/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/pthread/triangular-longest-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 14:50:40,344 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 14:50:40,381 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-12-09 14:50:40,398 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 14:50:40,398 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 14:50:40,399 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 14:50:40,399 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 14:50:40,399 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 14:50:40,400 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 14:50:40,405 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 14:50:40,405 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 14:50:40,406 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 14:50:40,406 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 14:50:40,406 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 14:50:40,406 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 14:50:40,406 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 14:50:40,407 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 14:50:40,407 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 14:50:40,407 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 14:50:40,407 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 14:50:40,407 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 14:50:40,408 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 14:50:40,408 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 14:50:40,408 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 14:50:40,408 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 14:50:40,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:50:40,409 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 14:50:40,409 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 14:50:40,409 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 14:50:40,409 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 14:50:40,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 14:50:40,410 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 14:50:40,410 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 14:50:40,410 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 14:50:40,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 14:50:40,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 14:50:40,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 14:50:40,620 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 14:50:40,620 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 14:50:40,621 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/triangular-longest-1.i [2023-12-09 14:50:41,585 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 14:50:41,824 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 14:50:41,825 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longest-1.i [2023-12-09 14:50:41,841 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02c3ad892/0e7de765064f4291809f3709bc47e39e/FLAGfa5a4888d [2023-12-09 14:50:41,851 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02c3ad892/0e7de765064f4291809f3709bc47e39e [2023-12-09 14:50:41,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 14:50:41,854 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 14:50:41,854 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 14:50:41,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 14:50:41,857 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 14:50:41,858 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:50:41" (1/1) ... [2023-12-09 14:50:41,859 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c486a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:50:41, skipping insertion in model container [2023-12-09 14:50:41,859 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:50:41" (1/1) ... [2023-12-09 14:50:41,888 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 14:50:42,155 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longest-1.i[30962,30975] [2023-12-09 14:50:42,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:50:42,170 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 14:50:42,214 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longest-1.i[30962,30975] [2023-12-09 14:50:42,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:50:42,242 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:50:42,243 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:50:42,248 INFO L206 MainTranslator]: Completed translation [2023-12-09 14:50:42,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:50:42 WrapperNode [2023-12-09 14:50:42,250 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 14:50:42,251 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 14:50:42,252 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 14:50:42,252 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 14:50:42,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:50:42" (1/1) ... [2023-12-09 14:50:42,281 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:50:42" (1/1) ... [2023-12-09 14:50:42,299 INFO L138 Inliner]: procedures = 169, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2023-12-09 14:50:42,300 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 14:50:42,300 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 14:50:42,301 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 14:50:42,301 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 14:50:42,308 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:50:42" (1/1) ... [2023-12-09 14:50:42,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:50:42" (1/1) ... [2023-12-09 14:50:42,313 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:50:42" (1/1) ... [2023-12-09 14:50:42,313 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:50:42" (1/1) ... [2023-12-09 14:50:42,322 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:50:42" (1/1) ... [2023-12-09 14:50:42,326 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:50:42" (1/1) ... [2023-12-09 14:50:42,327 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:50:42" (1/1) ... [2023-12-09 14:50:42,327 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:50:42" (1/1) ... [2023-12-09 14:50:42,329 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 14:50:42,330 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 14:50:42,330 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 14:50:42,330 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 14:50:42,330 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:50:42" (1/1) ... [2023-12-09 14:50:42,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:50:42,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:50:42,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-09 14:50:42,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-09 14:50:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-12-09 14:50:42,392 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-12-09 14:50:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-12-09 14:50:42,392 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-12-09 14:50:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 14:50:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 14:50:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 14:50:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 14:50:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 14:50:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 14:50:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 14:50:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 14:50:42,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 14:50:42,393 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 14:50:42,480 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 14:50:42,482 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 14:50:42,575 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 14:50:42,581 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 14:50:42,581 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-09 14:50:42,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:50:42 BoogieIcfgContainer [2023-12-09 14:50:42,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 14:50:42,583 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 14:50:42,583 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 14:50:42,585 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 14:50:42,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:50:41" (1/3) ... [2023-12-09 14:50:42,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ef55b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:50:42, skipping insertion in model container [2023-12-09 14:50:42,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:50:42" (2/3) ... [2023-12-09 14:50:42,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ef55b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:50:42, skipping insertion in model container [2023-12-09 14:50:42,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:50:42" (3/3) ... [2023-12-09 14:50:42,587 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longest-1.i [2023-12-09 14:50:42,598 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 14:50:42,598 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 14:50:42,598 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 14:50:42,646 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:50:42,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 68 transitions, 144 flow [2023-12-09 14:50:42,726 INFO L124 PetriNetUnfolderBase]: 5/66 cut-off events. [2023-12-09 14:50:42,726 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:50:42,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 66 events. 5/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2023-12-09 14:50:42,730 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 68 transitions, 144 flow [2023-12-09 14:50:42,733 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 66 transitions, 138 flow [2023-12-09 14:50:42,742 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:50:42,748 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;@7c3ac865, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:50:42,748 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-09 14:50:42,758 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:50:42,758 INFO L124 PetriNetUnfolderBase]: 4/54 cut-off events. [2023-12-09 14:50:42,758 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:50:42,758 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:50:42,758 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:50:42,759 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:50:42,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:50:42,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1937643587, now seen corresponding path program 1 times [2023-12-09 14:50:42,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:50:42,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549498625] [2023-12-09 14:50:42,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:50:42,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:50:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:50:43,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:50:43,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:50:43,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549498625] [2023-12-09 14:50:43,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549498625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:50:43,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:50:43,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:50:43,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723656871] [2023-12-09 14:50:43,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:50:43,267 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:50:43,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:50:43,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:50:43,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:50:43,311 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2023-12-09 14:50:43,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 66 transitions, 138 flow. Second operand has 6 states, 6 states have (on average 53.333333333333336) internal successors, (320), 6 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:43,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:50:43,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2023-12-09 14:50:43,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:50:43,482 INFO L124 PetriNetUnfolderBase]: 50/226 cut-off events. [2023-12-09 14:50:43,482 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 14:50:43,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 226 events. 50/226 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 904 event pairs, 4 based on Foata normal form. 52/261 useless extension candidates. Maximal degree in co-relation 290. Up to 36 conditions per place. [2023-12-09 14:50:43,486 INFO L140 encePairwiseOnDemand]: 56/68 looper letters, 22 selfloop transitions, 21 changer transitions 0/93 dead transitions. [2023-12-09 14:50:43,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 93 transitions, 281 flow [2023-12-09 14:50:43,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 14:50:43,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 14:50:43,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 587 transitions. [2023-12-09 14:50:43,496 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8632352941176471 [2023-12-09 14:50:43,497 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 587 transitions. [2023-12-09 14:50:43,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 587 transitions. [2023-12-09 14:50:43,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:50:43,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 587 transitions. [2023-12-09 14:50:43,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:43,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 68.0) internal successors, (748), 11 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:43,507 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 68.0) internal successors, (748), 11 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:43,509 INFO L308 CegarLoopForPetriNet]: 68 programPoint places, 8 predicate places. [2023-12-09 14:50:43,509 INFO L500 AbstractCegarLoop]: Abstraction has has 76 places, 93 transitions, 281 flow [2023-12-09 14:50:43,509 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.333333333333336) internal successors, (320), 6 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:43,510 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:50:43,510 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:50:43,510 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 14:50:43,510 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:50:43,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:50:43,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1618670713, now seen corresponding path program 1 times [2023-12-09 14:50:43,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:50:43,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094670795] [2023-12-09 14:50:43,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:50:43,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:50:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:50:43,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:50:43,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:50:43,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094670795] [2023-12-09 14:50:43,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094670795] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:50:43,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:50:43,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:50:43,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859292363] [2023-12-09 14:50:43,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:50:43,684 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:50:43,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:50:43,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:50:43,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:50:43,687 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2023-12-09 14:50:43,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 93 transitions, 281 flow. Second operand has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:43,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:50:43,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2023-12-09 14:50:43,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:50:43,851 INFO L124 PetriNetUnfolderBase]: 55/258 cut-off events. [2023-12-09 14:50:43,851 INFO L125 PetriNetUnfolderBase]: For 40/68 co-relation queries the response was YES. [2023-12-09 14:50:43,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 445 conditions, 258 events. 55/258 cut-off events. For 40/68 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1075 event pairs, 0 based on Foata normal form. 5/242 useless extension candidates. Maximal degree in co-relation 412. Up to 43 conditions per place. [2023-12-09 14:50:43,853 INFO L140 encePairwiseOnDemand]: 60/68 looper letters, 19 selfloop transitions, 9 changer transitions 46/116 dead transitions. [2023-12-09 14:50:43,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 116 transitions, 505 flow [2023-12-09 14:50:43,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 14:50:43,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 14:50:43,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 454 transitions. [2023-12-09 14:50:43,856 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8345588235294118 [2023-12-09 14:50:43,856 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 454 transitions. [2023-12-09 14:50:43,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 454 transitions. [2023-12-09 14:50:43,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:50:43,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 454 transitions. [2023-12-09 14:50:43,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 56.75) internal successors, (454), 8 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:43,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:43,860 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:43,860 INFO L308 CegarLoopForPetriNet]: 68 programPoint places, 15 predicate places. [2023-12-09 14:50:43,861 INFO L500 AbstractCegarLoop]: Abstraction has has 83 places, 116 transitions, 505 flow [2023-12-09 14:50:43,861 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:43,861 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:50:43,861 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:50:43,861 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 14:50:43,861 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:50:43,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:50:43,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1498210311, now seen corresponding path program 1 times [2023-12-09 14:50:43,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:50:43,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334725785] [2023-12-09 14:50:43,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:50:43,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:50:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:50:44,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:50:44,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:50:44,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334725785] [2023-12-09 14:50:44,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334725785] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:50:44,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:50:44,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:50:44,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674873884] [2023-12-09 14:50:44,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:50:44,005 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:50:44,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:50:44,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:50:44,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:50:44,009 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2023-12-09 14:50:44,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 116 transitions, 505 flow. Second operand has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:44,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:50:44,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2023-12-09 14:50:44,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:50:44,145 INFO L124 PetriNetUnfolderBase]: 79/377 cut-off events. [2023-12-09 14:50:44,145 INFO L125 PetriNetUnfolderBase]: For 179/295 co-relation queries the response was YES. [2023-12-09 14:50:44,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 761 conditions, 377 events. 79/377 cut-off events. For 179/295 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1982 event pairs, 0 based on Foata normal form. 24/369 useless extension candidates. Maximal degree in co-relation 723. Up to 69 conditions per place. [2023-12-09 14:50:44,149 INFO L140 encePairwiseOnDemand]: 60/68 looper letters, 25 selfloop transitions, 11 changer transitions 68/146 dead transitions. [2023-12-09 14:50:44,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 146 transitions, 877 flow [2023-12-09 14:50:44,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 14:50:44,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 14:50:44,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 568 transitions. [2023-12-09 14:50:44,151 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8352941176470589 [2023-12-09 14:50:44,151 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 568 transitions. [2023-12-09 14:50:44,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 568 transitions. [2023-12-09 14:50:44,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:50:44,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 568 transitions. [2023-12-09 14:50:44,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 56.8) internal successors, (568), 10 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:44,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 68.0) internal successors, (748), 11 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:44,157 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 68.0) internal successors, (748), 11 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:44,158 INFO L308 CegarLoopForPetriNet]: 68 programPoint places, 24 predicate places. [2023-12-09 14:50:44,158 INFO L500 AbstractCegarLoop]: Abstraction has has 92 places, 146 transitions, 877 flow [2023-12-09 14:50:44,158 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:44,158 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:50:44,158 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:50:44,159 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 14:50:44,159 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:50:44,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:50:44,160 INFO L85 PathProgramCache]: Analyzing trace with hash -2002865279, now seen corresponding path program 2 times [2023-12-09 14:50:44,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:50:44,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540432378] [2023-12-09 14:50:44,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:50:44,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:50:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:50:44,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:50:44,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:50:44,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540432378] [2023-12-09 14:50:44,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540432378] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:50:44,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:50:44,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:50:44,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777114625] [2023-12-09 14:50:44,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:50:44,283 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:50:44,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:50:44,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:50:44,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:50:44,284 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2023-12-09 14:50:44,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 146 transitions, 877 flow. Second operand has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:44,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:50:44,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2023-12-09 14:50:44,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:50:44,414 INFO L124 PetriNetUnfolderBase]: 94/446 cut-off events. [2023-12-09 14:50:44,415 INFO L125 PetriNetUnfolderBase]: For 377/507 co-relation queries the response was YES. [2023-12-09 14:50:44,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1047 conditions, 446 events. 94/446 cut-off events. For 377/507 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2485 event pairs, 0 based on Foata normal form. 39/453 useless extension candidates. Maximal degree in co-relation 1004. Up to 85 conditions per place. [2023-12-09 14:50:44,417 INFO L140 encePairwiseOnDemand]: 60/68 looper letters, 26 selfloop transitions, 15 changer transitions 96/179 dead transitions. [2023-12-09 14:50:44,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 179 transitions, 1399 flow [2023-12-09 14:50:44,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-09 14:50:44,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-12-09 14:50:44,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 623 transitions. [2023-12-09 14:50:44,419 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8328877005347594 [2023-12-09 14:50:44,420 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 623 transitions. [2023-12-09 14:50:44,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 623 transitions. [2023-12-09 14:50:44,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:50:44,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 623 transitions. [2023-12-09 14:50:44,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 56.63636363636363) internal successors, (623), 11 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:44,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 68.0) internal successors, (816), 12 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:44,423 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 68.0) internal successors, (816), 12 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:44,424 INFO L308 CegarLoopForPetriNet]: 68 programPoint places, 34 predicate places. [2023-12-09 14:50:44,425 INFO L500 AbstractCegarLoop]: Abstraction has has 102 places, 179 transitions, 1399 flow [2023-12-09 14:50:44,425 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:44,425 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:50:44,425 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:50:44,425 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 14:50:44,425 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:50:44,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:50:44,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1956601411, now seen corresponding path program 1 times [2023-12-09 14:50:44,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:50:44,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018940883] [2023-12-09 14:50:44,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:50:44,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:50:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:50:44,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:50:44,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:50:44,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018940883] [2023-12-09 14:50:44,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018940883] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:50:44,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:50:44,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:50:44,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896193183] [2023-12-09 14:50:44,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:50:44,600 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:50:44,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:50:44,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:50:44,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:50:44,601 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2023-12-09 14:50:44,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 179 transitions, 1399 flow. Second operand has 7 states, 7 states have (on average 53.42857142857143) internal successors, (374), 7 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:44,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:50:44,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2023-12-09 14:50:44,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:50:44,753 INFO L124 PetriNetUnfolderBase]: 135/618 cut-off events. [2023-12-09 14:50:44,753 INFO L125 PetriNetUnfolderBase]: For 898/1183 co-relation queries the response was YES. [2023-12-09 14:50:44,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1677 conditions, 618 events. 135/618 cut-off events. For 898/1183 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3940 event pairs, 0 based on Foata normal form. 68/640 useless extension candidates. Maximal degree in co-relation 1629. Up to 127 conditions per place. [2023-12-09 14:50:44,756 INFO L140 encePairwiseOnDemand]: 59/68 looper letters, 31 selfloop transitions, 23 changer transitions 131/227 dead transitions. [2023-12-09 14:50:44,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 227 transitions, 2233 flow [2023-12-09 14:50:44,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:50:44,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:50:44,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 733 transitions. [2023-12-09 14:50:44,758 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.829185520361991 [2023-12-09 14:50:44,758 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 733 transitions. [2023-12-09 14:50:44,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 733 transitions. [2023-12-09 14:50:44,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:50:44,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 733 transitions. [2023-12-09 14:50:44,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 56.38461538461539) internal successors, (733), 13 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:44,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 68.0) internal successors, (952), 14 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:44,762 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 68.0) internal successors, (952), 14 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:44,762 INFO L308 CegarLoopForPetriNet]: 68 programPoint places, 46 predicate places. [2023-12-09 14:50:44,762 INFO L500 AbstractCegarLoop]: Abstraction has has 114 places, 227 transitions, 2233 flow [2023-12-09 14:50:44,763 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.42857142857143) internal successors, (374), 7 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:44,763 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:50:44,763 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:50:44,763 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 14:50:44,763 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:50:44,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:50:44,764 INFO L85 PathProgramCache]: Analyzing trace with hash 848435781, now seen corresponding path program 2 times [2023-12-09 14:50:44,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:50:44,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516912258] [2023-12-09 14:50:44,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:50:44,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:50:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:50:44,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:50:44,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:50:44,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516912258] [2023-12-09 14:50:44,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516912258] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:50:44,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:50:44,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:50:44,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518243376] [2023-12-09 14:50:44,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:50:44,850 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:50:44,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:50:44,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:50:44,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:50:44,852 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2023-12-09 14:50:44,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 227 transitions, 2233 flow. Second operand has 7 states, 7 states have (on average 53.42857142857143) internal successors, (374), 7 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:44,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:50:44,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2023-12-09 14:50:44,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:50:44,992 INFO L124 PetriNetUnfolderBase]: 145/673 cut-off events. [2023-12-09 14:50:44,992 INFO L125 PetriNetUnfolderBase]: For 1361/1634 co-relation queries the response was YES. [2023-12-09 14:50:44,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2032 conditions, 673 events. 145/673 cut-off events. For 1361/1634 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4483 event pairs, 0 based on Foata normal form. 57/684 useless extension candidates. Maximal degree in co-relation 1979. Up to 134 conditions per place. [2023-12-09 14:50:44,996 INFO L140 encePairwiseOnDemand]: 59/68 looper letters, 31 selfloop transitions, 23 changer transitions 158/254 dead transitions. [2023-12-09 14:50:44,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 254 transitions, 2965 flow [2023-12-09 14:50:44,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-09 14:50:44,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-12-09 14:50:44,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 669 transitions. [2023-12-09 14:50:44,998 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8198529411764706 [2023-12-09 14:50:44,998 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 669 transitions. [2023-12-09 14:50:44,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 669 transitions. [2023-12-09 14:50:44,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:50:44,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 669 transitions. [2023-12-09 14:50:45,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 55.75) internal successors, (669), 12 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:45,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 68.0) internal successors, (884), 13 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:45,001 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 68.0) internal successors, (884), 13 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:45,002 INFO L308 CegarLoopForPetriNet]: 68 programPoint places, 57 predicate places. [2023-12-09 14:50:45,002 INFO L500 AbstractCegarLoop]: Abstraction has has 125 places, 254 transitions, 2965 flow [2023-12-09 14:50:45,002 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.42857142857143) internal successors, (374), 7 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:45,002 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:50:45,003 INFO L233 CegarLoopForPetriNet]: trace histogram [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] [2023-12-09 14:50:45,003 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 14:50:45,003 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:50:45,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:50:45,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1801210784, now seen corresponding path program 1 times [2023-12-09 14:50:45,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:50:45,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752186928] [2023-12-09 14:50:45,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:50:45,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:50:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:50:45,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:50:45,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:50:45,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752186928] [2023-12-09 14:50:45,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752186928] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 14:50:45,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511807903] [2023-12-09 14:50:45,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:50:45,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 14:50:45,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:50:45,162 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) [2023-12-09 14:50:45,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-09 14:50:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:50:45,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-09 14:50:45,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 14:50:45,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:50:45,387 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 14:50:45,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:50:45,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511807903] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 14:50:45,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 14:50:45,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2023-12-09 14:50:45,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478078399] [2023-12-09 14:50:45,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 14:50:45,529 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-09 14:50:45,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:50:45,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-09 14:50:45,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-12-09 14:50:45,531 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2023-12-09 14:50:45,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 254 transitions, 2965 flow. Second operand has 13 states, 13 states have (on average 53.61538461538461) internal successors, (697), 13 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:45,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:50:45,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2023-12-09 14:50:45,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:50:45,881 INFO L124 PetriNetUnfolderBase]: 231/1153 cut-off events. [2023-12-09 14:50:45,881 INFO L125 PetriNetUnfolderBase]: For 2878/3194 co-relation queries the response was YES. [2023-12-09 14:50:45,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3654 conditions, 1153 events. 231/1153 cut-off events. For 2878/3194 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 8333 event pairs, 0 based on Foata normal form. 57/1119 useless extension candidates. Maximal degree in co-relation 3596. Up to 222 conditions per place. [2023-12-09 14:50:45,889 INFO L140 encePairwiseOnDemand]: 59/68 looper letters, 36 selfloop transitions, 38 changer transitions 261/377 dead transitions. [2023-12-09 14:50:45,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 377 transitions, 5341 flow [2023-12-09 14:50:45,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 14:50:45,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 14:50:45,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1224 transitions. [2023-12-09 14:50:45,892 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2023-12-09 14:50:45,892 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1224 transitions. [2023-12-09 14:50:45,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1224 transitions. [2023-12-09 14:50:45,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:50:45,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1224 transitions. [2023-12-09 14:50:45,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 55.63636363636363) internal successors, (1224), 22 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:45,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 68.0) internal successors, (1564), 23 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:45,899 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 68.0) internal successors, (1564), 23 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:45,900 INFO L308 CegarLoopForPetriNet]: 68 programPoint places, 78 predicate places. [2023-12-09 14:50:45,901 INFO L500 AbstractCegarLoop]: Abstraction has has 146 places, 377 transitions, 5341 flow [2023-12-09 14:50:45,901 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 53.61538461538461) internal successors, (697), 13 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:45,901 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:50:45,901 INFO L233 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 3, 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] [2023-12-09 14:50:45,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-09 14:50:46,106 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 14:50:46,107 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:50:46,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:50:46,107 INFO L85 PathProgramCache]: Analyzing trace with hash 374984425, now seen corresponding path program 1 times [2023-12-09 14:50:46,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:50:46,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314009555] [2023-12-09 14:50:46,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:50:46,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:50:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:50:46,275 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:50:46,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:50:46,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314009555] [2023-12-09 14:50:46,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314009555] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 14:50:46,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551370729] [2023-12-09 14:50:46,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:50:46,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 14:50:46,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:50:46,290 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) [2023-12-09 14:50:46,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-09 14:50:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:50:46,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-09 14:50:46,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 14:50:46,467 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:50:46,467 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 14:50:46,662 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:50:46,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551370729] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 14:50:46,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 14:50:46,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 17 [2023-12-09 14:50:46,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342621318] [2023-12-09 14:50:46,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 14:50:46,663 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-09 14:50:46,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:50:46,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-09 14:50:46,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2023-12-09 14:50:46,665 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2023-12-09 14:50:46,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 377 transitions, 5341 flow. Second operand has 17 states, 17 states have (on average 53.588235294117645) internal successors, (911), 17 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:46,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:50:46,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2023-12-09 14:50:46,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:50:47,264 INFO L124 PetriNetUnfolderBase]: 440/2262 cut-off events. [2023-12-09 14:50:47,264 INFO L125 PetriNetUnfolderBase]: For 6892/7430 co-relation queries the response was YES. [2023-12-09 14:50:47,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7647 conditions, 2262 events. 440/2262 cut-off events. For 6892/7430 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 18002 event pairs, 0 based on Foata normal form. 76/2149 useless extension candidates. Maximal degree in co-relation 7584. Up to 436 conditions per place. [2023-12-09 14:50:47,276 INFO L140 encePairwiseOnDemand]: 60/68 looper letters, 75 selfloop transitions, 27 changer transitions 549/693 dead transitions. [2023-12-09 14:50:47,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 693 transitions, 11683 flow [2023-12-09 14:50:47,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-09 14:50:47,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2023-12-09 14:50:47,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1745 transitions. [2023-12-09 14:50:47,282 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8277988614800759 [2023-12-09 14:50:47,282 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 1745 transitions. [2023-12-09 14:50:47,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 1745 transitions. [2023-12-09 14:50:47,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:50:47,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 1745 transitions. [2023-12-09 14:50:47,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 56.29032258064516) internal successors, (1745), 31 states have internal predecessors, (1745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:47,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 68.0) internal successors, (2176), 32 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:47,291 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 68.0) internal successors, (2176), 32 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:47,293 INFO L308 CegarLoopForPetriNet]: 68 programPoint places, 108 predicate places. [2023-12-09 14:50:47,293 INFO L500 AbstractCegarLoop]: Abstraction has has 176 places, 693 transitions, 11683 flow [2023-12-09 14:50:47,294 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 53.588235294117645) internal successors, (911), 17 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:47,294 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:50:47,294 INFO L233 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 3, 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] [2023-12-09 14:50:47,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-09 14:50:47,499 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,SelfDestructingSolverStorable7 [2023-12-09 14:50:47,499 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:50:47,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:50:47,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1196497927, now seen corresponding path program 2 times [2023-12-09 14:50:47,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:50:47,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172497525] [2023-12-09 14:50:47,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:50:47,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:50:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:50:47,644 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:50:47,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:50:47,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172497525] [2023-12-09 14:50:47,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172497525] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 14:50:47,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70478321] [2023-12-09 14:50:47,649 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 14:50:47,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 14:50:47,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:50:47,665 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) [2023-12-09 14:50:47,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-09 14:50:47,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 14:50:47,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 14:50:47,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-09 14:50:47,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 14:50:47,876 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:50:47,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 14:50:48,047 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:50:48,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70478321] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 14:50:48,048 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 14:50:48,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 17 [2023-12-09 14:50:48,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006046712] [2023-12-09 14:50:48,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 14:50:48,051 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-09 14:50:48,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:50:48,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-09 14:50:48,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2023-12-09 14:50:48,053 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2023-12-09 14:50:48,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 693 transitions, 11683 flow. Second operand has 17 states, 17 states have (on average 53.588235294117645) internal successors, (911), 17 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:48,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:50:48,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2023-12-09 14:50:48,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:50:49,056 INFO L124 PetriNetUnfolderBase]: 741/3748 cut-off events. [2023-12-09 14:50:49,056 INFO L125 PetriNetUnfolderBase]: For 14778/16069 co-relation queries the response was YES. [2023-12-09 14:50:49,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13927 conditions, 3748 events. 741/3748 cut-off events. For 14778/16069 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 35197 event pairs, 0 based on Foata normal form. 169/3601 useless extension candidates. Maximal degree in co-relation 13859. Up to 755 conditions per place. [2023-12-09 14:50:49,079 INFO L140 encePairwiseOnDemand]: 59/68 looper letters, 94 selfloop transitions, 84 changer transitions 899/1119 dead transitions. [2023-12-09 14:50:49,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 1119 transitions, 21489 flow [2023-12-09 14:50:49,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-09 14:50:49,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2023-12-09 14:50:49,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 2291 transitions. [2023-12-09 14:50:49,083 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8217360114777619 [2023-12-09 14:50:49,083 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 2291 transitions. [2023-12-09 14:50:49,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 2291 transitions. [2023-12-09 14:50:49,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:50:49,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 2291 transitions. [2023-12-09 14:50:49,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 55.8780487804878) internal successors, (2291), 41 states have internal predecessors, (2291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:49,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 68.0) internal successors, (2856), 42 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:49,093 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 68.0) internal successors, (2856), 42 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:49,094 INFO L308 CegarLoopForPetriNet]: 68 programPoint places, 148 predicate places. [2023-12-09 14:50:49,094 INFO L500 AbstractCegarLoop]: Abstraction has has 216 places, 1119 transitions, 21489 flow [2023-12-09 14:50:49,094 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 53.588235294117645) internal successors, (911), 17 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:49,094 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:50:49,094 INFO L233 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 3, 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] [2023-12-09 14:50:49,102 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-09 14:50:49,299 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 14:50:49,302 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:50:49,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:50:49,302 INFO L85 PathProgramCache]: Analyzing trace with hash 417271697, now seen corresponding path program 3 times [2023-12-09 14:50:49,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:50:49,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599018236] [2023-12-09 14:50:49,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:50:49,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:50:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:50:49,556 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:50:49,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:50:49,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599018236] [2023-12-09 14:50:49,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599018236] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 14:50:49,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051730582] [2023-12-09 14:50:49,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-09 14:50:49,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 14:50:49,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:50:49,558 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) [2023-12-09 14:50:49,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-09 14:50:49,644 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-09 14:50:49,644 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 14:50:49,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-09 14:50:49,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 14:50:49,735 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:50:49,735 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 14:50:49,857 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:50:49,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051730582] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 14:50:49,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 14:50:49,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 17 [2023-12-09 14:50:49,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000187053] [2023-12-09 14:50:49,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 14:50:49,858 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-09 14:50:49,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:50:49,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-09 14:50:49,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2023-12-09 14:50:49,861 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2023-12-09 14:50:49,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 1119 transitions, 21489 flow. Second operand has 17 states, 17 states have (on average 53.64705882352941) internal successors, (912), 17 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:49,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:50:49,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2023-12-09 14:50:49,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:50:51,001 INFO L124 PetriNetUnfolderBase]: 992/5070 cut-off events. [2023-12-09 14:50:51,001 INFO L125 PetriNetUnfolderBase]: For 24640/26254 co-relation queries the response was YES. [2023-12-09 14:50:51,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20259 conditions, 5070 events. 992/5070 cut-off events. For 24640/26254 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 51855 event pairs, 0 based on Foata normal form. 257/4909 useless extension candidates. Maximal degree in co-relation 20186. Up to 1030 conditions per place. [2023-12-09 14:50:51,030 INFO L140 encePairwiseOnDemand]: 59/68 looper letters, 119 selfloop transitions, 139 changer transitions 1199/1499 dead transitions. [2023-12-09 14:50:51,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 1499 transitions, 31987 flow [2023-12-09 14:50:51,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-09 14:50:51,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2023-12-09 14:50:51,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 2281 transitions. [2023-12-09 14:50:51,034 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8181492109038737 [2023-12-09 14:50:51,034 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 2281 transitions. [2023-12-09 14:50:51,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 2281 transitions. [2023-12-09 14:50:51,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:50:51,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 2281 transitions. [2023-12-09 14:50:51,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 55.63414634146341) internal successors, (2281), 41 states have internal predecessors, (2281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:51,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 68.0) internal successors, (2856), 42 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:51,041 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 68.0) internal successors, (2856), 42 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:51,042 INFO L308 CegarLoopForPetriNet]: 68 programPoint places, 188 predicate places. [2023-12-09 14:50:51,042 INFO L500 AbstractCegarLoop]: Abstraction has has 256 places, 1499 transitions, 31987 flow [2023-12-09 14:50:51,042 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 53.64705882352941) internal successors, (912), 17 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:51,042 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:50:51,042 INFO L233 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 4, 4, 4, 4, 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] [2023-12-09 14:50:51,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-09 14:50:51,261 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 14:50:51,262 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:50:51,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:50:51,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1734588324, now seen corresponding path program 4 times [2023-12-09 14:50:51,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:50:51,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674409608] [2023-12-09 14:50:51,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:50:51,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:50:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:50:51,461 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 5 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:50:51,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:50:51,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674409608] [2023-12-09 14:50:51,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674409608] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 14:50:51,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555207605] [2023-12-09 14:50:51,462 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-09 14:50:51,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 14:50:51,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:50:51,463 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) [2023-12-09 14:50:51,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-09 14:50:51,524 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-09 14:50:51,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 14:50:51,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-09 14:50:51,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 14:50:51,707 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 5 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:50:51,707 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 14:50:51,922 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 5 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:50:51,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555207605] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 14:50:51,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 14:50:51,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 26 [2023-12-09 14:50:51,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601111545] [2023-12-09 14:50:51,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 14:50:51,923 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-09 14:50:51,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:50:51,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-09 14:50:51,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=527, Unknown=0, NotChecked=0, Total=650 [2023-12-09 14:50:51,925 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2023-12-09 14:50:51,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 1499 transitions, 31987 flow. Second operand has 26 states, 26 states have (on average 53.34615384615385) internal successors, (1387), 26 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:51,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:50:51,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2023-12-09 14:50:51,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:50:53,962 INFO L124 PetriNetUnfolderBase]: 1704/8643 cut-off events. [2023-12-09 14:50:53,962 INFO L125 PetriNetUnfolderBase]: For 51366/54468 co-relation queries the response was YES. [2023-12-09 14:50:53,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37307 conditions, 8643 events. 1704/8643 cut-off events. For 51366/54468 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 94438 event pairs, 0 based on Foata normal form. 393/8330 useless extension candidates. Maximal degree in co-relation 37229. Up to 1764 conditions per place. [2023-12-09 14:50:54,003 INFO L140 encePairwiseOnDemand]: 59/68 looper letters, 201 selfloop transitions, 181 changer transitions 2162/2586 dead transitions. [2023-12-09 14:50:54,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 2586 transitions, 60973 flow [2023-12-09 14:50:54,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-09 14:50:54,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-12-09 14:50:54,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 2673 transitions. [2023-12-09 14:50:54,075 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8189338235294118 [2023-12-09 14:50:54,075 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 2673 transitions. [2023-12-09 14:50:54,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 2673 transitions. [2023-12-09 14:50:54,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:50:54,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 2673 transitions. [2023-12-09 14:50:54,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 55.6875) internal successors, (2673), 48 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:54,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 68.0) internal successors, (3332), 49 states have internal predecessors, (3332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:54,083 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 68.0) internal successors, (3332), 49 states have internal predecessors, (3332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:54,083 INFO L308 CegarLoopForPetriNet]: 68 programPoint places, 235 predicate places. [2023-12-09 14:50:54,083 INFO L500 AbstractCegarLoop]: Abstraction has has 303 places, 2586 transitions, 60973 flow [2023-12-09 14:50:54,084 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 53.34615384615385) internal successors, (1387), 26 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:54,084 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:50:54,084 INFO L233 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 4, 4, 4, 4, 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] [2023-12-09 14:50:54,099 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-09 14:50:54,284 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,SelfDestructingSolverStorable10 [2023-12-09 14:50:54,285 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:50:54,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:50:54,285 INFO L85 PathProgramCache]: Analyzing trace with hash -624944036, now seen corresponding path program 5 times [2023-12-09 14:50:54,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:50:54,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300396556] [2023-12-09 14:50:54,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:50:54,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:50:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:50:54,466 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:50:54,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:50:54,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300396556] [2023-12-09 14:50:54,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300396556] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 14:50:54,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219328543] [2023-12-09 14:50:54,467 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-09 14:50:54,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 14:50:54,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:50:54,482 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) [2023-12-09 14:50:54,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-09 14:50:54,542 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-12-09 14:50:54,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 14:50:54,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-09 14:50:54,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 14:50:54,618 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:50:54,618 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 14:50:54,809 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:50:54,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219328543] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 14:50:54,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 14:50:54,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 26 [2023-12-09 14:50:54,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869689934] [2023-12-09 14:50:54,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 14:50:54,810 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-09 14:50:54,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:50:54,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-09 14:50:54,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2023-12-09 14:50:54,811 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2023-12-09 14:50:54,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 2586 transitions, 60973 flow. Second operand has 26 states, 26 states have (on average 53.30769230769231) internal successors, (1386), 26 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:54,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:50:54,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2023-12-09 14:50:54,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:50:59,159 INFO L124 PetriNetUnfolderBase]: 2876/15030 cut-off events. [2023-12-09 14:50:59,160 INFO L125 PetriNetUnfolderBase]: For 103923/108595 co-relation queries the response was YES. [2023-12-09 14:50:59,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67707 conditions, 15030 events. 2876/15030 cut-off events. For 103923/108595 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 180427 event pairs, 0 based on Foata normal form. 444/14213 useless extension candidates. Maximal degree in co-relation 67624. Up to 2995 conditions per place. [2023-12-09 14:50:59,219 INFO L140 encePairwiseOnDemand]: 59/68 looper letters, 288 selfloop transitions, 337 changer transitions 3649/4316 dead transitions. [2023-12-09 14:50:59,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 4316 transitions, 111025 flow [2023-12-09 14:50:59,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-12-09 14:50:59,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2023-12-09 14:50:59,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 3224 transitions. [2023-12-09 14:50:59,223 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8174442190669371 [2023-12-09 14:50:59,223 INFO L72 ComplementDD]: Start complementDD. Operand 58 states and 3224 transitions. [2023-12-09 14:50:59,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 3224 transitions. [2023-12-09 14:50:59,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:50:59,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 58 states and 3224 transitions. [2023-12-09 14:50:59,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 59 states, 58 states have (on average 55.58620689655172) internal successors, (3224), 58 states have internal predecessors, (3224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:59,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 59 states, 59 states have (on average 68.0) internal successors, (4012), 59 states have internal predecessors, (4012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:59,232 INFO L81 ComplementDD]: Finished complementDD. Result has 59 states, 59 states have (on average 68.0) internal successors, (4012), 59 states have internal predecessors, (4012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:59,232 INFO L308 CegarLoopForPetriNet]: 68 programPoint places, 292 predicate places. [2023-12-09 14:50:59,232 INFO L500 AbstractCegarLoop]: Abstraction has has 360 places, 4316 transitions, 111025 flow [2023-12-09 14:50:59,233 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 53.30769230769231) internal successors, (1386), 26 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:50:59,233 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:50:59,233 INFO L233 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:50:59,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-09 14:50:59,440 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 14:50:59,441 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:50:59,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:50:59,441 INFO L85 PathProgramCache]: Analyzing trace with hash -2038696953, now seen corresponding path program 6 times [2023-12-09 14:50:59,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:50:59,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426850451] [2023-12-09 14:50:59,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:50:59,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:50:59,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:50:59,917 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:50:59,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:50:59,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426850451] [2023-12-09 14:50:59,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426850451] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 14:50:59,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026758689] [2023-12-09 14:50:59,918 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-09 14:50:59,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 14:50:59,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:50:59,919 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) [2023-12-09 14:50:59,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-09 14:51:00,012 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2023-12-09 14:51:00,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 14:51:00,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-09 14:51:00,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 14:51:00,275 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:51:00,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 14:51:00,905 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:51:00,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026758689] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 14:51:00,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 14:51:00,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 41 [2023-12-09 14:51:00,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411973835] [2023-12-09 14:51:00,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 14:51:00,906 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-12-09 14:51:00,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:51:00,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-12-09 14:51:00,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=1243, Unknown=0, NotChecked=0, Total=1640 [2023-12-09 14:51:00,909 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2023-12-09 14:51:00,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 4316 transitions, 111025 flow. Second operand has 41 states, 41 states have (on average 53.26829268292683) internal successors, (2184), 41 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:51:00,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:51:00,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2023-12-09 14:51:00,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:51:09,556 INFO L124 PetriNetUnfolderBase]: 3437/18105 cut-off events. [2023-12-09 14:51:09,557 INFO L125 PetriNetUnfolderBase]: For 141673/145567 co-relation queries the response was YES. [2023-12-09 14:51:09,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86208 conditions, 18105 events. 3437/18105 cut-off events. For 141673/145567 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 208231 event pairs, 0 based on Foata normal form. 169/16721 useless extension candidates. Maximal degree in co-relation 86120. Up to 3571 conditions per place. [2023-12-09 14:51:09,661 INFO L140 encePairwiseOnDemand]: 60/68 looper letters, 624 selfloop transitions, 61 changer transitions 4438/5165 dead transitions. [2023-12-09 14:51:09,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 5165 transitions, 143329 flow [2023-12-09 14:51:09,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2023-12-09 14:51:09,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2023-12-09 14:51:09,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 4445 transitions. [2023-12-09 14:51:09,671 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8274385703648548 [2023-12-09 14:51:09,671 INFO L72 ComplementDD]: Start complementDD. Operand 79 states and 4445 transitions. [2023-12-09 14:51:09,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 79 states and 4445 transitions. [2023-12-09 14:51:09,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:51:09,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 79 states and 4445 transitions. [2023-12-09 14:51:09,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 80 states, 79 states have (on average 56.265822784810126) internal successors, (4445), 79 states have internal predecessors, (4445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:51:09,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 80 states, 80 states have (on average 68.0) internal successors, (5440), 80 states have internal predecessors, (5440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:51:09,693 INFO L81 ComplementDD]: Finished complementDD. Result has 80 states, 80 states have (on average 68.0) internal successors, (5440), 80 states have internal predecessors, (5440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:51:09,693 INFO L308 CegarLoopForPetriNet]: 68 programPoint places, 370 predicate places. [2023-12-09 14:51:09,693 INFO L500 AbstractCegarLoop]: Abstraction has has 438 places, 5165 transitions, 143329 flow [2023-12-09 14:51:09,694 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 53.26829268292683) internal successors, (2184), 41 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:51:09,694 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:51:09,694 INFO L233 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:51:09,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-09 14:51:09,899 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 14:51:09,899 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:51:09,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:51:09,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1815873209, now seen corresponding path program 7 times [2023-12-09 14:51:09,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:51:09,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080399519] [2023-12-09 14:51:09,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:51:09,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:51:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:51:10,272 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:51:10,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:51:10,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080399519] [2023-12-09 14:51:10,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080399519] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 14:51:10,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739243371] [2023-12-09 14:51:10,273 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-09 14:51:10,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 14:51:10,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:51:10,274 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) [2023-12-09 14:51:10,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-09 14:51:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:51:10,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-09 14:51:10,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 14:51:10,537 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:51:10,538 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 14:51:11,082 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:51:11,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739243371] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 14:51:11,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 14:51:11,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 41 [2023-12-09 14:51:11,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168766608] [2023-12-09 14:51:11,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 14:51:11,083 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-12-09 14:51:11,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:51:11,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-12-09 14:51:11,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=352, Invalid=1288, Unknown=0, NotChecked=0, Total=1640 [2023-12-09 14:51:11,086 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2023-12-09 14:51:11,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 5165 transitions, 143329 flow. Second operand has 41 states, 41 states have (on average 53.26829268292683) internal successors, (2184), 41 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:51:11,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:51:11,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2023-12-09 14:51:11,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:51:24,641 INFO L124 PetriNetUnfolderBase]: 4656/24810 cut-off events. [2023-12-09 14:51:24,641 INFO L125 PetriNetUnfolderBase]: For 220004/224736 co-relation queries the response was YES. [2023-12-09 14:51:24,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123995 conditions, 24810 events. 4656/24810 cut-off events. For 220004/224736 co-relation queries the response was YES. Maximal size of possible extension queue 447. Compared 298966 event pairs, 0 based on Foata normal form. 274/22921 useless extension candidates. Maximal degree in co-relation 123902. Up to 4825 conditions per place. [2023-12-09 14:51:24,783 INFO L140 encePairwiseOnDemand]: 59/68 looper letters, 620 selfloop transitions, 237 changer transitions 6112/7011 dead transitions. [2023-12-09 14:51:24,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 526 places, 7011 transitions, 208939 flow [2023-12-09 14:51:24,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-12-09 14:51:24,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2023-12-09 14:51:24,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 4974 transitions. [2023-12-09 14:51:24,795 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8218770654329147 [2023-12-09 14:51:24,796 INFO L72 ComplementDD]: Start complementDD. Operand 89 states and 4974 transitions. [2023-12-09 14:51:24,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 4974 transitions. [2023-12-09 14:51:24,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:51:24,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 89 states and 4974 transitions. [2023-12-09 14:51:24,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 90 states, 89 states have (on average 55.8876404494382) internal successors, (4974), 89 states have internal predecessors, (4974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:51:24,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 90 states, 90 states have (on average 68.0) internal successors, (6120), 90 states have internal predecessors, (6120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:51:24,827 INFO L81 ComplementDD]: Finished complementDD. Result has 90 states, 90 states have (on average 68.0) internal successors, (6120), 90 states have internal predecessors, (6120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:51:24,828 INFO L308 CegarLoopForPetriNet]: 68 programPoint places, 458 predicate places. [2023-12-09 14:51:24,828 INFO L500 AbstractCegarLoop]: Abstraction has has 526 places, 7011 transitions, 208939 flow [2023-12-09 14:51:24,829 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 53.26829268292683) internal successors, (2184), 41 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:51:24,829 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:51:24,829 INFO L233 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:51:24,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-09 14:51:25,033 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,SelfDestructingSolverStorable13 [2023-12-09 14:51:25,033 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:51:25,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:51:25,033 INFO L85 PathProgramCache]: Analyzing trace with hash -381283959, now seen corresponding path program 8 times [2023-12-09 14:51:25,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:51:25,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410128214] [2023-12-09 14:51:25,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:51:25,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:51:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:51:25,477 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:51:25,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:51:25,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410128214] [2023-12-09 14:51:25,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410128214] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 14:51:25,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894105477] [2023-12-09 14:51:25,477 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 14:51:25,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 14:51:25,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:51:25,480 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) [2023-12-09 14:51:25,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-09 14:51:25,563 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 14:51:25,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 14:51:25,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-09 14:51:25,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 14:51:25,761 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:51:25,761 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 14:51:26,226 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:51:26,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894105477] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 14:51:26,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 14:51:26,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 41 [2023-12-09 14:51:26,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694573100] [2023-12-09 14:51:26,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 14:51:26,229 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-12-09 14:51:26,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:51:26,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-12-09 14:51:26,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1342, Unknown=0, NotChecked=0, Total=1640 [2023-12-09 14:51:26,234 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2023-12-09 14:51:26,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 526 places, 7011 transitions, 208939 flow. Second operand has 41 states, 41 states have (on average 53.26829268292683) internal successors, (2184), 41 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:51:26,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:51:26,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2023-12-09 14:51:26,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:51:54,337 INFO L124 PetriNetUnfolderBase]: 6620/34913 cut-off events. [2023-12-09 14:51:54,337 INFO L125 PetriNetUnfolderBase]: For 361899/371132 co-relation queries the response was YES. [2023-12-09 14:51:54,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186122 conditions, 34913 events. 6620/34913 cut-off events. For 361899/371132 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 442464 event pairs, 0 based on Foata normal form. 631/32535 useless extension candidates. Maximal degree in co-relation 186024. Up to 6868 conditions per place. [2023-12-09 14:51:54,520 INFO L140 encePairwiseOnDemand]: 59/68 looper letters, 560 selfloop transitions, 590 changer transitions 8793/9985 dead transitions. [2023-12-09 14:51:54,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 622 places, 9985 transitions, 318029 flow [2023-12-09 14:51:54,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-09 14:51:54,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2023-12-09 14:51:54,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 5410 transitions. [2023-12-09 14:51:54,528 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.820194057004245 [2023-12-09 14:51:54,528 INFO L72 ComplementDD]: Start complementDD. Operand 97 states and 5410 transitions. [2023-12-09 14:51:54,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 5410 transitions. [2023-12-09 14:51:54,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:51:54,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 97 states and 5410 transitions. [2023-12-09 14:51:54,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 98 states, 97 states have (on average 55.77319587628866) internal successors, (5410), 97 states have internal predecessors, (5410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:51:54,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 98 states, 98 states have (on average 68.0) internal successors, (6664), 98 states have internal predecessors, (6664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:51:54,577 INFO L81 ComplementDD]: Finished complementDD. Result has 98 states, 98 states have (on average 68.0) internal successors, (6664), 98 states have internal predecessors, (6664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:51:54,577 INFO L308 CegarLoopForPetriNet]: 68 programPoint places, 554 predicate places. [2023-12-09 14:51:54,577 INFO L500 AbstractCegarLoop]: Abstraction has has 622 places, 9985 transitions, 318029 flow [2023-12-09 14:51:54,578 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 53.26829268292683) internal successors, (2184), 41 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:51:54,578 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:51:54,578 INFO L233 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:51:54,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-09 14:51:54,778 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,SelfDestructingSolverStorable14 [2023-12-09 14:51:54,779 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:51:54,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:51:54,779 INFO L85 PathProgramCache]: Analyzing trace with hash -543418543, now seen corresponding path program 9 times [2023-12-09 14:51:54,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:51:54,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110065856] [2023-12-09 14:51:54,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:51:54,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:51:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:51:55,131 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:51:55,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:51:55,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110065856] [2023-12-09 14:51:55,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110065856] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 14:51:55,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394373941] [2023-12-09 14:51:55,131 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-09 14:51:55,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 14:51:55,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:51:55,146 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) [2023-12-09 14:51:55,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-09 14:51:55,235 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2023-12-09 14:51:55,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 14:51:55,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-09 14:51:55,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 14:51:55,354 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:51:55,355 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 14:51:55,761 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:51:55,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394373941] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 14:51:55,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 14:51:55,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 42 [2023-12-09 14:51:55,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473495878] [2023-12-09 14:51:55,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 14:51:55,762 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-12-09 14:51:55,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:51:55,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-12-09 14:51:55,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=1330, Unknown=0, NotChecked=0, Total=1722 [2023-12-09 14:51:55,764 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2023-12-09 14:51:55,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 9985 transitions, 318029 flow. Second operand has 42 states, 42 states have (on average 53.26190476190476) internal successors, (2237), 42 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:51:55,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:51:55,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2023-12-09 14:51:55,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:52:44,644 INFO L124 PetriNetUnfolderBase]: 7375/39664 cut-off events. [2023-12-09 14:52:44,644 INFO L125 PetriNetUnfolderBase]: For 468023/476809 co-relation queries the response was YES. [2023-12-09 14:52:44,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220377 conditions, 39664 events. 7375/39664 cut-off events. For 468023/476809 co-relation queries the response was YES. Maximal size of possible extension queue 630. Compared 513545 event pairs, 0 based on Foata normal form. 713/36938 useless extension candidates. Maximal degree in co-relation 220274. Up to 7820 conditions per place. [2023-12-09 14:52:44,872 INFO L140 encePairwiseOnDemand]: 59/68 looper letters, 620 selfloop transitions, 718 changer transitions 9751/11131 dead transitions. [2023-12-09 14:52:44,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 735 places, 11131 transitions, 376863 flow [2023-12-09 14:52:44,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2023-12-09 14:52:44,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2023-12-09 14:52:44,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 6332 transitions. [2023-12-09 14:52:44,877 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8168214654282766 [2023-12-09 14:52:44,877 INFO L72 ComplementDD]: Start complementDD. Operand 114 states and 6332 transitions. [2023-12-09 14:52:44,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 114 states and 6332 transitions. [2023-12-09 14:52:44,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:52:44,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 114 states and 6332 transitions. [2023-12-09 14:52:44,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 115 states, 114 states have (on average 55.54385964912281) internal successors, (6332), 114 states have internal predecessors, (6332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:52:44,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 115 states, 115 states have (on average 68.0) internal successors, (7820), 115 states have internal predecessors, (7820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:52:44,890 INFO L81 ComplementDD]: Finished complementDD. Result has 115 states, 115 states have (on average 68.0) internal successors, (7820), 115 states have internal predecessors, (7820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:52:44,891 INFO L308 CegarLoopForPetriNet]: 68 programPoint places, 667 predicate places. [2023-12-09 14:52:44,891 INFO L500 AbstractCegarLoop]: Abstraction has has 735 places, 11131 transitions, 376863 flow [2023-12-09 14:52:44,891 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 53.26190476190476) internal successors, (2237), 42 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:52:44,891 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:52:44,891 INFO L233 CegarLoopForPetriNet]: trace histogram [17, 17, 16, 16, 16, 16, 16, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:52:44,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-09 14:52:45,092 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,SelfDestructingSolverStorable15 [2023-12-09 14:52:45,092 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:52:45,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:52:45,092 INFO L85 PathProgramCache]: Analyzing trace with hash 492648662, now seen corresponding path program 10 times [2023-12-09 14:52:45,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:52:45,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802457681] [2023-12-09 14:52:45,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:52:45,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:52:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:52:46,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1187 backedges. 0 proven. 1187 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:52:46,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:52:46,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802457681] [2023-12-09 14:52:46,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802457681] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 14:52:46,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386766738] [2023-12-09 14:52:46,176 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-09 14:52:46,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 14:52:46,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:52:46,199 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 14:52:46,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-09 14:52:46,313 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-09 14:52:46,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 14:52:46,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-09 14:52:46,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 14:52:46,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1187 backedges. 0 proven. 1187 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:52:46,524 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 14:52:47,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1187 backedges. 0 proven. 1187 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:52:47,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386766738] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 14:52:47,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 14:52:47,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 73 [2023-12-09 14:52:47,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309739079] [2023-12-09 14:52:47,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 14:52:47,295 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2023-12-09 14:52:47,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:52:47,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2023-12-09 14:52:47,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1215, Invalid=4041, Unknown=0, NotChecked=0, Total=5256 [2023-12-09 14:52:47,299 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2023-12-09 14:52:47,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 735 places, 11131 transitions, 376863 flow. Second operand has 73 states, 73 states have (on average 53.10958904109589) internal successors, (3877), 73 states have internal predecessors, (3877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:52:47,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:52:47,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2023-12-09 14:52:47,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:53:54,180 INFO L124 PetriNetUnfolderBase]: 8290/44855 cut-off events. [2023-12-09 14:53:54,180 INFO L125 PetriNetUnfolderBase]: For 595990/605317 co-relation queries the response was YES. [2023-12-09 14:53:54,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260458 conditions, 44855 events. 8290/44855 cut-off events. For 595990/605317 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 581625 event pairs, 0 based on Foata normal form. 656/41587 useless extension candidates. Maximal degree in co-relation 260350. Up to 8776 conditions per place. [2023-12-09 14:53:54,463 INFO L140 encePairwiseOnDemand]: 59/68 looper letters, 687 selfloop transitions, 803 changer transitions 10943/12475 dead transitions. [2023-12-09 14:53:54,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 855 places, 12475 transitions, 447409 flow [2023-12-09 14:53:54,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2023-12-09 14:53:54,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2023-12-09 14:53:54,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 6705 transitions. [2023-12-09 14:53:54,468 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8149003403014098 [2023-12-09 14:53:54,468 INFO L72 ComplementDD]: Start complementDD. Operand 121 states and 6705 transitions. [2023-12-09 14:53:54,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 121 states and 6705 transitions. [2023-12-09 14:53:54,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:53:54,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 121 states and 6705 transitions. [2023-12-09 14:53:54,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 122 states, 121 states have (on average 55.413223140495866) internal successors, (6705), 121 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:53:54,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 122 states, 122 states have (on average 68.0) internal successors, (8296), 122 states have internal predecessors, (8296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:53:54,482 INFO L81 ComplementDD]: Finished complementDD. Result has 122 states, 122 states have (on average 68.0) internal successors, (8296), 122 states have internal predecessors, (8296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:53:54,482 INFO L308 CegarLoopForPetriNet]: 68 programPoint places, 787 predicate places. [2023-12-09 14:53:54,482 INFO L500 AbstractCegarLoop]: Abstraction has has 855 places, 12475 transitions, 447409 flow [2023-12-09 14:53:54,483 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 53.10958904109589) internal successors, (3877), 73 states have internal predecessors, (3877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:53:54,483 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:53:54,483 INFO L233 CegarLoopForPetriNet]: trace histogram [20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:53:54,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-09 14:53:54,689 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-09 14:53:54,689 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:53:54,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:53:54,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1668336628, now seen corresponding path program 11 times [2023-12-09 14:53:54,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:53:54,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864857525] [2023-12-09 14:53:54,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:53:54,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:53:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:53:55,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1694 backedges. 0 proven. 1694 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:53:55,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:53:55,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864857525] [2023-12-09 14:53:55,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864857525] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 14:53:55,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816451328] [2023-12-09 14:53:55,699 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-09 14:53:55,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 14:53:55,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:53:55,700 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 14:53:55,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-09 14:53:55,823 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2023-12-09 14:53:55,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 14:53:55,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 45 conjunts are in the unsatisfiable core [2023-12-09 14:53:55,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 14:53:56,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1694 backedges. 0 proven. 1694 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:53:56,268 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 14:53:56,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1694 backedges. 0 proven. 1694 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:53:56,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816451328] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 14:53:56,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 14:53:56,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 49 [2023-12-09 14:53:56,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152034808] [2023-12-09 14:53:56,959 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 14:53:56,959 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-12-09 14:53:56,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:53:56,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-12-09 14:53:56,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=562, Invalid=1790, Unknown=0, NotChecked=0, Total=2352 [2023-12-09 14:53:56,961 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2023-12-09 14:53:56,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 855 places, 12475 transitions, 447409 flow. Second operand has 49 states, 49 states have (on average 53.204081632653065) internal successors, (2607), 49 states have internal predecessors, (2607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:53:56,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:53:56,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2023-12-09 14:53:56,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-12-09 14:55:03,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2023-12-09 14:55:03,415 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-12-09 14:55:03,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-09 14:55:03,435 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 14:55:03,435 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 14:55:03,622 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-09 14:55:03,622 WARN L624 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 120 known predicates. [2023-12-09 14:55:03,623 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-12-09 14:55:03,624 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-12-09 14:55:03,624 INFO L457 BasicCegarLoop]: Path program histogram: [11, 2, 2, 1, 1, 1] [2023-12-09 14:55:03,630 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 14:55:03,630 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 14:55:03,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:55:03 BasicIcfg [2023-12-09 14:55:03,633 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 14:55:03,634 INFO L158 Benchmark]: Toolchain (without parser) took 261779.65ms. Allocated memory was 223.3MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 184.4MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-09 14:55:03,634 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 178.3MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 14:55:03,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.25ms. Allocated memory is still 223.3MB. Free memory was 184.4MB in the beginning and 164.5MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-09 14:55:03,634 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.27ms. Allocated memory is still 223.3MB. Free memory was 164.5MB in the beginning and 162.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 14:55:03,634 INFO L158 Benchmark]: Boogie Preprocessor took 28.82ms. Allocated memory is still 223.3MB. Free memory was 162.4MB in the beginning and 161.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 14:55:03,634 INFO L158 Benchmark]: RCFGBuilder took 252.59ms. Allocated memory is still 223.3MB. Free memory was 161.3MB in the beginning and 148.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-09 14:55:03,635 INFO L158 Benchmark]: TraceAbstraction took 261049.58ms. Allocated memory was 223.3MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 147.7MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-09 14:55:03,636 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 178.3MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 396.25ms. Allocated memory is still 223.3MB. Free memory was 184.4MB in the beginning and 164.5MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.27ms. Allocated memory is still 223.3MB. Free memory was 164.5MB in the beginning and 162.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.82ms. Allocated memory is still 223.3MB. Free memory was 162.4MB in the beginning and 161.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 252.59ms. Allocated memory is still 223.3MB. Free memory was 161.3MB in the beginning and 148.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 261049.58ms. Allocated memory was 223.3MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 147.7MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 722]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 120 known predicates. - TimeoutResultAtElement [Line: 713]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 120 known predicates. - TimeoutResultAtElement [Line: 714]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 120 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 88 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: 261.0s, OverallIterations: 18, TraceHistogramMax: 20, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 244.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7416 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7416 mSDsluCounter, 554 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 428 mSDsCounter, 471 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4226 IncrementalHoareTripleChecker+Invalid, 4697 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 471 mSolverCounterUnsat, 126 mSDtfsCounter, 4226 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3528 GetRequests, 2347 SyntacticMatches, 0 SemanticMatches, 1180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45318 ImplicationChecksByTransitivity, 14.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=447409occurred in iteration=17, InterpolantAutomatonStates: 805, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 12.2s InterpolantComputationTime, 2710 NumberOfCodeBlocks, 2705 NumberOfCodeBlocksAsserted, 77 NumberOfCheckSat, 3919 ConstructedInterpolants, 0 QuantifiedInterpolants, 17827 SizeOfPredicates, 188 NumberOfNonLiveVariables, 2668 ConjunctsInSsa, 248 ConjunctsInUnsatCore, 42 InterpolantComputations, 6 PerfectInterpolantSequences, 120/13014 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