./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.7.1.ufo.UNBOUNDED.pals+Problem12_label09.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.7.1.ufo.UNBOUNDED.pals+Problem12_label09.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 c2b92f7b268935cb0637cec19294e5d3b9c96e09bf4c6f56efedf9d49b1a49f7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 02:54:11,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 02:54:11,146 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 02:54:11,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 02:54:11,151 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 02:54:11,168 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 02:54:11,168 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 02:54:11,169 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 02:54:11,169 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 02:54:11,169 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 02:54:11,170 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 02:54:11,170 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 02:54:11,170 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 02:54:11,170 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 02:54:11,171 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 02:54:11,171 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 02:54:11,171 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 02:54:11,172 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 02:54:11,172 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 02:54:11,174 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 02:54:11,174 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 02:54:11,174 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 02:54:11,175 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 02:54:11,175 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 02:54:11,177 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 02:54:11,178 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 02:54:11,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 02:54:11,178 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 02:54:11,178 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 02:54:11,178 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 02:54:11,179 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 02:54:11,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 02:54:11,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:54:11,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 02:54:11,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 02:54:11,179 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 02:54:11,179 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 02:54:11,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 02:54:11,180 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 02:54:11,180 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 02:54:11,180 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 02:54:11,180 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 02:54:11,181 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2b92f7b268935cb0637cec19294e5d3b9c96e09bf4c6f56efedf9d49b1a49f7 [2024-10-24 02:54:11,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 02:54:11,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 02:54:11,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 02:54:11,409 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 02:54:11,409 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 02:54:11,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-10-24 02:54:12,626 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 02:54:12,988 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 02:54:12,989 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-10-24 02:54:13,009 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3969329aa/9035917a88a44b72885f21c53f7d07d8/FLAG4d6573704 [2024-10-24 02:54:13,022 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3969329aa/9035917a88a44b72885f21c53f7d07d8 [2024-10-24 02:54:13,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 02:54:13,026 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 02:54:13,028 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 02:54:13,028 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 02:54:13,032 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 02:54:13,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:54:13" (1/1) ... [2024-10-24 02:54:13,034 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@621c9138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:13, skipping insertion in model container [2024-10-24 02:54:13,035 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:54:13" (1/1) ... [2024-10-24 02:54:13,112 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 02:54:13,379 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.7.1.ufo.UNBOUNDED.pals+Problem12_label09.c[20491,20504] [2024-10-24 02:54:13,437 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.7.1.ufo.UNBOUNDED.pals+Problem12_label09.c[28239,28252] [2024-10-24 02:54:13,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:54:13,912 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 02:54:13,934 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.7.1.ufo.UNBOUNDED.pals+Problem12_label09.c[20491,20504] [2024-10-24 02:54:13,943 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.7.1.ufo.UNBOUNDED.pals+Problem12_label09.c[28239,28252] [2024-10-24 02:54:14,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:54:14,304 INFO L204 MainTranslator]: Completed translation [2024-10-24 02:54:14,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:14 WrapperNode [2024-10-24 02:54:14,305 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 02:54:14,305 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 02:54:14,306 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 02:54:14,306 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 02:54:14,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:14" (1/1) ... [2024-10-24 02:54:14,350 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:14" (1/1) ... [2024-10-24 02:54:14,616 INFO L138 Inliner]: procedures = 39, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5220 [2024-10-24 02:54:14,617 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 02:54:14,618 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 02:54:14,618 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 02:54:14,618 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 02:54:14,627 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:14" (1/1) ... [2024-10-24 02:54:14,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:14" (1/1) ... [2024-10-24 02:54:14,713 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:14" (1/1) ... [2024-10-24 02:54:14,811 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 02:54:14,811 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:14" (1/1) ... [2024-10-24 02:54:14,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:14" (1/1) ... [2024-10-24 02:54:14,916 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:14" (1/1) ... [2024-10-24 02:54:14,940 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:14" (1/1) ... [2024-10-24 02:54:14,994 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:14" (1/1) ... [2024-10-24 02:54:15,011 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:14" (1/1) ... [2024-10-24 02:54:15,047 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 02:54:15,052 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 02:54:15,052 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 02:54:15,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 02:54:15,053 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:14" (1/1) ... [2024-10-24 02:54:15,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:54:15,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:54:15,079 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 02:54:15,081 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 02:54:15,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 02:54:15,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 02:54:15,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 02:54:15,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 02:54:15,221 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 02:54:15,223 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 02:54:18,394 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2024-10-24 02:54:18,394 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 02:54:18,452 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 02:54:18,452 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-24 02:54:18,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:54:18 BoogieIcfgContainer [2024-10-24 02:54:18,452 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 02:54:18,454 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 02:54:18,454 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 02:54:18,457 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 02:54:18,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:54:13" (1/3) ... [2024-10-24 02:54:18,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac28031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:54:18, skipping insertion in model container [2024-10-24 02:54:18,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:14" (2/3) ... [2024-10-24 02:54:18,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac28031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:54:18, skipping insertion in model container [2024-10-24 02:54:18,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:54:18" (3/3) ... [2024-10-24 02:54:18,459 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-10-24 02:54:18,472 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 02:54:18,472 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 02:54:18,540 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 02:54:18,545 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;@793acaae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 02:54:18,545 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 02:54:18,553 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 02:54:18,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-24 02:54:18,560 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:18,561 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 02:54:18,562 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:18,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:18,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1824033041, now seen corresponding path program 1 times [2024-10-24 02:54:18,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:18,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48116628] [2024-10-24 02:54:18,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:18,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:18,786 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 02:54:18,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:18,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48116628] [2024-10-24 02:54:18,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48116628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:18,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:18,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 02:54:18,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254232259] [2024-10-24 02:54:18,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:18,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 02:54:18,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:18,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 02:54:18,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 02:54:18,818 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 2 states, 2 states have (on average 12.5) internal successors, (25), 2 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 02:54:18,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:18,900 INFO L93 Difference]: Finished difference Result 1679 states and 3299 transitions. [2024-10-24 02:54:18,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 02:54:18,902 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 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 02:54:18,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:18,915 INFO L225 Difference]: With dead ends: 1679 [2024-10-24 02:54:18,919 INFO L226 Difference]: Without dead ends: 863 [2024-10-24 02:54:18,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 02:54:18,925 INFO L432 NwaCegarLoop]: 1631 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:54:18,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1631 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:54:18,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2024-10-24 02:54:18,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 863. [2024-10-24 02:54:18,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 861 states have (on average 1.8954703832752613) internal successors, (1632), 862 states have internal predecessors, (1632), 0 states have call successors, (0), 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 02:54:18,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1632 transitions. [2024-10-24 02:54:18,997 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1632 transitions. Word has length 25 [2024-10-24 02:54:18,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:54:18,997 INFO L471 AbstractCegarLoop]: Abstraction has 863 states and 1632 transitions. [2024-10-24 02:54:18,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 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 02:54:18,998 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1632 transitions. [2024-10-24 02:54:18,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-24 02:54:18,999 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:18,999 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 02:54:18,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 02:54:19,000 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:19,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:19,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1401331215, now seen corresponding path program 1 times [2024-10-24 02:54:19,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:19,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577390586] [2024-10-24 02:54:19,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:19,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:19,180 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 02:54:19,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:19,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577390586] [2024-10-24 02:54:19,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577390586] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:19,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:19,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 02:54:19,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633577130] [2024-10-24 02:54:19,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:19,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 02:54:19,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:19,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 02:54:19,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 02:54:19,187 INFO L87 Difference]: Start difference. First operand 863 states and 1632 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 02:54:19,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:19,305 INFO L93 Difference]: Finished difference Result 921 states and 1724 transitions. [2024-10-24 02:54:19,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 02:54:19,306 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 02:54:19,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:19,310 INFO L225 Difference]: With dead ends: 921 [2024-10-24 02:54:19,311 INFO L226 Difference]: Without dead ends: 863 [2024-10-24 02:54:19,311 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 02:54:19,312 INFO L432 NwaCegarLoop]: 1629 mSDtfsCounter, 0 mSDsluCounter, 3204 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 02:54:19,313 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 02:54:19,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2024-10-24 02:54:19,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 863. [2024-10-24 02:54:19,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 861 states have (on average 1.8373983739837398) internal successors, (1582), 862 states have internal predecessors, (1582), 0 states have call successors, (0), 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 02:54:19,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1582 transitions. [2024-10-24 02:54:19,330 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1582 transitions. Word has length 25 [2024-10-24 02:54:19,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:54:19,330 INFO L471 AbstractCegarLoop]: Abstraction has 863 states and 1582 transitions. [2024-10-24 02:54:19,330 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 02:54:19,331 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1582 transitions. [2024-10-24 02:54:19,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-24 02:54:19,332 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:19,332 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] [2024-10-24 02:54:19,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 02:54:19,333 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:19,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:19,333 INFO L85 PathProgramCache]: Analyzing trace with hash -305398645, now seen corresponding path program 1 times [2024-10-24 02:54:19,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:19,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489885883] [2024-10-24 02:54:19,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:19,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:19,468 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 02:54:19,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:19,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489885883] [2024-10-24 02:54:19,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489885883] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:19,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:19,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 02:54:19,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302066286] [2024-10-24 02:54:19,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:19,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:54:19,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:19,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:54:19,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:54:19,473 INFO L87 Difference]: Start difference. First operand 863 states and 1582 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:54:22,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:22,226 INFO L93 Difference]: Finished difference Result 2367 states and 4455 transitions. [2024-10-24 02:54:22,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:54:22,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-24 02:54:22,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:22,233 INFO L225 Difference]: With dead ends: 2367 [2024-10-24 02:54:22,233 INFO L226 Difference]: Without dead ends: 1614 [2024-10-24 02:54:22,234 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 02:54:22,235 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 878 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 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, 2.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:54:22,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 615 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-24 02:54:22,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2024-10-24 02:54:22,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1614. [2024-10-24 02:54:22,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1612 states have (on average 1.5887096774193548) internal successors, (2561), 1613 states have internal predecessors, (2561), 0 states have call successors, (0), 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 02:54:22,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 2561 transitions. [2024-10-24 02:54:22,260 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 2561 transitions. Word has length 66 [2024-10-24 02:54:22,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:54:22,260 INFO L471 AbstractCegarLoop]: Abstraction has 1614 states and 2561 transitions. [2024-10-24 02:54:22,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:54:22,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 2561 transitions. [2024-10-24 02:54:22,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-24 02:54:22,262 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:22,262 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 02:54:22,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 02:54:22,263 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:22,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:22,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1958226728, now seen corresponding path program 1 times [2024-10-24 02:54:22,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:22,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012820310] [2024-10-24 02:54:22,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:22,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:22,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:22,445 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 02:54:22,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:22,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012820310] [2024-10-24 02:54:22,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012820310] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:22,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:22,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 02:54:22,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104227030] [2024-10-24 02:54:22,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:22,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 02:54:22,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:22,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 02:54:22,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 02:54:22,447 INFO L87 Difference]: Start difference. First operand 1614 states and 2561 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 02:54:22,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:22,772 INFO L93 Difference]: Finished difference Result 2384 states and 3807 transitions. [2024-10-24 02:54:22,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:54:22,773 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 02:54:22,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:22,783 INFO L225 Difference]: With dead ends: 2384 [2024-10-24 02:54:22,783 INFO L226 Difference]: Without dead ends: 2329 [2024-10-24 02:54:22,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-10-24 02:54:22,787 INFO L432 NwaCegarLoop]: 1573 mSDtfsCounter, 11585 mSDsluCounter, 2680 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:54:22,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11585 Valid, 4253 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 02:54:22,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2024-10-24 02:54:22,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 1667. [2024-10-24 02:54:22,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1665 states have (on average 1.5897897897897897) internal successors, (2647), 1666 states have internal predecessors, (2647), 0 states have call successors, (0), 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 02:54:22,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2647 transitions. [2024-10-24 02:54:22,818 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2647 transitions. Word has length 74 [2024-10-24 02:54:22,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:54:22,819 INFO L471 AbstractCegarLoop]: Abstraction has 1667 states and 2647 transitions. [2024-10-24 02:54:22,819 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 02:54:22,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2647 transitions. [2024-10-24 02:54:22,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 02:54:22,820 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:22,821 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 02:54:22,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 02:54:22,821 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:22,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:22,821 INFO L85 PathProgramCache]: Analyzing trace with hash -783812792, now seen corresponding path program 1 times [2024-10-24 02:54:22,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:22,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869527158] [2024-10-24 02:54:22,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:22,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:22,906 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 02:54:22,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:22,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869527158] [2024-10-24 02:54:22,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869527158] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:22,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:22,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:54:22,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416737060] [2024-10-24 02:54:22,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:22,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:54:22,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:22,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:54:22,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:54:22,908 INFO L87 Difference]: Start difference. First operand 1667 states and 2647 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 02:54:22,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:22,946 INFO L93 Difference]: Finished difference Result 1872 states and 2978 transitions. [2024-10-24 02:54:22,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:54:22,947 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 02:54:22,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:22,953 INFO L225 Difference]: With dead ends: 1872 [2024-10-24 02:54:22,953 INFO L226 Difference]: Without dead ends: 1764 [2024-10-24 02:54:22,954 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 02:54:22,955 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 02:54:22,955 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 02:54:22,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-10-24 02:54:22,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1760. [2024-10-24 02:54:22,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1758 states have (on average 1.5898748577929465) internal successors, (2795), 1759 states have internal predecessors, (2795), 0 states have call successors, (0), 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 02:54:22,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2795 transitions. [2024-10-24 02:54:22,983 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2795 transitions. Word has length 76 [2024-10-24 02:54:22,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:54:22,984 INFO L471 AbstractCegarLoop]: Abstraction has 1760 states and 2795 transitions. [2024-10-24 02:54:22,984 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 02:54:22,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2795 transitions. [2024-10-24 02:54:22,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 02:54:22,985 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:22,985 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 02:54:22,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 02:54:22,985 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:22,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:22,986 INFO L85 PathProgramCache]: Analyzing trace with hash -781667840, now seen corresponding path program 1 times [2024-10-24 02:54:22,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:22,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261053566] [2024-10-24 02:54:22,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:22,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:23,320 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 02:54:23,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:23,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261053566] [2024-10-24 02:54:23,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261053566] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:23,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:23,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 02:54:23,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119591902] [2024-10-24 02:54:23,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:23,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 02:54:23,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:23,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 02:54:23,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-24 02:54:23,322 INFO L87 Difference]: Start difference. First operand 1760 states and 2795 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 02:54:23,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:23,609 INFO L93 Difference]: Finished difference Result 1963 states and 3119 transitions. [2024-10-24 02:54:23,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 02:54:23,610 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 02:54:23,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:23,615 INFO L225 Difference]: With dead ends: 1963 [2024-10-24 02:54:23,615 INFO L226 Difference]: Without dead ends: 1762 [2024-10-24 02:54:23,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-10-24 02:54:23,616 INFO L432 NwaCegarLoop]: 1571 mSDtfsCounter, 7560 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7560 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:54:23,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7560 Valid, 2084 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 02:54:23,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2024-10-24 02:54:23,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1760. [2024-10-24 02:54:23,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1758 states have (on average 1.5887372013651877) internal successors, (2793), 1759 states have internal predecessors, (2793), 0 states have call successors, (0), 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 02:54:23,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2793 transitions. [2024-10-24 02:54:23,646 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2793 transitions. Word has length 76 [2024-10-24 02:54:23,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:54:23,646 INFO L471 AbstractCegarLoop]: Abstraction has 1760 states and 2793 transitions. [2024-10-24 02:54:23,646 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 02:54:23,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2793 transitions. [2024-10-24 02:54:23,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 02:54:23,647 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:23,647 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 02:54:23,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 02:54:23,647 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:23,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:23,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1409717390, now seen corresponding path program 1 times [2024-10-24 02:54:23,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:23,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347752337] [2024-10-24 02:54:23,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:23,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:23,803 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 02:54:23,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:23,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347752337] [2024-10-24 02:54:23,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347752337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:23,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:23,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 02:54:23,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413905635] [2024-10-24 02:54:23,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:23,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 02:54:23,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:23,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 02:54:23,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 02:54:23,805 INFO L87 Difference]: Start difference. First operand 1760 states and 2793 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 02:54:23,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:23,838 INFO L93 Difference]: Finished difference Result 1766 states and 2800 transitions. [2024-10-24 02:54:23,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 02:54:23,839 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 02:54:23,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:23,845 INFO L225 Difference]: With dead ends: 1766 [2024-10-24 02:54:23,845 INFO L226 Difference]: Without dead ends: 1764 [2024-10-24 02:54:23,846 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 02:54:23,847 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 02:54:23,847 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 02:54:23,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-10-24 02:54:23,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1764. [2024-10-24 02:54:23,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1762 states have (on average 1.58683314415437) internal successors, (2796), 1763 states have internal predecessors, (2796), 0 states have call successors, (0), 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 02:54:23,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2796 transitions. [2024-10-24 02:54:23,877 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2796 transitions. Word has length 77 [2024-10-24 02:54:23,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:54:23,877 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 2796 transitions. [2024-10-24 02:54:23,877 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 02:54:23,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2796 transitions. [2024-10-24 02:54:23,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 02:54:23,879 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:23,879 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 02:54:23,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 02:54:23,881 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:23,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:23,881 INFO L85 PathProgramCache]: Analyzing trace with hash 89162976, now seen corresponding path program 1 times [2024-10-24 02:54:23,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:23,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059911883] [2024-10-24 02:54:23,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:23,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:23,932 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 02:54:23,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:23,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059911883] [2024-10-24 02:54:23,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059911883] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:23,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:23,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:54:23,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637108373] [2024-10-24 02:54:23,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:23,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:54:23,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:23,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:54:23,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:54:23,935 INFO L87 Difference]: Start difference. First operand 1764 states and 2796 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 02:54:23,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:23,961 INFO L93 Difference]: Finished difference Result 2158 states and 3416 transitions. [2024-10-24 02:54:23,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:54:23,962 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 02:54:23,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:23,967 INFO L225 Difference]: With dead ends: 2158 [2024-10-24 02:54:23,967 INFO L226 Difference]: Without dead ends: 1953 [2024-10-24 02:54:23,967 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 02:54:23,968 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 02:54:23,968 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 02:54:23,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2024-10-24 02:54:23,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1951. [2024-10-24 02:54:23,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1951 states, 1949 states have (on average 1.5838891739353516) internal successors, (3087), 1950 states have internal predecessors, (3087), 0 states have call successors, (0), 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 02:54:23,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 3087 transitions. [2024-10-24 02:54:23,996 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 3087 transitions. Word has length 78 [2024-10-24 02:54:23,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:54:23,996 INFO L471 AbstractCegarLoop]: Abstraction has 1951 states and 3087 transitions. [2024-10-24 02:54:23,997 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 02:54:23,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 3087 transitions. [2024-10-24 02:54:23,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 02:54:23,997 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:23,997 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:54:23,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 02:54:23,998 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:23,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:23,998 INFO L85 PathProgramCache]: Analyzing trace with hash -321223712, now seen corresponding path program 1 times [2024-10-24 02:54:23,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:23,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863664741] [2024-10-24 02:54:23,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:23,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:24,041 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 02:54:24,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:24,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863664741] [2024-10-24 02:54:24,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863664741] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:24,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:24,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:54:24,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319004880] [2024-10-24 02:54:24,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:24,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:54:24,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:24,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:54:24,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:54:24,043 INFO L87 Difference]: Start difference. First operand 1951 states and 3087 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 02:54:24,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:24,081 INFO L93 Difference]: Finished difference Result 2703 states and 4261 transitions. [2024-10-24 02:54:24,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:54:24,081 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 02:54:24,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:24,088 INFO L225 Difference]: With dead ends: 2703 [2024-10-24 02:54:24,088 INFO L226 Difference]: Without dead ends: 2311 [2024-10-24 02:54:24,089 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 02:54:24,090 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 02:54:24,090 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 02:54:24,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2024-10-24 02:54:24,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 2309. [2024-10-24 02:54:24,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2309 states, 2307 states have (on average 1.576506285218899) internal successors, (3637), 2308 states have internal predecessors, (3637), 0 states have call successors, (0), 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 02:54:24,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 3637 transitions. [2024-10-24 02:54:24,133 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 3637 transitions. Word has length 78 [2024-10-24 02:54:24,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:54:24,133 INFO L471 AbstractCegarLoop]: Abstraction has 2309 states and 3637 transitions. [2024-10-24 02:54:24,133 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 02:54:24,133 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 3637 transitions. [2024-10-24 02:54:24,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 02:54:24,134 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:24,134 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 02:54:24,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 02:54:24,135 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:24,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:24,135 INFO L85 PathProgramCache]: Analyzing trace with hash -549862944, now seen corresponding path program 1 times [2024-10-24 02:54:24,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:24,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491575076] [2024-10-24 02:54:24,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:24,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:24,188 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 02:54:24,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:24,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491575076] [2024-10-24 02:54:24,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491575076] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:24,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:24,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:54:24,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810447025] [2024-10-24 02:54:24,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:24,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:54:24,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:24,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:54:24,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:54:24,190 INFO L87 Difference]: Start difference. First operand 2309 states and 3637 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 02:54:24,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:24,227 INFO L93 Difference]: Finished difference Result 3745 states and 5855 transitions. [2024-10-24 02:54:24,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:54:24,227 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 02:54:24,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:24,235 INFO L225 Difference]: With dead ends: 3745 [2024-10-24 02:54:24,235 INFO L226 Difference]: Without dead ends: 2995 [2024-10-24 02:54:24,236 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 02:54:24,237 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 02:54:24,238 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 02:54:24,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2024-10-24 02:54:24,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 2993. [2024-10-24 02:54:24,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2993 states, 2991 states have (on average 1.5623537278502173) internal successors, (4673), 2992 states have internal predecessors, (4673), 0 states have call successors, (0), 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 02:54:24,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2993 states to 2993 states and 4673 transitions. [2024-10-24 02:54:24,282 INFO L78 Accepts]: Start accepts. Automaton has 2993 states and 4673 transitions. Word has length 78 [2024-10-24 02:54:24,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:54:24,283 INFO L471 AbstractCegarLoop]: Abstraction has 2993 states and 4673 transitions. [2024-10-24 02:54:24,283 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 02:54:24,283 INFO L276 IsEmpty]: Start isEmpty. Operand 2993 states and 4673 transitions. [2024-10-24 02:54:24,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 02:54:24,283 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:24,284 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 02:54:24,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 02:54:24,284 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:24,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:24,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1175519008, now seen corresponding path program 1 times [2024-10-24 02:54:24,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:24,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272723592] [2024-10-24 02:54:24,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:24,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:24,335 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 02:54:24,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:24,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272723592] [2024-10-24 02:54:24,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272723592] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:24,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:24,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:54:24,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790838990] [2024-10-24 02:54:24,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:24,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:54:24,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:24,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:54:24,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:54:24,337 INFO L87 Difference]: Start difference. First operand 2993 states and 4673 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 02:54:24,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:24,386 INFO L93 Difference]: Finished difference Result 5733 states and 8851 transitions. [2024-10-24 02:54:24,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:54:24,387 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 02:54:24,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:24,399 INFO L225 Difference]: With dead ends: 5733 [2024-10-24 02:54:24,399 INFO L226 Difference]: Without dead ends: 4299 [2024-10-24 02:54:24,401 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 02:54:24,402 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 02:54:24,402 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 02:54:24,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4299 states. [2024-10-24 02:54:24,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4299 to 4297. [2024-10-24 02:54:24,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4297 states, 4295 states have (on average 1.5406286379511058) internal successors, (6617), 4296 states have internal predecessors, (6617), 0 states have call successors, (0), 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 02:54:24,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4297 states to 4297 states and 6617 transitions. [2024-10-24 02:54:24,481 INFO L78 Accepts]: Start accepts. Automaton has 4297 states and 6617 transitions. Word has length 78 [2024-10-24 02:54:24,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:54:24,482 INFO L471 AbstractCegarLoop]: Abstraction has 4297 states and 6617 transitions. [2024-10-24 02:54:24,482 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 02:54:24,482 INFO L276 IsEmpty]: Start isEmpty. Operand 4297 states and 6617 transitions. [2024-10-24 02:54:24,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 02:54:24,483 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:24,483 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 02:54:24,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 02:54:24,483 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:24,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:24,484 INFO L85 PathProgramCache]: Analyzing trace with hash -286785568, now seen corresponding path program 1 times [2024-10-24 02:54:24,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:24,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590649090] [2024-10-24 02:54:24,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:24,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:24,547 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 02:54:24,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:24,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590649090] [2024-10-24 02:54:24,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590649090] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:24,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:24,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:54:24,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699913846] [2024-10-24 02:54:24,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:24,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:54:24,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:24,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:54:24,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:54:24,549 INFO L87 Difference]: Start difference. First operand 4297 states and 6617 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 02:54:24,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:24,652 INFO L93 Difference]: Finished difference Result 9517 states and 14459 transitions. [2024-10-24 02:54:24,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:54:24,653 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 02:54:24,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:24,676 INFO L225 Difference]: With dead ends: 9517 [2024-10-24 02:54:24,677 INFO L226 Difference]: Without dead ends: 6779 [2024-10-24 02:54:24,680 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 02:54:24,681 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 02:54:24,681 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 02:54:24,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6779 states. [2024-10-24 02:54:24,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6779 to 6777. [2024-10-24 02:54:24,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6777 states, 6775 states have (on average 1.5127675276752768) internal successors, (10249), 6776 states have internal predecessors, (10249), 0 states have call successors, (0), 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 02:54:24,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6777 states to 6777 states and 10249 transitions. [2024-10-24 02:54:24,805 INFO L78 Accepts]: Start accepts. Automaton has 6777 states and 10249 transitions. Word has length 78 [2024-10-24 02:54:24,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:54:24,805 INFO L471 AbstractCegarLoop]: Abstraction has 6777 states and 10249 transitions. [2024-10-24 02:54:24,806 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 02:54:24,806 INFO L276 IsEmpty]: Start isEmpty. Operand 6777 states and 10249 transitions. [2024-10-24 02:54:24,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 02:54:24,806 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:24,806 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 02:54:24,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 02:54:24,806 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:24,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:24,807 INFO L85 PathProgramCache]: Analyzing trace with hash -589806880, now seen corresponding path program 1 times [2024-10-24 02:54:24,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:24,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822707719] [2024-10-24 02:54:24,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:24,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:24,848 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 02:54:24,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:24,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822707719] [2024-10-24 02:54:24,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822707719] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:24,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:24,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:54:24,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072413794] [2024-10-24 02:54:24,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:24,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:54:24,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:24,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:54:24,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:54:24,850 INFO L87 Difference]: Start difference. First operand 6777 states and 10249 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 02:54:24,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:24,958 INFO L93 Difference]: Finished difference Result 16701 states and 24907 transitions. [2024-10-24 02:54:24,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:54:24,958 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 02:54:24,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:24,974 INFO L225 Difference]: With dead ends: 16701 [2024-10-24 02:54:24,974 INFO L226 Difference]: Without dead ends: 11483 [2024-10-24 02:54:24,982 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 02:54:24,983 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 02:54:24,983 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 02:54:24,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11483 states. [2024-10-24 02:54:25,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11483 to 11481. [2024-10-24 02:54:25,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11481 states, 11479 states have (on average 1.481052356477045) internal successors, (17001), 11480 states have internal predecessors, (17001), 0 states have call successors, (0), 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 02:54:25,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11481 states to 11481 states and 17001 transitions. [2024-10-24 02:54:25,175 INFO L78 Accepts]: Start accepts. Automaton has 11481 states and 17001 transitions. Word has length 78 [2024-10-24 02:54:25,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:54:25,176 INFO L471 AbstractCegarLoop]: Abstraction has 11481 states and 17001 transitions. [2024-10-24 02:54:25,176 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 02:54:25,176 INFO L276 IsEmpty]: Start isEmpty. Operand 11481 states and 17001 transitions. [2024-10-24 02:54:25,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-24 02:54:25,177 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:25,177 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 02:54:25,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 02:54:25,177 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:25,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:25,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1500697979, now seen corresponding path program 1 times [2024-10-24 02:54:25,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:25,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724267506] [2024-10-24 02:54:25,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:25,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:25,217 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 02:54:25,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:25,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724267506] [2024-10-24 02:54:25,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724267506] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:25,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:25,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:54:25,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252379037] [2024-10-24 02:54:25,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:25,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:54:25,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:25,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:54:25,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:54:25,219 INFO L87 Difference]: Start difference. First operand 11481 states and 17001 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 02:54:25,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:25,477 INFO L93 Difference]: Finished difference Result 21728 states and 32239 transitions. [2024-10-24 02:54:25,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:54:25,481 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 02:54:25,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:25,507 INFO L225 Difference]: With dead ends: 21728 [2024-10-24 02:54:25,507 INFO L226 Difference]: Without dead ends: 16221 [2024-10-24 02:54:25,516 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 02:54:25,516 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 02:54:25,517 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 02:54:25,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16221 states. [2024-10-24 02:54:25,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16221 to 16219. [2024-10-24 02:54:25,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16219 states, 16217 states have (on average 1.4707405808719245) internal successors, (23851), 16218 states have internal predecessors, (23851), 0 states have call successors, (0), 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 02:54:25,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16219 states to 16219 states and 23851 transitions. [2024-10-24 02:54:25,923 INFO L78 Accepts]: Start accepts. Automaton has 16219 states and 23851 transitions. Word has length 80 [2024-10-24 02:54:25,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:54:25,924 INFO L471 AbstractCegarLoop]: Abstraction has 16219 states and 23851 transitions. [2024-10-24 02:54:25,924 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 02:54:25,924 INFO L276 IsEmpty]: Start isEmpty. Operand 16219 states and 23851 transitions. [2024-10-24 02:54:25,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 02:54:25,928 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:25,928 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 02:54:25,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 02:54:25,928 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:25,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:25,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1592155180, now seen corresponding path program 1 times [2024-10-24 02:54:25,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:25,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634110512] [2024-10-24 02:54:25,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:25,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:26,123 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 02:54:26,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:26,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634110512] [2024-10-24 02:54:26,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634110512] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:26,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:26,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 02:54:26,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189529118] [2024-10-24 02:54:26,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:26,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 02:54:26,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:26,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 02:54:26,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 02:54:26,125 INFO L87 Difference]: Start difference. First operand 16219 states and 23851 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 02:54:27,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:27,368 INFO L93 Difference]: Finished difference Result 121771 states and 177651 transitions. [2024-10-24 02:54:27,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 02:54:27,368 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 02:54:27,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:27,563 INFO L225 Difference]: With dead ends: 121771 [2024-10-24 02:54:27,563 INFO L226 Difference]: Without dead ends: 107113 [2024-10-24 02:54:27,592 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 02:54:27,593 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 9884 mSDsluCounter, 2706 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9884 SdHoareTripleChecker+Valid, 4373 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 02:54:27,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9884 Valid, 4373 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 02:54:27,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107113 states. [2024-10-24 02:54:28,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107113 to 30875. [2024-10-24 02:54:28,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30875 states, 30873 states have (on average 1.4587179736339195) internal successors, (45035), 30874 states have internal predecessors, (45035), 0 states have call successors, (0), 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 02:54:28,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30875 states to 30875 states and 45035 transitions. [2024-10-24 02:54:28,686 INFO L78 Accepts]: Start accepts. Automaton has 30875 states and 45035 transitions. Word has length 100 [2024-10-24 02:54:28,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:54:28,686 INFO L471 AbstractCegarLoop]: Abstraction has 30875 states and 45035 transitions. [2024-10-24 02:54:28,687 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 02:54:28,687 INFO L276 IsEmpty]: Start isEmpty. Operand 30875 states and 45035 transitions. [2024-10-24 02:54:28,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 02:54:28,690 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:28,690 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 02:54:28,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 02:54:28,691 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:28,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:28,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1181768492, now seen corresponding path program 1 times [2024-10-24 02:54:28,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:28,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375703445] [2024-10-24 02:54:28,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:28,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:28,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:28,870 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 02:54:28,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:28,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375703445] [2024-10-24 02:54:28,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375703445] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:28,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:28,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 02:54:28,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912859810] [2024-10-24 02:54:28,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:28,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 02:54:28,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:28,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 02:54:28,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 02:54:28,874 INFO L87 Difference]: Start difference. First operand 30875 states and 45035 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 02:54:31,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:31,151 INFO L93 Difference]: Finished difference Result 136427 states and 198835 transitions. [2024-10-24 02:54:31,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 02:54:31,152 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 02:54:31,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:31,311 INFO L225 Difference]: With dead ends: 136427 [2024-10-24 02:54:31,312 INFO L226 Difference]: Without dead ends: 121769 [2024-10-24 02:54:31,346 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 02:54:31,347 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 02:54:31,347 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 02:54:31,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121769 states. [2024-10-24 02:54:32,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121769 to 52891. [2024-10-24 02:54:32,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52891 states, 52889 states have (on average 1.449280568738301) internal successors, (76651), 52890 states have internal predecessors, (76651), 0 states have call successors, (0), 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 02:54:32,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52891 states to 52891 states and 76651 transitions. [2024-10-24 02:54:32,995 INFO L78 Accepts]: Start accepts. Automaton has 52891 states and 76651 transitions. Word has length 100 [2024-10-24 02:54:32,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:54:32,995 INFO L471 AbstractCegarLoop]: Abstraction has 52891 states and 76651 transitions. [2024-10-24 02:54:32,995 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 02:54:32,995 INFO L276 IsEmpty]: Start isEmpty. Operand 52891 states and 76651 transitions. [2024-10-24 02:54:32,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 02:54:32,999 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:32,999 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 02:54:32,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 02:54:33,000 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:33,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:33,000 INFO L85 PathProgramCache]: Analyzing trace with hash 953129260, now seen corresponding path program 1 times [2024-10-24 02:54:33,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:33,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020419434] [2024-10-24 02:54:33,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:33,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:33,382 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 02:54:33,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:33,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020419434] [2024-10-24 02:54:33,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020419434] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:33,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:33,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 02:54:33,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101807856] [2024-10-24 02:54:33,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:33,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 02:54:33,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:33,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 02:54:33,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 02:54:33,384 INFO L87 Difference]: Start difference. First operand 52891 states and 76651 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 02:54:35,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:35,820 INFO L93 Difference]: Finished difference Result 151083 states and 220019 transitions. [2024-10-24 02:54:35,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 02:54:35,821 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 02:54:35,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:35,970 INFO L225 Difference]: With dead ends: 151083 [2024-10-24 02:54:35,970 INFO L226 Difference]: Without dead ends: 136425 [2024-10-24 02:54:35,996 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 02:54:35,996 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 02:54:35,996 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 02:54:36,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136425 states. [2024-10-24 02:54:38,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136425 to 67547. [2024-10-24 02:54:38,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67547 states, 67545 states have (on average 1.4484417795543711) internal successors, (97835), 67546 states have internal predecessors, (97835), 0 states have call successors, (0), 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 02:54:38,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67547 states to 67547 states and 97835 transitions. [2024-10-24 02:54:38,256 INFO L78 Accepts]: Start accepts. Automaton has 67547 states and 97835 transitions. Word has length 100 [2024-10-24 02:54:38,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:54:38,256 INFO L471 AbstractCegarLoop]: Abstraction has 67547 states and 97835 transitions. [2024-10-24 02:54:38,256 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 02:54:38,256 INFO L276 IsEmpty]: Start isEmpty. Operand 67547 states and 97835 transitions. [2024-10-24 02:54:38,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 02:54:38,261 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:38,262 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 02:54:38,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 02:54:38,262 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:38,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:38,262 INFO L85 PathProgramCache]: Analyzing trace with hash 327473196, now seen corresponding path program 1 times [2024-10-24 02:54:38,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:38,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516236706] [2024-10-24 02:54:38,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:38,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:38,480 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 02:54:38,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:38,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516236706] [2024-10-24 02:54:38,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516236706] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:38,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:38,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 02:54:38,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268383767] [2024-10-24 02:54:38,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:38,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 02:54:38,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:38,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 02:54:38,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 02:54:38,482 INFO L87 Difference]: Start difference. First operand 67547 states and 97835 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 02:54:41,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:41,548 INFO L93 Difference]: Finished difference Result 165739 states and 241203 transitions. [2024-10-24 02:54:41,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 02:54:41,549 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 02:54:41,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:41,735 INFO L225 Difference]: With dead ends: 165739 [2024-10-24 02:54:41,735 INFO L226 Difference]: Without dead ends: 151081 [2024-10-24 02:54:41,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-24 02:54:41,777 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 02:54:41,777 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 02:54:42,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151081 states. [2024-10-24 02:54:44,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151081 to 82203. [2024-10-24 02:54:44,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82203 states, 82201 states have (on average 1.4479020936484959) internal successors, (119019), 82202 states have internal predecessors, (119019), 0 states have call successors, (0), 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 02:54:44,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82203 states to 82203 states and 119019 transitions. [2024-10-24 02:54:44,481 INFO L78 Accepts]: Start accepts. Automaton has 82203 states and 119019 transitions. Word has length 100 [2024-10-24 02:54:44,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:54:44,481 INFO L471 AbstractCegarLoop]: Abstraction has 82203 states and 119019 transitions. [2024-10-24 02:54:44,482 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 02:54:44,482 INFO L276 IsEmpty]: Start isEmpty. Operand 82203 states and 119019 transitions. [2024-10-24 02:54:44,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 02:54:44,487 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:44,487 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 02:54:44,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 02:54:44,487 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:44,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:44,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1216206636, now seen corresponding path program 1 times [2024-10-24 02:54:44,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:44,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642694989] [2024-10-24 02:54:44,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:44,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:44,874 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 02:54:44,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:44,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642694989] [2024-10-24 02:54:44,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642694989] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:44,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:44,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 02:54:44,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815174292] [2024-10-24 02:54:44,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:44,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 02:54:44,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:44,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 02:54:44,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 02:54:44,877 INFO L87 Difference]: Start difference. First operand 82203 states and 119019 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 02:54:47,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:47,764 INFO L93 Difference]: Finished difference Result 180395 states and 262387 transitions. [2024-10-24 02:54:47,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 02:54:47,765 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 02:54:47,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:47,995 INFO L225 Difference]: With dead ends: 180395 [2024-10-24 02:54:47,995 INFO L226 Difference]: Without dead ends: 165737 [2024-10-24 02:54:48,028 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 02:54:48,028 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 02:54:48,029 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 02:54:48,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165737 states. [2024-10-24 02:54:51,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165737 to 96859. [2024-10-24 02:54:51,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96859 states, 96857 states have (on average 1.4475257338137666) internal successors, (140203), 96858 states have internal predecessors, (140203), 0 states have call successors, (0), 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 02:54:51,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96859 states to 96859 states and 140203 transitions. [2024-10-24 02:54:51,495 INFO L78 Accepts]: Start accepts. Automaton has 96859 states and 140203 transitions. Word has length 100 [2024-10-24 02:54:51,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:54:51,496 INFO L471 AbstractCegarLoop]: Abstraction has 96859 states and 140203 transitions. [2024-10-24 02:54:51,496 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 02:54:51,496 INFO L276 IsEmpty]: Start isEmpty. Operand 96859 states and 140203 transitions. [2024-10-24 02:54:51,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 02:54:51,500 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:54:51,500 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 02:54:51,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 02:54:51,500 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:54:51,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:54:51,501 INFO L85 PathProgramCache]: Analyzing trace with hash 913185324, now seen corresponding path program 1 times [2024-10-24 02:54:51,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:54:51,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173057435] [2024-10-24 02:54:51,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:54:51,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:54:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:54:51,639 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 02:54:51,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:54:51,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173057435] [2024-10-24 02:54:51,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173057435] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:54:51,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:54:51,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 02:54:51,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946885652] [2024-10-24 02:54:51,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:54:51,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 02:54:51,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:54:51,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 02:54:51,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 02:54:51,641 INFO L87 Difference]: Start difference. First operand 96859 states and 140203 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) [2024-10-24 02:54:55,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:54:55,464 INFO L93 Difference]: Finished difference Result 195051 states and 283571 transitions. [2024-10-24 02:54:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 02:54:55,464 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 100 [2024-10-24 02:54:55,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:54:55,690 INFO L225 Difference]: With dead ends: 195051 [2024-10-24 02:54:55,690 INFO L226 Difference]: Without dead ends: 180393 [2024-10-24 02:54:55,723 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 02:54:55,723 INFO L432 NwaCegarLoop]: 1666 mSDtfsCounter, 9815 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9815 SdHoareTripleChecker+Valid, 4494 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:54:55,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9815 Valid, 4494 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 02:54:55,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180393 states.