/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-wmm/safe017_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 14:57:15,748 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 14:57:15,815 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 14:57:15,848 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 14:57:15,849 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 14:57:15,849 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 14:57:15,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 14:57:15,850 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 14:57:15,850 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 14:57:15,853 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 14:57:15,853 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 14:57:15,853 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 14:57:15,853 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 14:57:15,854 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 14:57:15,855 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 14:57:15,855 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 14:57:15,855 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 14:57:15,855 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 14:57:15,855 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 14:57:15,855 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 14:57:15,856 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 14:57:15,856 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 14:57:15,856 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 14:57:15,856 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 14:57:15,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 14:57:15,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:57:15,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 14:57:15,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 14:57:15,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 14:57:15,858 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 14:57:15,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 14:57:15,859 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 14:57:15,859 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 14:57:15,859 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 14:57:16,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 14:57:16,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 14:57:16,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 14:57:16,105 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 14:57:16,105 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 14:57:16,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.i [2023-12-09 14:57:17,175 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 14:57:17,342 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 14:57:17,342 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.i [2023-12-09 14:57:17,361 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d48daeba/24c0a8fdb8f3450dbc7bf6d38e95c219/FLAGa787575c1 [2023-12-09 14:57:17,370 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d48daeba/24c0a8fdb8f3450dbc7bf6d38e95c219 [2023-12-09 14:57:17,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 14:57:17,374 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 14:57:17,374 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 14:57:17,374 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 14:57:17,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 14:57:17,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:57:17" (1/1) ... [2023-12-09 14:57:17,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6076cb94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:17, skipping insertion in model container [2023-12-09 14:57:17,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:57:17" (1/1) ... [2023-12-09 14:57:17,425 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 14:57:17,549 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-wmm/safe017_tso.i[945,958] [2023-12-09 14:57:17,649 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:57:17,656 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 14:57:17,664 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-wmm/safe017_tso.i[945,958] [2023-12-09 14:57:17,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:57:17,705 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:57:17,706 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:57:17,711 INFO L206 MainTranslator]: Completed translation [2023-12-09 14:57:17,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:17 WrapperNode [2023-12-09 14:57:17,711 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 14:57:17,713 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 14:57:17,713 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 14:57:17,713 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 14:57:17,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:17" (1/1) ... [2023-12-09 14:57:17,734 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:17" (1/1) ... [2023-12-09 14:57:17,751 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2023-12-09 14:57:17,752 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 14:57:17,752 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 14:57:17,752 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 14:57:17,752 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 14:57:17,758 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:17" (1/1) ... [2023-12-09 14:57:17,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:17" (1/1) ... [2023-12-09 14:57:17,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:17" (1/1) ... [2023-12-09 14:57:17,760 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:17" (1/1) ... [2023-12-09 14:57:17,762 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:17" (1/1) ... [2023-12-09 14:57:17,763 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:17" (1/1) ... [2023-12-09 14:57:17,765 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:17" (1/1) ... [2023-12-09 14:57:17,766 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:17" (1/1) ... [2023-12-09 14:57:17,767 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 14:57:17,768 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 14:57:17,768 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 14:57:17,768 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 14:57:17,768 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:17" (1/1) ... [2023-12-09 14:57:17,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:57:17,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:57:17,791 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 14:57:17,801 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 14:57:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 14:57:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 14:57:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 14:57:17,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 14:57:17,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 14:57:17,817 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-09 14:57:17,817 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-09 14:57:17,817 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-09 14:57:17,818 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-09 14:57:17,818 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-09 14:57:17,818 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-09 14:57:17,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 14:57:17,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 14:57:17,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 14:57:17,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 14:57:17,819 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 14:57:17,933 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 14:57:17,935 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 14:57:18,059 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 14:57:18,070 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 14:57:18,071 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 14:57:18,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:57:18 BoogieIcfgContainer [2023-12-09 14:57:18,072 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 14:57:18,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 14:57:18,073 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 14:57:18,076 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 14:57:18,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:57:17" (1/3) ... [2023-12-09 14:57:18,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576a8e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:57:18, skipping insertion in model container [2023-12-09 14:57:18,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:17" (2/3) ... [2023-12-09 14:57:18,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576a8e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:57:18, skipping insertion in model container [2023-12-09 14:57:18,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:57:18" (3/3) ... [2023-12-09 14:57:18,077 INFO L112 eAbstractionObserver]: Analyzing ICFG safe017_tso.i [2023-12-09 14:57:18,090 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 14:57:18,090 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 14:57:18,090 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 14:57:18,127 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:57:18,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 89 transitions, 190 flow [2023-12-09 14:57:18,194 INFO L124 PetriNetUnfolderBase]: 2/86 cut-off events. [2023-12-09 14:57:18,195 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:57:18,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 86 events. 2/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-12-09 14:57:18,199 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 89 transitions, 190 flow [2023-12-09 14:57:18,201 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 71 transitions, 151 flow [2023-12-09 14:57:18,213 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:57:18,218 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;@15022820, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:57:18,218 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-09 14:57:18,235 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:57:18,240 INFO L124 PetriNetUnfolderBase]: 1/70 cut-off events. [2023-12-09 14:57:18,240 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:57:18,240 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:18,241 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:18,241 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:57:18,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:18,245 INFO L85 PathProgramCache]: Analyzing trace with hash -24652028, now seen corresponding path program 1 times [2023-12-09 14:57:18,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:18,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457002657] [2023-12-09 14:57:18,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:18,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:18,850 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 14:57:18,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:18,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457002657] [2023-12-09 14:57:18,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457002657] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:18,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:18,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:18,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453486213] [2023-12-09 14:57:18,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:18,859 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:18,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:18,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:18,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:18,889 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 89 [2023-12-09 14:57:18,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 71 transitions, 151 flow. Second operand has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 0 states have call successors, (0), 0 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 14:57:18,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:18,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 89 [2023-12-09 14:57:18,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:19,267 INFO L124 PetriNetUnfolderBase]: 303/836 cut-off events. [2023-12-09 14:57:19,267 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-12-09 14:57:19,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1387 conditions, 836 events. 303/836 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 5066 event pairs, 31 based on Foata normal form. 29/836 useless extension candidates. Maximal degree in co-relation 1356. Up to 135 conditions per place. [2023-12-09 14:57:19,277 INFO L140 encePairwiseOnDemand]: 78/89 looper letters, 22 selfloop transitions, 6 changer transitions 47/128 dead transitions. [2023-12-09 14:57:19,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 128 transitions, 415 flow [2023-12-09 14:57:19,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:19,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:19,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 939 transitions. [2023-12-09 14:57:19,295 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8115816767502161 [2023-12-09 14:57:19,297 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 939 transitions. [2023-12-09 14:57:19,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 939 transitions. [2023-12-09 14:57:19,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:19,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 939 transitions. [2023-12-09 14:57:19,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.23076923076923) internal successors, (939), 13 states have internal predecessors, (939), 0 states have call successors, (0), 0 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 14:57:19,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 89.0) internal successors, (1246), 14 states have internal predecessors, (1246), 0 states have call successors, (0), 0 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 14:57:19,312 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 89.0) internal successors, (1246), 14 states have internal predecessors, (1246), 0 states have call successors, (0), 0 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 14:57:19,315 INFO L308 CegarLoopForPetriNet]: 80 programPoint places, 12 predicate places. [2023-12-09 14:57:19,315 INFO L500 AbstractCegarLoop]: Abstraction has has 92 places, 128 transitions, 415 flow [2023-12-09 14:57:19,316 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 0 states have call successors, (0), 0 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 14:57:19,316 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:19,316 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:19,316 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 14:57:19,316 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:57:19,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:19,317 INFO L85 PathProgramCache]: Analyzing trace with hash -167071515, now seen corresponding path program 1 times [2023-12-09 14:57:19,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:19,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558171008] [2023-12-09 14:57:19,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:19,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:19,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:19,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:19,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:19,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558171008] [2023-12-09 14:57:19,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558171008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:19,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:19,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:19,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624585121] [2023-12-09 14:57:19,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:19,599 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:19,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:19,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:19,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:19,601 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 89 [2023-12-09 14:57:19,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 128 transitions, 415 flow. Second operand has 7 states, 7 states have (on average 67.85714285714286) internal successors, (475), 7 states have internal predecessors, (475), 0 states have call successors, (0), 0 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 14:57:19,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:19,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 89 [2023-12-09 14:57:19,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:19,915 INFO L124 PetriNetUnfolderBase]: 374/1179 cut-off events. [2023-12-09 14:57:19,916 INFO L125 PetriNetUnfolderBase]: For 69/233 co-relation queries the response was YES. [2023-12-09 14:57:19,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2585 conditions, 1179 events. 374/1179 cut-off events. For 69/233 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 8567 event pairs, 7 based on Foata normal form. 32/1196 useless extension candidates. Maximal degree in co-relation 2548. Up to 159 conditions per place. [2023-12-09 14:57:19,922 INFO L140 encePairwiseOnDemand]: 78/89 looper letters, 28 selfloop transitions, 15 changer transitions 195/291 dead transitions. [2023-12-09 14:57:19,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 291 transitions, 1552 flow [2023-12-09 14:57:19,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:19,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:19,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 951 transitions. [2023-12-09 14:57:19,925 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8219533275713051 [2023-12-09 14:57:19,925 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 951 transitions. [2023-12-09 14:57:19,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 951 transitions. [2023-12-09 14:57:19,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:19,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 951 transitions. [2023-12-09 14:57:19,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.15384615384616) internal successors, (951), 13 states have internal predecessors, (951), 0 states have call successors, (0), 0 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 14:57:19,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 89.0) internal successors, (1246), 14 states have internal predecessors, (1246), 0 states have call successors, (0), 0 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 14:57:19,930 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 89.0) internal successors, (1246), 14 states have internal predecessors, (1246), 0 states have call successors, (0), 0 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 14:57:19,931 INFO L308 CegarLoopForPetriNet]: 80 programPoint places, 24 predicate places. [2023-12-09 14:57:19,931 INFO L500 AbstractCegarLoop]: Abstraction has has 104 places, 291 transitions, 1552 flow [2023-12-09 14:57:19,931 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.85714285714286) internal successors, (475), 7 states have internal predecessors, (475), 0 states have call successors, (0), 0 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 14:57:19,931 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:19,931 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:19,932 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 14:57:19,932 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:57:19,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:19,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1470890460, now seen corresponding path program 1 times [2023-12-09 14:57:19,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:19,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079980784] [2023-12-09 14:57:19,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:19,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:20,132 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 14:57:20,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:20,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079980784] [2023-12-09 14:57:20,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079980784] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:20,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:20,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:20,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763105247] [2023-12-09 14:57:20,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:20,134 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:20,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:20,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:20,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:20,139 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 89 [2023-12-09 14:57:20,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 291 transitions, 1552 flow. Second operand has 7 states, 7 states have (on average 68.0) internal successors, (476), 7 states have internal predecessors, (476), 0 states have call successors, (0), 0 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 14:57:20,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:20,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 89 [2023-12-09 14:57:20,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:20,476 INFO L124 PetriNetUnfolderBase]: 546/1844 cut-off events. [2023-12-09 14:57:20,476 INFO L125 PetriNetUnfolderBase]: For 212/657 co-relation queries the response was YES. [2023-12-09 14:57:20,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4942 conditions, 1844 events. 546/1844 cut-off events. For 212/657 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 16186 event pairs, 5 based on Foata normal form. 51/1884 useless extension candidates. Maximal degree in co-relation 4899. Up to 250 conditions per place. [2023-12-09 14:57:20,484 INFO L140 encePairwiseOnDemand]: 78/89 looper letters, 33 selfloop transitions, 20 changer transitions 442/548 dead transitions. [2023-12-09 14:57:20,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 548 transitions, 4093 flow [2023-12-09 14:57:20,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:20,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:20,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 948 transitions. [2023-12-09 14:57:20,487 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8193604148660328 [2023-12-09 14:57:20,487 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 948 transitions. [2023-12-09 14:57:20,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 948 transitions. [2023-12-09 14:57:20,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:20,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 948 transitions. [2023-12-09 14:57:20,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.92307692307692) internal successors, (948), 13 states have internal predecessors, (948), 0 states have call successors, (0), 0 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 14:57:20,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 89.0) internal successors, (1246), 14 states have internal predecessors, (1246), 0 states have call successors, (0), 0 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 14:57:20,491 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 89.0) internal successors, (1246), 14 states have internal predecessors, (1246), 0 states have call successors, (0), 0 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 14:57:20,492 INFO L308 CegarLoopForPetriNet]: 80 programPoint places, 36 predicate places. [2023-12-09 14:57:20,492 INFO L500 AbstractCegarLoop]: Abstraction has has 116 places, 548 transitions, 4093 flow [2023-12-09 14:57:20,493 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.0) internal successors, (476), 7 states have internal predecessors, (476), 0 states have call successors, (0), 0 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 14:57:20,493 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:20,493 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:20,493 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 14:57:20,493 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:57:20,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:20,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1627484302, now seen corresponding path program 1 times [2023-12-09 14:57:20,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:20,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518316447] [2023-12-09 14:57:20,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:20,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:20,642 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 14:57:20,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:20,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518316447] [2023-12-09 14:57:20,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518316447] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:20,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:20,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:20,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889883604] [2023-12-09 14:57:20,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:20,646 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:20,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:20,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:20,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:20,648 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 89 [2023-12-09 14:57:20,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 548 transitions, 4093 flow. Second operand has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 0 states have call successors, (0), 0 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 14:57:20,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:20,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 89 [2023-12-09 14:57:20,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:20,974 INFO L124 PetriNetUnfolderBase]: 550/1897 cut-off events. [2023-12-09 14:57:20,974 INFO L125 PetriNetUnfolderBase]: For 424/2230 co-relation queries the response was YES. [2023-12-09 14:57:20,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6263 conditions, 1897 events. 550/1897 cut-off events. For 424/2230 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 17184 event pairs, 0 based on Foata normal form. 52/1937 useless extension candidates. Maximal degree in co-relation 6214. Up to 322 conditions per place. [2023-12-09 14:57:20,983 INFO L140 encePairwiseOnDemand]: 79/89 looper letters, 38 selfloop transitions, 19 changer transitions 514/624 dead transitions. [2023-12-09 14:57:20,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 624 transitions, 5843 flow [2023-12-09 14:57:20,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:20,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:20,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 944 transitions. [2023-12-09 14:57:20,985 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8159031979256698 [2023-12-09 14:57:20,985 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 944 transitions. [2023-12-09 14:57:20,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 944 transitions. [2023-12-09 14:57:20,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:20,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 944 transitions. [2023-12-09 14:57:20,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.61538461538461) internal successors, (944), 13 states have internal predecessors, (944), 0 states have call successors, (0), 0 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 14:57:20,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 89.0) internal successors, (1246), 14 states have internal predecessors, (1246), 0 states have call successors, (0), 0 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 14:57:20,989 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 89.0) internal successors, (1246), 14 states have internal predecessors, (1246), 0 states have call successors, (0), 0 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 14:57:20,990 INFO L308 CegarLoopForPetriNet]: 80 programPoint places, 48 predicate places. [2023-12-09 14:57:20,990 INFO L500 AbstractCegarLoop]: Abstraction has has 128 places, 624 transitions, 5843 flow [2023-12-09 14:57:20,990 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 0 states have call successors, (0), 0 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 14:57:20,990 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:20,990 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:20,990 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 14:57:20,991 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:57:20,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:20,991 INFO L85 PathProgramCache]: Analyzing trace with hash -656011707, now seen corresponding path program 1 times [2023-12-09 14:57:20,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:20,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924525188] [2023-12-09 14:57:20,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:20,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:21,117 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 14:57:21,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:21,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924525188] [2023-12-09 14:57:21,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924525188] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:21,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:21,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 14:57:21,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697502242] [2023-12-09 14:57:21,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:21,119 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 14:57:21,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:21,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 14:57:21,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-09 14:57:21,120 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 89 [2023-12-09 14:57:21,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 624 transitions, 5843 flow. Second operand has 8 states, 8 states have (on average 67.875) internal successors, (543), 8 states have internal predecessors, (543), 0 states have call successors, (0), 0 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 14:57:21,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:21,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 89 [2023-12-09 14:57:21,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:21,579 INFO L124 PetriNetUnfolderBase]: 645/2332 cut-off events. [2023-12-09 14:57:21,579 INFO L125 PetriNetUnfolderBase]: For 925/3951 co-relation queries the response was YES. [2023-12-09 14:57:21,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8988 conditions, 2332 events. 645/2332 cut-off events. For 925/3951 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 22469 event pairs, 0 based on Foata normal form. 77/2396 useless extension candidates. Maximal degree in co-relation 8933. Up to 379 conditions per place. [2023-12-09 14:57:21,589 INFO L140 encePairwiseOnDemand]: 78/89 looper letters, 31 selfloop transitions, 14 changer transitions 655/753 dead transitions. [2023-12-09 14:57:21,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 753 transitions, 8533 flow [2023-12-09 14:57:21,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 14:57:21,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 14:57:21,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1228 transitions. [2023-12-09 14:57:21,593 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8116325181758096 [2023-12-09 14:57:21,593 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1228 transitions. [2023-12-09 14:57:21,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1228 transitions. [2023-12-09 14:57:21,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:21,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1228 transitions. [2023-12-09 14:57:21,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 72.23529411764706) internal successors, (1228), 17 states have internal predecessors, (1228), 0 states have call successors, (0), 0 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 14:57:21,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 89.0) internal successors, (1602), 18 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:21,600 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 89.0) internal successors, (1602), 18 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:21,601 INFO L308 CegarLoopForPetriNet]: 80 programPoint places, 64 predicate places. [2023-12-09 14:57:21,601 INFO L500 AbstractCegarLoop]: Abstraction has has 144 places, 753 transitions, 8533 flow [2023-12-09 14:57:21,601 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 67.875) internal successors, (543), 8 states have internal predecessors, (543), 0 states have call successors, (0), 0 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 14:57:21,601 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:21,602 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:21,602 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 14:57:21,602 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:57:21,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:21,603 INFO L85 PathProgramCache]: Analyzing trace with hash 41909733, now seen corresponding path program 1 times [2023-12-09 14:57:21,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:21,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776881247] [2023-12-09 14:57:21,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:21,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:21,725 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 14:57:21,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:21,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776881247] [2023-12-09 14:57:21,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776881247] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:21,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:21,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:57:21,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857573620] [2023-12-09 14:57:21,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:21,727 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:57:21,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:21,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:57:21,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:57:21,729 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 89 [2023-12-09 14:57:21,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 753 transitions, 8533 flow. Second operand has 6 states, 6 states have (on average 72.0) internal successors, (432), 6 states have internal predecessors, (432), 0 states have call successors, (0), 0 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 14:57:21,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:21,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 89 [2023-12-09 14:57:21,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:22,228 INFO L124 PetriNetUnfolderBase]: 1580/4420 cut-off events. [2023-12-09 14:57:22,228 INFO L125 PetriNetUnfolderBase]: For 1802/2277 co-relation queries the response was YES. [2023-12-09 14:57:22,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13138 conditions, 4420 events. 1580/4420 cut-off events. For 1802/2277 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 44144 event pairs, 38 based on Foata normal form. 28/4230 useless extension candidates. Maximal degree in co-relation 13079. Up to 1165 conditions per place. [2023-12-09 14:57:22,253 INFO L140 encePairwiseOnDemand]: 79/89 looper letters, 30 selfloop transitions, 15 changer transitions 323/508 dead transitions. [2023-12-09 14:57:22,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 508 transitions, 5417 flow [2023-12-09 14:57:22,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 14:57:22,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 14:57:22,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 750 transitions. [2023-12-09 14:57:22,255 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8426966292134831 [2023-12-09 14:57:22,255 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 750 transitions. [2023-12-09 14:57:22,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 750 transitions. [2023-12-09 14:57:22,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:22,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 750 transitions. [2023-12-09 14:57:22,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 75.0) internal successors, (750), 10 states have internal predecessors, (750), 0 states have call successors, (0), 0 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 14:57:22,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 89.0) internal successors, (979), 11 states have internal predecessors, (979), 0 states have call successors, (0), 0 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 14:57:22,259 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 89.0) internal successors, (979), 11 states have internal predecessors, (979), 0 states have call successors, (0), 0 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 14:57:22,261 INFO L308 CegarLoopForPetriNet]: 80 programPoint places, 73 predicate places. [2023-12-09 14:57:22,261 INFO L500 AbstractCegarLoop]: Abstraction has has 153 places, 508 transitions, 5417 flow [2023-12-09 14:57:22,261 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.0) internal successors, (432), 6 states have internal predecessors, (432), 0 states have call successors, (0), 0 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 14:57:22,261 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:22,261 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:22,262 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 14:57:22,262 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:57:22,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:22,262 INFO L85 PathProgramCache]: Analyzing trace with hash -2020375866, now seen corresponding path program 1 times [2023-12-09 14:57:22,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:22,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163841112] [2023-12-09 14:57:22,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:22,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:22,383 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 14:57:22,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:22,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163841112] [2023-12-09 14:57:22,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163841112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:22,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:22,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:22,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240420068] [2023-12-09 14:57:22,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:22,387 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:22,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:22,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:22,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:22,389 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 89 [2023-12-09 14:57:22,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 508 transitions, 5417 flow. Second operand has 7 states, 7 states have (on average 71.85714285714286) internal successors, (503), 7 states have internal predecessors, (503), 0 states have call successors, (0), 0 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 14:57:22,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:22,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 89 [2023-12-09 14:57:22,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:22,798 INFO L124 PetriNetUnfolderBase]: 1041/2954 cut-off events. [2023-12-09 14:57:22,798 INFO L125 PetriNetUnfolderBase]: For 1476/2265 co-relation queries the response was YES. [2023-12-09 14:57:22,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8768 conditions, 2954 events. 1041/2954 cut-off events. For 1476/2265 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 28099 event pairs, 0 based on Foata normal form. 168/2945 useless extension candidates. Maximal degree in co-relation 8705. Up to 865 conditions per place. [2023-12-09 14:57:22,810 INFO L140 encePairwiseOnDemand]: 79/89 looper letters, 34 selfloop transitions, 17 changer transitions 187/311 dead transitions. [2023-12-09 14:57:22,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 311 transitions, 2903 flow [2023-12-09 14:57:22,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:22,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:22,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 975 transitions. [2023-12-09 14:57:22,812 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8426966292134831 [2023-12-09 14:57:22,812 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 975 transitions. [2023-12-09 14:57:22,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 975 transitions. [2023-12-09 14:57:22,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:22,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 975 transitions. [2023-12-09 14:57:22,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 75.0) internal successors, (975), 13 states have internal predecessors, (975), 0 states have call successors, (0), 0 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 14:57:22,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 89.0) internal successors, (1246), 14 states have internal predecessors, (1246), 0 states have call successors, (0), 0 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 14:57:22,816 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 89.0) internal successors, (1246), 14 states have internal predecessors, (1246), 0 states have call successors, (0), 0 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 14:57:22,817 INFO L308 CegarLoopForPetriNet]: 80 programPoint places, 76 predicate places. [2023-12-09 14:57:22,817 INFO L500 AbstractCegarLoop]: Abstraction has has 156 places, 311 transitions, 2903 flow [2023-12-09 14:57:22,817 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 71.85714285714286) internal successors, (503), 7 states have internal predecessors, (503), 0 states have call successors, (0), 0 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 14:57:22,817 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:22,817 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:22,817 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 14:57:22,817 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:57:22,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:22,818 INFO L85 PathProgramCache]: Analyzing trace with hash 453453805, now seen corresponding path program 1 times [2023-12-09 14:57:22,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:22,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622346493] [2023-12-09 14:57:22,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:22,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:22,949 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 14:57:22,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:22,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622346493] [2023-12-09 14:57:22,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622346493] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:22,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:22,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 14:57:22,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238993328] [2023-12-09 14:57:22,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:22,951 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 14:57:22,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:22,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 14:57:22,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-09 14:57:22,952 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 89 [2023-12-09 14:57:22,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 311 transitions, 2903 flow. Second operand has 8 states, 8 states have (on average 71.75) internal successors, (574), 8 states have internal predecessors, (574), 0 states have call successors, (0), 0 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 14:57:22,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:22,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 89 [2023-12-09 14:57:22,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:23,365 INFO L124 PetriNetUnfolderBase]: 921/2482 cut-off events. [2023-12-09 14:57:23,366 INFO L125 PetriNetUnfolderBase]: For 1860/3232 co-relation queries the response was YES. [2023-12-09 14:57:23,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8507 conditions, 2482 events. 921/2482 cut-off events. For 1860/3232 co-relation queries the response was YES. Maximal size of possible extension queue 368. Compared 23654 event pairs, 0 based on Foata normal form. 217/2546 useless extension candidates. Maximal degree in co-relation 8440. Up to 738 conditions per place. [2023-12-09 14:57:23,374 INFO L140 encePairwiseOnDemand]: 79/89 looper letters, 18 selfloop transitions, 14 changer transitions 150/236 dead transitions. [2023-12-09 14:57:23,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 236 transitions, 2119 flow [2023-12-09 14:57:23,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 14:57:23,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 14:57:23,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1184 transitions. [2023-12-09 14:57:23,377 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8314606741573034 [2023-12-09 14:57:23,378 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1184 transitions. [2023-12-09 14:57:23,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1184 transitions. [2023-12-09 14:57:23,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:23,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1184 transitions. [2023-12-09 14:57:23,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 74.0) internal successors, (1184), 16 states have internal predecessors, (1184), 0 states have call successors, (0), 0 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 14:57:23,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 89.0) internal successors, (1513), 17 states have internal predecessors, (1513), 0 states have call successors, (0), 0 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 14:57:23,383 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 89.0) internal successors, (1513), 17 states have internal predecessors, (1513), 0 states have call successors, (0), 0 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 14:57:23,383 INFO L308 CegarLoopForPetriNet]: 80 programPoint places, 73 predicate places. [2023-12-09 14:57:23,383 INFO L500 AbstractCegarLoop]: Abstraction has has 153 places, 236 transitions, 2119 flow [2023-12-09 14:57:23,383 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 71.75) internal successors, (574), 8 states have internal predecessors, (574), 0 states have call successors, (0), 0 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 14:57:23,383 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:23,384 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:23,384 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 14:57:23,384 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:57:23,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:23,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1963091313, now seen corresponding path program 1 times [2023-12-09 14:57:23,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:23,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17267503] [2023-12-09 14:57:23,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:23,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:23,498 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 14:57:23,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:23,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17267503] [2023-12-09 14:57:23,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17267503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:23,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:23,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:23,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969450279] [2023-12-09 14:57:23,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:23,499 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:23,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:23,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:23,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:23,500 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 89 [2023-12-09 14:57:23,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 236 transitions, 2119 flow. Second operand has 7 states, 7 states have (on average 68.42857142857143) internal successors, (479), 7 states have internal predecessors, (479), 0 states have call successors, (0), 0 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 14:57:23,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:23,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 89 [2023-12-09 14:57:23,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:23,833 INFO L124 PetriNetUnfolderBase]: 1193/3261 cut-off events. [2023-12-09 14:57:23,834 INFO L125 PetriNetUnfolderBase]: For 2096/2757 co-relation queries the response was YES. [2023-12-09 14:57:23,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11077 conditions, 3261 events. 1193/3261 cut-off events. For 2096/2757 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 32848 event pairs, 0 based on Foata normal form. 26/3138 useless extension candidates. Maximal degree in co-relation 11004. Up to 962 conditions per place. [2023-12-09 14:57:23,850 INFO L140 encePairwiseOnDemand]: 79/89 looper letters, 0 selfloop transitions, 0 changer transitions 248/248 dead transitions. [2023-12-09 14:57:23,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 248 transitions, 2467 flow [2023-12-09 14:57:23,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 14:57:23,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 14:57:23,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 694 transitions. [2023-12-09 14:57:23,852 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7797752808988764 [2023-12-09 14:57:23,852 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 694 transitions. [2023-12-09 14:57:23,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 694 transitions. [2023-12-09 14:57:23,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:23,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 694 transitions. [2023-12-09 14:57:23,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 69.4) internal successors, (694), 10 states have internal predecessors, (694), 0 states have call successors, (0), 0 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 14:57:23,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 89.0) internal successors, (979), 11 states have internal predecessors, (979), 0 states have call successors, (0), 0 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 14:57:23,856 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 89.0) internal successors, (979), 11 states have internal predecessors, (979), 0 states have call successors, (0), 0 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 14:57:23,857 INFO L308 CegarLoopForPetriNet]: 80 programPoint places, 80 predicate places. [2023-12-09 14:57:23,857 INFO L500 AbstractCegarLoop]: Abstraction has has 160 places, 248 transitions, 2467 flow [2023-12-09 14:57:23,858 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.42857142857143) internal successors, (479), 7 states have internal predecessors, (479), 0 states have call successors, (0), 0 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 14:57:23,863 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/safe017_tso.i_BEv2_AllErrorsAtOnce [2023-12-09 14:57:23,926 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-12-09 14:57:23,927 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-12-09 14:57:23,927 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-12-09 14:57:23,927 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-12-09 14:57:23,928 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 14:57:23,928 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:23,931 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 14:57:23,931 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 14:57:23,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:57:23 BasicIcfg [2023-12-09 14:57:23,936 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 14:57:23,937 INFO L158 Benchmark]: Toolchain (without parser) took 6563.36ms. Allocated memory was 321.9MB in the beginning and 649.1MB in the end (delta: 327.2MB). Free memory was 270.6MB in the beginning and 341.1MB in the end (delta: -70.5MB). Peak memory consumption was 255.6MB. Max. memory is 8.0GB. [2023-12-09 14:57:23,937 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 218.1MB. Free memory was 169.7MB in the beginning and 169.7MB in the end (delta: 66.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 14:57:23,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.13ms. Allocated memory is still 321.9MB. Free memory was 270.1MB in the beginning and 249.6MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-09 14:57:23,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.21ms. Allocated memory is still 321.9MB. Free memory was 249.6MB in the beginning and 247.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 14:57:23,938 INFO L158 Benchmark]: Boogie Preprocessor took 14.94ms. Allocated memory is still 321.9MB. Free memory was 247.5MB in the beginning and 246.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 14:57:23,939 INFO L158 Benchmark]: RCFGBuilder took 304.21ms. Allocated memory is still 321.9MB. Free memory was 246.0MB in the beginning and 231.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-09 14:57:23,939 INFO L158 Benchmark]: TraceAbstraction took 5863.10ms. Allocated memory was 321.9MB in the beginning and 649.1MB in the end (delta: 327.2MB). Free memory was 231.3MB in the beginning and 341.1MB in the end (delta: -109.8MB). Peak memory consumption was 216.8MB. Max. memory is 8.0GB. [2023-12-09 14:57:23,940 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 218.1MB. Free memory was 169.7MB in the beginning and 169.7MB in the end (delta: 66.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 337.13ms. Allocated memory is still 321.9MB. Free memory was 270.1MB in the beginning and 249.6MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.21ms. Allocated memory is still 321.9MB. Free memory was 249.6MB in the beginning and 247.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.94ms. Allocated memory is still 321.9MB. Free memory was 247.5MB in the beginning and 246.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 304.21ms. Allocated memory is still 321.9MB. Free memory was 246.0MB in the beginning and 231.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 5863.10ms. Allocated memory was 321.9MB in the beginning and 649.1MB in the end (delta: 327.2MB). Free memory was 231.3MB in the beginning and 341.1MB in the end (delta: -109.8MB). Peak memory consumption was 216.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 114 locations, 4 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: 5.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 544 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 544 mSDsluCounter, 734 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 558 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 676 IncrementalHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 176 mSDtfsCounter, 676 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8533occurred in iteration=5, InterpolantAutomatonStates: 118, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 496 NumberOfCodeBlocks, 496 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 487 ConstructedInterpolants, 0 QuantifiedInterpolants, 2101 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-09 14:57:23,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...