/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/popl20-bad-threaded-sum-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-29 21:59:13,840 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 21:59:13,906 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 21:59:13,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 21:59:13,940 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 21:59:13,940 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 21:59:13,941 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 21:59:13,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 21:59:13,941 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 21:59:13,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 21:59:13,945 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 21:59:13,945 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 21:59:13,945 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 21:59:13,946 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 21:59:13,946 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 21:59:13,946 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 21:59:13,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 21:59:13,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 21:59:13,947 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 21:59:13,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 21:59:13,947 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 21:59:13,947 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 21:59:13,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 21:59:13,948 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-29 21:59:13,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 21:59:13,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 21:59:13,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 21:59:13,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 21:59:13,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 21:59:13,950 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 21:59:13,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 21:59:13,951 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 21:59:13,951 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 21:59:13,951 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-11-29 21:59:14,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 21:59:14,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 21:59:14,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 21:59:14,137 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 21:59:14,139 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 21:59:14,140 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c [2023-11-29 21:59:15,147 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 21:59:15,287 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 21:59:15,287 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c [2023-11-29 21:59:15,292 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/894b0b109/c0179073c5d44e7ea87b8cb336172345/FLAGebc45a0fa [2023-11-29 21:59:15,301 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/894b0b109/c0179073c5d44e7ea87b8cb336172345 [2023-11-29 21:59:15,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 21:59:15,304 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-29 21:59:15,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 21:59:15,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 21:59:15,307 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 21:59:15,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:59:15" (1/1) ... [2023-11-29 21:59:15,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e6ebeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:15, skipping insertion in model container [2023-11-29 21:59:15,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:59:15" (1/1) ... [2023-11-29 21:59:15,323 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 21:59:15,451 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c[2502,2515] [2023-11-29 21:59:15,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 21:59:15,469 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 21:59:15,498 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c[2502,2515] [2023-11-29 21:59:15,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 21:59:15,504 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 21:59:15,504 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 21:59:15,509 INFO L206 MainTranslator]: Completed translation [2023-11-29 21:59:15,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:15 WrapperNode [2023-11-29 21:59:15,510 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 21:59:15,511 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 21:59:15,511 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 21:59:15,512 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 21:59:15,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:15" (1/1) ... [2023-11-29 21:59:15,526 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:15" (1/1) ... [2023-11-29 21:59:15,543 INFO L138 Inliner]: procedures = 21, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2023-11-29 21:59:15,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 21:59:15,544 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 21:59:15,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 21:59:15,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 21:59:15,550 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:15" (1/1) ... [2023-11-29 21:59:15,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:15" (1/1) ... [2023-11-29 21:59:15,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:15" (1/1) ... [2023-11-29 21:59:15,554 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:15" (1/1) ... [2023-11-29 21:59:15,566 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:15" (1/1) ... [2023-11-29 21:59:15,570 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:15" (1/1) ... [2023-11-29 21:59:15,573 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:15" (1/1) ... [2023-11-29 21:59:15,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:15" (1/1) ... [2023-11-29 21:59:15,575 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 21:59:15,575 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 21:59:15,577 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 21:59:15,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 21:59:15,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:15" (1/1) ... [2023-11-29 21:59:15,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 21:59:15,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 21:59:15,614 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 21:59:15,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 21:59:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 21:59:15,646 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 21:59:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 21:59:15,646 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 21:59:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 21:59:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 21:59:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 21:59:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 21:59:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 21:59:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 21:59:15,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 21:59:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 21:59:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 21:59:15,632 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 21:59:15,648 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 21:59:15,745 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 21:59:15,748 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 21:59:15,910 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 21:59:15,949 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 21:59:15,949 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 21:59:15,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:59:15 BoogieIcfgContainer [2023-11-29 21:59:15,950 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 21:59:15,952 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 21:59:15,952 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 21:59:15,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 21:59:15,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:59:15" (1/3) ... [2023-11-29 21:59:15,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc0556f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:59:15, skipping insertion in model container [2023-11-29 21:59:15,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:15" (2/3) ... [2023-11-29 21:59:15,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc0556f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:59:15, skipping insertion in model container [2023-11-29 21:59:15,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:59:15" (3/3) ... [2023-11-29 21:59:15,955 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-threaded-sum-2.wvr.c [2023-11-29 21:59:15,967 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 21:59:15,967 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 21:59:15,967 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 21:59:16,022 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-29 21:59:16,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 88 transitions, 190 flow [2023-11-29 21:59:16,076 INFO L124 PetriNetUnfolderBase]: 6/86 cut-off events. [2023-11-29 21:59:16,076 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 21:59:16,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 86 events. 6/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2023-11-29 21:59:16,079 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 88 transitions, 190 flow [2023-11-29 21:59:16,082 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 77 transitions, 166 flow [2023-11-29 21:59:16,088 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 21:59:16,092 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;@4be15819, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 21:59:16,092 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-29 21:59:16,108 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 21:59:16,108 INFO L124 PetriNetUnfolderBase]: 6/76 cut-off events. [2023-11-29 21:59:16,108 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 21:59:16,108 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:59:16,108 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] [2023-11-29 21:59:16,109 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 21:59:16,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:59:16,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1084365754, now seen corresponding path program 1 times [2023-11-29 21:59:16,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:59:16,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690889299] [2023-11-29 21:59:16,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:59:16,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:59:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:59:16,658 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 21:59:16,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:59:16,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690889299] [2023-11-29 21:59:16,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690889299] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:59:16,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 21:59:16,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 21:59:16,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844839131] [2023-11-29 21:59:16,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:59:16,667 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 21:59:16,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:59:16,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 21:59:16,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 21:59:16,690 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 88 [2023-11-29 21:59:16,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 77 transitions, 166 flow. Second operand has 7 states, 7 states have (on average 53.57142857142857) internal successors, (375), 7 states have internal predecessors, (375), 0 states have call successors, (0), 0 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 21:59:16,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:59:16,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 88 [2023-11-29 21:59:16,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:59:16,924 INFO L124 PetriNetUnfolderBase]: 51/184 cut-off events. [2023-11-29 21:59:16,924 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-11-29 21:59:16,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 184 events. 51/184 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 593 event pairs, 2 based on Foata normal form. 17/190 useless extension candidates. Maximal degree in co-relation 224. Up to 58 conditions per place. [2023-11-29 21:59:16,927 INFO L140 encePairwiseOnDemand]: 74/88 looper letters, 46 selfloop transitions, 10 changer transitions 2/98 dead transitions. [2023-11-29 21:59:16,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 98 transitions, 342 flow [2023-11-29 21:59:16,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 21:59:16,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 21:59:16,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 571 transitions. [2023-11-29 21:59:16,943 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6488636363636363 [2023-11-29 21:59:16,943 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 571 transitions. [2023-11-29 21:59:16,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 571 transitions. [2023-11-29 21:59:16,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:59:16,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 571 transitions. [2023-11-29 21:59:16,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 57.1) internal successors, (571), 10 states have internal predecessors, (571), 0 states have call successors, (0), 0 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 21:59:16,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 88.0) internal successors, (968), 11 states have internal predecessors, (968), 0 states have call successors, (0), 0 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 21:59:16,963 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 88.0) internal successors, (968), 11 states have internal predecessors, (968), 0 states have call successors, (0), 0 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 21:59:16,969 INFO L307 CegarLoopForPetriNet]: 78 programPoint places, 9 predicate places. [2023-11-29 21:59:16,969 INFO L500 AbstractCegarLoop]: Abstraction has has 87 places, 98 transitions, 342 flow [2023-11-29 21:59:16,970 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.57142857142857) internal successors, (375), 7 states have internal predecessors, (375), 0 states have call successors, (0), 0 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 21:59:16,970 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:59:16,971 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] [2023-11-29 21:59:16,971 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 21:59:16,972 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 21:59:16,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:59:16,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1381471559, now seen corresponding path program 1 times [2023-11-29 21:59:16,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:59:16,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457211469] [2023-11-29 21:59:16,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:59:16,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:59:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:59:17,270 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 21:59:17,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:59:17,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457211469] [2023-11-29 21:59:17,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457211469] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:59:17,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 21:59:17,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 21:59:17,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029886073] [2023-11-29 21:59:17,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:59:17,272 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 21:59:17,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:59:17,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 21:59:17,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 21:59:17,274 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 88 [2023-11-29 21:59:17,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 98 transitions, 342 flow. Second operand has 5 states, 5 states have (on average 64.8) internal successors, (324), 5 states have internal predecessors, (324), 0 states have call successors, (0), 0 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 21:59:17,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:59:17,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 88 [2023-11-29 21:59:17,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:59:17,426 INFO L124 PetriNetUnfolderBase]: 109/390 cut-off events. [2023-11-29 21:59:17,427 INFO L125 PetriNetUnfolderBase]: For 202/222 co-relation queries the response was YES. [2023-11-29 21:59:17,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 903 conditions, 390 events. 109/390 cut-off events. For 202/222 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1843 event pairs, 7 based on Foata normal form. 12/365 useless extension candidates. Maximal degree in co-relation 573. Up to 125 conditions per place. [2023-11-29 21:59:17,430 INFO L140 encePairwiseOnDemand]: 77/88 looper letters, 55 selfloop transitions, 32 changer transitions 10/146 dead transitions. [2023-11-29 21:59:17,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 146 transitions, 762 flow [2023-11-29 21:59:17,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 21:59:17,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 21:59:17,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 413 transitions. [2023-11-29 21:59:17,431 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7821969696969697 [2023-11-29 21:59:17,431 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 413 transitions. [2023-11-29 21:59:17,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 413 transitions. [2023-11-29 21:59:17,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:59:17,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 413 transitions. [2023-11-29 21:59:17,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 0 states have call successors, (0), 0 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 21:59:17,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 88.0) internal successors, (616), 7 states have internal predecessors, (616), 0 states have call successors, (0), 0 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 21:59:17,434 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 88.0) internal successors, (616), 7 states have internal predecessors, (616), 0 states have call successors, (0), 0 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 21:59:17,434 INFO L307 CegarLoopForPetriNet]: 78 programPoint places, 14 predicate places. [2023-11-29 21:59:17,435 INFO L500 AbstractCegarLoop]: Abstraction has has 92 places, 146 transitions, 762 flow [2023-11-29 21:59:17,435 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.8) internal successors, (324), 5 states have internal predecessors, (324), 0 states have call successors, (0), 0 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 21:59:17,435 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:59:17,435 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] [2023-11-29 21:59:17,435 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 21:59:17,435 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 21:59:17,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:59:17,436 INFO L85 PathProgramCache]: Analyzing trace with hash -439987785, now seen corresponding path program 2 times [2023-11-29 21:59:17,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:59:17,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550677084] [2023-11-29 21:59:17,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:59:17,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:59:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:59:17,718 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 21:59:17,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:59:17,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550677084] [2023-11-29 21:59:17,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550677084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:59:17,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 21:59:17,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 21:59:17,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513452903] [2023-11-29 21:59:17,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:59:17,720 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 21:59:17,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:59:17,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 21:59:17,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 21:59:17,723 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 88 [2023-11-29 21:59:17,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 146 transitions, 762 flow. Second operand has 5 states, 5 states have (on average 64.8) internal successors, (324), 5 states have internal predecessors, (324), 0 states have call successors, (0), 0 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 21:59:17,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:59:17,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 88 [2023-11-29 21:59:17,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:59:17,893 INFO L124 PetriNetUnfolderBase]: 134/481 cut-off events. [2023-11-29 21:59:17,894 INFO L125 PetriNetUnfolderBase]: For 446/536 co-relation queries the response was YES. [2023-11-29 21:59:17,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1400 conditions, 481 events. 134/481 cut-off events. For 446/536 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2527 event pairs, 6 based on Foata normal form. 25/459 useless extension candidates. Maximal degree in co-relation 917. Up to 150 conditions per place. [2023-11-29 21:59:17,897 INFO L140 encePairwiseOnDemand]: 78/88 looper letters, 76 selfloop transitions, 57 changer transitions 10/192 dead transitions. [2023-11-29 21:59:17,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 192 transitions, 1341 flow [2023-11-29 21:59:17,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 21:59:17,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 21:59:17,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 420 transitions. [2023-11-29 21:59:17,898 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7954545454545454 [2023-11-29 21:59:17,898 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 420 transitions. [2023-11-29 21:59:17,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 420 transitions. [2023-11-29 21:59:17,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:59:17,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 420 transitions. [2023-11-29 21:59:17,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 70.0) internal successors, (420), 6 states have internal predecessors, (420), 0 states have call successors, (0), 0 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 21:59:17,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 88.0) internal successors, (616), 7 states have internal predecessors, (616), 0 states have call successors, (0), 0 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 21:59:17,901 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 88.0) internal successors, (616), 7 states have internal predecessors, (616), 0 states have call successors, (0), 0 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 21:59:17,901 INFO L307 CegarLoopForPetriNet]: 78 programPoint places, 19 predicate places. [2023-11-29 21:59:17,901 INFO L500 AbstractCegarLoop]: Abstraction has has 97 places, 192 transitions, 1341 flow [2023-11-29 21:59:17,901 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.8) internal successors, (324), 5 states have internal predecessors, (324), 0 states have call successors, (0), 0 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 21:59:17,901 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:59:17,902 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] [2023-11-29 21:59:17,902 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 21:59:17,902 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 21:59:17,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:59:17,902 INFO L85 PathProgramCache]: Analyzing trace with hash -2108056335, now seen corresponding path program 3 times [2023-11-29 21:59:17,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:59:17,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869202738] [2023-11-29 21:59:17,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:59:17,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:59:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:59:18,106 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 21:59:18,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:59:18,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869202738] [2023-11-29 21:59:18,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869202738] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:59:18,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 21:59:18,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 21:59:18,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102055588] [2023-11-29 21:59:18,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:59:18,107 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 21:59:18,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:59:18,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 21:59:18,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 21:59:18,108 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 88 [2023-11-29 21:59:18,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 192 transitions, 1341 flow. Second operand has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 0 states have call successors, (0), 0 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 21:59:18,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:59:18,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 88 [2023-11-29 21:59:18,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:59:18,260 INFO L124 PetriNetUnfolderBase]: 163/553 cut-off events. [2023-11-29 21:59:18,260 INFO L125 PetriNetUnfolderBase]: For 704/1023 co-relation queries the response was YES. [2023-11-29 21:59:18,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2043 conditions, 553 events. 163/553 cut-off events. For 704/1023 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3116 event pairs, 6 based on Foata normal form. 76/578 useless extension candidates. Maximal degree in co-relation 1372. Up to 208 conditions per place. [2023-11-29 21:59:18,264 INFO L140 encePairwiseOnDemand]: 78/88 looper letters, 94 selfloop transitions, 60 changer transitions 10/213 dead transitions. [2023-11-29 21:59:18,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 213 transitions, 1846 flow [2023-11-29 21:59:18,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 21:59:18,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-29 21:59:18,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 493 transitions. [2023-11-29 21:59:18,266 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8003246753246753 [2023-11-29 21:59:18,266 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 493 transitions. [2023-11-29 21:59:18,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 493 transitions. [2023-11-29 21:59:18,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:59:18,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 493 transitions. [2023-11-29 21:59:18,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 70.42857142857143) internal successors, (493), 7 states have internal predecessors, (493), 0 states have call successors, (0), 0 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 21:59:18,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 88.0) internal successors, (704), 8 states have internal predecessors, (704), 0 states have call successors, (0), 0 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 21:59:18,268 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 88.0) internal successors, (704), 8 states have internal predecessors, (704), 0 states have call successors, (0), 0 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 21:59:18,269 INFO L307 CegarLoopForPetriNet]: 78 programPoint places, 25 predicate places. [2023-11-29 21:59:18,269 INFO L500 AbstractCegarLoop]: Abstraction has has 103 places, 213 transitions, 1846 flow [2023-11-29 21:59:18,269 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 0 states have call successors, (0), 0 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 21:59:18,269 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:59:18,269 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] [2023-11-29 21:59:18,269 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 21:59:18,270 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 21:59:18,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:59:18,270 INFO L85 PathProgramCache]: Analyzing trace with hash -881023089, now seen corresponding path program 4 times [2023-11-29 21:59:18,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:59:18,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579335647] [2023-11-29 21:59:18,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:59:18,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:59:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:59:18,482 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 21:59:18,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:59:18,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579335647] [2023-11-29 21:59:18,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579335647] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 21:59:18,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356816914] [2023-11-29 21:59:18,483 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 21:59:18,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 21:59:18,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 21:59:18,498 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 21:59:18,530 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 21:59:18,566 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 21:59:18,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 21:59:18,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 21:59:18,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 21:59:18,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 21:59:18,792 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 21:59:18,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356816914] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:59:18,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 21:59:18,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2023-11-29 21:59:18,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359125810] [2023-11-29 21:59:18,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:59:18,793 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 21:59:18,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:59:18,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 21:59:18,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 21:59:18,794 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 88 [2023-11-29 21:59:18,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 213 transitions, 1846 flow. Second operand has 7 states, 7 states have (on average 52.285714285714285) internal successors, (366), 7 states have internal predecessors, (366), 0 states have call successors, (0), 0 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 21:59:18,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:59:18,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 88 [2023-11-29 21:59:18,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:59:19,027 INFO L124 PetriNetUnfolderBase]: 161/502 cut-off events. [2023-11-29 21:59:19,027 INFO L125 PetriNetUnfolderBase]: For 680/735 co-relation queries the response was YES. [2023-11-29 21:59:19,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2304 conditions, 502 events. 161/502 cut-off events. For 680/735 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2426 event pairs, 6 based on Foata normal form. 16/477 useless extension candidates. Maximal degree in co-relation 1971. Up to 277 conditions per place. [2023-11-29 21:59:19,031 INFO L140 encePairwiseOnDemand]: 75/88 looper letters, 154 selfloop transitions, 31 changer transitions 2/225 dead transitions. [2023-11-29 21:59:19,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 225 transitions, 2271 flow [2023-11-29 21:59:19,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 21:59:19,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 21:59:19,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 647 transitions. [2023-11-29 21:59:19,033 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6126893939393939 [2023-11-29 21:59:19,033 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 647 transitions. [2023-11-29 21:59:19,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 647 transitions. [2023-11-29 21:59:19,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:59:19,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 647 transitions. [2023-11-29 21:59:19,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.916666666666664) internal successors, (647), 12 states have internal predecessors, (647), 0 states have call successors, (0), 0 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 21:59:19,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 88.0) internal successors, (1144), 13 states have internal predecessors, (1144), 0 states have call successors, (0), 0 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 21:59:19,036 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 88.0) internal successors, (1144), 13 states have internal predecessors, (1144), 0 states have call successors, (0), 0 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 21:59:19,040 INFO L307 CegarLoopForPetriNet]: 78 programPoint places, 36 predicate places. [2023-11-29 21:59:19,040 INFO L500 AbstractCegarLoop]: Abstraction has has 114 places, 225 transitions, 2271 flow [2023-11-29 21:59:19,041 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.285714285714285) internal successors, (366), 7 states have internal predecessors, (366), 0 states have call successors, (0), 0 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 21:59:19,041 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:59:19,041 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] [2023-11-29 21:59:19,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 21:59:19,246 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 21:59:19,246 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 21:59:19,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:59:19,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1941605729, now seen corresponding path program 5 times [2023-11-29 21:59:19,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:59:19,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206324700] [2023-11-29 21:59:19,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:59:19,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:59:19,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:59:19,499 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 21:59:19,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:59:19,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206324700] [2023-11-29 21:59:19,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206324700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:59:19,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 21:59:19,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 21:59:19,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669539191] [2023-11-29 21:59:19,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:59:19,500 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 21:59:19,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:59:19,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 21:59:19,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 21:59:19,502 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 88 [2023-11-29 21:59:19,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 225 transitions, 2271 flow. Second operand has 7 states, 7 states have (on average 63.714285714285715) internal successors, (446), 7 states have internal predecessors, (446), 0 states have call successors, (0), 0 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 21:59:19,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:59:19,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 88 [2023-11-29 21:59:19,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:59:19,725 INFO L124 PetriNetUnfolderBase]: 238/755 cut-off events. [2023-11-29 21:59:19,726 INFO L125 PetriNetUnfolderBase]: For 1304/1465 co-relation queries the response was YES. [2023-11-29 21:59:19,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3983 conditions, 755 events. 238/755 cut-off events. For 1304/1465 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4390 event pairs, 5 based on Foata normal form. 35/727 useless extension candidates. Maximal degree in co-relation 3531. Up to 465 conditions per place. [2023-11-29 21:59:19,732 INFO L140 encePairwiseOnDemand]: 77/88 looper letters, 149 selfloop transitions, 88 changer transitions 2/288 dead transitions. [2023-11-29 21:59:19,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 288 transitions, 3519 flow [2023-11-29 21:59:19,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 21:59:19,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 21:59:19,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 691 transitions. [2023-11-29 21:59:19,734 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7852272727272728 [2023-11-29 21:59:19,734 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 691 transitions. [2023-11-29 21:59:19,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 691 transitions. [2023-11-29 21:59:19,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:59:19,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 691 transitions. [2023-11-29 21:59:19,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 69.1) internal successors, (691), 10 states have internal predecessors, (691), 0 states have call successors, (0), 0 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 21:59:19,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 88.0) internal successors, (968), 11 states have internal predecessors, (968), 0 states have call successors, (0), 0 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 21:59:19,737 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 88.0) internal successors, (968), 11 states have internal predecessors, (968), 0 states have call successors, (0), 0 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 21:59:19,738 INFO L307 CegarLoopForPetriNet]: 78 programPoint places, 45 predicate places. [2023-11-29 21:59:19,738 INFO L500 AbstractCegarLoop]: Abstraction has has 123 places, 288 transitions, 3519 flow [2023-11-29 21:59:19,738 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.714285714285715) internal successors, (446), 7 states have internal predecessors, (446), 0 states have call successors, (0), 0 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 21:59:19,738 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:59:19,739 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] [2023-11-29 21:59:19,739 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 21:59:19,739 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 21:59:19,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:59:19,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1014805153, now seen corresponding path program 6 times [2023-11-29 21:59:19,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:59:19,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152149646] [2023-11-29 21:59:19,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:59:19,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:59:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:59:19,993 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 21:59:19,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:59:19,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152149646] [2023-11-29 21:59:19,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152149646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:59:19,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 21:59:19,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 21:59:19,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545252438] [2023-11-29 21:59:19,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:59:19,994 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 21:59:19,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:59:19,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 21:59:19,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 21:59:19,996 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 88 [2023-11-29 21:59:19,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 288 transitions, 3519 flow. Second operand has 7 states, 7 states have (on average 63.714285714285715) internal successors, (446), 7 states have internal predecessors, (446), 0 states have call successors, (0), 0 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 21:59:19,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:59:19,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 88 [2023-11-29 21:59:19,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:59:20,215 INFO L124 PetriNetUnfolderBase]: 246/773 cut-off events. [2023-11-29 21:59:20,216 INFO L125 PetriNetUnfolderBase]: For 1699/1868 co-relation queries the response was YES. [2023-11-29 21:59:20,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4645 conditions, 773 events. 246/773 cut-off events. For 1699/1868 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4503 event pairs, 3 based on Foata normal form. 46/756 useless extension candidates. Maximal degree in co-relation 3417. Up to 483 conditions per place. [2023-11-29 21:59:20,222 INFO L140 encePairwiseOnDemand]: 77/88 looper letters, 164 selfloop transitions, 103 changer transitions 2/318 dead transitions. [2023-11-29 21:59:20,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 318 transitions, 4481 flow [2023-11-29 21:59:20,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 21:59:20,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 21:59:20,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 630 transitions. [2023-11-29 21:59:20,224 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7954545454545454 [2023-11-29 21:59:20,224 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 630 transitions. [2023-11-29 21:59:20,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 630 transitions. [2023-11-29 21:59:20,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:59:20,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 630 transitions. [2023-11-29 21:59:20,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 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 21:59:20,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 88.0) internal successors, (880), 10 states have internal predecessors, (880), 0 states have call successors, (0), 0 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 21:59:20,226 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 88.0) internal successors, (880), 10 states have internal predecessors, (880), 0 states have call successors, (0), 0 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 21:59:20,227 INFO L307 CegarLoopForPetriNet]: 78 programPoint places, 53 predicate places. [2023-11-29 21:59:20,227 INFO L500 AbstractCegarLoop]: Abstraction has has 131 places, 318 transitions, 4481 flow [2023-11-29 21:59:20,227 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.714285714285715) internal successors, (446), 7 states have internal predecessors, (446), 0 states have call successors, (0), 0 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 21:59:20,227 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:59:20,227 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] [2023-11-29 21:59:20,228 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 21:59:20,228 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 21:59:20,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:59:20,228 INFO L85 PathProgramCache]: Analyzing trace with hash 953074403, now seen corresponding path program 7 times [2023-11-29 21:59:20,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:59:20,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390929879] [2023-11-29 21:59:20,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:59:20,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:59:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:59:20,429 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 21:59:20,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:59:20,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390929879] [2023-11-29 21:59:20,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390929879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:59:20,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 21:59:20,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 21:59:20,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922592085] [2023-11-29 21:59:20,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:59:20,430 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 21:59:20,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:59:20,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 21:59:20,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 21:59:20,432 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 88 [2023-11-29 21:59:20,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 318 transitions, 4481 flow. Second operand has 7 states, 7 states have (on average 63.714285714285715) internal successors, (446), 7 states have internal predecessors, (446), 0 states have call successors, (0), 0 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 21:59:20,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:59:20,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 88 [2023-11-29 21:59:20,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:59:20,724 INFO L124 PetriNetUnfolderBase]: 266/801 cut-off events. [2023-11-29 21:59:20,725 INFO L125 PetriNetUnfolderBase]: For 2043/2209 co-relation queries the response was YES. [2023-11-29 21:59:20,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5506 conditions, 801 events. 266/801 cut-off events. For 2043/2209 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4642 event pairs, 4 based on Foata normal form. 51/790 useless extension candidates. Maximal degree in co-relation 4491. Up to 498 conditions per place. [2023-11-29 21:59:20,732 INFO L140 encePairwiseOnDemand]: 76/88 looper letters, 169 selfloop transitions, 122 changer transitions 2/342 dead transitions. [2023-11-29 21:59:20,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 342 transitions, 5444 flow [2023-11-29 21:59:20,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 21:59:20,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 21:59:20,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 891 transitions. [2023-11-29 21:59:20,734 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7788461538461539 [2023-11-29 21:59:20,734 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 891 transitions. [2023-11-29 21:59:20,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 891 transitions. [2023-11-29 21:59:20,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:59:20,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 891 transitions. [2023-11-29 21:59:20,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 68.53846153846153) internal successors, (891), 13 states have internal predecessors, (891), 0 states have call successors, (0), 0 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 21:59:20,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 88.0) internal successors, (1232), 14 states have internal predecessors, (1232), 0 states have call successors, (0), 0 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 21:59:20,738 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 88.0) internal successors, (1232), 14 states have internal predecessors, (1232), 0 states have call successors, (0), 0 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 21:59:20,738 INFO L307 CegarLoopForPetriNet]: 78 programPoint places, 65 predicate places. [2023-11-29 21:59:20,738 INFO L500 AbstractCegarLoop]: Abstraction has has 143 places, 342 transitions, 5444 flow [2023-11-29 21:59:20,739 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.714285714285715) internal successors, (446), 7 states have internal predecessors, (446), 0 states have call successors, (0), 0 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 21:59:20,739 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:59:20,739 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] [2023-11-29 21:59:20,739 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 21:59:20,739 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 21:59:20,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:59:20,739 INFO L85 PathProgramCache]: Analyzing trace with hash 978635291, now seen corresponding path program 8 times [2023-11-29 21:59:20,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:59:20,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157795231] [2023-11-29 21:59:20,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:59:20,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:59:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:59:20,864 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 21:59:20,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:59:20,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157795231] [2023-11-29 21:59:20,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157795231] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:59:20,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 21:59:20,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 21:59:20,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113630734] [2023-11-29 21:59:20,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:59:20,865 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 21:59:20,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:59:20,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 21:59:20,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 21:59:20,866 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 88 [2023-11-29 21:59:20,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 342 transitions, 5444 flow. Second operand has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 0 states have call successors, (0), 0 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 21:59:20,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:59:20,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 88 [2023-11-29 21:59:20,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:59:21,050 INFO L124 PetriNetUnfolderBase]: 342/956 cut-off events. [2023-11-29 21:59:21,050 INFO L125 PetriNetUnfolderBase]: For 2230/2451 co-relation queries the response was YES. [2023-11-29 21:59:21,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7571 conditions, 956 events. 342/956 cut-off events. For 2230/2451 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 5694 event pairs, 1 based on Foata normal form. 17/904 useless extension candidates. Maximal degree in co-relation 6229. Up to 615 conditions per place. [2023-11-29 21:59:21,059 INFO L140 encePairwiseOnDemand]: 81/88 looper letters, 309 selfloop transitions, 141 changer transitions 2/504 dead transitions. [2023-11-29 21:59:21,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 504 transitions, 9216 flow [2023-11-29 21:59:21,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 21:59:21,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-29 21:59:21,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 496 transitions. [2023-11-29 21:59:21,061 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8051948051948052 [2023-11-29 21:59:21,061 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 496 transitions. [2023-11-29 21:59:21,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 496 transitions. [2023-11-29 21:59:21,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:59:21,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 496 transitions. [2023-11-29 21:59:21,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 70.85714285714286) internal successors, (496), 7 states have internal predecessors, (496), 0 states have call successors, (0), 0 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 21:59:21,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 88.0) internal successors, (704), 8 states have internal predecessors, (704), 0 states have call successors, (0), 0 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 21:59:21,063 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 88.0) internal successors, (704), 8 states have internal predecessors, (704), 0 states have call successors, (0), 0 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 21:59:21,064 INFO L307 CegarLoopForPetriNet]: 78 programPoint places, 71 predicate places. [2023-11-29 21:59:21,064 INFO L500 AbstractCegarLoop]: Abstraction has has 149 places, 504 transitions, 9216 flow [2023-11-29 21:59:21,064 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 0 states have call successors, (0), 0 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 21:59:21,064 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:59:21,064 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] [2023-11-29 21:59:21,064 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 21:59:21,065 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 21:59:21,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:59:21,065 INFO L85 PathProgramCache]: Analyzing trace with hash 405429943, now seen corresponding path program 9 times [2023-11-29 21:59:21,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:59:21,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108171208] [2023-11-29 21:59:21,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:59:21,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:59:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:59:21,531 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 21:59:21,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:59:21,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108171208] [2023-11-29 21:59:21,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108171208] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 21:59:21,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325676388] [2023-11-29 21:59:21,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 21:59:21,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 21:59:21,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 21:59:21,533 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 21:59:21,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 21:59:21,608 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 21:59:21,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 21:59:21,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 21:59:21,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 21:59:22,149 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 21:59:22,149 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 21:59:22,626 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 21:59:22,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325676388] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 21:59:22,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-29 21:59:22,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [11, 15] total 29 [2023-11-29 21:59:22,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366066525] [2023-11-29 21:59:22,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:59:22,627 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 21:59:22,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:59:22,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 21:59:22,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=631, Unknown=0, NotChecked=0, Total=812 [2023-11-29 21:59:22,628 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 88 [2023-11-29 21:59:22,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 504 transitions, 9216 flow. Second operand has 14 states, 14 states have (on average 47.357142857142854) internal successors, (663), 14 states have internal predecessors, (663), 0 states have call successors, (0), 0 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 21:59:22,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:59:22,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 88 [2023-11-29 21:59:22,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:59:24,340 INFO L124 PetriNetUnfolderBase]: 1073/3170 cut-off events. [2023-11-29 21:59:24,340 INFO L125 PetriNetUnfolderBase]: For 9637/10494 co-relation queries the response was YES. [2023-11-29 21:59:24,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26977 conditions, 3170 events. 1073/3170 cut-off events. For 9637/10494 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 27667 event pairs, 2 based on Foata normal form. 35/2910 useless extension candidates. Maximal degree in co-relation 25353. Up to 2340 conditions per place. [2023-11-29 21:59:24,376 INFO L140 encePairwiseOnDemand]: 70/88 looper letters, 911 selfloop transitions, 743 changer transitions 208/1897 dead transitions. [2023-11-29 21:59:24,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 1897 transitions, 40341 flow [2023-11-29 21:59:24,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-11-29 21:59:24,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2023-11-29 21:59:24,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 2165 transitions. [2023-11-29 21:59:24,383 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5721458773784355 [2023-11-29 21:59:24,383 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 2165 transitions. [2023-11-29 21:59:24,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 2165 transitions. [2023-11-29 21:59:24,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:59:24,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 2165 transitions. [2023-11-29 21:59:24,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 50.348837209302324) internal successors, (2165), 43 states have internal predecessors, (2165), 0 states have call successors, (0), 0 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 21:59:24,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 88.0) internal successors, (3872), 44 states have internal predecessors, (3872), 0 states have call successors, (0), 0 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 21:59:24,394 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 88.0) internal successors, (3872), 44 states have internal predecessors, (3872), 0 states have call successors, (0), 0 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 21:59:24,394 INFO L307 CegarLoopForPetriNet]: 78 programPoint places, 113 predicate places. [2023-11-29 21:59:24,394 INFO L500 AbstractCegarLoop]: Abstraction has has 191 places, 1897 transitions, 40341 flow [2023-11-29 21:59:24,395 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 47.357142857142854) internal successors, (663), 14 states have internal predecessors, (663), 0 states have call successors, (0), 0 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 21:59:24,395 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:59:24,395 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] [2023-11-29 21:59:24,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 21:59:24,600 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 21:59:24,600 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 21:59:24,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:59:24,601 INFO L85 PathProgramCache]: Analyzing trace with hash -2126843783, now seen corresponding path program 1 times [2023-11-29 21:59:24,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:59:24,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357659771] [2023-11-29 21:59:24,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:59:24,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:59:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:59:25,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 21:59:25,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:59:25,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357659771] [2023-11-29 21:59:25,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357659771] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 21:59:25,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940013956] [2023-11-29 21:59:25,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:59:25,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 21:59:25,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 21:59:25,514 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 21:59:25,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 21:59:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:59:25,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 21:59:25,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 21:59:26,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 21:59:26,189 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 21:59:27,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 21:59:27,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940013956] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 21:59:27,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 21:59:27,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16, 16] total 32 [2023-11-29 21:59:27,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158373281] [2023-11-29 21:59:27,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 21:59:27,498 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-29 21:59:27,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:59:27,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-29 21:59:27,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=795, Unknown=0, NotChecked=0, Total=992 [2023-11-29 21:59:27,500 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 88 [2023-11-29 21:59:27,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 1897 transitions, 40341 flow. Second operand has 32 states, 32 states have (on average 49.40625) internal successors, (1581), 32 states have internal predecessors, (1581), 0 states have call successors, (0), 0 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 21:59:27,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:59:27,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 88 [2023-11-29 21:59:27,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:59:37,488 INFO L124 PetriNetUnfolderBase]: 2392/7140 cut-off events. [2023-11-29 21:59:37,491 INFO L125 PetriNetUnfolderBase]: For 30179/31882 co-relation queries the response was YES. [2023-11-29 21:59:37,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65033 conditions, 7140 events. 2392/7140 cut-off events. For 30179/31882 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 73841 event pairs, 7 based on Foata normal form. 90/6604 useless extension candidates. Maximal degree in co-relation 48922. Up to 5183 conditions per place. [2023-11-29 21:59:37,549 INFO L140 encePairwiseOnDemand]: 66/88 looper letters, 1479 selfloop transitions, 1444 changer transitions 843/4045 dead transitions. [2023-11-29 21:59:37,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 4045 transitions, 93901 flow [2023-11-29 21:59:37,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2023-11-29 21:59:37,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2023-11-29 21:59:37,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 5729 transitions. [2023-11-29 21:59:37,558 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5761263073209976 [2023-11-29 21:59:37,558 INFO L72 ComplementDD]: Start complementDD. Operand 113 states and 5729 transitions. [2023-11-29 21:59:37,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 113 states and 5729 transitions. [2023-11-29 21:59:37,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:59:37,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 113 states and 5729 transitions. [2023-11-29 21:59:37,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 114 states, 113 states have (on average 50.69911504424779) internal successors, (5729), 113 states have internal predecessors, (5729), 0 states have call successors, (0), 0 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 21:59:37,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 114 states, 114 states have (on average 88.0) internal successors, (10032), 114 states have internal predecessors, (10032), 0 states have call successors, (0), 0 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 21:59:37,699 INFO L81 ComplementDD]: Finished complementDD. Result has 114 states, 114 states have (on average 88.0) internal successors, (10032), 114 states have internal predecessors, (10032), 0 states have call successors, (0), 0 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 21:59:37,700 INFO L307 CegarLoopForPetriNet]: 78 programPoint places, 225 predicate places. [2023-11-29 21:59:37,700 INFO L500 AbstractCegarLoop]: Abstraction has has 303 places, 4045 transitions, 93901 flow [2023-11-29 21:59:37,700 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 49.40625) internal successors, (1581), 32 states have internal predecessors, (1581), 0 states have call successors, (0), 0 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 21:59:37,700 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:59:37,701 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:59:37,705 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 21:59:37,903 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 21:59:37,905 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 21:59:37,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:59:37,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1272377715, now seen corresponding path program 2 times [2023-11-29 21:59:37,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:59:37,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934425694] [2023-11-29 21:59:37,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:59:37,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:59:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:59:39,511 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 21:59:39,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:59:39,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934425694] [2023-11-29 21:59:39,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934425694] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 21:59:39,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867874165] [2023-11-29 21:59:39,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 21:59:39,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 21:59:39,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 21:59:39,513 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 21:59:39,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 21:59:39,650 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 21:59:39,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 21:59:39,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 21:59:39,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 21:59:40,342 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 21:59:40,342 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 21:59:41,692 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 21:59:41,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867874165] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 21:59:41,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 21:59:41,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 40 [2023-11-29 21:59:41,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333026768] [2023-11-29 21:59:41,693 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 21:59:41,694 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-11-29 21:59:41,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:59:41,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-11-29 21:59:41,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=1329, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 21:59:41,696 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 88 [2023-11-29 21:59:41,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 4045 transitions, 93901 flow. Second operand has 40 states, 40 states have (on average 47.4) internal successors, (1896), 40 states have internal predecessors, (1896), 0 states have call successors, (0), 0 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 21:59:41,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:59:41,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 88 [2023-11-29 21:59:41,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 22:00:02,361 INFO L124 PetriNetUnfolderBase]: 4248/12941 cut-off events. [2023-11-29 22:00:02,362 INFO L125 PetriNetUnfolderBase]: For 66616/70548 co-relation queries the response was YES. [2023-11-29 22:00:02,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126621 conditions, 12941 events. 4248/12941 cut-off events. For 66616/70548 co-relation queries the response was YES. Maximal size of possible extension queue 832. Compared 150854 event pairs, 8 based on Foata normal form. 304/12091 useless extension candidates. Maximal degree in co-relation 94146. Up to 9448 conditions per place. [2023-11-29 22:00:02,496 INFO L140 encePairwiseOnDemand]: 61/88 looper letters, 3064 selfloop transitions, 2659 changer transitions 1916/7674 dead transitions. [2023-11-29 22:00:02,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 7674 transitions, 193165 flow [2023-11-29 22:00:02,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2023-11-29 22:00:02,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2023-11-29 22:00:02,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 7187 transitions. [2023-11-29 22:00:02,510 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5555813234384663 [2023-11-29 22:00:02,510 INFO L72 ComplementDD]: Start complementDD. Operand 147 states and 7187 transitions. [2023-11-29 22:00:02,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 147 states and 7187 transitions. [2023-11-29 22:00:02,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 22:00:02,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 147 states and 7187 transitions. [2023-11-29 22:00:02,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 148 states, 147 states have (on average 48.89115646258504) internal successors, (7187), 147 states have internal predecessors, (7187), 0 states have call successors, (0), 0 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 22:00:02,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 148 states, 148 states have (on average 88.0) internal successors, (13024), 148 states have internal predecessors, (13024), 0 states have call successors, (0), 0 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 22:00:02,545 INFO L81 ComplementDD]: Finished complementDD. Result has 148 states, 148 states have (on average 88.0) internal successors, (13024), 148 states have internal predecessors, (13024), 0 states have call successors, (0), 0 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 22:00:02,545 INFO L307 CegarLoopForPetriNet]: 78 programPoint places, 371 predicate places. [2023-11-29 22:00:02,546 INFO L500 AbstractCegarLoop]: Abstraction has has 449 places, 7674 transitions, 193165 flow [2023-11-29 22:00:02,546 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 47.4) internal successors, (1896), 40 states have internal predecessors, (1896), 0 states have call successors, (0), 0 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 22:00:02,546 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 22:00:02,546 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:00:02,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 22:00:02,754 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 22:00:02,755 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 22:00:02,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 22:00:02,755 INFO L85 PathProgramCache]: Analyzing trace with hash -2099315009, now seen corresponding path program 3 times [2023-11-29 22:00:02,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 22:00:02,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337875128] [2023-11-29 22:00:02,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 22:00:02,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 22:00:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 22:00:03,986 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 22:00:03,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 22:00:03,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337875128] [2023-11-29 22:00:03,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337875128] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 22:00:03,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979851792] [2023-11-29 22:00:03,986 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 22:00:03,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 22:00:03,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 22:00:03,987 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 22:00:03,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 22:00:04,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 22:00:04,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 22:00:04,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 22:00:04,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 22:00:05,460 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 22:00:05,461 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 22:00:10,646 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 22:00:10,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979851792] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 22:00:10,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 22:00:10,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 17] total 36 [2023-11-29 22:00:10,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069684523] [2023-11-29 22:00:10,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 22:00:10,647 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 22:00:10,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 22:00:10,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 22:00:10,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=1057, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 22:00:10,649 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 88 [2023-11-29 22:00:10,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 7674 transitions, 193165 flow. Second operand has 36 states, 36 states have (on average 49.27777777777778) internal successors, (1774), 36 states have internal predecessors, (1774), 0 states have call successors, (0), 0 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 22:00:10,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 22:00:10,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 88 [2023-11-29 22:00:10,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 22:00:53,225 INFO L124 PetriNetUnfolderBase]: 5408/16320 cut-off events. [2023-11-29 22:00:53,225 INFO L125 PetriNetUnfolderBase]: For 100839/105702 co-relation queries the response was YES. [2023-11-29 22:00:53,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171172 conditions, 16320 events. 5408/16320 cut-off events. For 100839/105702 co-relation queries the response was YES. Maximal size of possible extension queue 1044. Compared 195883 event pairs, 10 based on Foata normal form. 274/15129 useless extension candidates. Maximal degree in co-relation 161017. Up to 12107 conditions per place. [2023-11-29 22:00:53,361 INFO L140 encePairwiseOnDemand]: 65/88 looper letters, 3432 selfloop transitions, 2918 changer transitions 2468/9520 dead transitions. [2023-11-29 22:00:53,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 9520 transitions, 257712 flow [2023-11-29 22:00:53,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-11-29 22:00:53,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2023-11-29 22:00:53,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 4746 transitions. [2023-11-29 22:00:53,366 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5737427466150871 [2023-11-29 22:00:53,366 INFO L72 ComplementDD]: Start complementDD. Operand 94 states and 4746 transitions. [2023-11-29 22:00:53,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 94 states and 4746 transitions. [2023-11-29 22:00:53,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 22:00:53,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 94 states and 4746 transitions. [2023-11-29 22:00:53,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 95 states, 94 states have (on average 50.48936170212766) internal successors, (4746), 94 states have internal predecessors, (4746), 0 states have call successors, (0), 0 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 22:00:53,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 95 states, 95 states have (on average 88.0) internal successors, (8360), 95 states have internal predecessors, (8360), 0 states have call successors, (0), 0 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 22:00:53,383 INFO L81 ComplementDD]: Finished complementDD. Result has 95 states, 95 states have (on average 88.0) internal successors, (8360), 95 states have internal predecessors, (8360), 0 states have call successors, (0), 0 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 22:00:53,384 INFO L307 CegarLoopForPetriNet]: 78 programPoint places, 464 predicate places. [2023-11-29 22:00:53,384 INFO L500 AbstractCegarLoop]: Abstraction has has 542 places, 9520 transitions, 257712 flow [2023-11-29 22:00:53,384 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 49.27777777777778) internal successors, (1774), 36 states have internal predecessors, (1774), 0 states have call successors, (0), 0 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 22:00:53,384 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 22:00:53,384 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:00:53,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 22:00:53,590 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 22:00:53,591 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 22:00:53,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 22:00:53,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1681579633, now seen corresponding path program 10 times [2023-11-29 22:00:53,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 22:00:53,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481464536] [2023-11-29 22:00:53,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 22:00:53,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 22:00:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 22:00:54,113 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 22:00:54,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 22:00:54,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481464536] [2023-11-29 22:00:54,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481464536] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 22:00:54,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174524379] [2023-11-29 22:00:54,114 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 22:00:54,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 22:00:54,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 22:00:54,127 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 22:00:54,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 22:00:54,249 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 22:00:54,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 22:00:54,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-29 22:00:54,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 22:00:55,118 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 22:00:55,118 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 22:00:55,787 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 22:00:55,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174524379] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 22:00:55,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 22:00:55,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 21, 19] total 45 [2023-11-29 22:00:55,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857128246] [2023-11-29 22:00:55,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 22:00:55,788 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-11-29 22:00:55,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 22:00:55,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-11-29 22:00:55,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=359, Invalid=1621, Unknown=0, NotChecked=0, Total=1980 [2023-11-29 22:00:55,791 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 88 [2023-11-29 22:00:55,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 9520 transitions, 257712 flow. Second operand has 45 states, 45 states have (on average 47.266666666666666) internal successors, (2127), 45 states have internal predecessors, (2127), 0 states have call successors, (0), 0 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 22:00:55,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 22:00:55,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 88 [2023-11-29 22:00:55,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 22:01:58,317 INFO L124 PetriNetUnfolderBase]: 7556/22456 cut-off events. [2023-11-29 22:01:58,318 INFO L125 PetriNetUnfolderBase]: For 146055/153748 co-relation queries the response was YES. [2023-11-29 22:01:58,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253551 conditions, 22456 events. 7556/22456 cut-off events. For 146055/153748 co-relation queries the response was YES. Maximal size of possible extension queue 1402. Compared 282201 event pairs, 12 based on Foata normal form. 296/20644 useless extension candidates. Maximal degree in co-relation 238972. Up to 16934 conditions per place. [2023-11-29 22:01:58,512 INFO L140 encePairwiseOnDemand]: 62/88 looper letters, 4082 selfloop transitions, 6000 changer transitions 3676/13793 dead transitions. [2023-11-29 22:01:58,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 695 places, 13793 transitions, 399573 flow [2023-11-29 22:01:58,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2023-11-29 22:01:58,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2023-11-29 22:01:58,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 7462 transitions. [2023-11-29 22:01:58,518 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5506198347107438 [2023-11-29 22:01:58,518 INFO L72 ComplementDD]: Start complementDD. Operand 154 states and 7462 transitions. [2023-11-29 22:01:58,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 154 states and 7462 transitions. [2023-11-29 22:01:58,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 22:01:58,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 154 states and 7462 transitions. [2023-11-29 22:01:58,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 155 states, 154 states have (on average 48.45454545454545) internal successors, (7462), 154 states have internal predecessors, (7462), 0 states have call successors, (0), 0 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 22:01:58,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 155 states, 155 states have (on average 88.0) internal successors, (13640), 155 states have internal predecessors, (13640), 0 states have call successors, (0), 0 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 22:01:58,535 INFO L81 ComplementDD]: Finished complementDD. Result has 155 states, 155 states have (on average 88.0) internal successors, (13640), 155 states have internal predecessors, (13640), 0 states have call successors, (0), 0 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 22:01:58,535 INFO L307 CegarLoopForPetriNet]: 78 programPoint places, 617 predicate places. [2023-11-29 22:01:58,535 INFO L500 AbstractCegarLoop]: Abstraction has has 695 places, 13793 transitions, 399573 flow [2023-11-29 22:01:58,535 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 47.266666666666666) internal successors, (2127), 45 states have internal predecessors, (2127), 0 states have call successors, (0), 0 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 22:01:58,535 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 22:01:58,536 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:01:58,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-29 22:01:58,741 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 22:01:58,741 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 22:01:58,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 22:01:58,741 INFO L85 PathProgramCache]: Analyzing trace with hash 620053033, now seen corresponding path program 4 times [2023-11-29 22:01:58,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 22:01:58,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115157868] [2023-11-29 22:01:58,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 22:01:58,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 22:01:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 22:02:15,037 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 22:02:15,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 22:02:15,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115157868] [2023-11-29 22:02:15,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115157868] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 22:02:15,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583875481] [2023-11-29 22:02:15,038 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 22:02:15,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 22:02:15,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 22:02:15,039 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 22:02:15,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 22:02:15,242 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 22:02:15,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 22:02:15,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 22:02:15,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 22:02:17,443 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 22:02:17,443 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 22:02:32,008 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 22:02:32,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583875481] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 22:02:32,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 22:02:32,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 20, 19] total 42 [2023-11-29 22:02:32,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451968998] [2023-11-29 22:02:32,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 22:02:32,010 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-11-29 22:02:32,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 22:02:32,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-11-29 22:02:32,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1423, Unknown=1, NotChecked=0, Total=1722 [2023-11-29 22:02:32,015 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 88 [2023-11-29 22:02:32,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 695 places, 13793 transitions, 399573 flow. Second operand has 42 states, 42 states have (on average 47.5) internal successors, (1995), 42 states have internal predecessors, (1995), 0 states have call successors, (0), 0 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 22:02:32,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 22:02:32,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 88 [2023-11-29 22:02:32,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 22:04:19,639 INFO L124 PetriNetUnfolderBase]: 9380/28149 cut-off events. [2023-11-29 22:04:19,639 INFO L125 PetriNetUnfolderBase]: For 213301/224496 co-relation queries the response was YES. [2023-11-29 22:04:19,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339036 conditions, 28149 events. 9380/28149 cut-off events. For 213301/224496 co-relation queries the response was YES. Maximal size of possible extension queue 1783. Compared 367906 event pairs, 18 based on Foata normal form. 483/26011 useless extension candidates. Maximal degree in co-relation 254643. Up to 21091 conditions per place. [2023-11-29 22:04:20,018 INFO L140 encePairwiseOnDemand]: 62/88 looper letters, 5847 selfloop transitions, 7072 changer transitions 4965/17919 dead transitions. [2023-11-29 22:04:20,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 840 places, 17919 transitions, 553900 flow [2023-11-29 22:04:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2023-11-29 22:04:20,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2023-11-29 22:04:20,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 7164 transitions. [2023-11-29 22:04:20,024 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5575965130759651 [2023-11-29 22:04:20,024 INFO L72 ComplementDD]: Start complementDD. Operand 146 states and 7164 transitions. [2023-11-29 22:04:20,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 146 states and 7164 transitions. [2023-11-29 22:04:20,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 22:04:20,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 146 states and 7164 transitions. [2023-11-29 22:04:20,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 147 states, 146 states have (on average 49.06849315068493) internal successors, (7164), 146 states have internal predecessors, (7164), 0 states have call successors, (0), 0 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 22:04:20,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 147 states, 147 states have (on average 88.0) internal successors, (12936), 147 states have internal predecessors, (12936), 0 states have call successors, (0), 0 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 22:04:20,040 INFO L81 ComplementDD]: Finished complementDD. Result has 147 states, 147 states have (on average 88.0) internal successors, (12936), 147 states have internal predecessors, (12936), 0 states have call successors, (0), 0 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 22:04:20,041 INFO L307 CegarLoopForPetriNet]: 78 programPoint places, 762 predicate places. [2023-11-29 22:04:20,041 INFO L500 AbstractCegarLoop]: Abstraction has has 840 places, 17919 transitions, 553900 flow [2023-11-29 22:04:20,042 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 47.5) internal successors, (1995), 42 states have internal predecessors, (1995), 0 states have call successors, (0), 0 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 22:04:20,042 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 22:04:20,042 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:04:20,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 22:04:20,247 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 22:04:20,247 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 22:04:20,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 22:04:20,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1383864735, now seen corresponding path program 5 times [2023-11-29 22:04:20,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 22:04:20,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189856639] [2023-11-29 22:04:20,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 22:04:20,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 22:04:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 22:04:21,436 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 22:04:21,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 22:04:21,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189856639] [2023-11-29 22:04:21,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189856639] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 22:04:21,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932436941] [2023-11-29 22:04:21,438 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 22:04:21,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 22:04:21,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 22:04:21,439 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 22:04:21,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 22:04:21,547 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-11-29 22:04:21,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 22:04:21,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-29 22:04:21,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 22:04:22,456 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 22:04:22,456 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 22:04:24,641 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 22:04:24,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932436941] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 22:04:24,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 22:04:24,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 23, 21] total 52 [2023-11-29 22:04:24,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118334524] [2023-11-29 22:04:24,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 22:04:24,641 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-11-29 22:04:24,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 22:04:24,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-11-29 22:04:24,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=492, Invalid=2160, Unknown=0, NotChecked=0, Total=2652 [2023-11-29 22:04:24,644 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 88 [2023-11-29 22:04:24,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 840 places, 17919 transitions, 553900 flow. Second operand has 52 states, 52 states have (on average 47.01923076923077) internal successors, (2445), 52 states have internal predecessors, (2445), 0 states have call successors, (0), 0 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 22:04:24,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 22:04:24,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 88 [2023-11-29 22:04:24,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 22:07:52,254 INFO L124 PetriNetUnfolderBase]: 10512/31868 cut-off events. [2023-11-29 22:07:52,254 INFO L125 PetriNetUnfolderBase]: For 272958/286893 co-relation queries the response was YES. [2023-11-29 22:07:52,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407377 conditions, 31868 events. 10512/31868 cut-off events. For 272958/286893 co-relation queries the response was YES. Maximal size of possible extension queue 2037. Compared 425697 event pairs, 0 based on Foata normal form. 767/29702 useless extension candidates. Maximal degree in co-relation 321730. Up to 23856 conditions per place. [2023-11-29 22:07:52,557 INFO L140 encePairwiseOnDemand]: 61/88 looper letters, 5346 selfloop transitions, 9269 changer transitions 5948/20598 dead transitions. [2023-11-29 22:07:52,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1051 places, 20598 transitions, 677224 flow [2023-11-29 22:07:52,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2023-11-29 22:07:52,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2023-11-29 22:07:52,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 10267 transitions. [2023-11-29 22:07:52,593 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.550332332761578 [2023-11-29 22:07:52,593 INFO L72 ComplementDD]: Start complementDD. Operand 212 states and 10267 transitions. [2023-11-29 22:07:52,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 212 states and 10267 transitions. [2023-11-29 22:07:52,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 22:07:52,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 212 states and 10267 transitions. [2023-11-29 22:07:52,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 213 states, 212 states have (on average 48.429245283018865) internal successors, (10267), 212 states have internal predecessors, (10267), 0 states have call successors, (0), 0 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 22:07:52,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 213 states, 213 states have (on average 88.0) internal successors, (18744), 213 states have internal predecessors, (18744), 0 states have call successors, (0), 0 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 22:07:52,613 INFO L81 ComplementDD]: Finished complementDD. Result has 213 states, 213 states have (on average 88.0) internal successors, (18744), 213 states have internal predecessors, (18744), 0 states have call successors, (0), 0 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 22:07:52,615 INFO L307 CegarLoopForPetriNet]: 78 programPoint places, 973 predicate places. [2023-11-29 22:07:52,615 INFO L500 AbstractCegarLoop]: Abstraction has has 1051 places, 20598 transitions, 677224 flow [2023-11-29 22:07:52,616 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 47.01923076923077) internal successors, (2445), 52 states have internal predecessors, (2445), 0 states have call successors, (0), 0 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 22:07:52,616 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 22:07:52,616 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:07:52,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-29 22:07:52,821 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 22:07:52,821 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 22:07:52,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 22:07:52,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1139875837, now seen corresponding path program 6 times [2023-11-29 22:07:52,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 22:07:52,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472009244] [2023-11-29 22:07:52,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 22:07:52,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 22:07:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 22:07:53,707 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 22:07:53,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 22:07:53,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472009244] [2023-11-29 22:07:53,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472009244] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 22:07:53,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286848529] [2023-11-29 22:07:53,707 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 22:07:53,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 22:07:53,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 22:07:53,708 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 22:07:53,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 22:07:53,861 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2023-11-29 22:07:53,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 22:07:53,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-29 22:07:53,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 22:07:55,260 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 22:07:55,260 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 22:07:57,766 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 22:07:57,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286848529] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 22:07:57,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 22:07:57,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 23, 22] total 51 [2023-11-29 22:07:57,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800469840] [2023-11-29 22:07:57,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 22:07:57,767 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-11-29 22:07:57,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 22:07:57,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-11-29 22:07:57,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=2137, Unknown=0, NotChecked=0, Total=2550 [2023-11-29 22:07:57,768 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 88 [2023-11-29 22:07:57,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1051 places, 20598 transitions, 677224 flow. Second operand has 51 states, 51 states have (on average 47.0) internal successors, (2397), 51 states have internal predecessors, (2397), 0 states have call successors, (0), 0 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 22:07:57,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 22:07:57,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 88 [2023-11-29 22:07:57,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 22:12:12,767 INFO L124 PetriNetUnfolderBase]: 12065/37623 cut-off events. [2023-11-29 22:12:12,768 INFO L125 PetriNetUnfolderBase]: For 381317/397920 co-relation queries the response was YES. [2023-11-29 22:12:12,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 507956 conditions, 37623 events. 12065/37623 cut-off events. For 381317/397920 co-relation queries the response was YES. Maximal size of possible extension queue 2485. Compared 522690 event pairs, 0 based on Foata normal form. 1272/35453 useless extension candidates. Maximal degree in co-relation 402349. Up to 28048 conditions per place. [2023-11-29 22:12:13,175 INFO L140 encePairwiseOnDemand]: 60/88 looper letters, 6529 selfloop transitions, 10173 changer transitions 7660/24397 dead transitions. [2023-11-29 22:12:13,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1309 places, 24397 transitions, 847319 flow [2023-11-29 22:12:13,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 259 states. [2023-11-29 22:12:13,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2023-11-29 22:12:13,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 12493 transitions. [2023-11-29 22:12:13,183 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5481309231309232 [2023-11-29 22:12:13,183 INFO L72 ComplementDD]: Start complementDD. Operand 259 states and 12493 transitions. [2023-11-29 22:12:13,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 259 states and 12493 transitions. [2023-11-29 22:12:13,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 22:12:13,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 259 states and 12493 transitions. [2023-11-29 22:12:13,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 260 states, 259 states have (on average 48.23552123552123) internal successors, (12493), 259 states have internal predecessors, (12493), 0 states have call successors, (0), 0 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 22:12:13,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 260 states, 260 states have (on average 88.0) internal successors, (22880), 260 states have internal predecessors, (22880), 0 states have call successors, (0), 0 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 22:12:13,211 INFO L81 ComplementDD]: Finished complementDD. Result has 260 states, 260 states have (on average 88.0) internal successors, (22880), 260 states have internal predecessors, (22880), 0 states have call successors, (0), 0 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 22:12:13,211 INFO L307 CegarLoopForPetriNet]: 78 programPoint places, 1231 predicate places. [2023-11-29 22:12:13,212 INFO L500 AbstractCegarLoop]: Abstraction has has 1309 places, 24397 transitions, 847319 flow [2023-11-29 22:12:13,212 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 47.0) internal successors, (2397), 51 states have internal predecessors, (2397), 0 states have call successors, (0), 0 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 22:12:13,212 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 22:12:13,212 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:12:13,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-29 22:12:13,417 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 22:12:13,418 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 22:12:13,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 22:12:13,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1479402162, now seen corresponding path program 7 times [2023-11-29 22:12:13,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 22:12:13,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322641164] [2023-11-29 22:12:13,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 22:12:13,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 22:12:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 22:12:14,654 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 22:12:14,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 22:12:14,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322641164] [2023-11-29 22:12:14,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322641164] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 22:12:14,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396260437] [2023-11-29 22:12:14,654 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 22:12:14,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 22:12:14,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 22:12:14,656 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 22:12:14,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 22:12:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 22:12:14,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-29 22:12:14,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 22:12:15,940 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 22:12:15,941 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 22:12:17,871 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 22:12:17,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396260437] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 22:12:17,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 22:12:17,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 23, 20] total 53 [2023-11-29 22:12:17,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462334411] [2023-11-29 22:12:17,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 22:12:17,873 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2023-11-29 22:12:17,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 22:12:17,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2023-11-29 22:12:17,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=410, Invalid=2346, Unknown=0, NotChecked=0, Total=2756 [2023-11-29 22:12:17,876 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 88 [2023-11-29 22:12:17,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1309 places, 24397 transitions, 847319 flow. Second operand has 53 states, 53 states have (on average 47.094339622641506) internal successors, (2496), 53 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 22:12:17,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 22:12:17,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 88 [2023-11-29 22:12:17,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-11-29 22:13:21,326 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-29 22:13:21,326 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 22:13:21,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2023-11-29 22:13:21,333 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-29 22:13:21,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 22:13:21,534 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 22:13:21,534 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (53states, 45/88 universal loopers) in iteration 18,while PetriNetUnfolder was constructing finite prefix that currently has 83996 conditions, 5114 events (1704/5113 cut-off events. For 36292/38765 co-relation queries the response was YES. Maximal size of possible extension queue 1450. Compared 61942 event pairs, 0 based on Foata normal form. 142/6008 useless extension candidates. Maximal degree in co-relation 83023. Up to 3778 conditions per place.). [2023-11-29 22:13:21,536 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-29 22:13:21,536 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-29 22:13:21,536 INFO L457 BasicCegarLoop]: Path program histogram: [10, 7, 1] [2023-11-29 22:13:21,538 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 22:13:21,538 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 22:13:21,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:13:21 BasicIcfg [2023-11-29 22:13:21,541 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 22:13:21,542 INFO L158 Benchmark]: Toolchain (without parser) took 846238.11ms. Allocated memory was 450.9MB in the beginning and 3.1GB in the end (delta: 2.6GB). Free memory was 413.1MB in the beginning and 706.1MB in the end (delta: -293.0MB). Peak memory consumption was 2.3GB. Max. memory is 16.0GB. [2023-11-29 22:13:21,542 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 360.7MB. Free memory is still 316.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-29 22:13:21,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.30ms. Allocated memory is still 450.9MB. Free memory was 413.1MB in the beginning and 401.1MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-11-29 22:13:21,542 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.39ms. Allocated memory is still 450.9MB. Free memory was 401.1MB in the beginning and 399.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 22:13:21,542 INFO L158 Benchmark]: Boogie Preprocessor took 30.67ms. Allocated memory is still 450.9MB. Free memory was 399.7MB in the beginning and 398.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-29 22:13:21,542 INFO L158 Benchmark]: RCFGBuilder took 374.82ms. Allocated memory is still 450.9MB. Free memory was 398.4MB in the beginning and 381.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-11-29 22:13:21,543 INFO L158 Benchmark]: TraceAbstraction took 845589.45ms. Allocated memory was 450.9MB in the beginning and 3.1GB in the end (delta: 2.6GB). Free memory was 380.9MB in the beginning and 706.1MB in the end (delta: -325.2MB). Peak memory consumption was 2.3GB. Max. memory is 16.0GB. [2023-11-29 22:13:21,543 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 360.7MB. Free memory is still 316.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 206.30ms. Allocated memory is still 450.9MB. Free memory was 413.1MB in the beginning and 401.1MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 32.39ms. Allocated memory is still 450.9MB. Free memory was 401.1MB in the beginning and 399.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 30.67ms. Allocated memory is still 450.9MB. Free memory was 399.7MB in the beginning and 398.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 374.82ms. Allocated memory is still 450.9MB. Free memory was 398.4MB in the beginning and 381.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 845589.45ms. Allocated memory was 450.9MB in the beginning and 3.1GB in the end (delta: 2.6GB). Free memory was 380.9MB in the beginning and 706.1MB in the end (delta: -325.2MB). Peak memory consumption was 2.3GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (53states, 45/88 universal loopers) in iteration 18,while PetriNetUnfolder was constructing finite prefix that currently has 83996 conditions, 5114 events (1704/5113 cut-off events. For 36292/38765 co-relation queries the response was YES. Maximal size of possible extension queue 1450. Compared 61942 event pairs, 0 based on Foata normal form. 142/6008 useless extension candidates. Maximal degree in co-relation 83023. Up to 3778 conditions per place.). - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (53states, 45/88 universal loopers) in iteration 18,while PetriNetUnfolder was constructing finite prefix that currently has 83996 conditions, 5114 events (1704/5113 cut-off events. For 36292/38765 co-relation queries the response was YES. Maximal size of possible extension queue 1450. Compared 61942 event pairs, 0 based on Foata normal form. 142/6008 useless extension candidates. Maximal degree in co-relation 83023. Up to 3778 conditions per place.). - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (53states, 45/88 universal loopers) in iteration 18,while PetriNetUnfolder was constructing finite prefix that currently has 83996 conditions, 5114 events (1704/5113 cut-off events. For 36292/38765 co-relation queries the response was YES. Maximal size of possible extension queue 1450. Compared 61942 event pairs, 0 based on Foata normal form. 142/6008 useless extension candidates. Maximal degree in co-relation 83023. Up to 3778 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 102 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 845.5s, OverallIterations: 18, TraceHistogramMax: 3, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 775.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6515 SdHoareTripleChecker+Valid, 43.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6515 mSDsluCounter, 5408 SdHoareTripleChecker+Invalid, 40.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4948 mSDsCounter, 1097 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24479 IncrementalHoareTripleChecker+Invalid, 25576 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1097 mSolverCounterUnsat, 460 mSDtfsCounter, 24479 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2822 GetRequests, 1214 SyntacticMatches, 11 SemanticMatches, 1597 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111281 ImplicationChecksByTransitivity, 215.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=847319occurred in iteration=17, InterpolantAutomatonStates: 1248, 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, 1.1s SatisfiabilityAnalysisTime, 66.1s InterpolantComputationTime, 2020 NumberOfCodeBlocks, 2020 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 2655 ConstructedInterpolants, 0 QuantifiedInterpolants, 44573 SizeOfPredicates, 139 NumberOfNonLiveVariables, 1775 ConjunctsInSsa, 300 ConjunctsInUnsatCore, 37 InterpolantComputations, 10 PerfectInterpolantSequences, 11/249 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