./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.4.1.ufo.BOUNDED-8.pals+Problem12_label01.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.4.1.ufo.BOUNDED-8.pals+Problem12_label01.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f34e139d311e566fb184ea47633b96986afa15e7a6ae2ebeede6340c715d2189 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 23:49:03,766 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 23:49:03,851 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 23:49:03,860 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 23:49:03,861 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 23:49:03,891 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 23:49:03,892 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 23:49:03,892 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 23:49:03,893 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 23:49:03,894 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 23:49:03,895 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 23:49:03,895 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 23:49:03,896 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 23:49:03,896 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 23:49:03,896 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 23:49:03,898 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 23:49:03,898 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 23:49:03,899 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 23:49:03,899 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 23:49:03,899 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 23:49:03,899 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 23:49:03,903 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 23:49:03,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 23:49:03,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 23:49:03,904 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 23:49:03,904 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 23:49:03,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 23:49:03,904 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 23:49:03,905 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 23:49:03,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 23:49:03,905 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 23:49:03,905 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 23:49:03,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:49:03,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 23:49:03,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 23:49:03,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 23:49:03,906 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 23:49:03,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 23:49:03,907 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 23:49:03,907 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 23:49:03,907 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 23:49:03,908 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 23:49:03,908 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f34e139d311e566fb184ea47633b96986afa15e7a6ae2ebeede6340c715d2189 [2024-11-19 23:49:04,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 23:49:04,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 23:49:04,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 23:49:04,197 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 23:49:04,197 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 23:49:04,199 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.4.1.ufo.BOUNDED-8.pals+Problem12_label01.c [2024-11-19 23:49:05,621 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 23:49:06,158 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 23:49:06,160 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.4.1.ufo.BOUNDED-8.pals+Problem12_label01.c [2024-11-19 23:49:06,188 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2f857fb4/0fcb293345da4886b0dca9b4bc9c7215/FLAG1d50b57fd [2024-11-19 23:49:06,203 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2f857fb4/0fcb293345da4886b0dca9b4bc9c7215 [2024-11-19 23:49:06,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 23:49:06,208 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 23:49:06,209 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 23:49:06,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 23:49:06,216 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 23:49:06,217 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:49:06" (1/1) ... [2024-11-19 23:49:06,218 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b1e8117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:49:06, skipping insertion in model container [2024-11-19 23:49:06,219 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:49:06" (1/1) ... [2024-11-19 23:49:06,321 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 23:49:06,649 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.4.1.ufo.BOUNDED-8.pals+Problem12_label01.c[8653,8666] [2024-11-19 23:49:06,692 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.4.1.ufo.BOUNDED-8.pals+Problem12_label01.c[14208,14221] [2024-11-19 23:49:07,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:49:07,359 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 23:49:07,384 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.4.1.ufo.BOUNDED-8.pals+Problem12_label01.c[8653,8666] [2024-11-19 23:49:07,391 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.4.1.ufo.BOUNDED-8.pals+Problem12_label01.c[14208,14221] [2024-11-19 23:49:07,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:49:07,804 INFO L204 MainTranslator]: Completed translation [2024-11-19 23:49:07,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:49:07 WrapperNode [2024-11-19 23:49:07,805 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 23:49:07,806 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 23:49:07,806 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 23:49:07,806 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 23:49:07,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:49:07" (1/1) ... [2024-11-19 23:49:07,889 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:49:07" (1/1) ... [2024-11-19 23:49:08,158 INFO L138 Inliner]: procedures = 34, calls = 20, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 5040 [2024-11-19 23:49:08,159 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 23:49:08,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 23:49:08,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 23:49:08,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 23:49:08,171 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:49:07" (1/1) ... [2024-11-19 23:49:08,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:49:07" (1/1) ... [2024-11-19 23:49:08,212 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:49:07" (1/1) ... [2024-11-19 23:49:08,452 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 23:49:08,453 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:49:07" (1/1) ... [2024-11-19 23:49:08,453 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:49:07" (1/1) ... [2024-11-19 23:49:08,582 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:49:07" (1/1) ... [2024-11-19 23:49:08,629 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:49:07" (1/1) ... [2024-11-19 23:49:08,670 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:49:07" (1/1) ... [2024-11-19 23:49:08,691 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:49:07" (1/1) ... [2024-11-19 23:49:08,747 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 23:49:08,748 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 23:49:08,748 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 23:49:08,748 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 23:49:08,749 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:49:07" (1/1) ... [2024-11-19 23:49:08,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:49:08,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:49:08,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 23:49:08,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 23:49:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 23:49:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 23:49:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 23:49:08,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 23:49:08,915 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 23:49:08,917 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 23:49:13,175 INFO L? ?]: Removed 737 outVars from TransFormulas that were not future-live. [2024-11-19 23:49:13,176 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 23:49:13,218 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 23:49:13,219 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 23:49:13,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:49:13 BoogieIcfgContainer [2024-11-19 23:49:13,219 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 23:49:13,222 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 23:49:13,222 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 23:49:13,225 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 23:49:13,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:49:06" (1/3) ... [2024-11-19 23:49:13,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31219d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:49:13, skipping insertion in model container [2024-11-19 23:49:13,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:49:07" (2/3) ... [2024-11-19 23:49:13,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31219d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:49:13, skipping insertion in model container [2024-11-19 23:49:13,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:49:13" (3/3) ... [2024-11-19 23:49:13,228 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals+Problem12_label01.c [2024-11-19 23:49:13,244 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 23:49:13,244 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 23:49:13,335 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 23:49:13,342 INFO L333 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, 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;@4c6f6a77, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 23:49:13,342 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 23:49:13,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 885 states, 882 states have (on average 1.9058956916099774) internal successors, (1681), 884 states have internal predecessors, (1681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:13,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-19 23:49:13,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:13,364 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:49:13,364 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:13,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:13,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1141430702, now seen corresponding path program 1 times [2024-11-19 23:49:13,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:13,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12260233] [2024-11-19 23:49:13,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:13,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:13,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:13,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:13,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12260233] [2024-11-19 23:49:13,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12260233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:49:13,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:49:13,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 23:49:13,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173342985] [2024-11-19 23:49:13,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:49:13,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 23:49:13,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:13,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 23:49:13,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 23:49:13,645 INFO L87 Difference]: Start difference. First operand has 885 states, 882 states have (on average 1.9058956916099774) internal successors, (1681), 884 states have internal predecessors, (1681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:13,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:13,740 INFO L93 Difference]: Finished difference Result 1741 states and 3308 transitions. [2024-11-19 23:49:13,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 23:49:13,743 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-19 23:49:13,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:13,762 INFO L225 Difference]: With dead ends: 1741 [2024-11-19 23:49:13,762 INFO L226 Difference]: Without dead ends: 819 [2024-11-19 23:49:13,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 23:49:13,773 INFO L432 NwaCegarLoop]: 1615 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:13,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1615 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:49:13,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2024-11-19 23:49:13,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 819. [2024-11-19 23:49:13,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 817 states have (on average 1.894736842105263) internal successors, (1548), 818 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:13,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1548 transitions. [2024-11-19 23:49:13,880 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1548 transitions. Word has length 22 [2024-11-19 23:49:13,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:13,881 INFO L471 AbstractCegarLoop]: Abstraction has 819 states and 1548 transitions. [2024-11-19 23:49:13,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:13,882 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1548 transitions. [2024-11-19 23:49:13,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-19 23:49:13,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:13,884 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:49:13,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 23:49:13,885 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:13,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:13,886 INFO L85 PathProgramCache]: Analyzing trace with hash 120362348, now seen corresponding path program 1 times [2024-11-19 23:49:13,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:13,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360864528] [2024-11-19 23:49:13,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:13,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:14,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:14,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:14,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360864528] [2024-11-19 23:49:14,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360864528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:49:14,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:49:14,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 23:49:14,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618873068] [2024-11-19 23:49:14,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:49:14,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 23:49:14,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:14,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 23:49:14,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 23:49:14,153 INFO L87 Difference]: Start difference. First operand 819 states and 1548 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:14,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:14,270 INFO L93 Difference]: Finished difference Result 895 states and 1666 transitions. [2024-11-19 23:49:14,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 23:49:14,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-19 23:49:14,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:14,276 INFO L225 Difference]: With dead ends: 895 [2024-11-19 23:49:14,276 INFO L226 Difference]: Without dead ends: 855 [2024-11-19 23:49:14,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 23:49:14,279 INFO L432 NwaCegarLoop]: 1544 mSDtfsCounter, 56 mSDsluCounter, 4603 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 6147 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:14,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 6147 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 23:49:14,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-11-19 23:49:14,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 819. [2024-11-19 23:49:14,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 817 states have (on average 1.8665850673194615) internal successors, (1525), 818 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:14,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1525 transitions. [2024-11-19 23:49:14,308 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1525 transitions. Word has length 22 [2024-11-19 23:49:14,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:14,309 INFO L471 AbstractCegarLoop]: Abstraction has 819 states and 1525 transitions. [2024-11-19 23:49:14,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:14,310 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1525 transitions. [2024-11-19 23:49:14,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-19 23:49:14,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:14,312 INFO L215 NwaCegarLoop]: 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] [2024-11-19 23:49:14,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 23:49:14,312 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:14,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:14,313 INFO L85 PathProgramCache]: Analyzing trace with hash 550762215, now seen corresponding path program 1 times [2024-11-19 23:49:14,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:14,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451820573] [2024-11-19 23:49:14,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:14,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:14,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:14,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:14,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451820573] [2024-11-19 23:49:14,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451820573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:49:14,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:49:14,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 23:49:14,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759605109] [2024-11-19 23:49:14,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:49:14,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 23:49:14,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:14,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 23:49:14,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 23:49:14,497 INFO L87 Difference]: Start difference. First operand 819 states and 1525 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:14,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:14,687 INFO L93 Difference]: Finished difference Result 1107 states and 1981 transitions. [2024-11-19 23:49:14,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 23:49:14,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-19 23:49:14,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:14,693 INFO L225 Difference]: With dead ends: 1107 [2024-11-19 23:49:14,694 INFO L226 Difference]: Without dead ends: 1071 [2024-11-19 23:49:14,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-19 23:49:14,696 INFO L432 NwaCegarLoop]: 1521 mSDtfsCounter, 6262 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6262 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:14,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6262 Valid, 2187 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 23:49:14,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2024-11-19 23:49:14,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 853. [2024-11-19 23:49:14,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 851 states have (on average 1.8554641598119859) internal successors, (1579), 852 states have internal predecessors, (1579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:14,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1579 transitions. [2024-11-19 23:49:14,718 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1579 transitions. Word has length 44 [2024-11-19 23:49:14,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:14,721 INFO L471 AbstractCegarLoop]: Abstraction has 853 states and 1579 transitions. [2024-11-19 23:49:14,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:14,722 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1579 transitions. [2024-11-19 23:49:14,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-19 23:49:14,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:14,723 INFO L215 NwaCegarLoop]: 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] [2024-11-19 23:49:14,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 23:49:14,724 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:14,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:14,724 INFO L85 PathProgramCache]: Analyzing trace with hash -414187945, now seen corresponding path program 1 times [2024-11-19 23:49:14,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:14,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823469308] [2024-11-19 23:49:14,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:14,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:14,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:14,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:14,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823469308] [2024-11-19 23:49:14,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823469308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:49:14,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:49:14,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:49:14,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747144686] [2024-11-19 23:49:14,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:49:14,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:49:14,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:14,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:49:14,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:14,832 INFO L87 Difference]: Start difference. First operand 853 states and 1579 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:14,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:14,864 INFO L93 Difference]: Finished difference Result 982 states and 1782 transitions. [2024-11-19 23:49:14,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:49:14,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-11-19 23:49:14,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:14,868 INFO L225 Difference]: With dead ends: 982 [2024-11-19 23:49:14,869 INFO L226 Difference]: Without dead ends: 912 [2024-11-19 23:49:14,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:14,870 INFO L432 NwaCegarLoop]: 1523 mSDtfsCounter, 1474 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:14,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 1575 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:49:14,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2024-11-19 23:49:14,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 910. [2024-11-19 23:49:14,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 908 states have (on average 1.8359030837004404) internal successors, (1667), 909 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:14,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1667 transitions. [2024-11-19 23:49:14,889 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1667 transitions. Word has length 46 [2024-11-19 23:49:14,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:14,890 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1667 transitions. [2024-11-19 23:49:14,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:14,890 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1667 transitions. [2024-11-19 23:49:14,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-19 23:49:14,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:14,892 INFO L215 NwaCegarLoop]: 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] [2024-11-19 23:49:14,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 23:49:14,892 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:14,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:14,893 INFO L85 PathProgramCache]: Analyzing trace with hash -347694433, now seen corresponding path program 1 times [2024-11-19 23:49:14,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:14,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40353806] [2024-11-19 23:49:14,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:14,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:15,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:15,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:15,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40353806] [2024-11-19 23:49:15,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40353806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:49:15,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:49:15,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 23:49:15,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967489955] [2024-11-19 23:49:15,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:49:15,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 23:49:15,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:15,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 23:49:15,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 23:49:15,103 INFO L87 Difference]: Start difference. First operand 910 states and 1667 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:15,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:15,237 INFO L93 Difference]: Finished difference Result 1039 states and 1867 transitions. [2024-11-19 23:49:15,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 23:49:15,238 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-11-19 23:49:15,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:15,242 INFO L225 Difference]: With dead ends: 1039 [2024-11-19 23:49:15,243 INFO L226 Difference]: Without dead ends: 912 [2024-11-19 23:49:15,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:49:15,244 INFO L432 NwaCegarLoop]: 1519 mSDtfsCounter, 4446 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4446 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:15,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4446 Valid, 1678 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:49:15,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2024-11-19 23:49:15,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 910. [2024-11-19 23:49:15,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 908 states have (on average 1.8337004405286343) internal successors, (1665), 909 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) [2024-11-19 23:49:15,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1665 transitions. [2024-11-19 23:49:15,270 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1665 transitions. Word has length 46 [2024-11-19 23:49:15,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:15,271 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1665 transitions. [2024-11-19 23:49:15,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:15,272 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1665 transitions. [2024-11-19 23:49:15,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-19 23:49:15,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:15,274 INFO L215 NwaCegarLoop]: 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] [2024-11-19 23:49:15,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 23:49:15,274 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:15,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:15,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1691651312, now seen corresponding path program 1 times [2024-11-19 23:49:15,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:15,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386784410] [2024-11-19 23:49:15,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:15,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:15,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:15,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:15,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386784410] [2024-11-19 23:49:15,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386784410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:49:15,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:49:15,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 23:49:15,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669634845] [2024-11-19 23:49:15,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:49:15,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 23:49:15,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:15,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 23:49:15,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 23:49:15,485 INFO L87 Difference]: Start difference. First operand 910 states and 1665 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:15,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:15,525 INFO L93 Difference]: Finished difference Result 918 states and 1674 transitions. [2024-11-19 23:49:15,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 23:49:15,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2024-11-19 23:49:15,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:15,533 INFO L225 Difference]: With dead ends: 918 [2024-11-19 23:49:15,533 INFO L226 Difference]: Without dead ends: 916 [2024-11-19 23:49:15,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 23:49:15,534 INFO L432 NwaCegarLoop]: 1522 mSDtfsCounter, 0 mSDsluCounter, 4557 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6079 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:15,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6079 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:49:15,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2024-11-19 23:49:15,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 916. [2024-11-19 23:49:15,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 914 states have (on average 1.8271334792122538) internal successors, (1670), 915 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:15,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1670 transitions. [2024-11-19 23:49:15,551 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1670 transitions. Word has length 47 [2024-11-19 23:49:15,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:15,552 INFO L471 AbstractCegarLoop]: Abstraction has 916 states and 1670 transitions. [2024-11-19 23:49:15,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:15,552 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1670 transitions. [2024-11-19 23:49:15,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-19 23:49:15,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:15,553 INFO L215 NwaCegarLoop]: 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] [2024-11-19 23:49:15,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 23:49:15,553 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:15,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:15,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1538886047, now seen corresponding path program 1 times [2024-11-19 23:49:15,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:15,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781189433] [2024-11-19 23:49:15,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:15,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:15,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:15,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:15,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:15,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781189433] [2024-11-19 23:49:15,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781189433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:49:15,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:49:15,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:49:15,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401440470] [2024-11-19 23:49:15,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:49:15,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:49:15,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:15,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:49:15,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:15,607 INFO L87 Difference]: Start difference. First operand 916 states and 1670 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:15,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:15,636 INFO L93 Difference]: Finished difference Result 1062 states and 1891 transitions. [2024-11-19 23:49:15,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:49:15,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-19 23:49:15,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:15,641 INFO L225 Difference]: With dead ends: 1062 [2024-11-19 23:49:15,641 INFO L226 Difference]: Without dead ends: 986 [2024-11-19 23:49:15,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:15,643 INFO L432 NwaCegarLoop]: 1567 mSDtfsCounter, 1486 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:15,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 1625 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:49:15,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2024-11-19 23:49:15,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 984. [2024-11-19 23:49:15,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 982 states have (on average 1.8034623217922607) internal successors, (1771), 983 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:15,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1771 transitions. [2024-11-19 23:49:15,666 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1771 transitions. Word has length 48 [2024-11-19 23:49:15,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:15,666 INFO L471 AbstractCegarLoop]: Abstraction has 984 states and 1771 transitions. [2024-11-19 23:49:15,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:15,666 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1771 transitions. [2024-11-19 23:49:15,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-19 23:49:15,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:15,667 INFO L215 NwaCegarLoop]: 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] [2024-11-19 23:49:15,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 23:49:15,668 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:15,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:15,668 INFO L85 PathProgramCache]: Analyzing trace with hash 561679263, now seen corresponding path program 1 times [2024-11-19 23:49:15,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:15,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591215421] [2024-11-19 23:49:15,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:15,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:15,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:15,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:15,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591215421] [2024-11-19 23:49:15,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591215421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:49:15,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:49:15,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:49:15,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708445475] [2024-11-19 23:49:15,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:49:15,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:49:15,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:15,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:49:15,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:15,745 INFO L87 Difference]: Start difference. First operand 984 states and 1771 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:15,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:15,775 INFO L93 Difference]: Finished difference Result 1358 states and 2331 transitions. [2024-11-19 23:49:15,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:49:15,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-19 23:49:15,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:15,781 INFO L225 Difference]: With dead ends: 1358 [2024-11-19 23:49:15,781 INFO L226 Difference]: Without dead ends: 1159 [2024-11-19 23:49:15,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:15,783 INFO L432 NwaCegarLoop]: 1559 mSDtfsCounter, 1482 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:15,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1625 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:49:15,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2024-11-19 23:49:15,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1157. [2024-11-19 23:49:15,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1155 states have (on average 1.7515151515151515) internal successors, (2023), 1156 states have internal predecessors, (2023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:15,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 2023 transitions. [2024-11-19 23:49:15,810 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 2023 transitions. Word has length 48 [2024-11-19 23:49:15,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:15,810 INFO L471 AbstractCegarLoop]: Abstraction has 1157 states and 2023 transitions. [2024-11-19 23:49:15,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:15,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 2023 transitions. [2024-11-19 23:49:15,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-19 23:49:15,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:15,811 INFO L215 NwaCegarLoop]: 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] [2024-11-19 23:49:15,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 23:49:15,812 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:15,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:15,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1952355169, now seen corresponding path program 1 times [2024-11-19 23:49:15,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:15,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604793454] [2024-11-19 23:49:15,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:15,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:15,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:15,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:15,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604793454] [2024-11-19 23:49:15,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604793454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:49:15,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:49:15,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:49:15,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015589040] [2024-11-19 23:49:15,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:49:15,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:49:15,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:15,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:49:15,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:15,868 INFO L87 Difference]: Start difference. First operand 1157 states and 2023 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:15,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:15,900 INFO L93 Difference]: Finished difference Result 1853 states and 3045 transitions. [2024-11-19 23:49:15,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:49:15,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-19 23:49:15,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:15,907 INFO L225 Difference]: With dead ends: 1853 [2024-11-19 23:49:15,907 INFO L226 Difference]: Without dead ends: 1481 [2024-11-19 23:49:15,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:15,908 INFO L432 NwaCegarLoop]: 1557 mSDtfsCounter, 1480 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:15,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 1627 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:49:15,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2024-11-19 23:49:15,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1479. [2024-11-19 23:49:15,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1477 states have (on average 1.6784021665538253) internal successors, (2479), 1478 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:15,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2479 transitions. [2024-11-19 23:49:15,941 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2479 transitions. Word has length 48 [2024-11-19 23:49:15,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:15,941 INFO L471 AbstractCegarLoop]: Abstraction has 1479 states and 2479 transitions. [2024-11-19 23:49:15,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:15,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2479 transitions. [2024-11-19 23:49:15,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-19 23:49:15,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:15,942 INFO L215 NwaCegarLoop]: 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] [2024-11-19 23:49:15,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 23:49:15,943 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:15,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:15,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1517819233, now seen corresponding path program 1 times [2024-11-19 23:49:15,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:15,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526310684] [2024-11-19 23:49:15,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:15,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:15,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:15,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:15,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526310684] [2024-11-19 23:49:15,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526310684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:49:15,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:49:15,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:49:15,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852951391] [2024-11-19 23:49:15,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:49:15,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:49:15,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:15,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:49:15,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:15,989 INFO L87 Difference]: Start difference. First operand 1479 states and 2479 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:16,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:16,028 INFO L93 Difference]: Finished difference Result 2771 states and 4329 transitions. [2024-11-19 23:49:16,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:49:16,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-19 23:49:16,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:16,037 INFO L225 Difference]: With dead ends: 2771 [2024-11-19 23:49:16,037 INFO L226 Difference]: Without dead ends: 2077 [2024-11-19 23:49:16,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:16,039 INFO L432 NwaCegarLoop]: 1569 mSDtfsCounter, 1484 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:16,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1631 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:49:16,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2077 states. [2024-11-19 23:49:16,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2077 to 2075. [2024-11-19 23:49:16,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2075 states, 2073 states have (on average 1.5894838398456343) internal successors, (3295), 2074 states have internal predecessors, (3295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:16,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 3295 transitions. [2024-11-19 23:49:16,085 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 3295 transitions. Word has length 48 [2024-11-19 23:49:16,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:16,086 INFO L471 AbstractCegarLoop]: Abstraction has 2075 states and 3295 transitions. [2024-11-19 23:49:16,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:16,086 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 3295 transitions. [2024-11-19 23:49:16,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-19 23:49:16,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:16,086 INFO L215 NwaCegarLoop]: 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] [2024-11-19 23:49:16,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 23:49:16,087 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:16,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:16,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1980038869, now seen corresponding path program 1 times [2024-11-19 23:49:16,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:16,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686571959] [2024-11-19 23:49:16,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:16,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:16,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:16,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:16,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686571959] [2024-11-19 23:49:16,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686571959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:49:16,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:49:16,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 23:49:16,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69760199] [2024-11-19 23:49:16,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:49:16,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:49:16,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:16,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:49:16,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:16,133 INFO L87 Difference]: Start difference. First operand 2075 states and 3295 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:19,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:19,322 INFO L93 Difference]: Finished difference Result 3579 states and 6168 transitions. [2024-11-19 23:49:19,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:49:19,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-19 23:49:19,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:19,332 INFO L225 Difference]: With dead ends: 3579 [2024-11-19 23:49:19,332 INFO L226 Difference]: Without dead ends: 2826 [2024-11-19 23:49:19,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:19,334 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 853 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 998 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 3275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 998 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:19,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [853 Valid, 163 Invalid, 3275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [998 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-19 23:49:19,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2826 states. [2024-11-19 23:49:19,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2826 to 2826. [2024-11-19 23:49:19,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2826 states, 2824 states have (on average 1.6536827195467423) internal successors, (4670), 2825 states have internal predecessors, (4670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:19,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 4670 transitions. [2024-11-19 23:49:19,392 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 4670 transitions. Word has length 48 [2024-11-19 23:49:19,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:19,392 INFO L471 AbstractCegarLoop]: Abstraction has 2826 states and 4670 transitions. [2024-11-19 23:49:19,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:19,393 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 4670 transitions. [2024-11-19 23:49:19,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-19 23:49:19,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:19,394 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:49:19,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 23:49:19,394 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:19,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:19,395 INFO L85 PathProgramCache]: Analyzing trace with hash 879514788, now seen corresponding path program 1 times [2024-11-19 23:49:19,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:19,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49661079] [2024-11-19 23:49:19,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:19,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:19,527 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 23:49:19,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:19,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49661079] [2024-11-19 23:49:19,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49661079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:49:19,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:49:19,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 23:49:19,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211383009] [2024-11-19 23:49:19,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:49:19,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 23:49:19,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:19,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 23:49:19,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 23:49:19,529 INFO L87 Difference]: Start difference. First operand 2826 states and 4670 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:19,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:19,690 INFO L93 Difference]: Finished difference Result 7916 states and 11859 transitions. [2024-11-19 23:49:19,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 23:49:19,691 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-19 23:49:19,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:19,714 INFO L225 Difference]: With dead ends: 7916 [2024-11-19 23:49:19,714 INFO L226 Difference]: Without dead ends: 6986 [2024-11-19 23:49:19,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-19 23:49:19,718 INFO L432 NwaCegarLoop]: 1574 mSDtfsCounter, 4645 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4645 SdHoareTripleChecker+Valid, 3320 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:19,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4645 Valid, 3320 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 23:49:19,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6986 states. [2024-11-19 23:49:19,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6986 to 3938. [2024-11-19 23:49:19,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3938 states, 3936 states have (on average 1.5807926829268293) internal successors, (6222), 3937 states have internal predecessors, (6222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:19,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 6222 transitions. [2024-11-19 23:49:19,865 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 6222 transitions. Word has length 65 [2024-11-19 23:49:19,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:19,865 INFO L471 AbstractCegarLoop]: Abstraction has 3938 states and 6222 transitions. [2024-11-19 23:49:19,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:19,865 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 6222 transitions. [2024-11-19 23:49:19,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-19 23:49:19,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:19,867 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:49:19,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 23:49:19,867 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:19,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:19,868 INFO L85 PathProgramCache]: Analyzing trace with hash -97691996, now seen corresponding path program 1 times [2024-11-19 23:49:19,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:19,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990891938] [2024-11-19 23:49:19,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:19,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:19,996 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 23:49:19,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:19,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990891938] [2024-11-19 23:49:19,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990891938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:49:19,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:49:19,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 23:49:19,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969586728] [2024-11-19 23:49:19,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:49:19,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 23:49:19,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:19,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 23:49:19,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 23:49:19,999 INFO L87 Difference]: Start difference. First operand 3938 states and 6222 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:20,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:20,174 INFO L93 Difference]: Finished difference Result 9204 states and 13667 transitions. [2024-11-19 23:49:20,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 23:49:20,175 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-19 23:49:20,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:20,210 INFO L225 Difference]: With dead ends: 9204 [2024-11-19 23:49:20,210 INFO L226 Difference]: Without dead ends: 7914 [2024-11-19 23:49:20,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-19 23:49:20,216 INFO L432 NwaCegarLoop]: 1574 mSDtfsCounter, 4683 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4683 SdHoareTripleChecker+Valid, 3323 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:20,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4683 Valid, 3323 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:49:20,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7914 states. [2024-11-19 23:49:20,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7914 to 5690. [2024-11-19 23:49:20,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5690 states, 5688 states have (on average 1.5228551336146272) internal successors, (8662), 5689 states have internal predecessors, (8662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:20,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5690 states to 5690 states and 8662 transitions. [2024-11-19 23:49:20,364 INFO L78 Accepts]: Start accepts. Automaton has 5690 states and 8662 transitions. Word has length 65 [2024-11-19 23:49:20,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:20,364 INFO L471 AbstractCegarLoop]: Abstraction has 5690 states and 8662 transitions. [2024-11-19 23:49:20,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:20,365 INFO L276 IsEmpty]: Start isEmpty. Operand 5690 states and 8662 transitions. [2024-11-19 23:49:20,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-19 23:49:20,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:20,366 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:49:20,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 23:49:20,367 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:20,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:20,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1683240868, now seen corresponding path program 1 times [2024-11-19 23:49:20,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:20,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772130344] [2024-11-19 23:49:20,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:20,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:20,475 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 23:49:20,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:20,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772130344] [2024-11-19 23:49:20,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772130344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:49:20,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:49:20,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 23:49:20,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192523679] [2024-11-19 23:49:20,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:49:20,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 23:49:20,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:20,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 23:49:20,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 23:49:20,478 INFO L87 Difference]: Start difference. First operand 5690 states and 8662 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:20,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:20,738 INFO L93 Difference]: Finished difference Result 10492 states and 15467 transitions. [2024-11-19 23:49:20,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 23:49:20,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-19 23:49:20,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:20,760 INFO L225 Difference]: With dead ends: 10492 [2024-11-19 23:49:20,761 INFO L226 Difference]: Without dead ends: 9202 [2024-11-19 23:49:20,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-19 23:49:20,765 INFO L432 NwaCegarLoop]: 1574 mSDtfsCounter, 4677 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4677 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:20,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4677 Valid, 3339 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 23:49:20,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9202 states. [2024-11-19 23:49:20,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9202 to 6978. [2024-11-19 23:49:20,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6978 states, 6976 states have (on average 1.4997133027522935) internal successors, (10462), 6977 states have internal predecessors, (10462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:20,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6978 states to 6978 states and 10462 transitions. [2024-11-19 23:49:20,997 INFO L78 Accepts]: Start accepts. Automaton has 6978 states and 10462 transitions. Word has length 65 [2024-11-19 23:49:20,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:20,997 INFO L471 AbstractCegarLoop]: Abstraction has 6978 states and 10462 transitions. [2024-11-19 23:49:20,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:20,998 INFO L276 IsEmpty]: Start isEmpty. Operand 6978 states and 10462 transitions. [2024-11-19 23:49:20,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-19 23:49:20,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:20,999 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:49:21,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 23:49:21,000 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:21,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:21,001 INFO L85 PathProgramCache]: Analyzing trace with hash 2117776804, now seen corresponding path program 1 times [2024-11-19 23:49:21,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:21,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349077355] [2024-11-19 23:49:21,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:21,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:21,128 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 23:49:21,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:21,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349077355] [2024-11-19 23:49:21,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349077355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:49:21,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:49:21,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 23:49:21,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337311234] [2024-11-19 23:49:21,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:49:21,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 23:49:21,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:21,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 23:49:21,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 23:49:21,131 INFO L87 Difference]: Start difference. First operand 6978 states and 10462 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:21,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:21,417 INFO L93 Difference]: Finished difference Result 11780 states and 17267 transitions. [2024-11-19 23:49:21,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 23:49:21,417 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-19 23:49:21,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:21,438 INFO L225 Difference]: With dead ends: 11780 [2024-11-19 23:49:21,439 INFO L226 Difference]: Without dead ends: 10490 [2024-11-19 23:49:21,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-19 23:49:21,446 INFO L432 NwaCegarLoop]: 1573 mSDtfsCounter, 4649 mSDsluCounter, 1791 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4649 SdHoareTripleChecker+Valid, 3364 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:21,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4649 Valid, 3364 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 23:49:21,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10490 states. [2024-11-19 23:49:21,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10490 to 8266. [2024-11-19 23:49:21,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8266 states, 8264 states have (on average 1.48378509196515) internal successors, (12262), 8265 states have internal predecessors, (12262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:21,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8266 states to 8266 states and 12262 transitions. [2024-11-19 23:49:21,648 INFO L78 Accepts]: Start accepts. Automaton has 8266 states and 12262 transitions. Word has length 65 [2024-11-19 23:49:21,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:21,648 INFO L471 AbstractCegarLoop]: Abstraction has 8266 states and 12262 transitions. [2024-11-19 23:49:21,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:21,649 INFO L276 IsEmpty]: Start isEmpty. Operand 8266 states and 12262 transitions. [2024-11-19 23:49:21,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-19 23:49:21,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:21,651 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:49:21,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 23:49:21,651 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:21,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:21,652 INFO L85 PathProgramCache]: Analyzing trace with hash -999421060, now seen corresponding path program 1 times [2024-11-19 23:49:21,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:21,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798129151] [2024-11-19 23:49:21,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:21,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:21,745 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:21,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:21,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798129151] [2024-11-19 23:49:21,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798129151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:49:21,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:49:21,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:49:21,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820363094] [2024-11-19 23:49:21,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:49:21,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:49:21,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:21,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:49:21,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:21,748 INFO L87 Difference]: Start difference. First operand 8266 states and 12262 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:21,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:21,868 INFO L93 Difference]: Finished difference Result 14998 states and 21680 transitions. [2024-11-19 23:49:21,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:49:21,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-19 23:49:21,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:21,882 INFO L225 Difference]: With dead ends: 14998 [2024-11-19 23:49:21,882 INFO L226 Difference]: Without dead ends: 8268 [2024-11-19 23:49:21,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:21,941 INFO L432 NwaCegarLoop]: 1551 mSDtfsCounter, 37 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 3064 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:21,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 3064 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:49:21,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8268 states. [2024-11-19 23:49:22,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8268 to 8266. [2024-11-19 23:49:22,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8266 states, 8264 states have (on average 1.4687802516940949) internal successors, (12138), 8265 states have internal predecessors, (12138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:22,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8266 states to 8266 states and 12138 transitions. [2024-11-19 23:49:22,122 INFO L78 Accepts]: Start accepts. Automaton has 8266 states and 12138 transitions. Word has length 66 [2024-11-19 23:49:22,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:22,122 INFO L471 AbstractCegarLoop]: Abstraction has 8266 states and 12138 transitions. [2024-11-19 23:49:22,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:22,123 INFO L276 IsEmpty]: Start isEmpty. Operand 8266 states and 12138 transitions. [2024-11-19 23:49:22,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-19 23:49:22,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:22,124 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:49:22,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 23:49:22,125 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:22,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:22,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1980195300, now seen corresponding path program 1 times [2024-11-19 23:49:22,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:22,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546775541] [2024-11-19 23:49:22,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:22,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:22,217 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:22,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:22,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546775541] [2024-11-19 23:49:22,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546775541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:49:22,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:49:22,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:49:22,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565534112] [2024-11-19 23:49:22,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:49:22,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:49:22,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:22,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:49:22,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:22,219 INFO L87 Difference]: Start difference. First operand 8266 states and 12138 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:22,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:22,286 INFO L93 Difference]: Finished difference Result 10839 states and 15722 transitions. [2024-11-19 23:49:22,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:49:22,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-19 23:49:22,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:22,294 INFO L225 Difference]: With dead ends: 10839 [2024-11-19 23:49:22,295 INFO L226 Difference]: Without dead ends: 4109 [2024-11-19 23:49:22,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:22,302 INFO L432 NwaCegarLoop]: 1549 mSDtfsCounter, 31 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3061 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:22,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 3061 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:49:22,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4109 states. [2024-11-19 23:49:22,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4109 to 4101. [2024-11-19 23:49:22,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4101 states, 4099 states have (on average 1.5557453037326177) internal successors, (6377), 4100 states have internal predecessors, (6377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:22,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4101 states to 4101 states and 6377 transitions. [2024-11-19 23:49:22,380 INFO L78 Accepts]: Start accepts. Automaton has 4101 states and 6377 transitions. Word has length 67 [2024-11-19 23:49:22,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:22,380 INFO L471 AbstractCegarLoop]: Abstraction has 4101 states and 6377 transitions. [2024-11-19 23:49:22,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:22,381 INFO L276 IsEmpty]: Start isEmpty. Operand 4101 states and 6377 transitions. [2024-11-19 23:49:22,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-19 23:49:22,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:22,382 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:49:22,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 23:49:22,383 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:22,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:22,383 INFO L85 PathProgramCache]: Analyzing trace with hash 823701102, now seen corresponding path program 1 times [2024-11-19 23:49:22,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:22,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217548753] [2024-11-19 23:49:22,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:22,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:22,469 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:22,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:22,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217548753] [2024-11-19 23:49:22,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217548753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:49:22,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:49:22,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:49:22,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367233151] [2024-11-19 23:49:22,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:49:22,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:49:22,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:22,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:49:22,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:22,472 INFO L87 Difference]: Start difference. First operand 4101 states and 6377 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:22,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:22,514 INFO L93 Difference]: Finished difference Result 5381 states and 8139 transitions. [2024-11-19 23:49:22,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:49:22,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-19 23:49:22,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:22,520 INFO L225 Difference]: With dead ends: 5381 [2024-11-19 23:49:22,520 INFO L226 Difference]: Without dead ends: 2827 [2024-11-19 23:49:22,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:22,525 INFO L432 NwaCegarLoop]: 1543 mSDtfsCounter, 33 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 3040 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:22,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 3040 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:49:22,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2827 states. [2024-11-19 23:49:22,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2827 to 2825. [2024-11-19 23:49:22,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2825 states, 2823 states have (on average 1.6277010272759476) internal successors, (4595), 2824 states have internal predecessors, (4595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:22,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 4595 transitions. [2024-11-19 23:49:22,574 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 4595 transitions. Word has length 68 [2024-11-19 23:49:22,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:22,575 INFO L471 AbstractCegarLoop]: Abstraction has 2825 states and 4595 transitions. [2024-11-19 23:49:22,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:22,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 4595 transitions. [2024-11-19 23:49:22,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-19 23:49:22,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:22,576 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:49:22,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 23:49:22,577 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:22,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:22,577 INFO L85 PathProgramCache]: Analyzing trace with hash -447735840, now seen corresponding path program 1 times [2024-11-19 23:49:22,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:22,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644973453] [2024-11-19 23:49:22,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:22,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:22,656 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:22,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:22,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644973453] [2024-11-19 23:49:22,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644973453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:49:22,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:49:22,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:49:22,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189109136] [2024-11-19 23:49:22,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:49:22,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:49:22,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:22,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:49:22,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:22,658 INFO L87 Difference]: Start difference. First operand 2825 states and 4595 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:22,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:22,688 INFO L93 Difference]: Finished difference Result 3467 states and 5466 transitions. [2024-11-19 23:49:22,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:49:22,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-19 23:49:22,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:22,694 INFO L225 Difference]: With dead ends: 3467 [2024-11-19 23:49:22,694 INFO L226 Difference]: Without dead ends: 2189 [2024-11-19 23:49:22,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:49:22,696 INFO L432 NwaCegarLoop]: 1536 mSDtfsCounter, 30 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:22,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 3025 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:49:22,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2189 states. [2024-11-19 23:49:22,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2189 to 2187. [2024-11-19 23:49:22,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2187 states, 2185 states have (on average 1.700228832951945) internal successors, (3715), 2186 states have internal predecessors, (3715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:22,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 3715 transitions. [2024-11-19 23:49:22,729 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 3715 transitions. Word has length 70 [2024-11-19 23:49:22,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:22,729 INFO L471 AbstractCegarLoop]: Abstraction has 2187 states and 3715 transitions. [2024-11-19 23:49:22,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:22,729 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 3715 transitions. [2024-11-19 23:49:22,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-19 23:49:22,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:22,730 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:49:22,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 23:49:22,731 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:22,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:22,731 INFO L85 PathProgramCache]: Analyzing trace with hash -164665390, now seen corresponding path program 1 times [2024-11-19 23:49:22,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:22,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450031552] [2024-11-19 23:49:22,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:22,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:22,850 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 23:49:22,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:22,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450031552] [2024-11-19 23:49:22,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450031552] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:49:22,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950031039] [2024-11-19 23:49:22,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:22,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:49:22,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:49:22,854 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:49:22,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 23:49:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:22,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 23:49:22,986 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:49:23,509 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:23,510 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 23:49:24,303 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:24,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950031039] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 23:49:24,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 23:49:24,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 20 [2024-11-19 23:49:24,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980752543] [2024-11-19 23:49:24,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 23:49:24,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-19 23:49:24,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:24,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-19 23:49:24,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-11-19 23:49:24,305 INFO L87 Difference]: Start difference. First operand 2187 states and 3715 transitions. Second operand has 20 states, 20 states have (on average 9.55) internal successors, (191), 20 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:25,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:25,131 INFO L93 Difference]: Finished difference Result 4175 states and 6320 transitions. [2024-11-19 23:49:25,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-19 23:49:25,132 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 9.55) internal successors, (191), 20 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-19 23:49:25,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:25,138 INFO L225 Difference]: With dead ends: 4175 [2024-11-19 23:49:25,138 INFO L226 Difference]: Without dead ends: 3535 [2024-11-19 23:49:25,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=394, Invalid=1246, Unknown=0, NotChecked=0, Total=1640 [2024-11-19 23:49:25,141 INFO L432 NwaCegarLoop]: 1496 mSDtfsCounter, 12479 mSDsluCounter, 3227 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12479 SdHoareTripleChecker+Valid, 4723 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:25,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12479 Valid, 4723 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 23:49:25,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3535 states. [2024-11-19 23:49:25,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3535 to 3383. [2024-11-19 23:49:25,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3383 states, 3381 states have (on average 1.5394853593611357) internal successors, (5205), 3382 states have internal predecessors, (5205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:25,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3383 states to 3383 states and 5205 transitions. [2024-11-19 23:49:25,215 INFO L78 Accepts]: Start accepts. Automaton has 3383 states and 5205 transitions. Word has length 72 [2024-11-19 23:49:25,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:25,215 INFO L471 AbstractCegarLoop]: Abstraction has 3383 states and 5205 transitions. [2024-11-19 23:49:25,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.55) internal successors, (191), 20 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:25,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3383 states and 5205 transitions. [2024-11-19 23:49:25,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-19 23:49:25,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:25,218 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:49:25,227 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 23:49:25,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:49:25,419 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:25,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:25,419 INFO L85 PathProgramCache]: Analyzing trace with hash -790906490, now seen corresponding path program 1 times [2024-11-19 23:49:25,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:25,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767066270] [2024-11-19 23:49:25,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:25,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:27,673 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:27,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:27,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767066270] [2024-11-19 23:49:27,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767066270] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:49:27,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287341163] [2024-11-19 23:49:27,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:27,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:49:27,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:49:27,677 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:49:27,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 23:49:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:27,797 INFO L255 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-19 23:49:27,800 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:49:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:28,266 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 23:49:29,281 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:29,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287341163] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 23:49:29,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 23:49:29,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-19 23:49:29,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318438630] [2024-11-19 23:49:29,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 23:49:29,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-19 23:49:29,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:29,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-19 23:49:29,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=650, Unknown=0, NotChecked=0, Total=756 [2024-11-19 23:49:29,283 INFO L87 Difference]: Start difference. First operand 3383 states and 5205 transitions. Second operand has 28 states, 28 states have (on average 6.607142857142857) internal successors, (185), 27 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:30,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:30,680 INFO L93 Difference]: Finished difference Result 7792 states and 10936 transitions. [2024-11-19 23:49:30,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-19 23:49:30,680 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.607142857142857) internal successors, (185), 27 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-19 23:49:30,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:30,692 INFO L225 Difference]: With dead ends: 7792 [2024-11-19 23:49:30,692 INFO L226 Difference]: Without dead ends: 6249 [2024-11-19 23:49:30,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=627, Invalid=2453, Unknown=0, NotChecked=0, Total=3080 [2024-11-19 23:49:30,696 INFO L432 NwaCegarLoop]: 1498 mSDtfsCounter, 15875 mSDsluCounter, 6517 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15875 SdHoareTripleChecker+Valid, 8015 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:30,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15875 Valid, 8015 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 23:49:30,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6249 states. [2024-11-19 23:49:30,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6249 to 6207. [2024-11-19 23:49:30,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6207 states, 6205 states have (on average 1.4236905721192588) internal successors, (8834), 6206 states have internal predecessors, (8834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:30,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6207 states to 6207 states and 8834 transitions. [2024-11-19 23:49:30,842 INFO L78 Accepts]: Start accepts. Automaton has 6207 states and 8834 transitions. Word has length 73 [2024-11-19 23:49:30,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:30,842 INFO L471 AbstractCegarLoop]: Abstraction has 6207 states and 8834 transitions. [2024-11-19 23:49:30,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.607142857142857) internal successors, (185), 27 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:30,843 INFO L276 IsEmpty]: Start isEmpty. Operand 6207 states and 8834 transitions. [2024-11-19 23:49:30,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-19 23:49:30,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:30,844 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:49:30,853 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 23:49:31,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-19 23:49:31,045 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:31,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:31,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1677867256, now seen corresponding path program 1 times [2024-11-19 23:49:31,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:31,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121500325] [2024-11-19 23:49:31,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:31,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:31,463 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:31,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:31,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121500325] [2024-11-19 23:49:31,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121500325] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:49:31,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366210098] [2024-11-19 23:49:31,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:31,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:49:31,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:49:31,467 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:49:31,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 23:49:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:31,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 23:49:31,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:49:32,043 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:32,043 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 23:49:32,770 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:32,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366210098] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 23:49:32,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 23:49:32,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-19 23:49:32,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524511948] [2024-11-19 23:49:32,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 23:49:32,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-19 23:49:32,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:32,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-19 23:49:32,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-11-19 23:49:32,772 INFO L87 Difference]: Start difference. First operand 6207 states and 8834 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:33,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:33,180 INFO L93 Difference]: Finished difference Result 10451 states and 14387 transitions. [2024-11-19 23:49:33,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 23:49:33,181 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-19 23:49:33,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:33,192 INFO L225 Difference]: With dead ends: 10451 [2024-11-19 23:49:33,192 INFO L226 Difference]: Without dead ends: 6371 [2024-11-19 23:49:33,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2024-11-19 23:49:33,199 INFO L432 NwaCegarLoop]: 1498 mSDtfsCounter, 13649 mSDsluCounter, 4703 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13649 SdHoareTripleChecker+Valid, 6201 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:33,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13649 Valid, 6201 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 23:49:33,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6371 states. [2024-11-19 23:49:33,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6371 to 6051. [2024-11-19 23:49:33,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6051 states, 6049 states have (on average 1.416101835014052) internal successors, (8566), 6050 states have internal predecessors, (8566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:33,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6051 states to 6051 states and 8566 transitions. [2024-11-19 23:49:33,339 INFO L78 Accepts]: Start accepts. Automaton has 6051 states and 8566 transitions. Word has length 73 [2024-11-19 23:49:33,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:33,339 INFO L471 AbstractCegarLoop]: Abstraction has 6051 states and 8566 transitions. [2024-11-19 23:49:33,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:33,339 INFO L276 IsEmpty]: Start isEmpty. Operand 6051 states and 8566 transitions. [2024-11-19 23:49:33,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-19 23:49:33,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:33,340 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:49:33,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 23:49:33,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:49:33,544 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:33,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:33,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1338386780, now seen corresponding path program 1 times [2024-11-19 23:49:33,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:33,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122501083] [2024-11-19 23:49:33,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:33,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:33,926 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:33,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:33,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122501083] [2024-11-19 23:49:33,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122501083] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:49:33,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105862864] [2024-11-19 23:49:33,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:33,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:49:33,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:49:33,930 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:49:33,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 23:49:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:34,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-19 23:49:34,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:49:34,533 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:34,533 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 23:49:35,292 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:35,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105862864] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 23:49:35,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 23:49:35,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 29 [2024-11-19 23:49:35,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538871809] [2024-11-19 23:49:35,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 23:49:35,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-19 23:49:35,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:35,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-19 23:49:35,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=668, Unknown=0, NotChecked=0, Total=812 [2024-11-19 23:49:35,294 INFO L87 Difference]: Start difference. First operand 6051 states and 8566 transitions. Second operand has 29 states, 29 states have (on average 6.551724137931035) internal successors, (190), 29 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:36,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:36,015 INFO L93 Difference]: Finished difference Result 14511 states and 19487 transitions. [2024-11-19 23:49:36,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 23:49:36,016 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.551724137931035) internal successors, (190), 29 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-19 23:49:36,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:36,033 INFO L225 Difference]: With dead ends: 14511 [2024-11-19 23:49:36,033 INFO L226 Difference]: Without dead ends: 10563 [2024-11-19 23:49:36,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=434, Invalid=1458, Unknown=0, NotChecked=0, Total=1892 [2024-11-19 23:49:36,041 INFO L432 NwaCegarLoop]: 1513 mSDtfsCounter, 10634 mSDsluCounter, 4961 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10634 SdHoareTripleChecker+Valid, 6474 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:36,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10634 Valid, 6474 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 23:49:36,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10563 states. [2024-11-19 23:49:36,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10563 to 10447. [2024-11-19 23:49:36,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10447 states, 10445 states have (on average 1.3460986117759695) internal successors, (14060), 10446 states have internal predecessors, (14060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:36,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10447 states to 10447 states and 14060 transitions. [2024-11-19 23:49:36,315 INFO L78 Accepts]: Start accepts. Automaton has 10447 states and 14060 transitions. Word has length 74 [2024-11-19 23:49:36,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:36,316 INFO L471 AbstractCegarLoop]: Abstraction has 10447 states and 14060 transitions. [2024-11-19 23:49:36,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.551724137931035) internal successors, (190), 29 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:36,316 INFO L276 IsEmpty]: Start isEmpty. Operand 10447 states and 14060 transitions. [2024-11-19 23:49:36,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-19 23:49:36,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:36,318 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:49:36,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 23:49:36,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:49:36,519 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:36,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:36,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1997806360, now seen corresponding path program 1 times [2024-11-19 23:49:36,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:36,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94556695] [2024-11-19 23:49:36,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:36,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:37,516 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:37,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:37,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94556695] [2024-11-19 23:49:37,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94556695] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:49:37,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613959458] [2024-11-19 23:49:37,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:37,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:49:37,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:49:37,519 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:49:37,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 23:49:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:37,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-19 23:49:37,647 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:49:38,350 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:38,350 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 23:49:39,324 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:39,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613959458] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 23:49:39,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 23:49:39,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 35 [2024-11-19 23:49:39,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746664574] [2024-11-19 23:49:39,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 23:49:39,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-19 23:49:39,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:39,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-19 23:49:39,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1074, Unknown=0, NotChecked=0, Total=1190 [2024-11-19 23:49:39,327 INFO L87 Difference]: Start difference. First operand 10447 states and 14060 transitions. Second operand has 35 states, 35 states have (on average 5.9714285714285715) internal successors, (209), 35 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:46,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:49:46,620 INFO L93 Difference]: Finished difference Result 23427 states and 30928 transitions. [2024-11-19 23:49:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2024-11-19 23:49:46,621 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 5.9714285714285715) internal successors, (209), 35 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-19 23:49:46,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:49:46,639 INFO L225 Difference]: With dead ends: 23427 [2024-11-19 23:49:46,639 INFO L226 Difference]: Without dead ends: 18769 [2024-11-19 23:49:46,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4615 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=2795, Invalid=11247, Unknown=0, NotChecked=0, Total=14042 [2024-11-19 23:49:46,649 INFO L432 NwaCegarLoop]: 1533 mSDtfsCounter, 17350 mSDsluCounter, 20090 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17350 SdHoareTripleChecker+Valid, 21623 SdHoareTripleChecker+Invalid, 1595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:49:46,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17350 Valid, 21623 Invalid, 1595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1524 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 23:49:46,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18769 states. [2024-11-19 23:49:46,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18769 to 8990. [2024-11-19 23:49:46,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8990 states, 8988 states have (on average 1.3607031597685804) internal successors, (12230), 8989 states have internal predecessors, (12230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:46,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8990 states to 8990 states and 12230 transitions. [2024-11-19 23:49:46,973 INFO L78 Accepts]: Start accepts. Automaton has 8990 states and 12230 transitions. Word has length 75 [2024-11-19 23:49:46,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:49:46,973 INFO L471 AbstractCegarLoop]: Abstraction has 8990 states and 12230 transitions. [2024-11-19 23:49:46,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 5.9714285714285715) internal successors, (209), 35 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:49:46,974 INFO L276 IsEmpty]: Start isEmpty. Operand 8990 states and 12230 transitions. [2024-11-19 23:49:46,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-19 23:49:46,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:49:46,975 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:49:46,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 23:49:47,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-19 23:49:47,180 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:49:47,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:49:47,181 INFO L85 PathProgramCache]: Analyzing trace with hash 19060712, now seen corresponding path program 1 times [2024-11-19 23:49:47,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:49:47,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951517250] [2024-11-19 23:49:47,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:47,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:49:47,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:47,971 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:47,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:49:47,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951517250] [2024-11-19 23:49:47,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951517250] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:49:47,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276705810] [2024-11-19 23:49:47,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:49:47,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:49:47,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:49:47,975 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:49:47,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 23:49:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:49:48,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-19 23:49:48,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:49:51,703 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:51,703 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 23:49:55,443 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:49:55,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276705810] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 23:49:55,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 23:49:55,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 27, 23] total 58 [2024-11-19 23:49:55,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830720432] [2024-11-19 23:49:55,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 23:49:55,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-19 23:49:55,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:49:55,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-19 23:49:55,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=449, Invalid=2857, Unknown=0, NotChecked=0, Total=3306 [2024-11-19 23:49:55,446 INFO L87 Difference]: Start difference. First operand 8990 states and 12230 transitions. Second operand has 58 states, 58 states have (on average 3.603448275862069) internal successors, (209), 58 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:50:11,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:50:11,652 INFO L93 Difference]: Finished difference Result 12651 states and 16909 transitions. [2024-11-19 23:50:11,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2024-11-19 23:50:11,653 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 3.603448275862069) internal successors, (209), 58 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-19 23:50:11,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:50:11,661 INFO L225 Difference]: With dead ends: 12651 [2024-11-19 23:50:11,662 INFO L226 Difference]: Without dead ends: 8129 [2024-11-19 23:50:11,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5411 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=3468, Invalid=16272, Unknown=0, NotChecked=0, Total=19740 [2024-11-19 23:50:11,669 INFO L432 NwaCegarLoop]: 1527 mSDtfsCounter, 20757 mSDsluCounter, 24842 mSDsCounter, 0 mSdLazyCounter, 2529 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20757 SdHoareTripleChecker+Valid, 26369 SdHoareTripleChecker+Invalid, 2608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-19 23:50:11,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20757 Valid, 26369 Invalid, 2608 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [79 Valid, 2529 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-19 23:50:11,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8129 states. [2024-11-19 23:50:11,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8129 to 5866. [2024-11-19 23:50:11,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5866 states, 5864 states have (on average 1.4208731241473398) internal successors, (8332), 5865 states have internal predecessors, (8332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:50:11,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5866 states to 5866 states and 8332 transitions. [2024-11-19 23:50:11,893 INFO L78 Accepts]: Start accepts. Automaton has 5866 states and 8332 transitions. Word has length 75 [2024-11-19 23:50:11,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:50:11,893 INFO L471 AbstractCegarLoop]: Abstraction has 5866 states and 8332 transitions. [2024-11-19 23:50:11,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 3.603448275862069) internal successors, (209), 58 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:50:11,894 INFO L276 IsEmpty]: Start isEmpty. Operand 5866 states and 8332 transitions. [2024-11-19 23:50:11,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-19 23:50:11,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:50:11,895 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:50:11,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 23:50:12,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:50:12,100 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:50:12,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:50:12,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1809278814, now seen corresponding path program 1 times [2024-11-19 23:50:12,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:50:12,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409434408] [2024-11-19 23:50:12,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:50:12,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:50:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:50:14,070 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:50:14,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:50:14,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409434408] [2024-11-19 23:50:14,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409434408] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:50:14,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762228592] [2024-11-19 23:50:14,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:50:14,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:50:14,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:50:14,072 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:50:14,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 23:50:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:50:14,180 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-19 23:50:14,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:50:16,602 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:50:16,602 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 23:50:18,753 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:50:18,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762228592] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 23:50:18,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 23:50:18,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 17, 20] total 59 [2024-11-19 23:50:18,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218190973] [2024-11-19 23:50:18,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 23:50:18,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-11-19 23:50:18,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:50:18,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-11-19 23:50:18,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=3169, Unknown=0, NotChecked=0, Total=3422 [2024-11-19 23:50:18,756 INFO L87 Difference]: Start difference. First operand 5866 states and 8332 transitions. Second operand has 59 states, 59 states have (on average 3.440677966101695) internal successors, (203), 59 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)