:37,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 178 [2023-11-29 20:21:37,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:21:43,710 INFO L124 PetriNetUnfolderBase]: 68721/90001 cut-off events. [2023-11-29 20:21:43,710 INFO L125 PetriNetUnfolderBase]: For 73594/141066 co-relation queries the response was YES. [2023-11-29 20:21:43,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316716 conditions, 90001 events. 68721/90001 cut-off events. For 73594/141066 co-relation queries the response was YES. Maximal size of possible extension queue 3518. Compared 534764 event pairs, 19137 based on Foata normal form. 86/60863 useless extension candidates. Maximal degree in co-relation 235632. Up to 75581 conditions per place. [2023-11-29 20:21:44,389 INFO L140 encePairwiseOnDemand]: 165/178 looper letters, 222 selfloop transitions, 23 changer transitions 8/358 dead transitions. [2023-11-29 20:21:44,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 358 transitions, 2493 flow [2023-11-29 20:21:44,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 20:21:44,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-29 20:21:44,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1096 transitions. [2023-11-29 20:21:44,391 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7696629213483146 [2023-11-29 20:21:44,391 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1096 transitions. [2023-11-29 20:21:44,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1096 transitions. [2023-11-29 20:21:44,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:21:44,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1096 transitions. [2023-11-29 20:21:44,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:44,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:44,398 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:44,399 INFO L307 CegarLoopForPetriNet]: 160 programPoint places, 22 predicate places. [2023-11-29 20:21:44,399 INFO L500 AbstractCegarLoop]: Abstraction has has 182 places, 358 transitions, 2493 flow [2023-11-29 20:21:44,399 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:44,399 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:21:44,399 INFO L232 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] [2023-11-29 20:21:44,399 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 20:21:44,399 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 4 more)] === [2023-11-29 20:21:44,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:21:44,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1210179617, now seen corresponding path program 1 times [2023-11-29 20:21:44,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:21:44,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535433615] [2023-11-29 20:21:44,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:21:44,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:21:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:21:44,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:21:44,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:21:44,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535433615] [2023-11-29 20:21:44,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535433615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:21:44,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:21:44,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 20:21:44,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026278106] [2023-11-29 20:21:44,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:21:44,678 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 20:21:44,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:21:44,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 20:21:44,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 20:21:44,680 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 178 [2023-11-29 20:21:44,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 358 transitions, 2493 flow. Second operand has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:44,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:21:44,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 178 [2023-11-29 20:21:44,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:21:52,602 INFO L124 PetriNetUnfolderBase]: 71357/94034 cut-off events. [2023-11-29 20:21:52,603 INFO L125 PetriNetUnfolderBase]: For 143208/235606 co-relation queries the response was YES. [2023-11-29 20:21:52,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401727 conditions, 94034 events. 71357/94034 cut-off events. For 143208/235606 co-relation queries the response was YES. Maximal size of possible extension queue 3809. Compared 580612 event pairs, 18706 based on Foata normal form. 98/64209 useless extension candidates. Maximal degree in co-relation 298050. Up to 79154 conditions per place. [2023-11-29 20:21:53,435 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 274 selfloop transitions, 23 changer transitions 8/410 dead transitions. [2023-11-29 20:21:53,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 410 transitions, 3570 flow [2023-11-29 20:21:53,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 20:21:53,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-29 20:21:53,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1096 transitions. [2023-11-29 20:21:53,438 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7696629213483146 [2023-11-29 20:21:53,438 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1096 transitions. [2023-11-29 20:21:53,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1096 transitions. [2023-11-29 20:21:53,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:21:53,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1096 transitions. [2023-11-29 20:21:53,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:53,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:53,442 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:53,442 INFO L307 CegarLoopForPetriNet]: 160 programPoint places, 29 predicate places. [2023-11-29 20:21:53,442 INFO L500 AbstractCegarLoop]: Abstraction has has 189 places, 410 transitions, 3570 flow [2023-11-29 20:21:53,443 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:53,443 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:21:53,443 INFO L232 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] [2023-11-29 20:21:53,443 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 20:21:53,443 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 4 more)] === [2023-11-29 20:21:53,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:21:53,443 INFO L85 PathProgramCache]: Analyzing trace with hash -154336221, now seen corresponding path program 1 times [2023-11-29 20:21:53,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:21:53,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287106891] [2023-11-29 20:21:53,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:21:53,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:21:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:21:53,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:21:53,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:21:53,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287106891] [2023-11-29 20:21:53,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287106891] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:21:53,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:21:53,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 20:21:53,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507317234] [2023-11-29 20:21:53,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:21:53,603 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 20:21:53,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:21:53,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 20:21:53,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 20:21:53,604 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 178 [2023-11-29 20:21:53,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 410 transitions, 3570 flow. Second operand has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:21:53,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:21:53,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 178 [2023-11-29 20:21:53,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:22:05,589 INFO L124 PetriNetUnfolderBase]: 105716/138876 cut-off events. [2023-11-29 20:22:05,589 INFO L125 PetriNetUnfolderBase]: For 339884/498428 co-relation queries the response was YES. [2023-11-29 20:22:06,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 700574 conditions, 138876 events. 105716/138876 cut-off events. For 339884/498428 co-relation queries the response was YES. Maximal size of possible extension queue 5853. Compared 896989 event pairs, 15547 based on Foata normal form. 206/97986 useless extension candidates. Maximal degree in co-relation 516779. Up to 121586 conditions per place. [2023-11-29 20:22:07,297 INFO L140 encePairwiseOnDemand]: 166/178 looper letters, 796 selfloop transitions, 70 changer transitions 12/993 dead transitions. [2023-11-29 20:22:07,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 993 transitions, 11636 flow [2023-11-29 20:22:07,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 20:22:07,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-29 20:22:07,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1107 transitions. [2023-11-29 20:22:07,299 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7773876404494382 [2023-11-29 20:22:07,299 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1107 transitions. [2023-11-29 20:22:07,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1107 transitions. [2023-11-29 20:22:07,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:22:07,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1107 transitions. [2023-11-29 20:22:07,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 138.375) internal successors, (1107), 8 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:22:07,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:22:07,303 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:22:07,303 INFO L307 CegarLoopForPetriNet]: 160 programPoint places, 36 predicate places. [2023-11-29 20:22:07,303 INFO L500 AbstractCegarLoop]: Abstraction has has 196 places, 993 transitions, 11636 flow [2023-11-29 20:22:07,304 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:22:07,304 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:22:07,304 INFO L232 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] [2023-11-29 20:22:07,304 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 20:22:07,304 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 4 more)] === [2023-11-29 20:22:07,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:22:07,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1995716961, now seen corresponding path program 2 times [2023-11-29 20:22:07,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:22:07,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461324609] [2023-11-29 20:22:07,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:22:07,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:22:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:22:07,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:22:07,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:22:07,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461324609] [2023-11-29 20:22:07,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461324609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:22:07,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:22:07,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 20:22:07,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138372154] [2023-11-29 20:22:07,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:22:07,604 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 20:22:07,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:22:07,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 20:22:07,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-29 20:22:07,605 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 178 [2023-11-29 20:22:07,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 993 transitions, 11636 flow. Second operand has 6 states, 6 states have (on average 118.66666666666667) internal successors, (712), 6 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:22:07,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:22:07,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 178 [2023-11-29 20:22:07,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:22:22,703 INFO L124 PetriNetUnfolderBase]: 104007/140366 cut-off events. [2023-11-29 20:22:22,703 INFO L125 PetriNetUnfolderBase]: For 372393/666730 co-relation queries the response was YES. [2023-11-29 20:22:23,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 817285 conditions, 140366 events. 104007/140366 cut-off events. For 372393/666730 co-relation queries the response was YES. Maximal size of possible extension queue 5827. Compared 957308 event pairs, 15574 based on Foata normal form. 596/99466 useless extension candidates. Maximal degree in co-relation 696122. Up to 120226 conditions per place. [2023-11-29 20:22:24,623 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 953 selfloop transitions, 28 changer transitions 12/1082 dead transitions. [2023-11-29 20:22:24,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 1082 transitions, 14737 flow [2023-11-29 20:22:24,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 20:22:24,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-29 20:22:24,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 890 transitions. [2023-11-29 20:22:24,643 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2023-11-29 20:22:24,643 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 890 transitions. [2023-11-29 20:22:24,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 890 transitions. [2023-11-29 20:22:24,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:22:24,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 890 transitions. [2023-11-29 20:22:24,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 127.14285714285714) internal successors, (890), 7 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:22:24,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 178.0) internal successors, (1424), 8 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:22:24,646 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 178.0) internal successors, (1424), 8 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:22:24,646 INFO L307 CegarLoopForPetriNet]: 160 programPoint places, 42 predicate places. [2023-11-29 20:22:24,647 INFO L500 AbstractCegarLoop]: Abstraction has has 202 places, 1082 transitions, 14737 flow [2023-11-29 20:22:24,647 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.66666666666667) internal successors, (712), 6 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:22:24,647 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:22:24,647 INFO L232 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] [2023-11-29 20:22:24,647 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 20:22:24,647 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 4 more)] === [2023-11-29 20:22:24,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:22:24,648 INFO L85 PathProgramCache]: Analyzing trace with hash -5444011, now seen corresponding path program 1 times [2023-11-29 20:22:24,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:22:24,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727434922] [2023-11-29 20:22:24,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:22:24,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:22:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:22:24,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:22:24,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:22:24,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727434922] [2023-11-29 20:22:24,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727434922] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 20:22:24,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407828016] [2023-11-29 20:22:24,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:22:24,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:22:24,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:22:24,930 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 20:22:24,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 20:22:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:22:25,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 20:22:25,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 20:22:25,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:22:25,366 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 20:22:25,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:22:25,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407828016] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 20:22:25,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 20:22:25,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2023-11-29 20:22:25,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454695439] [2023-11-29 20:22:25,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 20:22:25,653 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 20:22:25,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:22:25,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 20:22:25,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 20:22:25,655 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 178 [2023-11-29 20:22:25,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 1082 transitions, 14737 flow. Second operand has 10 states, 10 states have (on average 129.1) internal successors, (1291), 10 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:22:25,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:22:25,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 178 [2023-11-29 20:22:25,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:22:46,525 INFO L124 PetriNetUnfolderBase]: 127395/171935 cut-off events. [2023-11-29 20:22:46,526 INFO L125 PetriNetUnfolderBase]: For 612254/1314395 co-relation queries the response was YES. [2023-11-29 20:22:47,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1126080 conditions, 171935 events. 127395/171935 cut-off events. For 612254/1314395 co-relation queries the response was YES. Maximal size of possible extension queue 7050. Compared 1203479 event pairs, 13489 based on Foata normal form. 2163/127065 useless extension candidates. Maximal degree in co-relation 1061125. Up to 149759 conditions per place. [2023-11-29 20:22:49,304 INFO L140 encePairwiseOnDemand]: 160/178 looper letters, 1702 selfloop transitions, 111 changer transitions 14/1947 dead transitions. [2023-11-29 20:22:49,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 1947 transitions, 31242 flow [2023-11-29 20:22:49,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 20:22:49,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-29 20:22:49,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2013 transitions. [2023-11-29 20:22:49,321 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7539325842696629 [2023-11-29 20:22:49,321 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2013 transitions. [2023-11-29 20:22:49,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2013 transitions. [2023-11-29 20:22:49,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:22:49,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2013 transitions. [2023-11-29 20:22:49,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 134.2) internal successors, (2013), 15 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:22:49,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 178.0) internal successors, (2848), 16 states have internal predecessors, (2848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:22:49,327 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 178.0) internal successors, (2848), 16 states have internal predecessors, (2848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:22:49,328 INFO L307 CegarLoopForPetriNet]: 160 programPoint places, 56 predicate places. [2023-11-29 20:22:49,328 INFO L500 AbstractCegarLoop]: Abstraction has has 216 places, 1947 transitions, 31242 flow [2023-11-29 20:22:49,328 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.1) internal successors, (1291), 10 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:22:49,328 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:22:49,328 INFO L232 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] [2023-11-29 20:22:49,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-29 20:22:49,529 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:22:49,529 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 4 more)] === [2023-11-29 20:22:49,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:22:49,530 INFO L85 PathProgramCache]: Analyzing trace with hash -304605731, now seen corresponding path program 1 times [2023-11-29 20:22:49,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:22:49,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638400617] [2023-11-29 20:22:49,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:22:49,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:22:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:22:49,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:22:49,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:22:49,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638400617] [2023-11-29 20:22:49,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638400617] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:22:49,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:22:49,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 20:22:49,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899599801] [2023-11-29 20:22:49,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:22:49,789 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 20:22:49,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:22:49,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 20:22:49,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 20:22:49,790 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 178 [2023-11-29 20:22:49,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 1947 transitions, 31242 flow. Second operand has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:22:49,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:22:49,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 178 [2023-11-29 20:22:49,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:23:32,394 INFO L124 PetriNetUnfolderBase]: 174938/248331 cut-off events. [2023-11-29 20:23:32,395 INFO L125 PetriNetUnfolderBase]: For 831808/1607574 co-relation queries the response was YES. [2023-11-29 20:23:33,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1716132 conditions, 248331 events. 174938/248331 cut-off events. For 831808/1607574 co-relation queries the response was YES. Maximal size of possible extension queue 11606. Compared 2032091 event pairs, 4290 based on Foata normal form. 1772/189879 useless extension candidates. Maximal degree in co-relation 1687524. Up to 208581 conditions per place. [2023-11-29 20:23:36,916 INFO L140 encePairwiseOnDemand]: 165/178 looper letters, 4889 selfloop transitions, 598 changer transitions 21/5636 dead transitions. [2023-11-29 20:23:36,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 5636 transitions, 103622 flow [2023-11-29 20:23:36,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 20:23:36,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-29 20:23:36,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1093 transitions. [2023-11-29 20:23:36,918 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7675561797752809 [2023-11-29 20:23:36,918 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1093 transitions. [2023-11-29 20:23:36,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1093 transitions. [2023-11-29 20:23:36,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:23:36,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1093 transitions. [2023-11-29 20:23:36,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 136.625) internal successors, (1093), 8 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:23:36,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:23:36,922 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:23:36,924 INFO L307 CegarLoopForPetriNet]: 160 programPoint places, 63 predicate places. [2023-11-29 20:23:36,924 INFO L500 AbstractCegarLoop]: Abstraction has has 223 places, 5636 transitions, 103622 flow [2023-11-29 20:23:36,924 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:23:36,924 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:23:36,924 INFO L232 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] [2023-11-29 20:23:36,924 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 20:23:36,924 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 4 more)] === [2023-11-29 20:23:36,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:23:36,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1852864385, now seen corresponding path program 2 times [2023-11-29 20:23:36,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:23:36,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648206947] [2023-11-29 20:23:36,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:23:36,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:23:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:23:37,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:23:37,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:23:37,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648206947] [2023-11-29 20:23:37,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648206947] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:23:37,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:23:37,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 20:23:37,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107119271] [2023-11-29 20:23:37,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:23:37,114 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 20:23:37,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:23:37,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 20:23:37,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 20:23:37,115 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 178 [2023-11-29 20:23:37,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 5636 transitions, 103622 flow. Second operand has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:23:37,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:23:37,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 178 [2023-11-29 20:23:37,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:25:08,385 INFO L124 PetriNetUnfolderBase]: 171624/243971 cut-off events. [2023-11-29 20:25:08,386 INFO L125 PetriNetUnfolderBase]: For 1026575/2177373 co-relation queries the response was YES. [2023-11-29 20:25:09,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1851995 conditions, 243971 events. 171624/243971 cut-off events. For 1026575/2177373 co-relation queries the response was YES. Maximal size of possible extension queue 10895. Compared 1986571 event pairs, 2749 based on Foata normal form. 9121/197848 useless extension candidates. Maximal degree in co-relation 1375920. Up to 205962 conditions per place. [2023-11-29 20:25:12,957 INFO L140 encePairwiseOnDemand]: 166/178 looper letters, 9018 selfloop transitions, 887 changer transitions 22/10055 dead transitions. [2023-11-29 20:25:12,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 10055 transitions, 205392 flow [2023-11-29 20:25:12,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 20:25:12,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-29 20:25:12,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1094 transitions. [2023-11-29 20:25:12,960 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7682584269662921 [2023-11-29 20:25:12,960 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1094 transitions. [2023-11-29 20:25:12,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1094 transitions. [2023-11-29 20:25:12,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:25:12,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1094 transitions. [2023-11-29 20:25:12,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 136.75) internal successors, (1094), 8 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:25:12,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:25:12,963 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:25:12,964 INFO L307 CegarLoopForPetriNet]: 160 programPoint places, 70 predicate places. [2023-11-29 20:25:12,964 INFO L500 AbstractCegarLoop]: Abstraction has has 230 places, 10055 transitions, 205392 flow [2023-11-29 20:25:12,964 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:25:12,964 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:25:12,964 INFO L232 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] [2023-11-29 20:25:12,964 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 20:25:12,964 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 4 more)] === [2023-11-29 20:25:12,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:25:12,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1930129711, now seen corresponding path program 1 times [2023-11-29 20:25:12,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:25:12,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603518327] [2023-11-29 20:25:12,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:25:12,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:25:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:25:13,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:25:13,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:25:13,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603518327] [2023-11-29 20:25:13,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603518327] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:25:13,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:25:13,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 20:25:13,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105633019] [2023-11-29 20:25:13,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:25:13,140 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 20:25:13,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:25:13,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 20:25:13,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 20:25:13,141 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 178 [2023-11-29 20:25:13,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 10055 transitions, 205392 flow. Second operand has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:25:13,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:25:13,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 178 [2023-11-29 20:25:13,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:28:28,008 INFO L124 PetriNetUnfolderBase]: 179203/253065 cut-off events. [2023-11-29 20:28:28,008 INFO L125 PetriNetUnfolderBase]: For 1261224/3490830 co-relation queries the response was YES. [2023-11-29 20:28:29,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2099757 conditions, 253065 events. 179203/253065 cut-off events. For 1261224/3490830 co-relation queries the response was YES. Maximal size of possible extension queue 11553. Compared 2051885 event pairs, 2471 based on Foata normal form. 10518/208094 useless extension candidates. Maximal degree in co-relation 1984141. Up to 216102 conditions per place. [2023-11-29 20:28:32,767 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 11672 selfloop transitions, 885 changer transitions 37/12722 dead transitions. [2023-11-29 20:28:32,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 12722 transitions, 285387 flow [2023-11-29 20:28:32,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 20:28:32,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-29 20:28:32,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1092 transitions. [2023-11-29 20:28:32,771 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7668539325842697 [2023-11-29 20:28:32,771 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1092 transitions. [2023-11-29 20:28:32,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1092 transitions. [2023-11-29 20:28:32,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:28:32,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1092 transitions. [2023-11-29 20:28:32,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 136.5) internal successors, (1092), 8 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:28:32,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:28:32,775 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:28:32,775 INFO L307 CegarLoopForPetriNet]: 160 programPoint places, 77 predicate places. [2023-11-29 20:28:32,775 INFO L500 AbstractCegarLoop]: Abstraction has has 237 places, 12722 transitions, 285387 flow [2023-11-29 20:28:32,775 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:28:32,775 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:28:32,775 INFO L232 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] [2023-11-29 20:28:32,775 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 20:28:32,776 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 4 more)] === [2023-11-29 20:28:32,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:28:32,776 INFO L85 PathProgramCache]: Analyzing trace with hash 2022930303, now seen corresponding path program 2 times [2023-11-29 20:28:32,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:28:32,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750200460] [2023-11-29 20:28:32,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:28:32,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:28:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:28:32,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:28:32,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:28:32,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750200460] [2023-11-29 20:28:32,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750200460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:28:32,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:28:32,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 20:28:32,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588778963] [2023-11-29 20:28:32,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:28:32,920 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 20:28:32,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:28:32,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 20:28:32,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 20:28:32,921 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 178 [2023-11-29 20:28:32,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 12722 transitions, 285387 flow. Second operand has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:28:32,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:28:32,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 178 [2023-11-29 20:28:32,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-11-29 20:33:07,139 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 [2023-11-29 20:33:08,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-11-29 20:33:08,423 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-11-29 20:33:08,424 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 20:33:08,424 WARN L624 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-11-29 20:33:08,425 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 7 remaining) [2023-11-29 20:33:08,425 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-29 20:33:08,425 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-11-29 20:33:08,425 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-11-29 20:33:08,425 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2023-11-29 20:33:08,425 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2023-11-29 20:33:08,426 INFO L457 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1] [2023-11-29 20:33:08,443 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 20:33:08,443 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 20:33:08,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:33:08 BasicIcfg [2023-11-29 20:33:08,446 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 20:33:08,446 INFO L158 Benchmark]: Toolchain (without parser) took 706662.90ms. Allocated memory was 555.7MB in the beginning and 16.0GB in the end (delta: 15.4GB). Free memory was 510.5MB in the beginning and 9.2GB in the end (delta: -8.7GB). Peak memory consumption was 8.6GB. Max. memory is 16.0GB. [2023-11-29 20:33:08,446 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 354.4MB. Free memory was 305.0MB in the beginning and 304.9MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-29 20:33:08,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 148.46ms. Allocated memory is still 555.7MB. Free memory was 510.5MB in the beginning and 498.6MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-11-29 20:33:08,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.84ms. Allocated memory is still 555.7MB. Free memory was 498.6MB in the beginning and 496.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 20:33:08,458 INFO L158 Benchmark]: Boogie Preprocessor took 22.39ms. Allocated memory is still 555.7MB. Free memory was 496.7MB in the beginning and 494.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 20:33:08,459 INFO L158 Benchmark]: RCFGBuilder took 392.85ms. Allocated memory is still 555.7MB. Free memory was 494.9MB in the beginning and 476.4MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-11-29 20:33:08,459 INFO L158 Benchmark]: TraceAbstraction took 706065.46ms. Allocated memory was 555.7MB in the beginning and 16.0GB in the end (delta: 15.4GB). Free memory was 475.7MB in the beginning and 9.2GB in the end (delta: -8.7GB). Peak memory consumption was 8.5GB. Max. memory is 16.0GB. [2023-11-29 20:33:08,460 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 354.4MB. Free memory was 305.0MB in the beginning and 304.9MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 148.46ms. Allocated memory is still 555.7MB. Free memory was 510.5MB in the beginning and 498.6MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 29.84ms. Allocated memory is still 555.7MB. Free memory was 498.6MB in the beginning and 496.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.39ms. Allocated memory is still 555.7MB. Free memory was 496.7MB in the beginning and 494.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 392.85ms. Allocated memory is still 555.7MB. Free memory was 494.9MB in the beginning and 476.4MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 706065.46ms. Allocated memory was 555.7MB in the beginning and 16.0GB in the end (delta: 15.4GB). Free memory was 475.7MB in the beginning and 9.2GB in the end (delta: -8.7GB). Peak memory consumption was 8.5GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 101]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 207 locations, 7 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: 705.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 701.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1133 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1133 mSDsluCounter, 615 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 338 mSDsCounter, 91 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1941 IncrementalHoareTripleChecker+Invalid, 2032 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 91 mSolverCounterUnsat, 277 mSDtfsCounter, 1941 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 369 GetRequests, 286 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=285387occurred in iteration=10, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 1618 NumberOfCodeBlocks, 1618 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1740 ConstructedInterpolants, 0 QuantifiedInterpolants, 16683 SizeOfPredicates, 14 NumberOfNonLiveVariables, 423 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 9/12 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