./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.7.ufo.UNBOUNDED.pals+Problem12_label07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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.7.ufo.UNBOUNDED.pals+Problem12_label07.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 fdba2ae989c969b8ea983da7229bdc32604e4ef890fc1d03498078fc576fe644 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 02:55:22,493 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 02:55:22,574 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 02:55:22,580 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 02:55:22,580 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 02:55:22,598 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 02:55:22,599 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 02:55:22,600 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 02:55:22,600 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 02:55:22,600 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 02:55:22,601 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 02:55:22,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 02:55:22,602 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 02:55:22,602 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 02:55:22,603 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 02:55:22,603 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 02:55:22,604 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 02:55:22,604 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 02:55:22,604 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 02:55:22,605 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 02:55:22,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 02:55:22,606 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 02:55:22,606 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 02:55:22,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 02:55:22,607 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 02:55:22,607 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 02:55:22,607 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 02:55:22,608 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 02:55:22,608 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 02:55:22,609 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 02:55:22,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 02:55:22,615 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 02:55:22,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:55:22,619 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 02:55:22,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 02:55:22,619 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 02:55:22,620 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 02:55:22,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 02:55:22,620 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 02:55:22,620 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 02:55:22,620 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 02:55:22,621 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 02:55:22,621 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdba2ae989c969b8ea983da7229bdc32604e4ef890fc1d03498078fc576fe644 [2024-10-24 02:55:22,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 02:55:22,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 02:55:22,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 02:55:22,901 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 02:55:22,902 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 02:55:22,903 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label07.c [2024-10-24 02:55:24,328 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 02:55:24,762 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 02:55:24,764 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label07.c [2024-10-24 02:55:24,799 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a76df784/8b4a14acebdd4e0da63efebd65ad23c4/FLAG5d931fd52 [2024-10-24 02:55:24,817 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a76df784/8b4a14acebdd4e0da63efebd65ad23c4 [2024-10-24 02:55:24,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 02:55:24,823 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 02:55:24,826 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 02:55:24,826 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 02:55:24,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 02:55:24,832 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:55:24" (1/1) ... [2024-10-24 02:55:24,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67107081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:55:24, skipping insertion in model container [2024-10-24 02:55:24,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:55:24" (1/1) ... [2024-10-24 02:55:24,947 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 02:55:25,336 WARN L248 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.7.ufo.UNBOUNDED.pals+Problem12_label07.c[20454,20467] [2024-10-24 02:55:25,359 WARN L248 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.7.ufo.UNBOUNDED.pals+Problem12_label07.c[21296,21309] [2024-10-24 02:55:26,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:55:26,037 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 02:55:26,099 WARN L248 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.7.ufo.UNBOUNDED.pals+Problem12_label07.c[20454,20467] [2024-10-24 02:55:26,106 WARN L248 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.7.ufo.UNBOUNDED.pals+Problem12_label07.c[21296,21309] [2024-10-24 02:55:26,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:55:26,561 INFO L204 MainTranslator]: Completed translation [2024-10-24 02:55:26,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:55:26 WrapperNode [2024-10-24 02:55:26,562 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 02:55:26,563 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 02:55:26,563 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 02:55:26,563 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 02:55:26,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:55:26" (1/1) ... [2024-10-24 02:55:26,631 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:55:26" (1/1) ... [2024-10-24 02:55:26,913 INFO L138 Inliner]: procedures = 39, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5219 [2024-10-24 02:55:26,914 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 02:55:26,915 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 02:55:26,915 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 02:55:26,915 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 02:55:26,926 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:55:26" (1/1) ... [2024-10-24 02:55:26,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:55:26" (1/1) ... [2024-10-24 02:55:26,980 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:55:26" (1/1) ... [2024-10-24 02:55:27,252 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]. [2024-10-24 02:55:27,252 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:55:26" (1/1) ... [2024-10-24 02:55:27,253 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:55:26" (1/1) ... [2024-10-24 02:55:27,455 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:55:26" (1/1) ... [2024-10-24 02:55:27,489 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:55:26" (1/1) ... [2024-10-24 02:55:27,516 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:55:26" (1/1) ... [2024-10-24 02:55:27,548 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:55:26" (1/1) ... [2024-10-24 02:55:27,700 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 02:55:27,702 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 02:55:27,702 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 02:55:27,703 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 02:55:27,704 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:55:26" (1/1) ... [2024-10-24 02:55:27,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:55:27,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:55:27,765 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) [2024-10-24 02:55:27,771 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 [2024-10-24 02:55:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 02:55:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 02:55:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 02:55:27,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 02:55:27,922 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 02:55:27,924 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 02:55:32,150 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2024-10-24 02:55:32,151 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 02:55:32,207 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 02:55:32,207 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-24 02:55:32,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:55:32 BoogieIcfgContainer [2024-10-24 02:55:32,208 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 02:55:32,213 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 02:55:32,213 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 02:55:32,217 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 02:55:32,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:55:24" (1/3) ... [2024-10-24 02:55:32,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f0a4ab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:55:32, skipping insertion in model container [2024-10-24 02:55:32,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:55:26" (2/3) ... [2024-10-24 02:55:32,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f0a4ab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:55:32, skipping insertion in model container [2024-10-24 02:55:32,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:55:32" (3/3) ... [2024-10-24 02:55:32,222 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label07.c [2024-10-24 02:55:32,241 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 02:55:32,241 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 02:55:32,332 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 02:55:32,338 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;@5101e598, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 02:55:32,338 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 02:55:32,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 867 states, 864 states have (on average 1.9710648148148149) internal successors, (1703), 866 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:32,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-24 02:55:32,358 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:55:32,359 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-24 02:55:32,359 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:55:32,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:55:32,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1750769947, now seen corresponding path program 1 times [2024-10-24 02:55:32,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:55:32,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973200832] [2024-10-24 02:55:32,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:55:32,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:55:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:55:32,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:55:32,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:55:32,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973200832] [2024-10-24 02:55:32,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973200832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:55:32,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:55:32,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 02:55:32,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025869455] [2024-10-24 02:55:32,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:55:32,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:55:32,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:55:32,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:55:32,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:55:32,704 INFO L87 Difference]: Start difference. First operand has 867 states, 864 states have (on average 1.9710648148148149) internal successors, (1703), 866 states have internal predecessors, (1703), 0 states have call successors, (0), 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 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:35,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:55:35,811 INFO L93 Difference]: Finished difference Result 2433 states and 4800 transitions. [2024-10-24 02:55:35,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:55:35,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2024-10-24 02:55:35,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:55:35,846 INFO L225 Difference]: With dead ends: 2433 [2024-10-24 02:55:35,846 INFO L226 Difference]: Without dead ends: 1614 [2024-10-24 02:55:35,855 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 [2024-10-24 02:55:35,861 INFO L432 NwaCegarLoop]: 613 mSDtfsCounter, 1008 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2279 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 2870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-24 02:55:35,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 622 Invalid, 2870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2279 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-24 02:55:35,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2024-10-24 02:55:35,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1614. [2024-10-24 02:55:35,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1612 states have (on average 1.6495037220843674) internal successors, (2659), 1613 states have internal predecessors, (2659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:35,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 2659 transitions. [2024-10-24 02:55:35,994 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 2659 transitions. Word has length 6 [2024-10-24 02:55:35,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:55:35,994 INFO L471 AbstractCegarLoop]: Abstraction has 1614 states and 2659 transitions. [2024-10-24 02:55:35,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:35,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 2659 transitions. [2024-10-24 02:55:35,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-24 02:55:35,997 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:55:35,997 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] [2024-10-24 02:55:35,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 02:55:35,998 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:55:35,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:55:36,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1401331215, now seen corresponding path program 1 times [2024-10-24 02:55:36,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:55:36,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131050419] [2024-10-24 02:55:36,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:55:36,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:55:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:55:36,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:55:36,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:55:36,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131050419] [2024-10-24 02:55:36,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131050419] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:55:36,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:55:36,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 02:55:36,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463900223] [2024-10-24 02:55:36,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:55:36,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 02:55:36,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:55:36,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 02:55:36,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 02:55:36,207 INFO L87 Difference]: Start difference. First operand 1614 states and 2659 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:36,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:55:36,297 INFO L93 Difference]: Finished difference Result 1672 states and 2751 transitions. [2024-10-24 02:55:36,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 02:55:36,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-10-24 02:55:36,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:55:36,304 INFO L225 Difference]: With dead ends: 1672 [2024-10-24 02:55:36,305 INFO L226 Difference]: Without dead ends: 1614 [2024-10-24 02:55:36,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 02:55:36,307 INFO L432 NwaCegarLoop]: 1629 mSDtfsCounter, 0 mSDsluCounter, 3204 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4833 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:55:36,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4833 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 02:55:36,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2024-10-24 02:55:36,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1614. [2024-10-24 02:55:36,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1612 states have (on average 1.61848635235732) internal successors, (2609), 1613 states have internal predecessors, (2609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:36,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 2609 transitions. [2024-10-24 02:55:36,339 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 2609 transitions. Word has length 25 [2024-10-24 02:55:36,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:55:36,339 INFO L471 AbstractCegarLoop]: Abstraction has 1614 states and 2609 transitions. [2024-10-24 02:55:36,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:36,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 2609 transitions. [2024-10-24 02:55:36,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-24 02:55:36,342 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:55:36,342 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:55:36,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 02:55:36,343 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:55:36,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:55:36,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1958226728, now seen corresponding path program 1 times [2024-10-24 02:55:36,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:55:36,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331192300] [2024-10-24 02:55:36,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:55:36,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:55:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:55:36,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:55:36,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:55:36,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331192300] [2024-10-24 02:55:36,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331192300] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:55:36,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:55:36,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 02:55:36,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87105934] [2024-10-24 02:55:36,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:55:36,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 02:55:36,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:55:36,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 02:55:36,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 02:55:36,625 INFO L87 Difference]: Start difference. First operand 1614 states and 2609 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:37,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:55:37,055 INFO L93 Difference]: Finished difference Result 2384 states and 3855 transitions. [2024-10-24 02:55:37,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:55:37,056 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 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 [2024-10-24 02:55:37,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:55:37,066 INFO L225 Difference]: With dead ends: 2384 [2024-10-24 02:55:37,066 INFO L226 Difference]: Without dead ends: 2329 [2024-10-24 02:55:37,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-10-24 02:55:37,071 INFO L432 NwaCegarLoop]: 1573 mSDtfsCounter, 11585 mSDsluCounter, 2680 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11585 SdHoareTripleChecker+Valid, 4253 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:55:37,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11585 Valid, 4253 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 02:55:37,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2024-10-24 02:55:37,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 1667. [2024-10-24 02:55:37,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1665 states have (on average 1.6186186186186187) internal successors, (2695), 1666 states have internal predecessors, (2695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:37,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2695 transitions. [2024-10-24 02:55:37,117 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2695 transitions. Word has length 74 [2024-10-24 02:55:37,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:55:37,121 INFO L471 AbstractCegarLoop]: Abstraction has 1667 states and 2695 transitions. [2024-10-24 02:55:37,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:37,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2695 transitions. [2024-10-24 02:55:37,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 02:55:37,127 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:55:37,127 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:55:37,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 02:55:37,128 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:55:37,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:55:37,129 INFO L85 PathProgramCache]: Analyzing trace with hash -783812792, now seen corresponding path program 1 times [2024-10-24 02:55:37,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:55:37,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454654877] [2024-10-24 02:55:37,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:55:37,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:55:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:55:37,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:55:37,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:55:37,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454654877] [2024-10-24 02:55:37,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454654877] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:55:37,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:55:37,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:55:37,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805526066] [2024-10-24 02:55:37,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:55:37,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:55:37,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:55:37,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:55:37,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:55:37,251 INFO L87 Difference]: Start difference. First operand 1667 states and 2695 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:37,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:55:37,300 INFO L93 Difference]: Finished difference Result 1872 states and 3026 transitions. [2024-10-24 02:55:37,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:55:37,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-24 02:55:37,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:55:37,309 INFO L225 Difference]: With dead ends: 1872 [2024-10-24 02:55:37,310 INFO L226 Difference]: Without dead ends: 1764 [2024-10-24 02:55:37,313 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 [2024-10-24 02:55:37,314 INFO L432 NwaCegarLoop]: 1575 mSDtfsCounter, 1498 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:55:37,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1656 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:55:37,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-10-24 02:55:37,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1760. [2024-10-24 02:55:37,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1758 states have (on average 1.617178612059158) internal successors, (2843), 1759 states have internal predecessors, (2843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:37,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2843 transitions. [2024-10-24 02:55:37,356 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2843 transitions. Word has length 76 [2024-10-24 02:55:37,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:55:37,357 INFO L471 AbstractCegarLoop]: Abstraction has 1760 states and 2843 transitions. [2024-10-24 02:55:37,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:37,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2843 transitions. [2024-10-24 02:55:37,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 02:55:37,362 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:55:37,362 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:55:37,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 02:55:37,363 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:55:37,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:55:37,363 INFO L85 PathProgramCache]: Analyzing trace with hash -781667840, now seen corresponding path program 1 times [2024-10-24 02:55:37,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:55:37,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493345731] [2024-10-24 02:55:37,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:55:37,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:55:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:55:37,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:55:37,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:55:37,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493345731] [2024-10-24 02:55:37,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493345731] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:55:37,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:55:37,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 02:55:37,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634197306] [2024-10-24 02:55:37,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:55:37,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 02:55:37,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:55:37,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 02:55:37,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-24 02:55:37,966 INFO L87 Difference]: Start difference. First operand 1760 states and 2843 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:38,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:55:38,382 INFO L93 Difference]: Finished difference Result 1963 states and 3167 transitions. [2024-10-24 02:55:38,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 02:55:38,382 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-24 02:55:38,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:55:38,390 INFO L225 Difference]: With dead ends: 1963 [2024-10-24 02:55:38,390 INFO L226 Difference]: Without dead ends: 1762 [2024-10-24 02:55:38,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-10-24 02:55:38,392 INFO L432 NwaCegarLoop]: 1571 mSDtfsCounter, 4560 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4560 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:55:38,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4560 Valid, 2084 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 02:55:38,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2024-10-24 02:55:38,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1760. [2024-10-24 02:55:38,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1758 states have (on average 1.6160409556313993) internal successors, (2841), 1759 states have internal predecessors, (2841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:38,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2841 transitions. [2024-10-24 02:55:38,445 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2841 transitions. Word has length 76 [2024-10-24 02:55:38,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:55:38,445 INFO L471 AbstractCegarLoop]: Abstraction has 1760 states and 2841 transitions. [2024-10-24 02:55:38,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:38,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2841 transitions. [2024-10-24 02:55:38,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 02:55:38,447 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:55:38,448 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:55:38,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 02:55:38,448 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:55:38,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:55:38,450 INFO L85 PathProgramCache]: Analyzing trace with hash -948794983, now seen corresponding path program 1 times [2024-10-24 02:55:38,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:55:38,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541639972] [2024-10-24 02:55:38,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:55:38,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:55:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:55:38,553 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-24 02:55:38,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:55:38,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541639972] [2024-10-24 02:55:38,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541639972] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:55:38,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:55:38,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 02:55:38,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183812359] [2024-10-24 02:55:38,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:55:38,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:55:38,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:55:38,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:55:38,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:55:38,557 INFO L87 Difference]: Start difference. First operand 1760 states and 2841 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:41,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:55:41,772 INFO L93 Difference]: Finished difference Result 4766 states and 7768 transitions. [2024-10-24 02:55:41,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:55:41,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 0 states have call successors, (0), 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 77 [2024-10-24 02:55:41,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:55:41,785 INFO L225 Difference]: With dead ends: 4766 [2024-10-24 02:55:41,785 INFO L226 Difference]: Without dead ends: 3262 [2024-10-24 02:55:41,788 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 [2024-10-24 02:55:41,788 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 869 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:55:41,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 615 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-24 02:55:41,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2024-10-24 02:55:41,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 3262. [2024-10-24 02:55:41,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3262 states, 3260 states have (on average 1.429754601226994) internal successors, (4661), 3261 states have internal predecessors, (4661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:41,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 4661 transitions. [2024-10-24 02:55:41,851 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 4661 transitions. Word has length 77 [2024-10-24 02:55:41,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:55:41,851 INFO L471 AbstractCegarLoop]: Abstraction has 3262 states and 4661 transitions. [2024-10-24 02:55:41,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:41,852 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 4661 transitions. [2024-10-24 02:55:41,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 02:55:41,853 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:55:41,853 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:55:41,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 02:55:41,853 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:55:41,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:55:41,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1409717390, now seen corresponding path program 1 times [2024-10-24 02:55:41,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:55:41,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451007515] [2024-10-24 02:55:41,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:55:41,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:55:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:55:42,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:55:42,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:55:42,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451007515] [2024-10-24 02:55:42,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451007515] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:55:42,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:55:42,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 02:55:42,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904511584] [2024-10-24 02:55:42,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:55:42,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 02:55:42,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:55:42,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 02:55:42,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 02:55:42,059 INFO L87 Difference]: Start difference. First operand 3262 states and 4661 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:42,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:55:42,103 INFO L93 Difference]: Finished difference Result 3268 states and 4668 transitions. [2024-10-24 02:55:42,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 02:55:42,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-10-24 02:55:42,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:55:42,116 INFO L225 Difference]: With dead ends: 3268 [2024-10-24 02:55:42,117 INFO L226 Difference]: Without dead ends: 3266 [2024-10-24 02:55:42,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 02:55:42,121 INFO L432 NwaCegarLoop]: 1578 mSDtfsCounter, 0 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4726 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:55:42,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4726 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:55:42,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3266 states. [2024-10-24 02:55:42,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3266 to 3266. [2024-10-24 02:55:42,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3266 states, 3264 states have (on average 1.428921568627451) internal successors, (4664), 3265 states have internal predecessors, (4664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:42,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3266 states to 3266 states and 4664 transitions. [2024-10-24 02:55:42,178 INFO L78 Accepts]: Start accepts. Automaton has 3266 states and 4664 transitions. Word has length 77 [2024-10-24 02:55:42,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:55:42,179 INFO L471 AbstractCegarLoop]: Abstraction has 3266 states and 4664 transitions. [2024-10-24 02:55:42,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:42,179 INFO L276 IsEmpty]: Start isEmpty. Operand 3266 states and 4664 transitions. [2024-10-24 02:55:42,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 02:55:42,180 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:55:42,180 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:55:42,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 02:55:42,181 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:55:42,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:55:42,181 INFO L85 PathProgramCache]: Analyzing trace with hash 89162976, now seen corresponding path program 1 times [2024-10-24 02:55:42,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:55:42,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919394544] [2024-10-24 02:55:42,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:55:42,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:55:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:55:42,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:55:42,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:55:42,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919394544] [2024-10-24 02:55:42,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919394544] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:55:42,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:55:42,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:55:42,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288435532] [2024-10-24 02:55:42,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:55:42,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:55:42,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:55:42,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:55:42,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:55:42,269 INFO L87 Difference]: Start difference. First operand 3266 states and 4664 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:42,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:55:42,306 INFO L93 Difference]: Finished difference Result 3660 states and 5284 transitions. [2024-10-24 02:55:42,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:55:42,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-10-24 02:55:42,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:55:42,317 INFO L225 Difference]: With dead ends: 3660 [2024-10-24 02:55:42,317 INFO L226 Difference]: Without dead ends: 3455 [2024-10-24 02:55:42,319 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 [2024-10-24 02:55:42,320 INFO L432 NwaCegarLoop]: 1644 mSDtfsCounter, 1515 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1737 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 [2024-10-24 02:55:42,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1737 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:55:42,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3455 states. [2024-10-24 02:55:42,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3455 to 3453. [2024-10-24 02:55:42,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3453 states, 3451 states have (on average 1.4358157055925818) internal successors, (4955), 3452 states have internal predecessors, (4955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:42,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3453 states to 3453 states and 4955 transitions. [2024-10-24 02:55:42,380 INFO L78 Accepts]: Start accepts. Automaton has 3453 states and 4955 transitions. Word has length 78 [2024-10-24 02:55:42,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:55:42,381 INFO L471 AbstractCegarLoop]: Abstraction has 3453 states and 4955 transitions. [2024-10-24 02:55:42,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:42,381 INFO L276 IsEmpty]: Start isEmpty. Operand 3453 states and 4955 transitions. [2024-10-24 02:55:42,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 02:55:42,382 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:55:42,382 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:55:42,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 02:55:42,382 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:55:42,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:55:42,383 INFO L85 PathProgramCache]: Analyzing trace with hash -321223712, now seen corresponding path program 1 times [2024-10-24 02:55:42,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:55:42,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220563424] [2024-10-24 02:55:42,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:55:42,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:55:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:55:42,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:55:42,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:55:42,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220563424] [2024-10-24 02:55:42,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220563424] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:55:42,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:55:42,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:55:42,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369646904] [2024-10-24 02:55:42,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:55:42,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:55:42,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:55:42,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:55:42,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:55:42,452 INFO L87 Difference]: Start difference. First operand 3453 states and 4955 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:42,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:55:42,502 INFO L93 Difference]: Finished difference Result 4205 states and 6129 transitions. [2024-10-24 02:55:42,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:55:42,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-10-24 02:55:42,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:55:42,515 INFO L225 Difference]: With dead ends: 4205 [2024-10-24 02:55:42,515 INFO L226 Difference]: Without dead ends: 3813 [2024-10-24 02:55:42,516 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 [2024-10-24 02:55:42,518 INFO L432 NwaCegarLoop]: 1642 mSDtfsCounter, 1513 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1739 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 [2024-10-24 02:55:42,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1739 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:55:42,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3813 states. [2024-10-24 02:55:42,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3813 to 3811. [2024-10-24 02:55:42,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3811 states, 3809 states have (on average 1.44526122341822) internal successors, (5505), 3810 states have internal predecessors, (5505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:42,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3811 states to 3811 states and 5505 transitions. [2024-10-24 02:55:42,583 INFO L78 Accepts]: Start accepts. Automaton has 3811 states and 5505 transitions. Word has length 78 [2024-10-24 02:55:42,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:55:42,583 INFO L471 AbstractCegarLoop]: Abstraction has 3811 states and 5505 transitions. [2024-10-24 02:55:42,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:42,584 INFO L276 IsEmpty]: Start isEmpty. Operand 3811 states and 5505 transitions. [2024-10-24 02:55:42,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 02:55:42,584 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:55:42,585 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:55:42,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 02:55:42,585 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:55:42,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:55:42,586 INFO L85 PathProgramCache]: Analyzing trace with hash -549862944, now seen corresponding path program 1 times [2024-10-24 02:55:42,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:55:42,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250088323] [2024-10-24 02:55:42,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:55:42,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:55:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:55:42,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:55:42,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:55:42,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250088323] [2024-10-24 02:55:42,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250088323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:55:42,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:55:42,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:55:42,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605995236] [2024-10-24 02:55:42,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:55:42,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:55:42,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:55:42,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:55:42,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:55:42,653 INFO L87 Difference]: Start difference. First operand 3811 states and 5505 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:42,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:55:42,760 INFO L93 Difference]: Finished difference Result 5247 states and 7723 transitions. [2024-10-24 02:55:42,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:55:42,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-10-24 02:55:42,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:55:42,776 INFO L225 Difference]: With dead ends: 5247 [2024-10-24 02:55:42,777 INFO L226 Difference]: Without dead ends: 4497 [2024-10-24 02:55:42,779 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 [2024-10-24 02:55:42,779 INFO L432 NwaCegarLoop]: 1630 mSDtfsCounter, 1509 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1735 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 [2024-10-24 02:55:42,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1735 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:55:42,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4497 states. [2024-10-24 02:55:42,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4497 to 4495. [2024-10-24 02:55:42,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4495 states, 4493 states have (on average 1.4558201647006455) internal successors, (6541), 4494 states have internal predecessors, (6541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:42,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4495 states to 4495 states and 6541 transitions. [2024-10-24 02:55:42,870 INFO L78 Accepts]: Start accepts. Automaton has 4495 states and 6541 transitions. Word has length 78 [2024-10-24 02:55:42,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:55:42,870 INFO L471 AbstractCegarLoop]: Abstraction has 4495 states and 6541 transitions. [2024-10-24 02:55:42,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:42,870 INFO L276 IsEmpty]: Start isEmpty. Operand 4495 states and 6541 transitions. [2024-10-24 02:55:42,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 02:55:42,871 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:55:42,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:55:42,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 02:55:42,872 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:55:42,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:55:42,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1175519008, now seen corresponding path program 1 times [2024-10-24 02:55:42,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:55:42,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684250969] [2024-10-24 02:55:42,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:55:42,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:55:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:55:42,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:55:42,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:55:42,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684250969] [2024-10-24 02:55:42,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684250969] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:55:42,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:55:42,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:55:42,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240977353] [2024-10-24 02:55:42,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:55:42,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:55:42,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:55:42,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:55:42,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:55:42,936 INFO L87 Difference]: Start difference. First operand 4495 states and 6541 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:43,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:55:43,014 INFO L93 Difference]: Finished difference Result 7235 states and 10719 transitions. [2024-10-24 02:55:43,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:55:43,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-10-24 02:55:43,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:55:43,026 INFO L225 Difference]: With dead ends: 7235 [2024-10-24 02:55:43,026 INFO L226 Difference]: Without dead ends: 5801 [2024-10-24 02:55:43,030 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 [2024-10-24 02:55:43,030 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 1507 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1737 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 [2024-10-24 02:55:43,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1737 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:55:43,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5801 states. [2024-10-24 02:55:43,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5801 to 5799. [2024-10-24 02:55:43,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5799 states, 5797 states have (on average 1.4636881145420044) internal successors, (8485), 5798 states have internal predecessors, (8485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:43,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5799 states to 5799 states and 8485 transitions. [2024-10-24 02:55:43,153 INFO L78 Accepts]: Start accepts. Automaton has 5799 states and 8485 transitions. Word has length 78 [2024-10-24 02:55:43,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:55:43,154 INFO L471 AbstractCegarLoop]: Abstraction has 5799 states and 8485 transitions. [2024-10-24 02:55:43,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:43,154 INFO L276 IsEmpty]: Start isEmpty. Operand 5799 states and 8485 transitions. [2024-10-24 02:55:43,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 02:55:43,155 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:55:43,155 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:55:43,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 02:55:43,155 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:55:43,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:55:43,156 INFO L85 PathProgramCache]: Analyzing trace with hash -286785568, now seen corresponding path program 1 times [2024-10-24 02:55:43,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:55:43,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094269473] [2024-10-24 02:55:43,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:55:43,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:55:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:55:43,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:55:43,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:55:43,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094269473] [2024-10-24 02:55:43,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094269473] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:55:43,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:55:43,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:55:43,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887105386] [2024-10-24 02:55:43,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:55:43,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:55:43,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:55:43,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:55:43,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:55:43,233 INFO L87 Difference]: Start difference. First operand 5799 states and 8485 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:43,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:55:43,339 INFO L93 Difference]: Finished difference Result 11019 states and 16327 transitions. [2024-10-24 02:55:43,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:55:43,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-10-24 02:55:43,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:55:43,361 INFO L225 Difference]: With dead ends: 11019 [2024-10-24 02:55:43,361 INFO L226 Difference]: Without dead ends: 8281 [2024-10-24 02:55:43,367 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 [2024-10-24 02:55:43,368 INFO L432 NwaCegarLoop]: 1626 mSDtfsCounter, 1505 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1739 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 [2024-10-24 02:55:43,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1739 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:55:43,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8281 states. [2024-10-24 02:55:43,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8281 to 8279. [2024-10-24 02:55:43,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8279 states, 8277 states have (on average 1.463936208771294) internal successors, (12117), 8278 states have internal predecessors, (12117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:43,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8279 states to 8279 states and 12117 transitions. [2024-10-24 02:55:43,550 INFO L78 Accepts]: Start accepts. Automaton has 8279 states and 12117 transitions. Word has length 78 [2024-10-24 02:55:43,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:55:43,551 INFO L471 AbstractCegarLoop]: Abstraction has 8279 states and 12117 transitions. [2024-10-24 02:55:43,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:43,552 INFO L276 IsEmpty]: Start isEmpty. Operand 8279 states and 12117 transitions. [2024-10-24 02:55:43,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 02:55:43,552 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:55:43,552 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:55:43,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 02:55:43,553 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:55:43,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:55:43,553 INFO L85 PathProgramCache]: Analyzing trace with hash -589806880, now seen corresponding path program 1 times [2024-10-24 02:55:43,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:55:43,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109204356] [2024-10-24 02:55:43,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:55:43,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:55:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:55:43,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:55:43,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:55:43,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109204356] [2024-10-24 02:55:43,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109204356] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:55:43,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:55:43,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:55:43,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323368754] [2024-10-24 02:55:43,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:55:43,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:55:43,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:55:43,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:55:43,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:55:43,625 INFO L87 Difference]: Start difference. First operand 8279 states and 12117 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:43,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:55:43,789 INFO L93 Difference]: Finished difference Result 18203 states and 26775 transitions. [2024-10-24 02:55:43,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:55:43,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-10-24 02:55:43,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:55:43,818 INFO L225 Difference]: With dead ends: 18203 [2024-10-24 02:55:43,818 INFO L226 Difference]: Without dead ends: 12985 [2024-10-24 02:55:43,829 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 [2024-10-24 02:55:43,830 INFO L432 NwaCegarLoop]: 1640 mSDtfsCounter, 1511 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1741 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 [2024-10-24 02:55:43,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1741 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:55:43,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12985 states. [2024-10-24 02:55:44,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12985 to 12983. [2024-10-24 02:55:44,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12983 states, 12981 states have (on average 1.4535860103227793) internal successors, (18869), 12982 states have internal predecessors, (18869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:44,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12983 states to 12983 states and 18869 transitions. [2024-10-24 02:55:44,227 INFO L78 Accepts]: Start accepts. Automaton has 12983 states and 18869 transitions. Word has length 78 [2024-10-24 02:55:44,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:55:44,228 INFO L471 AbstractCegarLoop]: Abstraction has 12983 states and 18869 transitions. [2024-10-24 02:55:44,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:44,228 INFO L276 IsEmpty]: Start isEmpty. Operand 12983 states and 18869 transitions. [2024-10-24 02:55:44,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-24 02:55:44,229 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:55:44,229 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:55:44,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 02:55:44,230 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:55:44,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:55:44,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1500697979, now seen corresponding path program 1 times [2024-10-24 02:55:44,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:55:44,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128210604] [2024-10-24 02:55:44,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:55:44,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:55:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:55:44,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:55:44,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:55:44,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128210604] [2024-10-24 02:55:44,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128210604] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:55:44,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:55:44,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:55:44,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690121363] [2024-10-24 02:55:44,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:55:44,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:55:44,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:55:44,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:55:44,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:55:44,296 INFO L87 Difference]: Start difference. First operand 12983 states and 18869 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:44,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:55:44,518 INFO L93 Difference]: Finished difference Result 23230 states and 34107 transitions. [2024-10-24 02:55:44,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:55:44,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-10-24 02:55:44,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:55:44,554 INFO L225 Difference]: With dead ends: 23230 [2024-10-24 02:55:44,555 INFO L226 Difference]: Without dead ends: 17723 [2024-10-24 02:55:44,569 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 [2024-10-24 02:55:44,569 INFO L432 NwaCegarLoop]: 1649 mSDtfsCounter, 1514 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1738 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 [2024-10-24 02:55:44,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1738 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:55:44,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17723 states. [2024-10-24 02:55:45,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17723 to 17721. [2024-10-24 02:55:45,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17721 states, 17719 states have (on average 1.4514927478977369) internal successors, (25719), 17720 states have internal predecessors, (25719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:45,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17721 states to 17721 states and 25719 transitions. [2024-10-24 02:55:45,152 INFO L78 Accepts]: Start accepts. Automaton has 17721 states and 25719 transitions. Word has length 80 [2024-10-24 02:55:45,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:55:45,153 INFO L471 AbstractCegarLoop]: Abstraction has 17721 states and 25719 transitions. [2024-10-24 02:55:45,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:45,153 INFO L276 IsEmpty]: Start isEmpty. Operand 17721 states and 25719 transitions. [2024-10-24 02:55:45,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 02:55:45,154 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:55:45,155 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:55:45,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 02:55:45,155 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:55:45,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:55:45,156 INFO L85 PathProgramCache]: Analyzing trace with hash -2007488945, now seen corresponding path program 1 times [2024-10-24 02:55:45,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:55:45,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583537747] [2024-10-24 02:55:45,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:55:45,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:55:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:55:45,250 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:55:45,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:55:45,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583537747] [2024-10-24 02:55:45,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583537747] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:55:45,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:55:45,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 02:55:45,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095215684] [2024-10-24 02:55:45,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:55:45,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:55:45,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:55:45,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:55:45,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:55:45,252 INFO L87 Difference]: Start difference. First operand 17721 states and 25719 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:48,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:55:48,171 INFO L93 Difference]: Finished difference Result 23733 states and 34287 transitions. [2024-10-24 02:55:48,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:55:48,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-10-24 02:55:48,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:55:48,215 INFO L225 Difference]: With dead ends: 23733 [2024-10-24 02:55:48,215 INFO L226 Difference]: Without dead ends: 20727 [2024-10-24 02:55:48,230 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 [2024-10-24 02:55:48,230 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 1059 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 2933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:55:48,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 723 Invalid, 2933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-24 02:55:48,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20727 states. [2024-10-24 02:55:48,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20727 to 20725. [2024-10-24 02:55:48,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20725 states, 20723 states have (on average 1.41967861796072) internal successors, (29420), 20724 states have internal predecessors, (29420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:48,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20725 states to 20725 states and 29420 transitions. [2024-10-24 02:55:48,747 INFO L78 Accepts]: Start accepts. Automaton has 20725 states and 29420 transitions. Word has length 81 [2024-10-24 02:55:48,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:55:48,747 INFO L471 AbstractCegarLoop]: Abstraction has 20725 states and 29420 transitions. [2024-10-24 02:55:48,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:48,748 INFO L276 IsEmpty]: Start isEmpty. Operand 20725 states and 29420 transitions. [2024-10-24 02:55:48,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 02:55:48,752 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:55:48,752 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:55:48,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 02:55:48,752 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:55:48,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:55:48,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1592155180, now seen corresponding path program 1 times [2024-10-24 02:55:48,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:55:48,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793728227] [2024-10-24 02:55:48,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:55:48,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:55:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:55:48,999 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 02:55:49,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:55:49,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793728227] [2024-10-24 02:55:49,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793728227] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:55:49,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:55:49,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 02:55:49,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192600626] [2024-10-24 02:55:49,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:55:49,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 02:55:49,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:55:49,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 02:55:49,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 02:55:49,002 INFO L87 Difference]: Start difference. First operand 20725 states and 29420 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:50,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:55:50,607 INFO L93 Difference]: Finished difference Result 126277 states and 183220 transitions. [2024-10-24 02:55:50,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 02:55:50,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 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 100 [2024-10-24 02:55:50,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:55:50,833 INFO L225 Difference]: With dead ends: 126277 [2024-10-24 02:55:50,833 INFO L226 Difference]: Without dead ends: 111619 [2024-10-24 02:55:50,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-24 02:55:50,873 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 9880 mSDsluCounter, 2739 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9880 SdHoareTripleChecker+Valid, 4406 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:55:50,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9880 Valid, 4406 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 02:55:50,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111619 states. [2024-10-24 02:55:52,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111619 to 35381. [2024-10-24 02:55:52,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35381 states, 35379 states have (on average 1.4303400322225048) internal successors, (50604), 35380 states have internal predecessors, (50604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:52,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35381 states to 35381 states and 50604 transitions. [2024-10-24 02:55:52,517 INFO L78 Accepts]: Start accepts. Automaton has 35381 states and 50604 transitions. Word has length 100 [2024-10-24 02:55:52,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:55:52,519 INFO L471 AbstractCegarLoop]: Abstraction has 35381 states and 50604 transitions. [2024-10-24 02:55:52,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:52,520 INFO L276 IsEmpty]: Start isEmpty. Operand 35381 states and 50604 transitions. [2024-10-24 02:55:52,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 02:55:52,531 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:55:52,531 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:55:52,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 02:55:52,532 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:55:52,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:55:52,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1181768492, now seen corresponding path program 1 times [2024-10-24 02:55:52,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:55:52,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436668673] [2024-10-24 02:55:52,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:55:52,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:55:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:55:52,847 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-24 02:55:52,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:55:52,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436668673] [2024-10-24 02:55:52,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436668673] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:55:52,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:55:52,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 02:55:52,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120393198] [2024-10-24 02:55:52,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:55:52,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 02:55:52,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:55:52,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 02:55:52,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 02:55:52,851 INFO L87 Difference]: Start difference. First operand 35381 states and 50604 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:55,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:55:55,176 INFO L93 Difference]: Finished difference Result 140933 states and 204404 transitions. [2024-10-24 02:55:55,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 02:55:55,177 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 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 100 [2024-10-24 02:55:55,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:55:55,366 INFO L225 Difference]: With dead ends: 140933 [2024-10-24 02:55:55,367 INFO L226 Difference]: Without dead ends: 126275 [2024-10-24 02:55:55,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-24 02:55:55,412 INFO L432 NwaCegarLoop]: 1664 mSDtfsCounter, 9924 mSDsluCounter, 2610 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9924 SdHoareTripleChecker+Valid, 4274 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:55:55,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9924 Valid, 4274 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 02:55:55,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126275 states. [2024-10-24 02:55:57,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126275 to 57397. [2024-10-24 02:55:57,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57397 states, 57395 states have (on average 1.4325289659377995) internal successors, (82220), 57396 states have internal predecessors, (82220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:57,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57397 states to 57397 states and 82220 transitions. [2024-10-24 02:55:57,682 INFO L78 Accepts]: Start accepts. Automaton has 57397 states and 82220 transitions. Word has length 100 [2024-10-24 02:55:57,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:55:57,682 INFO L471 AbstractCegarLoop]: Abstraction has 57397 states and 82220 transitions. [2024-10-24 02:55:57,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:55:57,682 INFO L276 IsEmpty]: Start isEmpty. Operand 57397 states and 82220 transitions. [2024-10-24 02:55:57,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 02:55:57,688 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:55:57,688 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:55:57,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 02:55:57,689 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:55:57,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:55:57,689 INFO L85 PathProgramCache]: Analyzing trace with hash 953129260, now seen corresponding path program 1 times [2024-10-24 02:55:57,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:55:57,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147461602] [2024-10-24 02:55:57,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:55:57,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:55:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:55:57,933 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 02:55:57,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:55:57,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147461602] [2024-10-24 02:55:57,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147461602] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:55:57,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:55:57,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 02:55:57,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50723979] [2024-10-24 02:55:57,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:55:57,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 02:55:57,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:55:57,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 02:55:57,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 02:55:57,936 INFO L87 Difference]: Start difference. First operand 57397 states and 82220 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:56:01,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:56:01,096 INFO L93 Difference]: Finished difference Result 155589 states and 225588 transitions. [2024-10-24 02:56:01,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 02:56:01,097 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 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 100 [2024-10-24 02:56:01,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:56:01,324 INFO L225 Difference]: With dead ends: 155589 [2024-10-24 02:56:01,324 INFO L226 Difference]: Without dead ends: 140931 [2024-10-24 02:56:01,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-24 02:56:01,368 INFO L432 NwaCegarLoop]: 1661 mSDtfsCounter, 9999 mSDsluCounter, 2589 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9999 SdHoareTripleChecker+Valid, 4250 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:56:01,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9999 Valid, 4250 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 02:56:01,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140931 states. [2024-10-24 02:56:03,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140931 to 72053. [2024-10-24 02:56:04,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72053 states, 72051 states have (on average 1.4351501020110755) internal successors, (103404), 72052 states have internal predecessors, (103404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:56:04,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72053 states to 72053 states and 103404 transitions. [2024-10-24 02:56:04,125 INFO L78 Accepts]: Start accepts. Automaton has 72053 states and 103404 transitions. Word has length 100 [2024-10-24 02:56:04,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:56:04,126 INFO L471 AbstractCegarLoop]: Abstraction has 72053 states and 103404 transitions. [2024-10-24 02:56:04,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:56:04,126 INFO L276 IsEmpty]: Start isEmpty. Operand 72053 states and 103404 transitions. [2024-10-24 02:56:04,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 02:56:04,132 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:56:04,132 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:56:04,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 02:56:04,132 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:56:04,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:56:04,133 INFO L85 PathProgramCache]: Analyzing trace with hash 327473196, now seen corresponding path program 1 times [2024-10-24 02:56:04,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:56:04,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745327350] [2024-10-24 02:56:04,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:56:04,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:56:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:56:04,357 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 02:56:04,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:56:04,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745327350] [2024-10-24 02:56:04,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745327350] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:56:04,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:56:04,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 02:56:04,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861212312] [2024-10-24 02:56:04,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:56:04,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 02:56:04,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:56:04,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 02:56:04,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 02:56:04,360 INFO L87 Difference]: Start difference. First operand 72053 states and 103404 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:56:07,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:56:07,682 INFO L93 Difference]: Finished difference Result 170245 states and 246772 transitions. [2024-10-24 02:56:07,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 02:56:07,683 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 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 100 [2024-10-24 02:56:07,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:56:07,924 INFO L225 Difference]: With dead ends: 170245 [2024-10-24 02:56:07,924 INFO L226 Difference]: Without dead ends: 155587 [2024-10-24 02:56:07,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-24 02:56:07,976 INFO L432 NwaCegarLoop]: 1658 mSDtfsCounter, 10065 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10065 SdHoareTripleChecker+Valid, 4214 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:56:07,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10065 Valid, 4214 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 02:56:08,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155587 states. [2024-10-24 02:56:10,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155587 to 86709. [2024-10-24 02:56:10,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86709 states, 86707 states have (on average 1.4368851419147244) internal successors, (124588), 86708 states have internal predecessors, (124588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:56:11,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86709 states to 86709 states and 124588 transitions. [2024-10-24 02:56:11,134 INFO L78 Accepts]: Start accepts. Automaton has 86709 states and 124588 transitions. Word has length 100 [2024-10-24 02:56:11,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:56:11,134 INFO L471 AbstractCegarLoop]: Abstraction has 86709 states and 124588 transitions. [2024-10-24 02:56:11,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:56:11,134 INFO L276 IsEmpty]: Start isEmpty. Operand 86709 states and 124588 transitions. [2024-10-24 02:56:11,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 02:56:11,149 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:56:11,149 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:56:11,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 02:56:11,151 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:56:11,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:56:11,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1216206636, now seen corresponding path program 1 times [2024-10-24 02:56:11,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:56:11,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531744686] [2024-10-24 02:56:11,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:56:11,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:56:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:56:11,360 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-24 02:56:11,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:56:11,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531744686] [2024-10-24 02:56:11,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531744686] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:56:11,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:56:11,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 02:56:11,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881641140] [2024-10-24 02:56:11,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:56:11,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 02:56:11,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:56:11,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 02:56:11,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 02:56:11,364 INFO L87 Difference]: Start difference. First operand 86709 states and 124588 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:56:14,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:56:14,959 INFO L93 Difference]: Finished difference Result 184901 states and 267956 transitions. [2024-10-24 02:56:14,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 02:56:14,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 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 100 [2024-10-24 02:56:14,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:56:15,250 INFO L225 Difference]: With dead ends: 184901 [2024-10-24 02:56:15,250 INFO L226 Difference]: Without dead ends: 170243 [2024-10-24 02:56:15,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-24 02:56:15,293 INFO L432 NwaCegarLoop]: 1661 mSDtfsCounter, 9915 mSDsluCounter, 2660 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9915 SdHoareTripleChecker+Valid, 4321 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:56:15,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9915 Valid, 4321 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 02:56:15,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170243 states. [2024-10-24 02:56:18,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170243 to 101365. [2024-10-24 02:56:18,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101365 states, 101363 states have (on average 1.4381184455866538) internal successors, (145772), 101364 states have internal predecessors, (145772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:56:18,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101365 states to 101365 states and 145772 transitions. [2024-10-24 02:56:18,843 INFO L78 Accepts]: Start accepts. Automaton has 101365 states and 145772 transitions. Word has length 100 [2024-10-24 02:56:18,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:56:18,844 INFO L471 AbstractCegarLoop]: Abstraction has 101365 states and 145772 transitions. [2024-10-24 02:56:18,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:56:18,844 INFO L276 IsEmpty]: Start isEmpty. Operand 101365 states and 145772 transitions. [2024-10-24 02:56:18,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 02:56:18,850 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:56:18,850 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:56:18,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 02:56:18,850 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:56:18,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:56:18,851 INFO L85 PathProgramCache]: Analyzing trace with hash 913185324, now seen corresponding path program 1 times [2024-10-24 02:56:18,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:56:18,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384280444] [2024-10-24 02:56:18,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:56:18,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:56:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:56:19,078 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-24 02:56:19,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:56:19,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384280444] [2024-10-24 02:56:19,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384280444] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:56:19,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:56:19,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 02:56:19,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086732433] [2024-10-24 02:56:19,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:56:19,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 02:56:19,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:56:19,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 02:56:19,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 02:56:19,082 INFO L87 Difference]: Start difference. First operand 101365 states and 145772 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)