./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.4.1.ufo.UNBOUNDED.pals+Problem12_label05.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.4.1.ufo.UNBOUNDED.pals+Problem12_label05.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 38d85b6b5a04cb96dc69842531ed31487f7945c34d1c701c72adfae91c235e8c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 04:53:29,192 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 04:53:29,242 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 04:53:29,246 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 04:53:29,248 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 04:53:29,267 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 04:53:29,267 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 04:53:29,268 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 04:53:29,268 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 04:53:29,268 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 04:53:29,268 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 04:53:29,269 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 04:53:29,269 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 04:53:29,269 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 04:53:29,270 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 04:53:29,270 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 04:53:29,270 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 04:53:29,270 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 04:53:29,271 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 04:53:29,271 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 04:53:29,271 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 04:53:29,273 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 04:53:29,273 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 04:53:29,274 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 04:53:29,274 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 04:53:29,274 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 04:53:29,274 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 04:53:29,274 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 04:53:29,275 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 04:53:29,275 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 04:53:29,275 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 04:53:29,275 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 04:53:29,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:53:29,275 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 04:53:29,276 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 04:53:29,276 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 04:53:29,276 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 04:53:29,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 04:53:29,276 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 04:53:29,277 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 04:53:29,277 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 04:53:29,281 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 04:53:29,281 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38d85b6b5a04cb96dc69842531ed31487f7945c34d1c701c72adfae91c235e8c [2024-10-14 04:53:29,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 04:53:29,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 04:53:29,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 04:53:29,510 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 04:53:29,510 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 04:53:29,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.4.1.ufo.UNBOUNDED.pals+Problem12_label05.c [2024-10-14 04:53:30,692 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 04:53:31,125 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 04:53:31,130 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.4.1.ufo.UNBOUNDED.pals+Problem12_label05.c [2024-10-14 04:53:31,158 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/792349c12/2bf3ea64957b40129f6f8d6ac7525876/FLAG5125d9a63 [2024-10-14 04:53:31,170 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/792349c12/2bf3ea64957b40129f6f8d6ac7525876 [2024-10-14 04:53:31,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 04:53:31,173 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 04:53:31,173 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 04:53:31,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 04:53:31,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 04:53:31,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:53:31" (1/1) ... [2024-10-14 04:53:31,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a5626ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:53:31, skipping insertion in model container [2024-10-14 04:53:31,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:53:31" (1/1) ... [2024-10-14 04:53:31,259 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 04:53:31,444 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.4.1.ufo.UNBOUNDED.pals+Problem12_label05.c[8749,8762] [2024-10-14 04:53:31,490 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.4.1.ufo.UNBOUNDED.pals+Problem12_label05.c[15685,15698] [2024-10-14 04:53:31,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:53:31,994 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 04:53:32,017 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.4.1.ufo.UNBOUNDED.pals+Problem12_label05.c[8749,8762] [2024-10-14 04:53:32,027 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.4.1.ufo.UNBOUNDED.pals+Problem12_label05.c[15685,15698] [2024-10-14 04:53:32,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:53:32,347 INFO L204 MainTranslator]: Completed translation [2024-10-14 04:53:32,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:53:32 WrapperNode [2024-10-14 04:53:32,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 04:53:32,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 04:53:32,348 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 04:53:32,348 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 04:53:32,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:53:32" (1/1) ... [2024-10-14 04:53:32,388 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:53:32" (1/1) ... [2024-10-14 04:53:32,608 INFO L138 Inliner]: procedures = 36, calls = 21, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 5040 [2024-10-14 04:53:32,608 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 04:53:32,609 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 04:53:32,609 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 04:53:32,609 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 04:53:32,617 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:53:32" (1/1) ... [2024-10-14 04:53:32,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:53:32" (1/1) ... [2024-10-14 04:53:32,662 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:53:32" (1/1) ... [2024-10-14 04:53:32,789 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]. [2024-10-14 04:53:32,789 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:53:32" (1/1) ... [2024-10-14 04:53:32,789 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:53:32" (1/1) ... [2024-10-14 04:53:32,913 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:53:32" (1/1) ... [2024-10-14 04:53:32,969 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:53:32" (1/1) ... [2024-10-14 04:53:32,987 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:53:32" (1/1) ... [2024-10-14 04:53:33,001 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:53:32" (1/1) ... [2024-10-14 04:53:33,051 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 04:53:33,052 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 04:53:33,052 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 04:53:33,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 04:53:33,053 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:53:32" (1/1) ... [2024-10-14 04:53:33,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:53:33,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:53:33,086 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) [2024-10-14 04:53:33,092 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 [2024-10-14 04:53:33,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 04:53:33,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 04:53:33,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 04:53:33,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 04:53:33,215 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 04:53:33,217 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 04:53:36,293 INFO L? ?]: Removed 739 outVars from TransFormulas that were not future-live. [2024-10-14 04:53:36,293 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 04:53:36,345 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 04:53:36,348 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 04:53:36,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:53:36 BoogieIcfgContainer [2024-10-14 04:53:36,349 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 04:53:36,351 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 04:53:36,351 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 04:53:36,354 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 04:53:36,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:53:31" (1/3) ... [2024-10-14 04:53:36,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be8d75d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:53:36, skipping insertion in model container [2024-10-14 04:53:36,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:53:32" (2/3) ... [2024-10-14 04:53:36,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be8d75d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:53:36, skipping insertion in model container [2024-10-14 04:53:36,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:53:36" (3/3) ... [2024-10-14 04:53:36,382 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals+Problem12_label05.c [2024-10-14 04:53:36,397 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 04:53:36,398 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 04:53:36,462 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 04:53:36,469 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;@6548d39c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 04:53:36,469 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 04:53:36,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 822 states, 819 states have (on average 1.9768009768009769) internal successors, (1619), 821 states have internal predecessors, (1619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:36,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-14 04:53:36,485 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:36,485 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:53:36,486 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:36,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:36,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1324896968, now seen corresponding path program 1 times [2024-10-14 04:53:36,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:36,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103985271] [2024-10-14 04:53:36,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:36,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:36,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:36,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:36,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103985271] [2024-10-14 04:53:36,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103985271] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:53:36,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:53:36,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 04:53:36,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416944135] [2024-10-14 04:53:36,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:53:36,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 04:53:36,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:36,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 04:53:36,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 04:53:36,717 INFO L87 Difference]: Start difference. First operand has 822 states, 819 states have (on average 1.9768009768009769) internal successors, (1619), 821 states have internal predecessors, (1619), 0 states have call successors, (0), 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 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:36,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:36,794 INFO L93 Difference]: Finished difference Result 1616 states and 3185 transitions. [2024-10-14 04:53:36,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 04:53:36,797 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2024-10-14 04:53:36,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:36,813 INFO L225 Difference]: With dead ends: 1616 [2024-10-14 04:53:36,813 INFO L226 Difference]: Without dead ends: 818 [2024-10-14 04:53:36,817 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 [2024-10-14 04:53:36,819 INFO L432 NwaCegarLoop]: 1547 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, 1547 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 [2024-10-14 04:53:36,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1547 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:53:36,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2024-10-14 04:53:36,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2024-10-14 04:53:36,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 816 states have (on average 1.8970588235294117) internal successors, (1548), 817 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:36,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1548 transitions. [2024-10-14 04:53:36,901 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1548 transitions. Word has length 19 [2024-10-14 04:53:36,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:36,902 INFO L471 AbstractCegarLoop]: Abstraction has 818 states and 1548 transitions. [2024-10-14 04:53:36,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:36,903 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1548 transitions. [2024-10-14 04:53:36,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-14 04:53:36,904 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:36,905 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:53:36,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 04:53:36,906 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:36,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:36,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1690206650, now seen corresponding path program 1 times [2024-10-14 04:53:36,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:36,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046961988] [2024-10-14 04:53:36,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:36,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:37,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:37,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:37,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046961988] [2024-10-14 04:53:37,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046961988] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:53:37,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:53:37,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:53:37,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173914470] [2024-10-14 04:53:37,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:53:37,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 04:53:37,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:37,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 04:53:37,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 04:53:37,022 INFO L87 Difference]: Start difference. First operand 818 states and 1548 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:37,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:37,096 INFO L93 Difference]: Finished difference Result 858 states and 1610 transitions. [2024-10-14 04:53:37,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 04:53:37,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2024-10-14 04:53:37,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:37,100 INFO L225 Difference]: With dead ends: 858 [2024-10-14 04:53:37,100 INFO L226 Difference]: Without dead ends: 818 [2024-10-14 04:53:37,100 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 [2024-10-14 04:53:37,101 INFO L432 NwaCegarLoop]: 1545 mSDtfsCounter, 0 mSDsluCounter, 3063 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4608 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:53:37,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4608 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:53:37,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2024-10-14 04:53:37,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2024-10-14 04:53:37,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 816 states have (on average 1.8688725490196079) internal successors, (1525), 817 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:37,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1525 transitions. [2024-10-14 04:53:37,119 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1525 transitions. Word has length 19 [2024-10-14 04:53:37,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:37,119 INFO L471 AbstractCegarLoop]: Abstraction has 818 states and 1525 transitions. [2024-10-14 04:53:37,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:37,119 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1525 transitions. [2024-10-14 04:53:37,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-14 04:53:37,120 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:37,120 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] [2024-10-14 04:53:37,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 04:53:37,121 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:37,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:37,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1827910901, now seen corresponding path program 1 times [2024-10-14 04:53:37,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:37,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779166669] [2024-10-14 04:53:37,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:37,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:37,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:37,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:37,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:37,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779166669] [2024-10-14 04:53:37,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779166669] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:53:37,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:53:37,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 04:53:37,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280885216] [2024-10-14 04:53:37,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:53:37,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 04:53:37,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:37,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 04:53:37,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:53:37,269 INFO L87 Difference]: Start difference. First operand 818 states and 1525 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:37,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:37,422 INFO L93 Difference]: Finished difference Result 1114 states and 1997 transitions. [2024-10-14 04:53:37,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 04:53:37,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2024-10-14 04:53:37,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:37,427 INFO L225 Difference]: With dead ends: 1114 [2024-10-14 04:53:37,427 INFO L226 Difference]: Without dead ends: 1077 [2024-10-14 04:53:37,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:53:37,430 INFO L432 NwaCegarLoop]: 1516 mSDtfsCounter, 6269 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6269 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:53:37,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6269 Valid, 2107 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:53:37,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2024-10-14 04:53:37,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 853. [2024-10-14 04:53:37,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 851 states have (on average 1.8578143360752057) internal successors, (1581), 852 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:37,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1581 transitions. [2024-10-14 04:53:37,447 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1581 transitions. Word has length 41 [2024-10-14 04:53:37,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:37,448 INFO L471 AbstractCegarLoop]: Abstraction has 853 states and 1581 transitions. [2024-10-14 04:53:37,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:37,449 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1581 transitions. [2024-10-14 04:53:37,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 04:53:37,450 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:37,451 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] [2024-10-14 04:53:37,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 04:53:37,451 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:37,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:37,452 INFO L85 PathProgramCache]: Analyzing trace with hash -143781275, now seen corresponding path program 1 times [2024-10-14 04:53:37,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:37,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601312947] [2024-10-14 04:53:37,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:37,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:37,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:37,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:37,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601312947] [2024-10-14 04:53:37,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601312947] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:53:37,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:53:37,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:53:37,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690250998] [2024-10-14 04:53:37,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:53:37,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:53:37,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:37,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:53:37,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:53:37,527 INFO L87 Difference]: Start difference. First operand 853 states and 1581 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:37,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:37,556 INFO L93 Difference]: Finished difference Result 986 states and 1792 transitions. [2024-10-14 04:53:37,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:53:37,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2024-10-14 04:53:37,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:37,560 INFO L225 Difference]: With dead ends: 986 [2024-10-14 04:53:37,560 INFO L226 Difference]: Without dead ends: 914 [2024-10-14 04:53:37,562 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 [2024-10-14 04:53:37,562 INFO L432 NwaCegarLoop]: 1518 mSDtfsCounter, 1474 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1569 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 [2024-10-14 04:53:37,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 1569 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:53:37,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2024-10-14 04:53:37,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 910. [2024-10-14 04:53:37,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 908 states have (on average 1.8381057268722467) internal successors, (1669), 909 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:37,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1669 transitions. [2024-10-14 04:53:37,579 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1669 transitions. Word has length 43 [2024-10-14 04:53:37,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:37,579 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1669 transitions. [2024-10-14 04:53:37,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:37,579 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1669 transitions. [2024-10-14 04:53:37,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 04:53:37,580 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:37,581 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] [2024-10-14 04:53:37,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 04:53:37,581 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:37,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:37,581 INFO L85 PathProgramCache]: Analyzing trace with hash -141636323, now seen corresponding path program 1 times [2024-10-14 04:53:37,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:37,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730861862] [2024-10-14 04:53:37,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:37,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:37,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:37,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:37,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730861862] [2024-10-14 04:53:37,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730861862] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:53:37,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:53:37,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 04:53:37,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578142486] [2024-10-14 04:53:37,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:53:37,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 04:53:37,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:37,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 04:53:37,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:53:37,747 INFO L87 Difference]: Start difference. First operand 910 states and 1669 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:37,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:37,855 INFO L93 Difference]: Finished difference Result 1041 states and 1873 transitions. [2024-10-14 04:53:37,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 04:53:37,856 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2024-10-14 04:53:37,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:37,859 INFO L225 Difference]: With dead ends: 1041 [2024-10-14 04:53:37,859 INFO L226 Difference]: Without dead ends: 912 [2024-10-14 04:53:37,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-14 04:53:37,861 INFO L432 NwaCegarLoop]: 1516 mSDtfsCounter, 2970 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2970 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:53:37,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2970 Valid, 1678 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:53:37,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2024-10-14 04:53:37,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 910. [2024-10-14 04:53:37,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 908 states have (on average 1.8359030837004404) internal successors, (1667), 909 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:37,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1667 transitions. [2024-10-14 04:53:37,879 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1667 transitions. Word has length 43 [2024-10-14 04:53:37,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:37,879 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1667 transitions. [2024-10-14 04:53:37,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:37,880 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1667 transitions. [2024-10-14 04:53:37,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-14 04:53:37,883 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:37,883 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:53:37,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 04:53:37,884 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:37,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:37,884 INFO L85 PathProgramCache]: Analyzing trace with hash -224171133, now seen corresponding path program 1 times [2024-10-14 04:53:37,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:37,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896586408] [2024-10-14 04:53:37,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:37,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:38,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:38,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:38,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896586408] [2024-10-14 04:53:38,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896586408] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:53:38,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:53:38,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:53:38,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966524883] [2024-10-14 04:53:38,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:53:38,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 04:53:38,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:38,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 04:53:38,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 04:53:38,048 INFO L87 Difference]: Start difference. First operand 910 states and 1667 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:38,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:38,083 INFO L93 Difference]: Finished difference Result 916 states and 1674 transitions. [2024-10-14 04:53:38,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 04:53:38,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-10-14 04:53:38,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:38,089 INFO L225 Difference]: With dead ends: 916 [2024-10-14 04:53:38,089 INFO L226 Difference]: Without dead ends: 914 [2024-10-14 04:53:38,090 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 [2024-10-14 04:53:38,090 INFO L432 NwaCegarLoop]: 1521 mSDtfsCounter, 0 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4555 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 [2024-10-14 04:53:38,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4555 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:53:38,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2024-10-14 04:53:38,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 914. [2024-10-14 04:53:38,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 912 states have (on average 1.831140350877193) internal successors, (1670), 913 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:38,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1670 transitions. [2024-10-14 04:53:38,113 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1670 transitions. Word has length 44 [2024-10-14 04:53:38,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:38,113 INFO L471 AbstractCegarLoop]: Abstraction has 914 states and 1670 transitions. [2024-10-14 04:53:38,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:38,113 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1670 transitions. [2024-10-14 04:53:38,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-14 04:53:38,115 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:38,115 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] [2024-10-14 04:53:38,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 04:53:38,115 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:38,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:38,116 INFO L85 PathProgramCache]: Analyzing trace with hash 339171325, now seen corresponding path program 1 times [2024-10-14 04:53:38,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:38,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631806223] [2024-10-14 04:53:38,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:38,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:38,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:38,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:38,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631806223] [2024-10-14 04:53:38,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631806223] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:53:38,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:53:38,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:53:38,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615029951] [2024-10-14 04:53:38,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:53:38,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:53:38,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:38,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:53:38,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:53:38,170 INFO L87 Difference]: Start difference. First operand 914 states and 1670 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:38,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:38,200 INFO L93 Difference]: Finished difference Result 1164 states and 2050 transitions. [2024-10-14 04:53:38,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:53:38,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2024-10-14 04:53:38,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:38,204 INFO L225 Difference]: With dead ends: 1164 [2024-10-14 04:53:38,204 INFO L226 Difference]: Without dead ends: 1031 [2024-10-14 04:53:38,205 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 [2024-10-14 04:53:38,206 INFO L432 NwaCegarLoop]: 1557 mSDtfsCounter, 1485 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1620 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 [2024-10-14 04:53:38,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 1620 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:53:38,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2024-10-14 04:53:38,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1029. [2024-10-14 04:53:38,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 1027 states have (on average 1.7925998052580332) internal successors, (1841), 1028 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:38,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1841 transitions. [2024-10-14 04:53:38,224 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1841 transitions. Word has length 45 [2024-10-14 04:53:38,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:38,226 INFO L471 AbstractCegarLoop]: Abstraction has 1029 states and 1841 transitions. [2024-10-14 04:53:38,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:38,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1841 transitions. [2024-10-14 04:53:38,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-14 04:53:38,227 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:38,227 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] [2024-10-14 04:53:38,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 04:53:38,227 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:38,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:38,228 INFO L85 PathProgramCache]: Analyzing trace with hash -286484739, now seen corresponding path program 1 times [2024-10-14 04:53:38,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:38,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399836994] [2024-10-14 04:53:38,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:38,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:38,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:38,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:38,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399836994] [2024-10-14 04:53:38,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399836994] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:53:38,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:53:38,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:53:38,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431828540] [2024-10-14 04:53:38,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:53:38,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:53:38,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:38,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:53:38,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:53:38,285 INFO L87 Difference]: Start difference. First operand 1029 states and 1841 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:38,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:38,328 INFO L93 Difference]: Finished difference Result 1493 states and 2535 transitions. [2024-10-14 04:53:38,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:53:38,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2024-10-14 04:53:38,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:38,333 INFO L225 Difference]: With dead ends: 1493 [2024-10-14 04:53:38,333 INFO L226 Difference]: Without dead ends: 1245 [2024-10-14 04:53:38,334 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 [2024-10-14 04:53:38,335 INFO L432 NwaCegarLoop]: 1555 mSDtfsCounter, 1483 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 1622 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 [2024-10-14 04:53:38,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 1622 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:53:38,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2024-10-14 04:53:38,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1243. [2024-10-14 04:53:38,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 1241 states have (on average 1.7332796132151491) internal successors, (2151), 1242 states have internal predecessors, (2151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:38,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 2151 transitions. [2024-10-14 04:53:38,362 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 2151 transitions. Word has length 45 [2024-10-14 04:53:38,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:38,362 INFO L471 AbstractCegarLoop]: Abstraction has 1243 states and 2151 transitions. [2024-10-14 04:53:38,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:38,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 2151 transitions. [2024-10-14 04:53:38,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-14 04:53:38,363 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:38,363 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] [2024-10-14 04:53:38,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 04:53:38,363 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:38,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:38,364 INFO L85 PathProgramCache]: Analyzing trace with hash 602248701, now seen corresponding path program 1 times [2024-10-14 04:53:38,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:38,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287122234] [2024-10-14 04:53:38,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:38,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:38,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:38,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:38,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287122234] [2024-10-14 04:53:38,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287122234] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:53:38,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:53:38,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:53:38,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665718219] [2024-10-14 04:53:38,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:53:38,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:53:38,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:38,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:53:38,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:53:38,410 INFO L87 Difference]: Start difference. First operand 1243 states and 2151 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:38,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:38,448 INFO L93 Difference]: Finished difference Result 2103 states and 3409 transitions. [2024-10-14 04:53:38,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:53:38,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2024-10-14 04:53:38,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:38,456 INFO L225 Difference]: With dead ends: 2103 [2024-10-14 04:53:38,457 INFO L226 Difference]: Without dead ends: 1641 [2024-10-14 04:53:38,458 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 [2024-10-14 04:53:38,459 INFO L432 NwaCegarLoop]: 1553 mSDtfsCounter, 1481 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 1624 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 [2024-10-14 04:53:38,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 1624 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:53:38,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2024-10-14 04:53:38,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1639. [2024-10-14 04:53:38,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1639 states, 1637 states have (on average 1.653634697617593) internal successors, (2707), 1638 states have internal predecessors, (2707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:38,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2707 transitions. [2024-10-14 04:53:38,504 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2707 transitions. Word has length 45 [2024-10-14 04:53:38,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:38,505 INFO L471 AbstractCegarLoop]: Abstraction has 1639 states and 2707 transitions. [2024-10-14 04:53:38,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:38,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2707 transitions. [2024-10-14 04:53:38,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-14 04:53:38,506 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:38,506 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:53:38,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 04:53:38,507 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:38,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:38,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1358107618, now seen corresponding path program 1 times [2024-10-14 04:53:38,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:38,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419983210] [2024-10-14 04:53:38,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:38,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:38,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:38,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:38,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419983210] [2024-10-14 04:53:38,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419983210] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:53:38,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:53:38,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:53:38,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140279397] [2024-10-14 04:53:38,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:53:38,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:53:38,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:38,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:53:38,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:53:38,555 INFO L87 Difference]: Start difference. First operand 1639 states and 2707 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:38,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:38,599 INFO L93 Difference]: Finished difference Result 2542 states and 4041 transitions. [2024-10-14 04:53:38,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:53:38,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2024-10-14 04:53:38,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:38,607 INFO L225 Difference]: With dead ends: 2542 [2024-10-14 04:53:38,607 INFO L226 Difference]: Without dead ends: 2043 [2024-10-14 04:53:38,609 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 [2024-10-14 04:53:38,609 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 1484 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1621 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 [2024-10-14 04:53:38,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1621 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:53:38,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2043 states. [2024-10-14 04:53:38,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2043 to 2041. [2024-10-14 04:53:38,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2041 states, 2039 states have (on average 1.6071603727317312) internal successors, (3277), 2040 states have internal predecessors, (3277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:38,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2041 states to 2041 states and 3277 transitions. [2024-10-14 04:53:38,663 INFO L78 Accepts]: Start accepts. Automaton has 2041 states and 3277 transitions. Word has length 47 [2024-10-14 04:53:38,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:38,663 INFO L471 AbstractCegarLoop]: Abstraction has 2041 states and 3277 transitions. [2024-10-14 04:53:38,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:38,663 INFO L276 IsEmpty]: Start isEmpty. Operand 2041 states and 3277 transitions. [2024-10-14 04:53:38,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-14 04:53:38,664 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:38,664 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] [2024-10-14 04:53:38,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 04:53:38,665 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:38,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:38,665 INFO L85 PathProgramCache]: Analyzing trace with hash 2047190193, now seen corresponding path program 1 times [2024-10-14 04:53:38,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:38,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979988300] [2024-10-14 04:53:38,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:38,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:38,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:38,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:38,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979988300] [2024-10-14 04:53:38,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979988300] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:53:38,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:53:38,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:53:38,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784273234] [2024-10-14 04:53:38,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:53:38,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 04:53:38,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:38,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 04:53:38,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 04:53:38,778 INFO L87 Difference]: Start difference. First operand 2041 states and 3277 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:43,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:43,502 INFO L93 Difference]: Finished difference Result 4296 states and 7586 transitions. [2024-10-14 04:53:43,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 04:53:43,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-10-14 04:53:43,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:43,511 INFO L225 Difference]: With dead ends: 4296 [2024-10-14 04:53:43,511 INFO L226 Difference]: Without dead ends: 3543 [2024-10-14 04:53:43,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:53:43,513 INFO L432 NwaCegarLoop]: 758 mSDtfsCounter, 2366 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5357 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2366 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 6510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:53:43,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2366 Valid, 776 Invalid, 6510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5357 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-10-14 04:53:43,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2024-10-14 04:53:43,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 3543. [2024-10-14 04:53:43,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3543 states, 3541 states have (on average 1.522451284947755) internal successors, (5391), 3542 states have internal predecessors, (5391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:43,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3543 states to 3543 states and 5391 transitions. [2024-10-14 04:53:43,561 INFO L78 Accepts]: Start accepts. Automaton has 3543 states and 5391 transitions. Word has length 59 [2024-10-14 04:53:43,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:43,562 INFO L471 AbstractCegarLoop]: Abstraction has 3543 states and 5391 transitions. [2024-10-14 04:53:43,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:43,562 INFO L276 IsEmpty]: Start isEmpty. Operand 3543 states and 5391 transitions. [2024-10-14 04:53:43,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 04:53:43,562 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:43,563 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:53:43,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 04:53:43,563 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:43,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:43,563 INFO L85 PathProgramCache]: Analyzing trace with hash 445025325, now seen corresponding path program 1 times [2024-10-14 04:53:43,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:43,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689789212] [2024-10-14 04:53:43,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:43,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:43,685 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 04:53:43,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:43,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689789212] [2024-10-14 04:53:43,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689789212] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:53:43,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:53:43,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 04:53:43,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134355660] [2024-10-14 04:53:43,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:53:43,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 04:53:43,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:43,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 04:53:43,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:53:43,686 INFO L87 Difference]: Start difference. First operand 3543 states and 5391 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:43,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:43,833 INFO L93 Difference]: Finished difference Result 8849 states and 13004 transitions. [2024-10-14 04:53:43,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 04:53:43,835 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-10-14 04:53:43,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:43,853 INFO L225 Difference]: With dead ends: 8849 [2024-10-14 04:53:43,853 INFO L226 Difference]: Without dead ends: 7591 [2024-10-14 04:53:43,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:53:43,858 INFO L432 NwaCegarLoop]: 1574 mSDtfsCounter, 4657 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4657 SdHoareTripleChecker+Valid, 3329 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:53:43,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4657 Valid, 3329 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:53:43,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7591 states. [2024-10-14 04:53:43,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7591 to 4799. [2024-10-14 04:53:43,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4799 states, 4797 states have (on average 1.4957264957264957) internal successors, (7175), 4798 states have internal predecessors, (7175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:43,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4799 states to 4799 states and 7175 transitions. [2024-10-14 04:53:43,953 INFO L78 Accepts]: Start accepts. Automaton has 4799 states and 7175 transitions. Word has length 61 [2024-10-14 04:53:43,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:43,953 INFO L471 AbstractCegarLoop]: Abstraction has 4799 states and 7175 transitions. [2024-10-14 04:53:43,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:43,953 INFO L276 IsEmpty]: Start isEmpty. Operand 4799 states and 7175 transitions. [2024-10-14 04:53:43,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 04:53:43,954 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:43,954 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:53:43,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 04:53:43,954 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:43,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:43,955 INFO L85 PathProgramCache]: Analyzing trace with hash -180630739, now seen corresponding path program 1 times [2024-10-14 04:53:43,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:43,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174347317] [2024-10-14 04:53:43,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:43,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:44,059 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 04:53:44,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:44,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174347317] [2024-10-14 04:53:44,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174347317] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:53:44,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:53:44,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 04:53:44,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226718240] [2024-10-14 04:53:44,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:53:44,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 04:53:44,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:44,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 04:53:44,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:53:44,062 INFO L87 Difference]: Start difference. First operand 4799 states and 7175 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:44,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:44,234 INFO L93 Difference]: Finished difference Result 10105 states and 14788 transitions. [2024-10-14 04:53:44,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 04:53:44,235 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 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 61 [2024-10-14 04:53:44,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:44,261 INFO L225 Difference]: With dead ends: 10105 [2024-10-14 04:53:44,261 INFO L226 Difference]: Without dead ends: 8847 [2024-10-14 04:53:44,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:53:44,270 INFO L432 NwaCegarLoop]: 1571 mSDtfsCounter, 4681 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4681 SdHoareTripleChecker+Valid, 3284 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:53:44,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4681 Valid, 3284 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:53:44,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8847 states. [2024-10-14 04:53:44,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8847 to 6687. [2024-10-14 04:53:44,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6687 states, 6685 states have (on average 1.4706058339566193) internal successors, (9831), 6686 states have internal predecessors, (9831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:44,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6687 states to 6687 states and 9831 transitions. [2024-10-14 04:53:44,430 INFO L78 Accepts]: Start accepts. Automaton has 6687 states and 9831 transitions. Word has length 61 [2024-10-14 04:53:44,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:44,430 INFO L471 AbstractCegarLoop]: Abstraction has 6687 states and 9831 transitions. [2024-10-14 04:53:44,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:44,431 INFO L276 IsEmpty]: Start isEmpty. Operand 6687 states and 9831 transitions. [2024-10-14 04:53:44,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 04:53:44,431 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:44,432 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:53:44,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 04:53:44,432 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:44,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:44,432 INFO L85 PathProgramCache]: Analyzing trace with hash 708102701, now seen corresponding path program 1 times [2024-10-14 04:53:44,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:44,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686108010] [2024-10-14 04:53:44,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:44,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:44,542 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 04:53:44,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:44,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686108010] [2024-10-14 04:53:44,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686108010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:53:44,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:53:44,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 04:53:44,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959673075] [2024-10-14 04:53:44,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:53:44,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 04:53:44,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:44,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 04:53:44,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:53:44,544 INFO L87 Difference]: Start difference. First operand 6687 states and 9831 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:44,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:44,732 INFO L93 Difference]: Finished difference Result 11361 states and 16572 transitions. [2024-10-14 04:53:44,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 04:53:44,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 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 61 [2024-10-14 04:53:44,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:44,747 INFO L225 Difference]: With dead ends: 11361 [2024-10-14 04:53:44,747 INFO L226 Difference]: Without dead ends: 10103 [2024-10-14 04:53:44,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:53:44,751 INFO L432 NwaCegarLoop]: 1573 mSDtfsCounter, 4667 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4667 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:53:44,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4667 Valid, 3303 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:53:44,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10103 states. [2024-10-14 04:53:44,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10103 to 7943. [2024-10-14 04:53:44,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7943 states, 7941 states have (on average 1.4626621332325904) internal successors, (11615), 7942 states have internal predecessors, (11615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:44,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7943 states to 7943 states and 11615 transitions. [2024-10-14 04:53:44,903 INFO L78 Accepts]: Start accepts. Automaton has 7943 states and 11615 transitions. Word has length 61 [2024-10-14 04:53:44,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:44,903 INFO L471 AbstractCegarLoop]: Abstraction has 7943 states and 11615 transitions. [2024-10-14 04:53:44,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:44,904 INFO L276 IsEmpty]: Start isEmpty. Operand 7943 states and 11615 transitions. [2024-10-14 04:53:44,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-14 04:53:44,905 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:44,906 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:53:44,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 04:53:44,907 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:44,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:44,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1949780395, now seen corresponding path program 1 times [2024-10-14 04:53:44,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:44,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022743924] [2024-10-14 04:53:44,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:44,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:44,967 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:44,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:44,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022743924] [2024-10-14 04:53:44,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022743924] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:53:44,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:53:44,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:53:44,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912828595] [2024-10-14 04:53:44,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:53:44,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:53:44,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:44,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:53:44,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:53:44,969 INFO L87 Difference]: Start difference. First operand 7943 states and 11615 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:45,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:45,046 INFO L93 Difference]: Finished difference Result 11996 states and 17467 transitions. [2024-10-14 04:53:45,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:53:45,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-10-14 04:53:45,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:45,056 INFO L225 Difference]: With dead ends: 11996 [2024-10-14 04:53:45,056 INFO L226 Difference]: Without dead ends: 6338 [2024-10-14 04:53:45,063 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 [2024-10-14 04:53:45,063 INFO L432 NwaCegarLoop]: 1554 mSDtfsCounter, 42 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3062 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:53:45,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 3062 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:53:45,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6338 states. [2024-10-14 04:53:45,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6338 to 6336. [2024-10-14 04:53:45,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6336 states, 6334 states have (on average 1.4777391853489106) internal successors, (9360), 6335 states have internal predecessors, (9360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:45,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6336 states to 6336 states and 9360 transitions. [2024-10-14 04:53:45,247 INFO L78 Accepts]: Start accepts. Automaton has 6336 states and 9360 transitions. Word has length 63 [2024-10-14 04:53:45,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:45,248 INFO L471 AbstractCegarLoop]: Abstraction has 6336 states and 9360 transitions. [2024-10-14 04:53:45,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:45,248 INFO L276 IsEmpty]: Start isEmpty. Operand 6336 states and 9360 transitions. [2024-10-14 04:53:45,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-14 04:53:45,249 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:45,249 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:53:45,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 04:53:45,250 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:45,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:45,250 INFO L85 PathProgramCache]: Analyzing trace with hash 4586514, now seen corresponding path program 1 times [2024-10-14 04:53:45,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:45,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301714646] [2024-10-14 04:53:45,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:45,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:45,357 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 04:53:45,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:45,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301714646] [2024-10-14 04:53:45,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301714646] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:53:45,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:53:45,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 04:53:45,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365891503] [2024-10-14 04:53:45,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:53:45,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 04:53:45,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:45,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 04:53:45,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:53:45,360 INFO L87 Difference]: Start difference. First operand 6336 states and 9360 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:45,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:45,598 INFO L93 Difference]: Finished difference Result 9930 states and 14549 transitions. [2024-10-14 04:53:45,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 04:53:45,598 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-10-14 04:53:45,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:45,611 INFO L225 Difference]: With dead ends: 9930 [2024-10-14 04:53:45,611 INFO L226 Difference]: Without dead ends: 9032 [2024-10-14 04:53:45,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:53:45,615 INFO L432 NwaCegarLoop]: 1569 mSDtfsCounter, 4657 mSDsluCounter, 1799 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4657 SdHoareTripleChecker+Valid, 3368 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:53:45,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4657 Valid, 3368 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:53:45,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9032 states. [2024-10-14 04:53:45,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9032 to 7232. [2024-10-14 04:53:45,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7232 states, 7230 states have (on average 1.4716459197787) internal successors, (10640), 7231 states have internal predecessors, (10640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:45,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7232 states to 7232 states and 10640 transitions. [2024-10-14 04:53:45,792 INFO L78 Accepts]: Start accepts. Automaton has 7232 states and 10640 transitions. Word has length 63 [2024-10-14 04:53:45,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:45,792 INFO L471 AbstractCegarLoop]: Abstraction has 7232 states and 10640 transitions. [2024-10-14 04:53:45,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:45,793 INFO L276 IsEmpty]: Start isEmpty. Operand 7232 states and 10640 transitions. [2024-10-14 04:53:45,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-14 04:53:45,793 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:45,794 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:53:45,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 04:53:45,794 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:45,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:45,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1055056157, now seen corresponding path program 1 times [2024-10-14 04:53:45,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:45,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022291561] [2024-10-14 04:53:45,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:45,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:45,859 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:45,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:45,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022291561] [2024-10-14 04:53:45,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022291561] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:53:45,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:53:45,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:53:45,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245956668] [2024-10-14 04:53:45,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:53:45,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:53:45,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:45,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:53:45,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:53:45,861 INFO L87 Difference]: Start difference. First operand 7232 states and 10640 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:45,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:45,919 INFO L93 Difference]: Finished difference Result 9700 states and 14162 transitions. [2024-10-14 04:53:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:53:45,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-10-14 04:53:45,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:45,925 INFO L225 Difference]: With dead ends: 9700 [2024-10-14 04:53:45,926 INFO L226 Difference]: Without dead ends: 4770 [2024-10-14 04:53:45,929 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 [2024-10-14 04:53:45,930 INFO L432 NwaCegarLoop]: 1547 mSDtfsCounter, 37 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 3047 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:53:45,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 3047 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:53:45,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4770 states. [2024-10-14 04:53:45,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4770 to 4768. [2024-10-14 04:53:45,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4768 states, 4766 states have (on average 1.4846831724716743) internal successors, (7076), 4767 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:45,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4768 states to 4768 states and 7076 transitions. [2024-10-14 04:53:45,995 INFO L78 Accepts]: Start accepts. Automaton has 4768 states and 7076 transitions. Word has length 64 [2024-10-14 04:53:45,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:45,995 INFO L471 AbstractCegarLoop]: Abstraction has 4768 states and 7076 transitions. [2024-10-14 04:53:45,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:45,995 INFO L276 IsEmpty]: Start isEmpty. Operand 4768 states and 7076 transitions. [2024-10-14 04:53:45,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 04:53:45,996 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:45,996 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:53:45,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 04:53:45,996 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:45,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:45,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1300219787, now seen corresponding path program 1 times [2024-10-14 04:53:45,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:45,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415275227] [2024-10-14 04:53:45,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:45,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:46,067 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:46,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:46,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415275227] [2024-10-14 04:53:46,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415275227] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:53:46,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:53:46,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:53:46,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091432390] [2024-10-14 04:53:46,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:53:46,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:53:46,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:46,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:53:46,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:53:46,069 INFO L87 Difference]: Start difference. First operand 4768 states and 7076 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:46,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:46,106 INFO L93 Difference]: Finished difference Result 6004 states and 8816 transitions. [2024-10-14 04:53:46,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:53:46,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-14 04:53:46,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:46,111 INFO L225 Difference]: With dead ends: 6004 [2024-10-14 04:53:46,112 INFO L226 Difference]: Without dead ends: 3538 [2024-10-14 04:53:46,114 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 [2024-10-14 04:53:46,114 INFO L432 NwaCegarLoop]: 1540 mSDtfsCounter, 34 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 3032 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:53:46,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 3032 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:53:46,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3538 states. [2024-10-14 04:53:46,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3538 to 3536. [2024-10-14 04:53:46,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3536 states, 3534 states have (on average 1.5042444821731749) internal successors, (5316), 3535 states have internal predecessors, (5316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:46,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3536 states to 3536 states and 5316 transitions. [2024-10-14 04:53:46,205 INFO L78 Accepts]: Start accepts. Automaton has 3536 states and 5316 transitions. Word has length 66 [2024-10-14 04:53:46,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:46,205 INFO L471 AbstractCegarLoop]: Abstraction has 3536 states and 5316 transitions. [2024-10-14 04:53:46,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:46,205 INFO L276 IsEmpty]: Start isEmpty. Operand 3536 states and 5316 transitions. [2024-10-14 04:53:46,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-14 04:53:46,206 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:46,206 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:53:46,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 04:53:46,206 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:46,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:46,206 INFO L85 PathProgramCache]: Analyzing trace with hash 925871993, now seen corresponding path program 1 times [2024-10-14 04:53:46,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:46,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010316253] [2024-10-14 04:53:46,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:46,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:46,263 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:46,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:46,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010316253] [2024-10-14 04:53:46,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010316253] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:53:46,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:53:46,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:53:46,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892323909] [2024-10-14 04:53:46,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:53:46,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:53:46,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:46,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:53:46,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:53:46,265 INFO L87 Difference]: Start difference. First operand 3536 states and 5316 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:46,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:46,294 INFO L93 Difference]: Finished difference Result 4156 states and 6176 transitions. [2024-10-14 04:53:46,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:53:46,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-10-14 04:53:46,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:46,302 INFO L225 Difference]: With dead ends: 4156 [2024-10-14 04:53:46,302 INFO L226 Difference]: Without dead ends: 2922 [2024-10-14 04:53:46,304 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 [2024-10-14 04:53:46,304 INFO L432 NwaCegarLoop]: 1533 mSDtfsCounter, 31 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3017 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:53:46,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 3017 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:53:46,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2024-10-14 04:53:46,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2920. [2024-10-14 04:53:46,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2920 states, 2918 states have (on average 1.523989033584647) internal successors, (4447), 2919 states have internal predecessors, (4447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:46,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2920 states to 2920 states and 4447 transitions. [2024-10-14 04:53:46,334 INFO L78 Accepts]: Start accepts. Automaton has 2920 states and 4447 transitions. Word has length 68 [2024-10-14 04:53:46,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:46,334 INFO L471 AbstractCegarLoop]: Abstraction has 2920 states and 4447 transitions. [2024-10-14 04:53:46,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:46,335 INFO L276 IsEmpty]: Start isEmpty. Operand 2920 states and 4447 transitions. [2024-10-14 04:53:46,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-14 04:53:46,335 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:46,335 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:53:46,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 04:53:46,336 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:46,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:46,337 INFO L85 PathProgramCache]: Analyzing trace with hash -324175641, now seen corresponding path program 1 times [2024-10-14 04:53:46,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:46,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145302085] [2024-10-14 04:53:46,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:46,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:46,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:48,317 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:48,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:48,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145302085] [2024-10-14 04:53:48,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145302085] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:53:48,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476765427] [2024-10-14 04:53:48,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:48,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:53:48,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:53:48,320 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:53:48,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 04:53:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:48,411 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 04:53:48,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:53:48,588 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 04:53:48,589 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:53:48,724 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 04:53:48,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476765427] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:53:48,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:53:48,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 4] total 18 [2024-10-14 04:53:48,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525342876] [2024-10-14 04:53:48,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:53:48,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 04:53:48,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:48,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 04:53:48,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-10-14 04:53:48,727 INFO L87 Difference]: Start difference. First operand 2920 states and 4447 transitions. Second operand has 18 states, 18 states have (on average 10.88888888888889) internal successors, (196), 18 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:51,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:51,965 INFO L93 Difference]: Finished difference Result 7643 states and 10818 transitions. [2024-10-14 04:53:51,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-10-14 04:53:51,966 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.88888888888889) internal successors, (196), 18 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-10-14 04:53:51,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:51,976 INFO L225 Difference]: With dead ends: 7643 [2024-10-14 04:53:51,976 INFO L226 Difference]: Without dead ends: 7025 [2024-10-14 04:53:51,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1841 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1094, Invalid=4456, Unknown=0, NotChecked=0, Total=5550 [2024-10-14 04:53:51,980 INFO L432 NwaCegarLoop]: 1503 mSDtfsCounter, 18330 mSDsluCounter, 4818 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18330 SdHoareTripleChecker+Valid, 6321 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:53:51,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18330 Valid, 6321 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 04:53:51,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7025 states. [2024-10-14 04:53:52,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7025 to 6905. [2024-10-14 04:53:52,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6905 states, 6903 states have (on average 1.381428364479212) internal successors, (9536), 6904 states have internal predecessors, (9536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:52,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6905 states to 6905 states and 9536 transitions. [2024-10-14 04:53:52,112 INFO L78 Accepts]: Start accepts. Automaton has 6905 states and 9536 transitions. Word has length 70 [2024-10-14 04:53:52,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:52,112 INFO L471 AbstractCegarLoop]: Abstraction has 6905 states and 9536 transitions. [2024-10-14 04:53:52,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.88888888888889) internal successors, (196), 18 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:52,113 INFO L276 IsEmpty]: Start isEmpty. Operand 6905 states and 9536 transitions. [2024-10-14 04:53:52,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-14 04:53:52,113 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:52,114 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:53:52,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 04:53:52,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:53:52,315 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:52,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:52,315 INFO L85 PathProgramCache]: Analyzing trace with hash -10785168, now seen corresponding path program 1 times [2024-10-14 04:53:52,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:52,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501453703] [2024-10-14 04:53:52,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:52,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:52,611 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:52,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:52,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501453703] [2024-10-14 04:53:52,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501453703] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:53:52,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876304196] [2024-10-14 04:53:52,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:52,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:53:52,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:53:52,614 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:53:52,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 04:53:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:52,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 04:53:52,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:53:52,988 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:52,988 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:53:53,719 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:53,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876304196] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:53:53,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:53:53,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-10-14 04:53:53,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411210680] [2024-10-14 04:53:53,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:53:53,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-14 04:53:53,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:53,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-14 04:53:53,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2024-10-14 04:53:53,721 INFO L87 Difference]: Start difference. First operand 6905 states and 9536 transitions. Second operand has 23 states, 23 states have (on average 6.782608695652174) internal successors, (156), 22 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:54,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:54,169 INFO L93 Difference]: Finished difference Result 14837 states and 19740 transitions. [2024-10-14 04:53:54,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 04:53:54,170 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.782608695652174) internal successors, (156), 22 states have internal predecessors, (156), 0 states have call successors, (0), 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 71 [2024-10-14 04:53:54,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:54,182 INFO L225 Difference]: With dead ends: 14837 [2024-10-14 04:53:54,182 INFO L226 Difference]: Without dead ends: 10446 [2024-10-14 04:53:54,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=247, Invalid=683, Unknown=0, NotChecked=0, Total=930 [2024-10-14 04:53:54,189 INFO L432 NwaCegarLoop]: 1501 mSDtfsCounter, 13492 mSDsluCounter, 6109 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13492 SdHoareTripleChecker+Valid, 7610 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:53:54,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13492 Valid, 7610 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:53:54,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10446 states. [2024-10-14 04:53:54,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10446 to 10442. [2024-10-14 04:53:54,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10442 states, 10440 states have (on average 1.3420498084291188) internal successors, (14011), 10441 states have internal predecessors, (14011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:54,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10442 states to 10442 states and 14011 transitions. [2024-10-14 04:53:54,469 INFO L78 Accepts]: Start accepts. Automaton has 10442 states and 14011 transitions. Word has length 71 [2024-10-14 04:53:54,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:54,469 INFO L471 AbstractCegarLoop]: Abstraction has 10442 states and 14011 transitions. [2024-10-14 04:53:54,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.782608695652174) internal successors, (156), 22 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:54,469 INFO L276 IsEmpty]: Start isEmpty. Operand 10442 states and 14011 transitions. [2024-10-14 04:53:54,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-14 04:53:54,470 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:54,471 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:53:54,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 04:53:54,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-14 04:53:54,676 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:54,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:54,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1140000624, now seen corresponding path program 1 times [2024-10-14 04:53:54,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:54,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448981460] [2024-10-14 04:53:54,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:54,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:56,138 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:56,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:56,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448981460] [2024-10-14 04:53:56,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448981460] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:53:56,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427149388] [2024-10-14 04:53:56,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:56,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:53:56,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:53:56,141 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:53:56,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 04:53:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:56,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 04:53:56,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:53:56,513 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:56,513 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:53:57,185 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:57,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427149388] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:53:57,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:53:57,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 25 [2024-10-14 04:53:57,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880922436] [2024-10-14 04:53:57,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:53:57,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-14 04:53:57,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:57,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-14 04:53:57,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=548, Unknown=0, NotChecked=0, Total=650 [2024-10-14 04:53:57,188 INFO L87 Difference]: Start difference. First operand 10442 states and 14011 transitions. Second operand has 26 states, 26 states have (on average 7.230769230769231) internal successors, (188), 25 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:57,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:53:57,834 INFO L93 Difference]: Finished difference Result 17499 states and 23073 transitions. [2024-10-14 04:53:57,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:53:57,837 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 7.230769230769231) internal successors, (188), 25 states have internal predecessors, (188), 0 states have call successors, (0), 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 71 [2024-10-14 04:53:57,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:53:57,848 INFO L225 Difference]: With dead ends: 17499 [2024-10-14 04:53:57,849 INFO L226 Difference]: Without dead ends: 10818 [2024-10-14 04:53:57,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2024-10-14 04:53:57,857 INFO L432 NwaCegarLoop]: 1500 mSDtfsCounter, 13558 mSDsluCounter, 4677 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13558 SdHoareTripleChecker+Valid, 6177 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:53:57,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13558 Valid, 6177 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:53:57,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10818 states. [2024-10-14 04:53:58,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10818 to 10070. [2024-10-14 04:53:58,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10070 states, 10068 states have (on average 1.3287644020659515) internal successors, (13378), 10069 states have internal predecessors, (13378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:58,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10070 states to 10070 states and 13378 transitions. [2024-10-14 04:53:58,091 INFO L78 Accepts]: Start accepts. Automaton has 10070 states and 13378 transitions. Word has length 71 [2024-10-14 04:53:58,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:53:58,091 INFO L471 AbstractCegarLoop]: Abstraction has 10070 states and 13378 transitions. [2024-10-14 04:53:58,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 7.230769230769231) internal successors, (188), 25 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:53:58,091 INFO L276 IsEmpty]: Start isEmpty. Operand 10070 states and 13378 transitions. [2024-10-14 04:53:58,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-14 04:53:58,092 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:53:58,092 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:53:58,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 04:53:58,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:53:58,297 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:53:58,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:53:58,297 INFO L85 PathProgramCache]: Analyzing trace with hash 617396414, now seen corresponding path program 1 times [2024-10-14 04:53:58,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:53:58,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974499851] [2024-10-14 04:53:58,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:58,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:53:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:59,105 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:59,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:53:59,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974499851] [2024-10-14 04:53:59,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974499851] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:53:59,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630434885] [2024-10-14 04:53:59,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:53:59,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:53:59,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:53:59,107 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:53:59,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 04:53:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:53:59,184 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 04:53:59,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:53:59,488 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:59,488 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:53:59,929 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:53:59,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630434885] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:53:59,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:53:59,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-10-14 04:53:59,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157100423] [2024-10-14 04:53:59,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:53:59,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-14 04:53:59,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:53:59,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-14 04:53:59,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756 [2024-10-14 04:53:59,931 INFO L87 Difference]: Start difference. First operand 10070 states and 13378 transitions. Second operand has 28 states, 28 states have (on average 6.571428571428571) internal successors, (184), 27 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:54:01,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:54:01,437 INFO L93 Difference]: Finished difference Result 26736 states and 34477 transitions. [2024-10-14 04:54:01,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-14 04:54:01,437 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.571428571428571) internal successors, (184), 27 states have internal predecessors, (184), 0 states have call successors, (0), 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 71 [2024-10-14 04:54:01,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:54:01,455 INFO L225 Difference]: With dead ends: 26736 [2024-10-14 04:54:01,455 INFO L226 Difference]: Without dead ends: 19391 [2024-10-14 04:54:01,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=502, Invalid=1850, Unknown=0, NotChecked=0, Total=2352 [2024-10-14 04:54:01,465 INFO L432 NwaCegarLoop]: 1510 mSDtfsCounter, 15597 mSDsluCounter, 5000 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15597 SdHoareTripleChecker+Valid, 6510 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 04:54:01,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15597 Valid, 6510 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 04:54:01,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19391 states. [2024-10-14 04:54:01,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19391 to 19340. [2024-10-14 04:54:02,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19340 states, 19338 states have (on average 1.2894818492088116) internal successors, (24936), 19339 states have internal predecessors, (24936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:54:02,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19340 states to 19340 states and 24936 transitions. [2024-10-14 04:54:02,027 INFO L78 Accepts]: Start accepts. Automaton has 19340 states and 24936 transitions. Word has length 71 [2024-10-14 04:54:02,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:54:02,027 INFO L471 AbstractCegarLoop]: Abstraction has 19340 states and 24936 transitions. [2024-10-14 04:54:02,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.571428571428571) internal successors, (184), 27 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:54:02,028 INFO L276 IsEmpty]: Start isEmpty. Operand 19340 states and 24936 transitions. [2024-10-14 04:54:02,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-14 04:54:02,028 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:54:02,028 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:54:02,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 04:54:02,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:54:02,229 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:54:02,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:54:02,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1053335691, now seen corresponding path program 1 times [2024-10-14 04:54:02,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:54:02,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354074678] [2024-10-14 04:54:02,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:54:02,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:54:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:54:02,420 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:54:02,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:54:02,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354074678] [2024-10-14 04:54:02,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354074678] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:54:02,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139088240] [2024-10-14 04:54:02,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:54:02,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:54:02,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:54:02,422 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:54:02,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 04:54:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:54:02,505 INFO L255 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-14 04:54:02,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:54:02,966 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:54:02,967 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:54:03,616 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:54:03,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139088240] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:54:03,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:54:03,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2024-10-14 04:54:03,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973456422] [2024-10-14 04:54:03,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:54:03,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-14 04:54:03,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:54:03,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-14 04:54:03,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=887, Unknown=0, NotChecked=0, Total=992 [2024-10-14 04:54:03,618 INFO L87 Difference]: Start difference. First operand 19340 states and 24936 transitions. Second operand has 32 states, 32 states have (on average 5.84375) internal successors, (187), 32 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:54:05,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:54:05,751 INFO L93 Difference]: Finished difference Result 38661 states and 49238 transitions. [2024-10-14 04:54:05,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-10-14 04:54:05,752 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 5.84375) internal successors, (187), 32 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-10-14 04:54:05,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:54:05,775 INFO L225 Difference]: With dead ends: 38661 [2024-10-14 04:54:05,775 INFO L226 Difference]: Without dead ends: 22732 [2024-10-14 04:54:05,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=786, Invalid=3246, Unknown=0, NotChecked=0, Total=4032 [2024-10-14 04:54:05,791 INFO L432 NwaCegarLoop]: 1517 mSDtfsCounter, 16555 mSDsluCounter, 15432 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16555 SdHoareTripleChecker+Valid, 16949 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:54:05,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16555 Valid, 16949 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 04:54:05,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22732 states. [2024-10-14 04:54:06,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22732 to 18174. [2024-10-14 04:54:06,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18174 states, 18172 states have (on average 1.2808716707021792) internal successors, (23276), 18173 states have internal predecessors, (23276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:54:06,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18174 states to 18174 states and 23276 transitions. [2024-10-14 04:54:06,386 INFO L78 Accepts]: Start accepts. Automaton has 18174 states and 23276 transitions. Word has length 72 [2024-10-14 04:54:06,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:54:06,386 INFO L471 AbstractCegarLoop]: Abstraction has 18174 states and 23276 transitions. [2024-10-14 04:54:06,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 5.84375) internal successors, (187), 32 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:54:06,387 INFO L276 IsEmpty]: Start isEmpty. Operand 18174 states and 23276 transitions. [2024-10-14 04:54:06,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-14 04:54:06,387 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:54:06,387 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:54:06,400 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 04:54:06,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-14 04:54:06,588 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:54:06,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:54:06,589 INFO L85 PathProgramCache]: Analyzing trace with hash 2033955118, now seen corresponding path program 1 times [2024-10-14 04:54:06,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:54:06,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991035111] [2024-10-14 04:54:06,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:54:06,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:54:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:54:07,236 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:54:07,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:54:07,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991035111] [2024-10-14 04:54:07,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991035111] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:54:07,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091964595] [2024-10-14 04:54:07,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:54:07,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:54:07,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:54:07,238 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:54:07,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 04:54:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:54:07,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-14 04:54:07,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:54:07,921 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:54:07,921 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:54:09,019 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:54:09,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091964595] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:54:09,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:54:09,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 17] total 40 [2024-10-14 04:54:09,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529261366] [2024-10-14 04:54:09,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:54:09,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-10-14 04:54:09,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:54:09,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-10-14 04:54:09,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1390, Unknown=0, NotChecked=0, Total=1560 [2024-10-14 04:54:09,021 INFO L87 Difference]: Start difference. First operand 18174 states and 23276 transitions. Second operand has 40 states, 40 states have (on average 5.15) internal successors, (206), 40 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:54:15,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:54:15,402 INFO L93 Difference]: Finished difference Result 57294 states and 71838 transitions. [2024-10-14 04:54:15,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2024-10-14 04:54:15,402 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 5.15) internal successors, (206), 40 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-10-14 04:54:15,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:54:15,450 INFO L225 Difference]: With dead ends: 57294 [2024-10-14 04:54:15,450 INFO L226 Difference]: Without dead ends: 48552 [2024-10-14 04:54:15,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5747 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=3443, Invalid=13587, Unknown=0, NotChecked=0, Total=17030 [2024-10-14 04:54:15,466 INFO L432 NwaCegarLoop]: 1548 mSDtfsCounter, 17417 mSDsluCounter, 20590 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17417 SdHoareTripleChecker+Valid, 22138 SdHoareTripleChecker+Invalid, 2049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:54:15,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17417 Valid, 22138 Invalid, 2049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1973 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 04:54:15,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48552 states. [2024-10-14 04:54:16,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48552 to 23637. [2024-10-14 04:54:16,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23637 states, 23635 states have (on average 1.2615189337846415) internal successors, (29816), 23636 states have internal predecessors, (29816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:54:16,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23637 states to 23637 states and 29816 transitions. [2024-10-14 04:54:16,602 INFO L78 Accepts]: Start accepts. Automaton has 23637 states and 29816 transitions. Word has length 73 [2024-10-14 04:54:16,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:54:16,603 INFO L471 AbstractCegarLoop]: Abstraction has 23637 states and 29816 transitions. [2024-10-14 04:54:16,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 5.15) internal successors, (206), 40 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:54:16,603 INFO L276 IsEmpty]: Start isEmpty. Operand 23637 states and 29816 transitions. [2024-10-14 04:54:16,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-14 04:54:16,604 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:54:16,604 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:54:16,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-14 04:54:16,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:54:16,804 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:54:16,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:54:16,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1735720955, now seen corresponding path program 1 times [2024-10-14 04:54:16,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:54:16,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732462192] [2024-10-14 04:54:16,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:54:16,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:54:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:54:17,975 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:54:17,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:54:17,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732462192] [2024-10-14 04:54:17,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732462192] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:54:17,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69114053] [2024-10-14 04:54:17,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:54:17,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:54:17,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:54:17,977 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:54:17,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 04:54:18,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:54:18,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-10-14 04:54:18,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:54:19,097 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:54:19,097 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:54:21,190 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:54:21,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69114053] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:54:21,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:54:21,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 17, 18] total 57 [2024-10-14 04:54:21,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741946932] [2024-10-14 04:54:21,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:54:21,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-10-14 04:54:21,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:54:21,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-10-14 04:54:21,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=2924, Unknown=0, NotChecked=0, Total=3192 [2024-10-14 04:54:21,193 INFO L87 Difference]: Start difference. First operand 23637 states and 29816 transitions. Second operand has 57 states, 57 states have (on average 3.4210526315789473) internal successors, (195), 57 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:54:46,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:54:46,023 INFO L93 Difference]: Finished difference Result 68843 states and 85797 transitions. [2024-10-14 04:54:46,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2024-10-14 04:54:46,024 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 3.4210526315789473) internal successors, (195), 57 states have internal predecessors, (195), 0 states have call successors, (0), 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 [2024-10-14 04:54:46,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:54:46,161 INFO L225 Difference]: With dead ends: 68843 [2024-10-14 04:54:46,161 INFO L226 Difference]: Without dead ends: 57198 [2024-10-14 04:54:46,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11825 ImplicationChecksByTransitivity, 19.6s TimeCoverageRelationStatistics Valid=6391, Invalid=29519, Unknown=0, NotChecked=0, Total=35910 [2024-10-14 04:54:46,174 INFO L432 NwaCegarLoop]: 1593 mSDtfsCounter, 32345 mSDsluCounter, 26215 mSDsCounter, 0 mSdLazyCounter, 7600 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32345 SdHoareTripleChecker+Valid, 27808 SdHoareTripleChecker+Invalid, 7737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 7600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-10-14 04:54:46,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32345 Valid, 27808 Invalid, 7737 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [137 Valid, 7600 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-10-14 04:54:46,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57198 states. [2024-10-14 04:54:47,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57198 to 19728. [2024-10-14 04:54:47,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19728 states, 19726 states have (on average 1.2747135759910777) internal successors, (25145), 19727 states have internal predecessors, (25145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:54:47,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19728 states to 19728 states and 25145 transitions. [2024-10-14 04:54:47,204 INFO L78 Accepts]: Start accepts. Automaton has 19728 states and 25145 transitions. Word has length 74 [2024-10-14 04:54:47,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:54:47,204 INFO L471 AbstractCegarLoop]: Abstraction has 19728 states and 25145 transitions. [2024-10-14 04:54:47,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 3.4210526315789473) internal successors, (195), 57 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:54:47,204 INFO L276 IsEmpty]: Start isEmpty. Operand 19728 states and 25145 transitions. [2024-10-14 04:54:47,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-14 04:54:47,207 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:54:47,207 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-10-14 04:54:47,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-14 04:54:47,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:54:47,408 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:54:47,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:54:47,408 INFO L85 PathProgramCache]: Analyzing trace with hash 918425501, now seen corresponding path program 1 times [2024-10-14 04:54:47,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:54:47,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326263671] [2024-10-14 04:54:47,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:54:47,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:54:47,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:54:48,050 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 36 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:54:48,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:54:48,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326263671] [2024-10-14 04:54:48,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326263671] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:54:48,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97202537] [2024-10-14 04:54:48,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:54:48,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:54:48,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:54:48,052 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:54:48,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 04:54:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:54:48,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-14 04:54:48,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:54:48,800 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 23 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:54:48,800 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:54:50,053 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 19 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:54:50,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97202537] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:54:50,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:54:50,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 35 [2024-10-14 04:54:50,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980621486] [2024-10-14 04:54:50,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:54:50,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-10-14 04:54:50,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:54:50,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-10-14 04:54:50,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1134, Unknown=0, NotChecked=0, Total=1260 [2024-10-14 04:54:50,055 INFO L87 Difference]: Start difference. First operand 19728 states and 25145 transitions. Second operand has 36 states, 36 states have (on average 9.277777777777779) internal successors, (334), 35 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)