/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/rfi000_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 14:55:52,221 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 14:55:52,267 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 14:55:52,300 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 14:55:52,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 14:55:52,301 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 14:55:52,302 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 14:55:52,302 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 14:55:52,302 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 14:55:52,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 14:55:52,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 14:55:52,306 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 14:55:52,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 14:55:52,306 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 14:55:52,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 14:55:52,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 14:55:52,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 14:55:52,307 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 14:55:52,307 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 14:55:52,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 14:55:52,307 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 14:55:52,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 14:55:52,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 14:55:52,308 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 14:55:52,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 14:55:52,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:55:52,308 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 14:55:52,308 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 14:55:52,309 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 14:55:52,309 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 14:55:52,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 14:55:52,309 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 14:55:52,310 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 14:55:52,310 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 14:55:52,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 14:55:52,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 14:55:52,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 14:55:52,508 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 14:55:52,509 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 14:55:52,510 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2023-12-09 14:55:53,483 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 14:55:53,717 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 14:55:53,717 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2023-12-09 14:55:53,731 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc73abb5a/8fd34eb186af4c1a95ee9a30a5297726/FLAG502bf5881 [2023-12-09 14:55:53,744 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc73abb5a/8fd34eb186af4c1a95ee9a30a5297726 [2023-12-09 14:55:53,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 14:55:53,748 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 14:55:53,750 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 14:55:53,750 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 14:55:53,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 14:55:53,753 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:55:53" (1/1) ... [2023-12-09 14:55:53,754 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a9a5b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:53, skipping insertion in model container [2023-12-09 14:55:53,755 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:55:53" (1/1) ... [2023-12-09 14:55:53,813 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 14:55:53,930 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/rfi000_tso.i[944,957] [2023-12-09 14:55:54,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:55:54,106 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 14:55:54,114 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/rfi000_tso.i[944,957] [2023-12-09 14:55:54,176 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:55:54,195 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:55:54,195 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:55:54,201 INFO L206 MainTranslator]: Completed translation [2023-12-09 14:55:54,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:54 WrapperNode [2023-12-09 14:55:54,201 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 14:55:54,202 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 14:55:54,202 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 14:55:54,202 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 14:55:54,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:54" (1/1) ... [2023-12-09 14:55:54,221 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:54" (1/1) ... [2023-12-09 14:55:54,249 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 169 [2023-12-09 14:55:54,249 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 14:55:54,250 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 14:55:54,250 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 14:55:54,250 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 14:55:54,259 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:54" (1/1) ... [2023-12-09 14:55:54,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:54" (1/1) ... [2023-12-09 14:55:54,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:54" (1/1) ... [2023-12-09 14:55:54,263 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:54" (1/1) ... [2023-12-09 14:55:54,272 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:54" (1/1) ... [2023-12-09 14:55:54,274 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:54" (1/1) ... [2023-12-09 14:55:54,276 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:54" (1/1) ... [2023-12-09 14:55:54,277 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:54" (1/1) ... [2023-12-09 14:55:54,279 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 14:55:54,280 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 14:55:54,280 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 14:55:54,280 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 14:55:54,280 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:54" (1/1) ... [2023-12-09 14:55:54,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:55:54,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:55:54,317 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 14:55:54,325 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 14:55:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 14:55:54,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 14:55:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 14:55:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 14:55:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 14:55:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-09 14:55:54,373 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-09 14:55:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-09 14:55:54,373 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-09 14:55:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 14:55:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 14:55:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 14:55:54,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 14:55:54,375 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 14:55:54,497 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 14:55:54,498 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 14:55:54,741 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 14:55:54,860 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 14:55:54,860 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 14:55:54,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:55:54 BoogieIcfgContainer [2023-12-09 14:55:54,861 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 14:55:54,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 14:55:54,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 14:55:54,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 14:55:54,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:55:53" (1/3) ... [2023-12-09 14:55:54,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d981d55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:55:54, skipping insertion in model container [2023-12-09 14:55:54,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:54" (2/3) ... [2023-12-09 14:55:54,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d981d55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:55:54, skipping insertion in model container [2023-12-09 14:55:54,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:55:54" (3/3) ... [2023-12-09 14:55:54,867 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2023-12-09 14:55:54,879 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 14:55:54,879 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-09 14:55:54,879 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 14:55:54,909 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:55:54,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 93 transitions, 194 flow [2023-12-09 14:55:54,978 INFO L124 PetriNetUnfolderBase]: 2/91 cut-off events. [2023-12-09 14:55:54,978 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:55:54,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 91 events. 2/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2023-12-09 14:55:54,983 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 93 transitions, 194 flow [2023-12-09 14:55:54,986 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 91 transitions, 188 flow [2023-12-09 14:55:54,999 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:55:55,004 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;@48babbf0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:55:55,005 INFO L363 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-12-09 14:55:55,026 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:55:55,026 INFO L124 PetriNetUnfolderBase]: 0/54 cut-off events. [2023-12-09 14:55:55,026 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:55:55,026 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:55:55,027 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] [2023-12-09 14:55:55,027 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:55:55,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:55:55,032 INFO L85 PathProgramCache]: Analyzing trace with hash -436960994, now seen corresponding path program 1 times [2023-12-09 14:55:55,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:55:55,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166572337] [2023-12-09 14:55:55,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:55:55,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:55:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:55:55,431 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 14:55:55,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:55:55,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166572337] [2023-12-09 14:55:55,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166572337] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:55:55,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:55:55,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-09 14:55:55,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057810764] [2023-12-09 14:55:55,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:55:55,441 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 14:55:55,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:55:55,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 14:55:55,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 14:55:55,466 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 93 [2023-12-09 14:55:55,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 91 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 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 14:55:55,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:55:55,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 93 [2023-12-09 14:55:55,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:55:55,616 INFO L124 PetriNetUnfolderBase]: 31/300 cut-off events. [2023-12-09 14:55:55,616 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 14:55:55,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 300 events. 31/300 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1335 event pairs, 15 based on Foata normal form. 15/296 useless extension candidates. Maximal degree in co-relation 330. Up to 53 conditions per place. [2023-12-09 14:55:55,621 INFO L140 encePairwiseOnDemand]: 88/93 looper letters, 11 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2023-12-09 14:55:55,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 90 transitions, 212 flow [2023-12-09 14:55:55,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 14:55:55,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 14:55:55,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2023-12-09 14:55:55,634 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.9139784946236559 [2023-12-09 14:55:55,635 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2023-12-09 14:55:55,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2023-12-09 14:55:55,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:55:55,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2023-12-09 14:55:55,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 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 14:55:55,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 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 14:55:55,648 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 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 14:55:55,651 INFO L308 CegarLoopForPetriNet]: 96 programPoint places, 0 predicate places. [2023-12-09 14:55:55,651 INFO L500 AbstractCegarLoop]: Abstraction has has 96 places, 90 transitions, 212 flow [2023-12-09 14:55:55,652 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 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 14:55:55,652 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:55:55,652 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] [2023-12-09 14:55:55,652 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 14:55:55,653 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:55:55,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:55:55,653 INFO L85 PathProgramCache]: Analyzing trace with hash -965654164, now seen corresponding path program 1 times [2023-12-09 14:55:55,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:55:55,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004721311] [2023-12-09 14:55:55,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:55:55,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:55:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:55:56,007 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 14:55:56,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:55:56,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004721311] [2023-12-09 14:55:56,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004721311] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:55:56,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:55:56,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:55:56,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426958400] [2023-12-09 14:55:56,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:55:56,009 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:55:56,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:55:56,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:55:56,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:55:56,012 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 93 [2023-12-09 14:55:56,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 90 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 0 states have call successors, (0), 0 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 14:55:56,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:55:56,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 93 [2023-12-09 14:55:56,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:55:56,276 INFO L124 PetriNetUnfolderBase]: 137/464 cut-off events. [2023-12-09 14:55:56,277 INFO L125 PetriNetUnfolderBase]: For 102/176 co-relation queries the response was YES. [2023-12-09 14:55:56,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 464 events. 137/464 cut-off events. For 102/176 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2432 event pairs, 20 based on Foata normal form. 1/453 useless extension candidates. Maximal degree in co-relation 864. Up to 157 conditions per place. [2023-12-09 14:55:56,282 INFO L140 encePairwiseOnDemand]: 85/93 looper letters, 17 selfloop transitions, 2 changer transitions 46/126 dead transitions. [2023-12-09 14:55:56,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 126 transitions, 446 flow [2023-12-09 14:55:56,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 14:55:56,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 14:55:56,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 692 transitions. [2023-12-09 14:55:56,286 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8267622461170848 [2023-12-09 14:55:56,286 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 692 transitions. [2023-12-09 14:55:56,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 692 transitions. [2023-12-09 14:55:56,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:55:56,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 692 transitions. [2023-12-09 14:55:56,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.88888888888889) internal successors, (692), 9 states have internal predecessors, (692), 0 states have call successors, (0), 0 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 14:55:56,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 93.0) internal successors, (930), 10 states have internal predecessors, (930), 0 states have call successors, (0), 0 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 14:55:56,291 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 93.0) internal successors, (930), 10 states have internal predecessors, (930), 0 states have call successors, (0), 0 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 14:55:56,291 INFO L308 CegarLoopForPetriNet]: 96 programPoint places, 8 predicate places. [2023-12-09 14:55:56,292 INFO L500 AbstractCegarLoop]: Abstraction has has 104 places, 126 transitions, 446 flow [2023-12-09 14:55:56,292 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 0 states have call successors, (0), 0 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 14:55:56,292 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:55:56,292 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:55:56,292 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 14:55:56,293 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:55:56,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:55:56,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1071681562, now seen corresponding path program 1 times [2023-12-09 14:55:56,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:55:56,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862950982] [2023-12-09 14:55:56,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:55:56,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:55:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:55:57,112 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 14:55:57,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:55:57,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862950982] [2023-12-09 14:55:57,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862950982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:55:57,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:55:57,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-09 14:55:57,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294854889] [2023-12-09 14:55:57,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:55:57,114 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-09 14:55:57,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:55:57,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-09 14:55:57,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-12-09 14:55:57,117 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 93 [2023-12-09 14:55:57,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 126 transitions, 446 flow. Second operand has 12 states, 12 states have (on average 65.58333333333333) internal successors, (787), 12 states have internal predecessors, (787), 0 states have call successors, (0), 0 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 14:55:57,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:55:57,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 93 [2023-12-09 14:55:57,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:55:57,666 INFO L124 PetriNetUnfolderBase]: 418/1137 cut-off events. [2023-12-09 14:55:57,667 INFO L125 PetriNetUnfolderBase]: For 362/648 co-relation queries the response was YES. [2023-12-09 14:55:57,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2909 conditions, 1137 events. 418/1137 cut-off events. For 362/648 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7440 event pairs, 35 based on Foata normal form. 10/1130 useless extension candidates. Maximal degree in co-relation 2851. Up to 424 conditions per place. [2023-12-09 14:55:57,671 INFO L140 encePairwiseOnDemand]: 78/93 looper letters, 25 selfloop transitions, 14 changer transitions 127/220 dead transitions. [2023-12-09 14:55:57,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 220 transitions, 1193 flow [2023-12-09 14:55:57,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 14:55:57,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 14:55:57,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1379 transitions. [2023-12-09 14:55:57,674 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7413978494623656 [2023-12-09 14:55:57,674 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1379 transitions. [2023-12-09 14:55:57,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1379 transitions. [2023-12-09 14:55:57,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:55:57,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1379 transitions. [2023-12-09 14:55:57,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 68.95) internal successors, (1379), 20 states have internal predecessors, (1379), 0 states have call successors, (0), 0 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 14:55:57,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 93.0) internal successors, (1953), 21 states have internal predecessors, (1953), 0 states have call successors, (0), 0 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 14:55:57,681 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 93.0) internal successors, (1953), 21 states have internal predecessors, (1953), 0 states have call successors, (0), 0 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 14:55:57,682 INFO L308 CegarLoopForPetriNet]: 96 programPoint places, 27 predicate places. [2023-12-09 14:55:57,682 INFO L500 AbstractCegarLoop]: Abstraction has has 123 places, 220 transitions, 1193 flow [2023-12-09 14:55:57,682 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.58333333333333) internal successors, (787), 12 states have internal predecessors, (787), 0 states have call successors, (0), 0 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 14:55:57,682 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:55:57,682 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:55:57,682 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 14:55:57,683 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:55:57,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:55:57,683 INFO L85 PathProgramCache]: Analyzing trace with hash -342008870, now seen corresponding path program 2 times [2023-12-09 14:55:57,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:55:57,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773862305] [2023-12-09 14:55:57,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:55:57,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:55:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:55:58,739 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 14:55:58,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:55:58,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773862305] [2023-12-09 14:55:58,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773862305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:55:58,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:55:58,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-09 14:55:58,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729968698] [2023-12-09 14:55:58,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:55:58,744 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-09 14:55:58,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:55:58,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-09 14:55:58,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-12-09 14:55:58,747 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 93 [2023-12-09 14:55:58,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 220 transitions, 1193 flow. Second operand has 13 states, 13 states have (on average 63.61538461538461) internal successors, (827), 13 states have internal predecessors, (827), 0 states have call successors, (0), 0 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 14:55:58,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:55:58,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 93 [2023-12-09 14:55:58,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:55:59,582 INFO L124 PetriNetUnfolderBase]: 520/1450 cut-off events. [2023-12-09 14:55:59,583 INFO L125 PetriNetUnfolderBase]: For 716/1284 co-relation queries the response was YES. [2023-12-09 14:55:59,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4694 conditions, 1450 events. 520/1450 cut-off events. For 716/1284 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 10516 event pairs, 22 based on Foata normal form. 25/1460 useless extension candidates. Maximal degree in co-relation 4624. Up to 622 conditions per place. [2023-12-09 14:55:59,588 INFO L140 encePairwiseOnDemand]: 77/93 looper letters, 28 selfloop transitions, 21 changer transitions 288/389 dead transitions. [2023-12-09 14:55:59,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 389 transitions, 2951 flow [2023-12-09 14:55:59,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-09 14:55:59,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-12-09 14:55:59,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 1665 transitions. [2023-12-09 14:55:59,592 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7161290322580646 [2023-12-09 14:55:59,592 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 1665 transitions. [2023-12-09 14:55:59,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 1665 transitions. [2023-12-09 14:55:59,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:55:59,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 1665 transitions. [2023-12-09 14:55:59,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 66.6) internal successors, (1665), 25 states have internal predecessors, (1665), 0 states have call successors, (0), 0 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 14:55:59,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 93.0) internal successors, (2418), 26 states have internal predecessors, (2418), 0 states have call successors, (0), 0 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 14:55:59,598 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 93.0) internal successors, (2418), 26 states have internal predecessors, (2418), 0 states have call successors, (0), 0 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 14:55:59,599 INFO L308 CegarLoopForPetriNet]: 96 programPoint places, 51 predicate places. [2023-12-09 14:55:59,599 INFO L500 AbstractCegarLoop]: Abstraction has has 147 places, 389 transitions, 2951 flow [2023-12-09 14:55:59,600 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 63.61538461538461) internal successors, (827), 13 states have internal predecessors, (827), 0 states have call successors, (0), 0 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 14:55:59,600 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:55:59,600 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:55:59,600 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 14:55:59,600 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:55:59,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:55:59,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1174974181, now seen corresponding path program 1 times [2023-12-09 14:55:59,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:55:59,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062487564] [2023-12-09 14:55:59,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:55:59,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:55:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:55:59,796 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 14:55:59,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:55:59,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062487564] [2023-12-09 14:55:59,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062487564] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:55:59,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:55:59,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:55:59,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634698250] [2023-12-09 14:55:59,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:55:59,798 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:55:59,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:55:59,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:55:59,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:55:59,800 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 93 [2023-12-09 14:55:59,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 389 transitions, 2951 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 0 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 14:55:59,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:55:59,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 93 [2023-12-09 14:55:59,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:00,005 INFO L124 PetriNetUnfolderBase]: 291/827 cut-off events. [2023-12-09 14:56:00,005 INFO L125 PetriNetUnfolderBase]: For 1772/1794 co-relation queries the response was YES. [2023-12-09 14:56:00,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2679 conditions, 827 events. 291/827 cut-off events. For 1772/1794 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4535 event pairs, 13 based on Foata normal form. 7/819 useless extension candidates. Maximal degree in co-relation 2605. Up to 336 conditions per place. [2023-12-09 14:56:00,010 INFO L140 encePairwiseOnDemand]: 84/93 looper letters, 45 selfloop transitions, 8 changer transitions 94/217 dead transitions. [2023-12-09 14:56:00,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 217 transitions, 1626 flow [2023-12-09 14:56:00,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 14:56:00,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 14:56:00,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 762 transitions. [2023-12-09 14:56:00,012 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8193548387096774 [2023-12-09 14:56:00,012 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 762 transitions. [2023-12-09 14:56:00,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 762 transitions. [2023-12-09 14:56:00,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:00,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 762 transitions. [2023-12-09 14:56:00,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 76.2) internal successors, (762), 10 states have internal predecessors, (762), 0 states have call successors, (0), 0 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 14:56:00,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 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 14:56:00,015 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 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 14:56:00,016 INFO L308 CegarLoopForPetriNet]: 96 programPoint places, 39 predicate places. [2023-12-09 14:56:00,016 INFO L500 AbstractCegarLoop]: Abstraction has has 135 places, 217 transitions, 1626 flow [2023-12-09 14:56:00,016 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 0 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 14:56:00,016 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:00,016 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:56:00,016 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 14:56:00,016 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:56:00,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:00,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1944655578, now seen corresponding path program 1 times [2023-12-09 14:56:00,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:00,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54524825] [2023-12-09 14:56:00,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:00,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:00,975 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 14:56:00,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:00,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54524825] [2023-12-09 14:56:00,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54524825] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:00,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:00,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-09 14:56:00,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677482936] [2023-12-09 14:56:00,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:00,976 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-09 14:56:00,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:00,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-09 14:56:00,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-09 14:56:00,978 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 93 [2023-12-09 14:56:00,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 217 transitions, 1626 flow. Second operand has 12 states, 12 states have (on average 63.0) internal successors, (756), 12 states have internal predecessors, (756), 0 states have call successors, (0), 0 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 14:56:00,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:00,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 93 [2023-12-09 14:56:00,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:01,444 INFO L124 PetriNetUnfolderBase]: 477/1394 cut-off events. [2023-12-09 14:56:01,444 INFO L125 PetriNetUnfolderBase]: For 4072/4116 co-relation queries the response was YES. [2023-12-09 14:56:01,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5033 conditions, 1394 events. 477/1394 cut-off events. For 4072/4116 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 9099 event pairs, 20 based on Foata normal form. 8/1375 useless extension candidates. Maximal degree in co-relation 4946. Up to 562 conditions per place. [2023-12-09 14:56:01,451 INFO L140 encePairwiseOnDemand]: 79/93 looper letters, 54 selfloop transitions, 28 changer transitions 184/334 dead transitions. [2023-12-09 14:56:01,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 334 transitions, 3310 flow [2023-12-09 14:56:01,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-09 14:56:01,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-12-09 14:56:01,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 959 transitions. [2023-12-09 14:56:01,454 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7365591397849462 [2023-12-09 14:56:01,454 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 959 transitions. [2023-12-09 14:56:01,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 959 transitions. [2023-12-09 14:56:01,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:01,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 959 transitions. [2023-12-09 14:56:01,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 68.5) internal successors, (959), 14 states have internal predecessors, (959), 0 states have call successors, (0), 0 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 14:56:01,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 93.0) internal successors, (1395), 15 states have internal predecessors, (1395), 0 states have call successors, (0), 0 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 14:56:01,458 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 93.0) internal successors, (1395), 15 states have internal predecessors, (1395), 0 states have call successors, (0), 0 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 14:56:01,458 INFO L308 CegarLoopForPetriNet]: 96 programPoint places, 52 predicate places. [2023-12-09 14:56:01,458 INFO L500 AbstractCegarLoop]: Abstraction has has 148 places, 334 transitions, 3310 flow [2023-12-09 14:56:01,459 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 63.0) internal successors, (756), 12 states have internal predecessors, (756), 0 states have call successors, (0), 0 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 14:56:01,459 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:01,459 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:56:01,459 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 14:56:01,459 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:56:01,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:01,459 INFO L85 PathProgramCache]: Analyzing trace with hash -585097510, now seen corresponding path program 2 times [2023-12-09 14:56:01,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:01,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708015219] [2023-12-09 14:56:01,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:01,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:02,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:56:02,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:02,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708015219] [2023-12-09 14:56:02,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708015219] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:02,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:02,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-09 14:56:02,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211253637] [2023-12-09 14:56:02,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:02,853 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-09 14:56:02,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:02,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-09 14:56:02,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-12-09 14:56:02,855 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 93 [2023-12-09 14:56:02,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 334 transitions, 3310 flow. Second operand has 14 states, 14 states have (on average 63.642857142857146) internal successors, (891), 14 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:56:02,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:02,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 93 [2023-12-09 14:56:02,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:03,628 INFO L124 PetriNetUnfolderBase]: 637/1855 cut-off events. [2023-12-09 14:56:03,628 INFO L125 PetriNetUnfolderBase]: For 7620/7758 co-relation queries the response was YES. [2023-12-09 14:56:03,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7392 conditions, 1855 events. 637/1855 cut-off events. For 7620/7758 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 13374 event pairs, 22 based on Foata normal form. 81/1902 useless extension candidates. Maximal degree in co-relation 7293. Up to 738 conditions per place. [2023-12-09 14:56:03,639 INFO L140 encePairwiseOnDemand]: 76/93 looper letters, 68 selfloop transitions, 39 changer transitions 253/428 dead transitions. [2023-12-09 14:56:03,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 428 transitions, 5191 flow [2023-12-09 14:56:03,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 14:56:03,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 14:56:03,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1087 transitions. [2023-12-09 14:56:03,641 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.730510752688172 [2023-12-09 14:56:03,641 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1087 transitions. [2023-12-09 14:56:03,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1087 transitions. [2023-12-09 14:56:03,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:03,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1087 transitions. [2023-12-09 14:56:03,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 67.9375) internal successors, (1087), 16 states have internal predecessors, (1087), 0 states have call successors, (0), 0 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 14:56:03,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 93.0) internal successors, (1581), 17 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:56:03,647 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 93.0) internal successors, (1581), 17 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:56:03,648 INFO L308 CegarLoopForPetriNet]: 96 programPoint places, 67 predicate places. [2023-12-09 14:56:03,648 INFO L500 AbstractCegarLoop]: Abstraction has has 163 places, 428 transitions, 5191 flow [2023-12-09 14:56:03,648 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 63.642857142857146) internal successors, (891), 14 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:56:03,649 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:03,649 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:56:03,649 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 14:56:03,649 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:56:03,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:03,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1903019042, now seen corresponding path program 3 times [2023-12-09 14:56:03,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:03,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898624225] [2023-12-09 14:56:03,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:03,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:03,788 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 14:56:03,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:03,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898624225] [2023-12-09 14:56:03,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898624225] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:03,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:03,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:56:03,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743743164] [2023-12-09 14:56:03,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:03,789 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:56:03,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:03,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:56:03,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:56:03,790 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 93 [2023-12-09 14:56:03,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 428 transitions, 5191 flow. Second operand has 7 states, 7 states have (on average 70.57142857142857) internal successors, (494), 7 states have internal predecessors, (494), 0 states have call successors, (0), 0 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 14:56:03,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:03,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 93 [2023-12-09 14:56:03,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:04,109 INFO L124 PetriNetUnfolderBase]: 443/1156 cut-off events. [2023-12-09 14:56:04,110 INFO L125 PetriNetUnfolderBase]: For 6436/6614 co-relation queries the response was YES. [2023-12-09 14:56:04,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5122 conditions, 1156 events. 443/1156 cut-off events. For 6436/6614 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 7616 event pairs, 22 based on Foata normal form. 74/1223 useless extension candidates. Maximal degree in co-relation 5019. Up to 353 conditions per place. [2023-12-09 14:56:04,114 INFO L140 encePairwiseOnDemand]: 84/93 looper letters, 43 selfloop transitions, 9 changer transitions 206/317 dead transitions. [2023-12-09 14:56:04,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 317 transitions, 4099 flow [2023-12-09 14:56:04,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:56:04,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:56:04,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 957 transitions. [2023-12-09 14:56:04,116 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7915632754342432 [2023-12-09 14:56:04,117 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 957 transitions. [2023-12-09 14:56:04,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 957 transitions. [2023-12-09 14:56:04,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:04,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 957 transitions. [2023-12-09 14:56:04,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.61538461538461) internal successors, (957), 13 states have internal predecessors, (957), 0 states have call successors, (0), 0 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 14:56:04,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 93.0) internal successors, (1302), 14 states have internal predecessors, (1302), 0 states have call successors, (0), 0 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 14:56:04,120 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 93.0) internal successors, (1302), 14 states have internal predecessors, (1302), 0 states have call successors, (0), 0 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 14:56:04,121 INFO L308 CegarLoopForPetriNet]: 96 programPoint places, 64 predicate places. [2023-12-09 14:56:04,121 INFO L500 AbstractCegarLoop]: Abstraction has has 160 places, 317 transitions, 4099 flow [2023-12-09 14:56:04,121 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.57142857142857) internal successors, (494), 7 states have internal predecessors, (494), 0 states have call successors, (0), 0 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 14:56:04,121 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:04,121 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:56:04,121 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 14:56:04,121 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:56:04,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:04,122 INFO L85 PathProgramCache]: Analyzing trace with hash 93677177, now seen corresponding path program 1 times [2023-12-09 14:56:04,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:04,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542840379] [2023-12-09 14:56:04,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:04,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:04,549 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 14:56:04,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:04,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542840379] [2023-12-09 14:56:04,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542840379] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:04,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:04,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:56:04,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063718793] [2023-12-09 14:56:04,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:04,550 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:56:04,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:04,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:56:04,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:56:04,551 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 93 [2023-12-09 14:56:04,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 317 transitions, 4099 flow. Second operand has 7 states, 7 states have (on average 62.857142857142854) internal successors, (440), 7 states have internal predecessors, (440), 0 states have call successors, (0), 0 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 14:56:04,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:04,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 93 [2023-12-09 14:56:04,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:04,878 INFO L124 PetriNetUnfolderBase]: 821/2049 cut-off events. [2023-12-09 14:56:04,878 INFO L125 PetriNetUnfolderBase]: For 18354/18710 co-relation queries the response was YES. [2023-12-09 14:56:04,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10002 conditions, 2049 events. 821/2049 cut-off events. For 18354/18710 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 15313 event pairs, 42 based on Foata normal form. 179/2217 useless extension candidates. Maximal degree in co-relation 9886. Up to 669 conditions per place. [2023-12-09 14:56:04,888 INFO L140 encePairwiseOnDemand]: 83/93 looper letters, 35 selfloop transitions, 4 changer transitions 348/442 dead transitions. [2023-12-09 14:56:04,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 442 transitions, 6954 flow [2023-12-09 14:56:04,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 14:56:04,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 14:56:04,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 459 transitions. [2023-12-09 14:56:04,889 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7050691244239631 [2023-12-09 14:56:04,889 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 459 transitions. [2023-12-09 14:56:04,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 459 transitions. [2023-12-09 14:56:04,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:04,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 459 transitions. [2023-12-09 14:56:04,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 65.57142857142857) internal successors, (459), 7 states have internal predecessors, (459), 0 states have call successors, (0), 0 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 14:56:04,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 93.0) internal successors, (744), 8 states have internal predecessors, (744), 0 states have call successors, (0), 0 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 14:56:04,891 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 93.0) internal successors, (744), 8 states have internal predecessors, (744), 0 states have call successors, (0), 0 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 14:56:04,891 INFO L308 CegarLoopForPetriNet]: 96 programPoint places, 70 predicate places. [2023-12-09 14:56:04,892 INFO L500 AbstractCegarLoop]: Abstraction has has 166 places, 442 transitions, 6954 flow [2023-12-09 14:56:04,892 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 62.857142857142854) internal successors, (440), 7 states have internal predecessors, (440), 0 states have call successors, (0), 0 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 14:56:04,892 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:04,892 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:56:04,892 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 14:56:04,892 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:56:04,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:04,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1389726561, now seen corresponding path program 2 times [2023-12-09 14:56:04,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:04,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989563111] [2023-12-09 14:56:04,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:04,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:06,656 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 14:56:06,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:06,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989563111] [2023-12-09 14:56:06,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989563111] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:06,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:06,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-09 14:56:06,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521873671] [2023-12-09 14:56:06,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:06,658 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-09 14:56:06,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:06,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-09 14:56:06,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2023-12-09 14:56:06,660 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 93 [2023-12-09 14:56:06,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 442 transitions, 6954 flow. Second operand has 16 states, 16 states have (on average 59.75) internal successors, (956), 16 states have internal predecessors, (956), 0 states have call successors, (0), 0 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 14:56:06,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:06,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 93 [2023-12-09 14:56:06,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:07,247 INFO L124 PetriNetUnfolderBase]: 1006/2459 cut-off events. [2023-12-09 14:56:07,248 INFO L125 PetriNetUnfolderBase]: For 28520/29608 co-relation queries the response was YES. [2023-12-09 14:56:07,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13013 conditions, 2459 events. 1006/2459 cut-off events. For 28520/29608 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 19425 event pairs, 53 based on Foata normal form. 197/2634 useless extension candidates. Maximal degree in co-relation 12881. Up to 826 conditions per place. [2023-12-09 14:56:07,260 INFO L140 encePairwiseOnDemand]: 77/93 looper letters, 0 selfloop transitions, 0 changer transitions 515/515 dead transitions. [2023-12-09 14:56:07,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 515 transitions, 9240 flow [2023-12-09 14:56:07,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-09 14:56:07,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-12-09 14:56:07,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 862 transitions. [2023-12-09 14:56:07,262 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6620583717357911 [2023-12-09 14:56:07,262 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 862 transitions. [2023-12-09 14:56:07,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 862 transitions. [2023-12-09 14:56:07,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:07,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 862 transitions. [2023-12-09 14:56:07,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 61.57142857142857) internal successors, (862), 14 states have internal predecessors, (862), 0 states have call successors, (0), 0 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 14:56:07,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 93.0) internal successors, (1395), 15 states have internal predecessors, (1395), 0 states have call successors, (0), 0 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 14:56:07,265 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 93.0) internal successors, (1395), 15 states have internal predecessors, (1395), 0 states have call successors, (0), 0 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 14:56:07,266 INFO L308 CegarLoopForPetriNet]: 96 programPoint places, 81 predicate places. [2023-12-09 14:56:07,266 INFO L500 AbstractCegarLoop]: Abstraction has has 177 places, 515 transitions, 9240 flow [2023-12-09 14:56:07,266 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 59.75) internal successors, (956), 16 states have internal predecessors, (956), 0 states have call successors, (0), 0 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 14:56:07,271 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/rfi000_tso.i_BEv2_AllErrorsAtOnce [2023-12-09 14:56:07,353 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-12-09 14:56:07,353 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-12-09 14:56:07,353 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-12-09 14:56:07,353 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-12-09 14:56:07,353 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-12-09 14:56:07,354 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-09 14:56:07,354 INFO L457 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1] [2023-12-09 14:56:07,358 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 14:56:07,358 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 14:56:07,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:56:07 BasicIcfg [2023-12-09 14:56:07,364 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 14:56:07,364 INFO L158 Benchmark]: Toolchain (without parser) took 13616.65ms. Allocated memory was 187.7MB in the beginning and 764.4MB in the end (delta: 576.7MB). Free memory was 140.6MB in the beginning and 704.4MB in the end (delta: -563.8MB). Peak memory consumption was 458.1MB. Max. memory is 8.0GB. [2023-12-09 14:56:07,365 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 187.7MB. Free memory is still 143.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 14:56:07,367 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.80ms. Allocated memory is still 187.7MB. Free memory was 140.6MB in the beginning and 115.1MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-09 14:56:07,367 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.23ms. Allocated memory is still 187.7MB. Free memory was 115.1MB in the beginning and 111.9MB in the end (delta: 3.2MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-09 14:56:07,367 INFO L158 Benchmark]: Boogie Preprocessor took 29.34ms. Allocated memory is still 187.7MB. Free memory was 111.9MB in the beginning and 109.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 14:56:07,367 INFO L158 Benchmark]: RCFGBuilder took 581.65ms. Allocated memory is still 187.7MB. Free memory was 109.8MB in the beginning and 115.8MB in the end (delta: -6.0MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. [2023-12-09 14:56:07,367 INFO L158 Benchmark]: TraceAbstraction took 12500.99ms. Allocated memory was 187.7MB in the beginning and 764.4MB in the end (delta: 576.7MB). Free memory was 115.3MB in the beginning and 704.4MB in the end (delta: -589.1MB). Peak memory consumption was 431.6MB. Max. memory is 8.0GB. [2023-12-09 14:56:07,368 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 187.7MB. Free memory is still 143.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 451.80ms. Allocated memory is still 187.7MB. Free memory was 140.6MB in the beginning and 115.1MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.23ms. Allocated memory is still 187.7MB. Free memory was 115.1MB in the beginning and 111.9MB in the end (delta: 3.2MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.34ms. Allocated memory is still 187.7MB. Free memory was 111.9MB in the beginning and 109.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 581.65ms. Allocated memory is still 187.7MB. Free memory was 109.8MB in the beginning and 115.8MB in the end (delta: -6.0MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. * TraceAbstraction took 12500.99ms. Allocated memory was 187.7MB in the beginning and 764.4MB in the end (delta: 576.7MB). Free memory was 115.3MB in the beginning and 704.4MB in the end (delta: -589.1MB). Peak memory consumption was 431.6MB. 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 - 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 5 procedures, 113 locations, 5 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: 12.4s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 691 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 691 mSDsluCounter, 1082 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 895 mSDsCounter, 111 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1771 IncrementalHoareTripleChecker+Invalid, 1882 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 111 mSolverCounterUnsat, 187 mSDtfsCounter, 1771 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 164 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9240occurred in iteration=10, InterpolantAutomatonStates: 131, 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, 0.4s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 645 NumberOfCodeBlocks, 645 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 635 ConstructedInterpolants, 0 QuantifiedInterpolants, 4830 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-09 14:56:07,389 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...