./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label24.c --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for ERROR reachability
Using default analysis
Version c7c6ca5d
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/eca-rers2012/Problem11_label24.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 63c3a28a771a7642d2d01d4b50ea8f0914adef37135dc9c64a20524a1e6d797b
--- Real Ultimate output ---
This is Ultimate 0.2.5-?-c7c6ca5-m
[2024-11-08 11:11:02,335 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-08 11:11:02,403 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-08 11:11:02,407 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 11:11:02,408 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 11:11:02,448 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 11:11:02,448 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 11:11:02,449 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 11:11:02,450 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 11:11:02,451 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-08 11:11:02,451 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 11:11:02,451 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 11:11:02,452 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 11:11:02,452 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-08 11:11:02,454 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-08 11:11:02,455 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 11:11:02,455 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-08 11:11:02,455 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-08 11:11:02,455 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-08 11:11:02,456 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-08 11:11:02,456 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-08 11:11:02,458 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 11:11:02,459 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 11:11:02,459 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 11:11:02,459 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-08 11:11:02,459 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-08 11:11:02,459 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-08 11:11:02,460 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-08 11:11:02,460 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 11:11:02,460 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-08 11:11:02,461 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 11:11:02,461 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-08 11:11:02,461 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 11:11:02,461 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 11:11:02,462 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 11:11:02,462 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 11:11:02,462 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-08 11:11:02,464 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 11:11:02,464 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 11:11:02,464 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 11:11:02,464 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 11:11:02,465 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 11:11:02,465 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 -> 63c3a28a771a7642d2d01d4b50ea8f0914adef37135dc9c64a20524a1e6d797b
[2024-11-08 11:11:02,728 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 11:11:02,753 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 11:11:02,756 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 11:11:02,757 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-08 11:11:02,757 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-08 11:11:02,758 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label24.c
[2024-11-08 11:11:04,175 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-08 11:11:04,465 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-08 11:11:04,466 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label24.c
[2024-11-08 11:11:04,481 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1db85241/9c591b65e2174e1cbd1d217a774ce640/FLAGe95305f01
[2024-11-08 11:11:04,497 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1db85241/9c591b65e2174e1cbd1d217a774ce640
[2024-11-08 11:11:04,501 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 11:11:04,503 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 11:11:04,505 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 11:11:04,506 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 11:11:04,511 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 11:11:04,511 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:11:04" (1/1) ...
[2024-11-08 11:11:04,512 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20dc60a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:04, skipping insertion in model container
[2024-11-08 11:11:04,513 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:11:04" (1/1) ...
[2024-11-08 11:11:04,569 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-08 11:11:04,842 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label24.c[7451,7464]
[2024-11-08 11:11:05,049 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 11:11:05,059 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-08 11:11:05,101 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label24.c[7451,7464]
[2024-11-08 11:11:05,225 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 11:11:05,247 INFO  L204         MainTranslator]: Completed translation
[2024-11-08 11:11:05,247 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:05 WrapperNode
[2024-11-08 11:11:05,247 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 11:11:05,248 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 11:11:05,273 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 11:11:05,273 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 11:11:05,282 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:05" (1/1) ...
[2024-11-08 11:11:05,309 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:05" (1/1) ...
[2024-11-08 11:11:05,423 INFO  L138                Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1000
[2024-11-08 11:11:05,424 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 11:11:05,424 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 11:11:05,425 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 11:11:05,425 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 11:11:05,436 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:05" (1/1) ...
[2024-11-08 11:11:05,436 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:05" (1/1) ...
[2024-11-08 11:11:05,450 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:05" (1/1) ...
[2024-11-08 11:11:05,508 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-08 11:11:05,509 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:05" (1/1) ...
[2024-11-08 11:11:05,509 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:05" (1/1) ...
[2024-11-08 11:11:05,556 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:05" (1/1) ...
[2024-11-08 11:11:05,568 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:05" (1/1) ...
[2024-11-08 11:11:05,591 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:05" (1/1) ...
[2024-11-08 11:11:05,599 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:05" (1/1) ...
[2024-11-08 11:11:05,616 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 11:11:05,617 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 11:11:05,619 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 11:11:05,619 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-08 11:11:05,620 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:05" (1/1) ...
[2024-11-08 11:11:05,625 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 11:11:05,636 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 11:11:05,653 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 11:11:05,658 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 11:11:05,704 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 11:11:05,705 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 11:11:05,706 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 11:11:05,706 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 11:11:05,779 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-08 11:11:05,781 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 11:11:07,368 INFO  L?                        ?]: Removed 129 outVars from TransFormulas that were not future-live.
[2024-11-08 11:11:07,369 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-08 11:11:07,396 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 11:11:07,397 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-08 11:11:07,397 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:11:07 BoogieIcfgContainer
[2024-11-08 11:11:07,397 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 11:11:07,400 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 11:11:07,400 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 11:11:07,404 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-08 11:11:07,405 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:11:04" (1/3) ...
[2024-11-08 11:11:07,406 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f335166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:11:07, skipping insertion in model container
[2024-11-08 11:11:07,406 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:05" (2/3) ...
[2024-11-08 11:11:07,407 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f335166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:11:07, skipping insertion in model container
[2024-11-08 11:11:07,407 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:11:07" (3/3) ...
[2024-11-08 11:11:07,408 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem11_label24.c
[2024-11-08 11:11:07,428 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 11:11:07,429 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 11:11:07,505 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 11:11:07,514 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;@4e3d94e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 11:11:07,515 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 11:11:07,522 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:07,530 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2024-11-08 11:11:07,530 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:07,531 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]
[2024-11-08 11:11:07,532 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:07,538 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:07,538 INFO  L85        PathProgramCache]: Analyzing trace with hash 2122806209, now seen corresponding path program 1 times
[2024-11-08 11:11:07,584 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:07,584 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711018745]
[2024-11-08 11:11:07,585 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:07,585 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:07,738 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:07,966 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:11:07,966 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:07,966 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711018745]
[2024-11-08 11:11:07,969 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711018745] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:07,969 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:07,969 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:11:07,971 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218491560]
[2024-11-08 11:11:07,972 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:07,977 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:11:07,977 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:07,998 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:11:07,999 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:08,002 INFO  L87              Difference]: Start difference. First operand  has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:09,022 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:09,023 INFO  L93              Difference]: Finished difference Result 776 states and 1363 transitions.
[2024-11-08 11:11:09,024 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:11:09,026 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 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 51
[2024-11-08 11:11:09,026 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:09,038 INFO  L225             Difference]: With dead ends: 776
[2024-11-08 11:11:09,038 INFO  L226             Difference]: Without dead ends: 413
[2024-11-08 11:11:09,043 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:09,046 INFO  L432           NwaCegarLoop]: 168 mSDtfsCounter, 176 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:09,048 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 196 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-08 11:11:09,068 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 413 states.
[2024-11-08 11:11:09,122 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 411.
[2024-11-08 11:11:09,128 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 411 states, 410 states have (on average 1.4585365853658536) internal successors, (598), 410 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:09,130 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 598 transitions.
[2024-11-08 11:11:09,131 INFO  L78                 Accepts]: Start accepts. Automaton has 411 states and 598 transitions. Word has length 51
[2024-11-08 11:11:09,132 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:09,132 INFO  L471      AbstractCegarLoop]: Abstraction has 411 states and 598 transitions.
[2024-11-08 11:11:09,132 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:09,133 INFO  L276                IsEmpty]: Start isEmpty. Operand 411 states and 598 transitions.
[2024-11-08 11:11:09,135 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 120
[2024-11-08 11:11:09,136 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:09,136 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 11:11:09,136 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 11:11:09,136 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:09,137 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:09,137 INFO  L85        PathProgramCache]: Analyzing trace with hash 1424628072, now seen corresponding path program 1 times
[2024-11-08 11:11:09,137 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:09,137 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977151167]
[2024-11-08 11:11:09,137 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:09,138 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:09,183 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:09,367 INFO  L134       CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:11:09,368 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:09,368 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977151167]
[2024-11-08 11:11:09,368 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977151167] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:09,368 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:09,368 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:11:09,368 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366606682]
[2024-11-08 11:11:09,368 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:09,370 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:11:09,370 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:09,373 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:11:09,373 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:09,374 INFO  L87              Difference]: Start difference. First operand 411 states and 598 transitions. Second operand  has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:10,186 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:10,187 INFO  L93              Difference]: Finished difference Result 1209 states and 1765 transitions.
[2024-11-08 11:11:10,187 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:11:10,188 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 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 119
[2024-11-08 11:11:10,188 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:10,193 INFO  L225             Difference]: With dead ends: 1209
[2024-11-08 11:11:10,193 INFO  L226             Difference]: Without dead ends: 800
[2024-11-08 11:11:10,195 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:10,197 INFO  L432           NwaCegarLoop]: 102 mSDtfsCounter, 144 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:10,197 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 120 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 11:11:10,199 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 800 states.
[2024-11-08 11:11:10,237 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 787.
[2024-11-08 11:11:10,238 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 787 states, 786 states have (on average 1.3854961832061068) internal successors, (1089), 786 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:10,241 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1089 transitions.
[2024-11-08 11:11:10,244 INFO  L78                 Accepts]: Start accepts. Automaton has 787 states and 1089 transitions. Word has length 119
[2024-11-08 11:11:10,244 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:10,244 INFO  L471      AbstractCegarLoop]: Abstraction has 787 states and 1089 transitions.
[2024-11-08 11:11:10,245 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:10,245 INFO  L276                IsEmpty]: Start isEmpty. Operand 787 states and 1089 transitions.
[2024-11-08 11:11:10,247 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2024-11-08 11:11:10,247 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:10,247 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 11:11:10,247 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 11:11:10,248 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:10,248 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:10,248 INFO  L85        PathProgramCache]: Analyzing trace with hash 1033925576, now seen corresponding path program 1 times
[2024-11-08 11:11:10,249 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:10,249 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195521395]
[2024-11-08 11:11:10,249 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:10,249 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:10,312 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:10,620 INFO  L134       CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:11:10,621 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:10,621 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195521395]
[2024-11-08 11:11:10,621 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195521395] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:10,621 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:10,621 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:11:10,621 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100040797]
[2024-11-08 11:11:10,621 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:10,622 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:11:10,622 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:10,622 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:11:10,623 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:10,623 INFO  L87              Difference]: Start difference. First operand 787 states and 1089 transitions. Second operand  has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:11,330 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:11,330 INFO  L93              Difference]: Finished difference Result 1942 states and 2631 transitions.
[2024-11-08 11:11:11,331 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:11:11,331 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 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 120
[2024-11-08 11:11:11,332 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:11,335 INFO  L225             Difference]: With dead ends: 1942
[2024-11-08 11:11:11,336 INFO  L226             Difference]: Without dead ends: 1157
[2024-11-08 11:11:11,337 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:11,338 INFO  L432           NwaCegarLoop]: 168 mSDtfsCounter, 120 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:11,339 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 190 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 11:11:11,341 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1157 states.
[2024-11-08 11:11:11,358 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1156.
[2024-11-08 11:11:11,360 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1156 states, 1155 states have (on average 1.277922077922078) internal successors, (1476), 1155 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:11,363 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1476 transitions.
[2024-11-08 11:11:11,363 INFO  L78                 Accepts]: Start accepts. Automaton has 1156 states and 1476 transitions. Word has length 120
[2024-11-08 11:11:11,364 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:11,364 INFO  L471      AbstractCegarLoop]: Abstraction has 1156 states and 1476 transitions.
[2024-11-08 11:11:11,364 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:11,364 INFO  L276                IsEmpty]: Start isEmpty. Operand 1156 states and 1476 transitions.
[2024-11-08 11:11:11,366 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 164
[2024-11-08 11:11:11,366 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:11,367 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:11:11,367 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 11:11:11,367 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:11,368 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:11,368 INFO  L85        PathProgramCache]: Analyzing trace with hash -289166940, now seen corresponding path program 1 times
[2024-11-08 11:11:11,368 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:11,368 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719796304]
[2024-11-08 11:11:11,369 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:11,369 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:11,409 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:11,579 INFO  L134       CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:11:11,582 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:11,582 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719796304]
[2024-11-08 11:11:11,582 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719796304] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:11,583 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:11,583 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:11:11,583 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002762520]
[2024-11-08 11:11:11,583 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:11,583 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:11:11,584 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:11,584 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:11:11,584 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:11,585 INFO  L87              Difference]: Start difference. First operand 1156 states and 1476 transitions. Second operand  has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:12,367 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:12,367 INFO  L93              Difference]: Finished difference Result 2691 states and 3515 transitions.
[2024-11-08 11:11:12,368 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:11:12,368 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 163
[2024-11-08 11:11:12,370 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:12,375 INFO  L225             Difference]: With dead ends: 2691
[2024-11-08 11:11:12,375 INFO  L226             Difference]: Without dead ends: 1721
[2024-11-08 11:11:12,378 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:12,380 INFO  L432           NwaCegarLoop]: 315 mSDtfsCounter, 155 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:12,380 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 336 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 11:11:12,382 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1721 states.
[2024-11-08 11:11:12,401 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1528.
[2024-11-08 11:11:12,403 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1528 states, 1527 states have (on average 1.261296660117878) internal successors, (1926), 1527 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:12,407 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 1926 transitions.
[2024-11-08 11:11:12,408 INFO  L78                 Accepts]: Start accepts. Automaton has 1528 states and 1926 transitions. Word has length 163
[2024-11-08 11:11:12,408 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:12,408 INFO  L471      AbstractCegarLoop]: Abstraction has 1528 states and 1926 transitions.
[2024-11-08 11:11:12,409 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:12,409 INFO  L276                IsEmpty]: Start isEmpty. Operand 1528 states and 1926 transitions.
[2024-11-08 11:11:12,410 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 179
[2024-11-08 11:11:12,411 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:12,411 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:11:12,411 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 11:11:12,411 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:12,411 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:12,412 INFO  L85        PathProgramCache]: Analyzing trace with hash -933543605, now seen corresponding path program 1 times
[2024-11-08 11:11:12,412 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:12,412 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908679652]
[2024-11-08 11:11:12,412 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:12,413 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:12,469 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:12,612 INFO  L134       CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:11:12,612 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:12,613 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908679652]
[2024-11-08 11:11:12,613 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908679652] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:12,613 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:12,613 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:11:12,614 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470897812]
[2024-11-08 11:11:12,614 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:12,614 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:11:12,615 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:12,615 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:11:12,615 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:12,616 INFO  L87              Difference]: Start difference. First operand 1528 states and 1926 transitions. Second operand  has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:13,388 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:13,388 INFO  L93              Difference]: Finished difference Result 4158 states and 5316 transitions.
[2024-11-08 11:11:13,388 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:11:13,389 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 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 178
[2024-11-08 11:11:13,389 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:13,398 INFO  L225             Difference]: With dead ends: 4158
[2024-11-08 11:11:13,398 INFO  L226             Difference]: Without dead ends: 2632
[2024-11-08 11:11:13,401 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:13,402 INFO  L432           NwaCegarLoop]: 131 mSDtfsCounter, 115 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:13,402 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 155 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 11:11:13,405 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2632 states.
[2024-11-08 11:11:13,435 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 2448.
[2024-11-08 11:11:13,438 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2448 states, 2447 states have (on average 1.2174090723334696) internal successors, (2979), 2447 states have internal predecessors, (2979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:13,442 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 2979 transitions.
[2024-11-08 11:11:13,442 INFO  L78                 Accepts]: Start accepts. Automaton has 2448 states and 2979 transitions. Word has length 178
[2024-11-08 11:11:13,443 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:13,443 INFO  L471      AbstractCegarLoop]: Abstraction has 2448 states and 2979 transitions.
[2024-11-08 11:11:13,443 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:13,444 INFO  L276                IsEmpty]: Start isEmpty. Operand 2448 states and 2979 transitions.
[2024-11-08 11:11:13,446 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 195
[2024-11-08 11:11:13,446 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:13,446 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:11:13,446 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-08 11:11:13,447 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:13,447 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:13,447 INFO  L85        PathProgramCache]: Analyzing trace with hash -1329847317, now seen corresponding path program 1 times
[2024-11-08 11:11:13,447 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:13,448 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370414441]
[2024-11-08 11:11:13,448 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:13,448 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:13,489 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:13,670 INFO  L134       CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked.
[2024-11-08 11:11:13,671 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:13,671 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370414441]
[2024-11-08 11:11:13,671 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370414441] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:13,671 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:13,671 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:11:13,671 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661571540]
[2024-11-08 11:11:13,673 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:13,673 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:11:13,673 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:13,674 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:11:13,674 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:13,674 INFO  L87              Difference]: Start difference. First operand 2448 states and 2979 transitions. Second operand  has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:14,294 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:14,295 INFO  L93              Difference]: Finished difference Result 5452 states and 6620 transitions.
[2024-11-08 11:11:14,295 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:11:14,296 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 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 194
[2024-11-08 11:11:14,296 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:14,308 INFO  L225             Difference]: With dead ends: 5452
[2024-11-08 11:11:14,308 INFO  L226             Difference]: Without dead ends: 3006
[2024-11-08 11:11:14,311 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:14,313 INFO  L432           NwaCegarLoop]: 126 mSDtfsCounter, 75 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:14,314 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 154 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 11:11:14,317 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3006 states.
[2024-11-08 11:11:14,349 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 3005.
[2024-11-08 11:11:14,353 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3005 states, 3004 states have (on average 1.2113848202396804) internal successors, (3639), 3004 states have internal predecessors, (3639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:14,358 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3005 states to 3005 states and 3639 transitions.
[2024-11-08 11:11:14,359 INFO  L78                 Accepts]: Start accepts. Automaton has 3005 states and 3639 transitions. Word has length 194
[2024-11-08 11:11:14,359 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:14,359 INFO  L471      AbstractCegarLoop]: Abstraction has 3005 states and 3639 transitions.
[2024-11-08 11:11:14,360 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:14,360 INFO  L276                IsEmpty]: Start isEmpty. Operand 3005 states and 3639 transitions.
[2024-11-08 11:11:14,362 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 233
[2024-11-08 11:11:14,362 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:14,363 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:11:14,363 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-08 11:11:14,363 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:14,364 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:14,364 INFO  L85        PathProgramCache]: Analyzing trace with hash 1440418757, now seen corresponding path program 1 times
[2024-11-08 11:11:14,364 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:14,364 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658690490]
[2024-11-08 11:11:14,364 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:14,364 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:14,425 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:14,900 INFO  L134       CoverageAnalysis]: Checked inductivity of 165 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:11:14,900 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:14,900 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658690490]
[2024-11-08 11:11:14,900 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658690490] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:14,900 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:14,901 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 11:11:14,901 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415558135]
[2024-11-08 11:11:14,901 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:14,901 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 11:11:14,902 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:14,903 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 11:11:14,903 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:11:14,903 INFO  L87              Difference]: Start difference. First operand 3005 states and 3639 transitions. Second operand  has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:16,320 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:16,320 INFO  L93              Difference]: Finished difference Result 8783 states and 10795 transitions.
[2024-11-08 11:11:16,321 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 11:11:16,321 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 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 232
[2024-11-08 11:11:16,322 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:16,341 INFO  L225             Difference]: With dead ends: 8783
[2024-11-08 11:11:16,341 INFO  L226             Difference]: Without dead ends: 5780
[2024-11-08 11:11:16,346 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:11:16,347 INFO  L432           NwaCegarLoop]: 80 mSDtfsCounter, 319 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:16,348 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 119 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-11-08 11:11:16,354 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5780 states.
[2024-11-08 11:11:16,423 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5780 to 5404.
[2024-11-08 11:11:16,431 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5404 states, 5403 states have (on average 1.2121043864519712) internal successors, (6549), 5403 states have internal predecessors, (6549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:16,440 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5404 states to 5404 states and 6549 transitions.
[2024-11-08 11:11:16,440 INFO  L78                 Accepts]: Start accepts. Automaton has 5404 states and 6549 transitions. Word has length 232
[2024-11-08 11:11:16,441 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:16,441 INFO  L471      AbstractCegarLoop]: Abstraction has 5404 states and 6549 transitions.
[2024-11-08 11:11:16,441 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:16,441 INFO  L276                IsEmpty]: Start isEmpty. Operand 5404 states and 6549 transitions.
[2024-11-08 11:11:16,444 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 234
[2024-11-08 11:11:16,444 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:16,444 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:11:16,445 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-08 11:11:16,445 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:16,445 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:16,445 INFO  L85        PathProgramCache]: Analyzing trace with hash -1400544816, now seen corresponding path program 1 times
[2024-11-08 11:11:16,446 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:16,446 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161876534]
[2024-11-08 11:11:16,446 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:16,446 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:16,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:16,706 INFO  L134       CoverageAnalysis]: Checked inductivity of 166 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked.
[2024-11-08 11:11:16,706 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:16,706 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161876534]
[2024-11-08 11:11:16,708 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161876534] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:16,708 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:16,708 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:11:16,709 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523249900]
[2024-11-08 11:11:16,709 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:16,710 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:11:16,710 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:16,710 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:11:16,711 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:16,711 INFO  L87              Difference]: Start difference. First operand 5404 states and 6549 transitions. Second operand  has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:17,545 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:17,546 INFO  L93              Difference]: Finished difference Result 11919 states and 14623 transitions.
[2024-11-08 11:11:17,546 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:11:17,547 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 233
[2024-11-08 11:11:17,547 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:17,569 INFO  L225             Difference]: With dead ends: 11919
[2024-11-08 11:11:17,569 INFO  L226             Difference]: Without dead ends: 6885
[2024-11-08 11:11:17,577 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:17,578 INFO  L432           NwaCegarLoop]: 369 mSDtfsCounter, 146 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:17,578 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 390 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 11:11:17,587 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6885 states.
[2024-11-08 11:11:17,661 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6885 to 6692.
[2024-11-08 11:11:17,670 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6692 states, 6691 states have (on average 1.1927962935286205) internal successors, (7981), 6691 states have internal predecessors, (7981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:17,681 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6692 states to 6692 states and 7981 transitions.
[2024-11-08 11:11:17,683 INFO  L78                 Accepts]: Start accepts. Automaton has 6692 states and 7981 transitions. Word has length 233
[2024-11-08 11:11:17,683 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:17,684 INFO  L471      AbstractCegarLoop]: Abstraction has 6692 states and 7981 transitions.
[2024-11-08 11:11:17,684 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:17,684 INFO  L276                IsEmpty]: Start isEmpty. Operand 6692 states and 7981 transitions.
[2024-11-08 11:11:17,687 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 244
[2024-11-08 11:11:17,687 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:17,688 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:11:17,688 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-08 11:11:17,688 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:17,688 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:17,689 INFO  L85        PathProgramCache]: Analyzing trace with hash 826529202, now seen corresponding path program 1 times
[2024-11-08 11:11:17,689 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:17,689 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330514143]
[2024-11-08 11:11:17,689 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:17,689 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:17,738 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:18,043 INFO  L134       CoverageAnalysis]: Checked inductivity of 161 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:11:18,044 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:18,044 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330514143]
[2024-11-08 11:11:18,044 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330514143] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:18,044 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:18,044 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:11:18,044 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639616665]
[2024-11-08 11:11:18,045 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:18,046 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 11:11:18,046 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:18,046 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 11:11:18,047 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:11:18,047 INFO  L87              Difference]: Start difference. First operand 6692 states and 7981 transitions. Second operand  has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:19,322 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:19,322 INFO  L93              Difference]: Finished difference Result 14861 states and 17819 transitions.
[2024-11-08 11:11:19,323 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 11:11:19,323 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 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 243
[2024-11-08 11:11:19,324 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:19,348 INFO  L225             Difference]: With dead ends: 14861
[2024-11-08 11:11:19,349 INFO  L226             Difference]: Without dead ends: 8539
[2024-11-08 11:11:19,357 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:11:19,358 INFO  L432           NwaCegarLoop]: 104 mSDtfsCounter, 253 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:19,359 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 141 Invalid, 1354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-08 11:11:19,367 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8539 states.
[2024-11-08 11:11:19,455 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8539 to 8534.
[2024-11-08 11:11:19,472 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8534 states, 8533 states have (on average 1.1736786593226298) internal successors, (10015), 8533 states have internal predecessors, (10015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:19,486 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8534 states to 8534 states and 10015 transitions.
[2024-11-08 11:11:19,487 INFO  L78                 Accepts]: Start accepts. Automaton has 8534 states and 10015 transitions. Word has length 243
[2024-11-08 11:11:19,487 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:19,487 INFO  L471      AbstractCegarLoop]: Abstraction has 8534 states and 10015 transitions.
[2024-11-08 11:11:19,488 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:19,488 INFO  L276                IsEmpty]: Start isEmpty. Operand 8534 states and 10015 transitions.
[2024-11-08 11:11:19,492 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 254
[2024-11-08 11:11:19,493 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:19,494 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 11:11:19,494 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-08 11:11:19,494 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:19,494 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:19,498 INFO  L85        PathProgramCache]: Analyzing trace with hash -1535621630, now seen corresponding path program 1 times
[2024-11-08 11:11:19,498 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:19,498 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624285764]
[2024-11-08 11:11:19,499 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:19,499 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:19,549 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:19,763 INFO  L134       CoverageAnalysis]: Checked inductivity of 186 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked.
[2024-11-08 11:11:19,764 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:19,764 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624285764]
[2024-11-08 11:11:19,764 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624285764] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:19,764 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:19,765 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:11:19,765 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058141600]
[2024-11-08 11:11:19,765 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:19,765 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:11:19,766 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:19,766 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:11:19,766 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:19,766 INFO  L87              Difference]: Start difference. First operand 8534 states and 10015 transitions. Second operand  has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:20,532 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:20,533 INFO  L93              Difference]: Finished difference Result 18740 states and 22056 transitions.
[2024-11-08 11:11:20,533 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:11:20,537 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 253
[2024-11-08 11:11:20,538 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:20,573 INFO  L225             Difference]: With dead ends: 18740
[2024-11-08 11:11:20,573 INFO  L226             Difference]: Without dead ends: 10576
[2024-11-08 11:11:20,583 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:20,584 INFO  L432           NwaCegarLoop]: 170 mSDtfsCounter, 151 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:20,585 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 190 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 11:11:20,596 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10576 states.
[2024-11-08 11:11:20,685 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10576 to 10190.
[2024-11-08 11:11:20,698 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10190 states, 10189 states have (on average 1.1690057905584454) internal successors, (11911), 10189 states have internal predecessors, (11911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:20,713 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10190 states to 10190 states and 11911 transitions.
[2024-11-08 11:11:20,714 INFO  L78                 Accepts]: Start accepts. Automaton has 10190 states and 11911 transitions. Word has length 253
[2024-11-08 11:11:20,714 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:20,714 INFO  L471      AbstractCegarLoop]: Abstraction has 10190 states and 11911 transitions.
[2024-11-08 11:11:20,715 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:20,715 INFO  L276                IsEmpty]: Start isEmpty. Operand 10190 states and 11911 transitions.
[2024-11-08 11:11:20,725 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 282
[2024-11-08 11:11:20,726 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:20,726 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 11:11:20,726 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-08 11:11:20,727 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:20,727 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:20,728 INFO  L85        PathProgramCache]: Analyzing trace with hash 943642801, now seen corresponding path program 1 times
[2024-11-08 11:11:20,728 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:20,728 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166657869]
[2024-11-08 11:11:20,728 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:20,728 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:20,785 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:21,044 INFO  L134       CoverageAnalysis]: Checked inductivity of 199 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked.
[2024-11-08 11:11:21,045 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:21,045 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166657869]
[2024-11-08 11:11:21,045 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166657869] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:21,045 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:21,046 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:11:21,046 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266079867]
[2024-11-08 11:11:21,046 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:21,046 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:11:21,047 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:21,047 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:11:21,047 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:21,048 INFO  L87              Difference]: Start difference. First operand 10190 states and 11911 transitions. Second operand  has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:21,784 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:21,784 INFO  L93              Difference]: Finished difference Result 20567 states and 24033 transitions.
[2024-11-08 11:11:21,785 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:11:21,785 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 281
[2024-11-08 11:11:21,785 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:21,802 INFO  L225             Difference]: With dead ends: 20567
[2024-11-08 11:11:21,803 INFO  L226             Difference]: Without dead ends: 10563
[2024-11-08 11:11:21,813 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:21,814 INFO  L432           NwaCegarLoop]: 339 mSDtfsCounter, 150 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:21,815 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 361 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 11:11:21,825 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10563 states.
[2024-11-08 11:11:21,920 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10563 to 10557.
[2024-11-08 11:11:21,933 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10557 states, 10556 states have (on average 1.139920424403183) internal successors, (12033), 10556 states have internal predecessors, (12033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:21,947 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10557 states to 10557 states and 12033 transitions.
[2024-11-08 11:11:21,948 INFO  L78                 Accepts]: Start accepts. Automaton has 10557 states and 12033 transitions. Word has length 281
[2024-11-08 11:11:21,949 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:21,949 INFO  L471      AbstractCegarLoop]: Abstraction has 10557 states and 12033 transitions.
[2024-11-08 11:11:21,949 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:21,949 INFO  L276                IsEmpty]: Start isEmpty. Operand 10557 states and 12033 transitions.
[2024-11-08 11:11:21,958 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 315
[2024-11-08 11:11:21,958 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:21,958 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-08 11:11:21,959 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-08 11:11:21,959 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:21,959 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:21,959 INFO  L85        PathProgramCache]: Analyzing trace with hash -2146355781, now seen corresponding path program 1 times
[2024-11-08 11:11:21,960 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:21,960 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705633948]
[2024-11-08 11:11:21,960 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:21,960 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:22,045 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:22,266 INFO  L134       CoverageAnalysis]: Checked inductivity of 364 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked.
[2024-11-08 11:11:22,266 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:22,266 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705633948]
[2024-11-08 11:11:22,267 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705633948] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:22,267 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:22,267 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:11:22,267 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146028142]
[2024-11-08 11:11:22,267 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:22,268 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:11:22,268 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:22,268 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:11:22,269 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:22,269 INFO  L87              Difference]: Start difference. First operand 10557 states and 12033 transitions. Second operand  has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:22,938 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:22,939 INFO  L93              Difference]: Finished difference Result 23886 states and 27410 transitions.
[2024-11-08 11:11:22,939 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:11:22,940 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 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 314
[2024-11-08 11:11:22,940 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:22,963 INFO  L225             Difference]: With dead ends: 23886
[2024-11-08 11:11:22,964 INFO  L226             Difference]: Without dead ends: 13699
[2024-11-08 11:11:22,975 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:22,976 INFO  L432           NwaCegarLoop]: 112 mSDtfsCounter, 142 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:22,976 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 135 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 11:11:22,988 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13699 states.
[2024-11-08 11:11:23,184 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13699 to 13694.
[2024-11-08 11:11:23,201 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13694 states, 13693 states have (on average 1.1337179580807712) internal successors, (15524), 13693 states have internal predecessors, (15524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:23,219 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13694 states to 13694 states and 15524 transitions.
[2024-11-08 11:11:23,219 INFO  L78                 Accepts]: Start accepts. Automaton has 13694 states and 15524 transitions. Word has length 314
[2024-11-08 11:11:23,220 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:23,220 INFO  L471      AbstractCegarLoop]: Abstraction has 13694 states and 15524 transitions.
[2024-11-08 11:11:23,220 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:23,220 INFO  L276                IsEmpty]: Start isEmpty. Operand 13694 states and 15524 transitions.
[2024-11-08 11:11:23,230 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 323
[2024-11-08 11:11:23,230 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:23,231 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:11:23,231 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-08 11:11:23,231 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:23,232 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:23,232 INFO  L85        PathProgramCache]: Analyzing trace with hash 263747274, now seen corresponding path program 1 times
[2024-11-08 11:11:23,232 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:23,232 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427721991]
[2024-11-08 11:11:23,232 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:23,233 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:23,290 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:23,560 INFO  L134       CoverageAnalysis]: Checked inductivity of 353 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked.
[2024-11-08 11:11:23,564 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:23,564 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427721991]
[2024-11-08 11:11:23,564 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427721991] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:23,564 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:23,565 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:11:23,565 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120131650]
[2024-11-08 11:11:23,565 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:23,565 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:11:23,565 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:23,566 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:11:23,566 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:23,566 INFO  L87              Difference]: Start difference. First operand 13694 states and 15524 transitions. Second operand  has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:24,288 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:24,288 INFO  L93              Difference]: Finished difference Result 30517 states and 34553 transitions.
[2024-11-08 11:11:24,289 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:11:24,289 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 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 322
[2024-11-08 11:11:24,290 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:24,315 INFO  L225             Difference]: With dead ends: 30517
[2024-11-08 11:11:24,315 INFO  L226             Difference]: Without dead ends: 17193
[2024-11-08 11:11:24,332 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:24,333 INFO  L432           NwaCegarLoop]: 65 mSDtfsCounter, 156 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:24,333 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 73 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 11:11:24,345 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17193 states.
[2024-11-08 11:11:24,484 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17193 to 17190.
[2024-11-08 11:11:24,499 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17190 states, 17189 states have (on average 1.1226365698993543) internal successors, (19297), 17189 states have internal predecessors, (19297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:24,521 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17190 states to 17190 states and 19297 transitions.
[2024-11-08 11:11:24,522 INFO  L78                 Accepts]: Start accepts. Automaton has 17190 states and 19297 transitions. Word has length 322
[2024-11-08 11:11:24,523 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:24,523 INFO  L471      AbstractCegarLoop]: Abstraction has 17190 states and 19297 transitions.
[2024-11-08 11:11:24,523 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:24,523 INFO  L276                IsEmpty]: Start isEmpty. Operand 17190 states and 19297 transitions.
[2024-11-08 11:11:24,532 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 325
[2024-11-08 11:11:24,532 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:24,533 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:11:24,533 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-08 11:11:24,533 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:24,534 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:24,534 INFO  L85        PathProgramCache]: Analyzing trace with hash -379447870, now seen corresponding path program 1 times
[2024-11-08 11:11:24,534 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:24,534 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662290069]
[2024-11-08 11:11:24,534 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:24,534 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:24,592 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:25,602 INFO  L134       CoverageAnalysis]: Checked inductivity of 364 backedges. 227 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:11:25,603 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:25,603 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662290069]
[2024-11-08 11:11:25,603 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662290069] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 11:11:25,603 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700656118]
[2024-11-08 11:11:25,604 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:25,604 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 11:11:25,604 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 11:11:25,606 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 11:11:25,607 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 11:11:25,754 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:25,757 INFO  L255         TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 11:11:25,770 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 11:11:26,065 INFO  L134       CoverageAnalysis]: Checked inductivity of 364 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked.
[2024-11-08 11:11:26,065 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 11:11:26,065 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700656118] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:26,066 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 11:11:26,066 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7
[2024-11-08 11:11:26,066 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461342654]
[2024-11-08 11:11:26,066 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:26,067 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:11:26,067 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:26,067 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:11:26,068 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-08 11:11:26,068 INFO  L87              Difference]: Start difference. First operand 17190 states and 19297 transitions. Second operand  has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:26,819 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:26,820 INFO  L93              Difference]: Finished difference Result 35504 states and 40039 transitions.
[2024-11-08 11:11:26,820 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:11:26,820 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 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 324
[2024-11-08 11:11:26,821 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:26,845 INFO  L225             Difference]: With dead ends: 35504
[2024-11-08 11:11:26,845 INFO  L226             Difference]: Without dead ends: 18684
[2024-11-08 11:11:26,859 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-08 11:11:26,860 INFO  L432           NwaCegarLoop]: 338 mSDtfsCounter, 137 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:26,860 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 359 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 11:11:26,874 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 18684 states.
[2024-11-08 11:11:27,028 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 18684 to 18676.
[2024-11-08 11:11:27,044 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18676 states, 18675 states have (on average 1.121178045515395) internal successors, (20938), 18675 states have internal predecessors, (20938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:27,065 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18676 states to 18676 states and 20938 transitions.
[2024-11-08 11:11:27,066 INFO  L78                 Accepts]: Start accepts. Automaton has 18676 states and 20938 transitions. Word has length 324
[2024-11-08 11:11:27,067 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:27,067 INFO  L471      AbstractCegarLoop]: Abstraction has 18676 states and 20938 transitions.
[2024-11-08 11:11:27,067 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:27,067 INFO  L276                IsEmpty]: Start isEmpty. Operand 18676 states and 20938 transitions.
[2024-11-08 11:11:27,076 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 327
[2024-11-08 11:11:27,076 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:27,076 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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]
[2024-11-08 11:11:27,095 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-08 11:11:27,277 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2024-11-08 11:11:27,277 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:27,278 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:27,278 INFO  L85        PathProgramCache]: Analyzing trace with hash -56733327, now seen corresponding path program 1 times
[2024-11-08 11:11:27,278 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:27,278 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429509948]
[2024-11-08 11:11:27,278 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:27,278 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:27,342 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:27,553 INFO  L134       CoverageAnalysis]: Checked inductivity of 380 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked.
[2024-11-08 11:11:27,553 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:27,554 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429509948]
[2024-11-08 11:11:27,554 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429509948] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:27,554 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:27,554 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:11:27,556 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118653524]
[2024-11-08 11:11:27,556 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:27,557 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:11:27,557 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:27,557 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:11:27,557 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:27,558 INFO  L87              Difference]: Start difference. First operand 18676 states and 20938 transitions. Second operand  has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:28,196 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:28,196 INFO  L93              Difference]: Finished difference Result 40109 states and 44936 transitions.
[2024-11-08 11:11:28,197 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:11:28,197 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 326
[2024-11-08 11:11:28,197 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:28,221 INFO  L225             Difference]: With dead ends: 40109
[2024-11-08 11:11:28,221 INFO  L226             Difference]: Without dead ends: 21803
[2024-11-08 11:11:28,235 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:28,236 INFO  L432           NwaCegarLoop]: 129 mSDtfsCounter, 168 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:28,236 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 155 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 11:11:28,252 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21803 states.
[2024-11-08 11:11:28,395 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21803 to 14439.
[2024-11-08 11:11:28,408 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14439 states, 14438 states have (on average 1.13159717412384) internal successors, (16338), 14438 states have internal predecessors, (16338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:28,425 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14439 states to 14439 states and 16338 transitions.
[2024-11-08 11:11:28,426 INFO  L78                 Accepts]: Start accepts. Automaton has 14439 states and 16338 transitions. Word has length 326
[2024-11-08 11:11:28,426 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:28,427 INFO  L471      AbstractCegarLoop]: Abstraction has 14439 states and 16338 transitions.
[2024-11-08 11:11:28,427 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:28,427 INFO  L276                IsEmpty]: Start isEmpty. Operand 14439 states and 16338 transitions.
[2024-11-08 11:11:28,433 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 334
[2024-11-08 11:11:28,434 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:28,434 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 11:11:28,434 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-08 11:11:28,434 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:28,435 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:28,435 INFO  L85        PathProgramCache]: Analyzing trace with hash 234214298, now seen corresponding path program 1 times
[2024-11-08 11:11:28,435 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:28,435 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109250842]
[2024-11-08 11:11:28,435 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:28,436 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:28,492 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:28,687 INFO  L134       CoverageAnalysis]: Checked inductivity of 221 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked.
[2024-11-08 11:11:28,687 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:28,687 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109250842]
[2024-11-08 11:11:28,687 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109250842] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:28,687 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:28,687 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:11:28,688 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234637960]
[2024-11-08 11:11:28,688 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:28,688 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:11:28,688 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:28,689 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:11:28,689 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:28,689 INFO  L87              Difference]: Start difference. First operand 14439 states and 16338 transitions. Second operand  has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:29,043 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:29,043 INFO  L93              Difference]: Finished difference Result 28500 states and 32286 transitions.
[2024-11-08 11:11:29,043 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:11:29,043 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 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 333
[2024-11-08 11:11:29,044 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:29,057 INFO  L225             Difference]: With dead ends: 28500
[2024-11-08 11:11:29,057 INFO  L226             Difference]: Without dead ends: 14431
[2024-11-08 11:11:29,068 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:29,068 INFO  L432           NwaCegarLoop]: 40 mSDtfsCounter, 189 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:29,069 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 40 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 11:11:29,080 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14431 states.
[2024-11-08 11:11:29,194 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14431 to 14428.
[2024-11-08 11:11:29,207 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14428 states, 14427 states have (on average 1.1309350523324322) internal successors, (16316), 14427 states have internal predecessors, (16316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:29,223 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14428 states to 14428 states and 16316 transitions.
[2024-11-08 11:11:29,224 INFO  L78                 Accepts]: Start accepts. Automaton has 14428 states and 16316 transitions. Word has length 333
[2024-11-08 11:11:29,225 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:29,225 INFO  L471      AbstractCegarLoop]: Abstraction has 14428 states and 16316 transitions.
[2024-11-08 11:11:29,225 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:29,225 INFO  L276                IsEmpty]: Start isEmpty. Operand 14428 states and 16316 transitions.
[2024-11-08 11:11:29,233 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 358
[2024-11-08 11:11:29,233 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:29,234 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 11:11:29,234 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-08 11:11:29,234 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:29,234 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:29,235 INFO  L85        PathProgramCache]: Analyzing trace with hash -1309922959, now seen corresponding path program 1 times
[2024-11-08 11:11:29,235 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:29,235 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648911106]
[2024-11-08 11:11:29,235 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:29,235 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:29,292 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:29,540 INFO  L134       CoverageAnalysis]: Checked inductivity of 392 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked.
[2024-11-08 11:11:29,540 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:29,541 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648911106]
[2024-11-08 11:11:29,541 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648911106] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:29,541 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:29,541 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:11:29,541 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082970095]
[2024-11-08 11:11:29,541 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:29,542 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:11:29,542 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:29,543 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:11:29,543 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:29,543 INFO  L87              Difference]: Start difference. First operand 14428 states and 16316 transitions. Second operand  has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:30,423 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:30,423 INFO  L93              Difference]: Finished difference Result 32350 states and 36463 transitions.
[2024-11-08 11:11:30,424 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:11:30,424 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 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 357
[2024-11-08 11:11:30,424 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:30,445 INFO  L225             Difference]: With dead ends: 32350
[2024-11-08 11:11:30,445 INFO  L226             Difference]: Without dead ends: 16448
[2024-11-08 11:11:30,459 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:30,460 INFO  L432           NwaCegarLoop]: 294 mSDtfsCounter, 150 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:30,460 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 309 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 11:11:30,470 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16448 states.
[2024-11-08 11:11:30,639 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16448 to 14052.
[2024-11-08 11:11:30,652 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14052 states, 14051 states have (on average 1.095224539178706) internal successors, (15389), 14051 states have internal predecessors, (15389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:30,674 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14052 states to 14052 states and 15389 transitions.
[2024-11-08 11:11:30,675 INFO  L78                 Accepts]: Start accepts. Automaton has 14052 states and 15389 transitions. Word has length 357
[2024-11-08 11:11:30,675 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:30,676 INFO  L471      AbstractCegarLoop]: Abstraction has 14052 states and 15389 transitions.
[2024-11-08 11:11:30,676 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:30,676 INFO  L276                IsEmpty]: Start isEmpty. Operand 14052 states and 15389 transitions.
[2024-11-08 11:11:30,686 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 359
[2024-11-08 11:11:30,686 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:30,687 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 11:11:30,687 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-08 11:11:30,687 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:30,688 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:30,688 INFO  L85        PathProgramCache]: Analyzing trace with hash -2132777761, now seen corresponding path program 1 times
[2024-11-08 11:11:30,688 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:30,688 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007035047]
[2024-11-08 11:11:30,688 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:30,689 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:30,775 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:31,452 INFO  L134       CoverageAnalysis]: Checked inductivity of 394 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked.
[2024-11-08 11:11:31,452 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:31,452 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007035047]
[2024-11-08 11:11:31,452 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007035047] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:31,452 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:31,453 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 11:11:31,453 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352620961]
[2024-11-08 11:11:31,453 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:31,453 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 11:11:31,453 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:31,454 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 11:11:31,454 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:11:31,454 INFO  L87              Difference]: Start difference. First operand 14052 states and 15389 transitions. Second operand  has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:32,416 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:32,416 INFO  L93              Difference]: Finished difference Result 28841 states and 31559 transitions.
[2024-11-08 11:11:32,417 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 11:11:32,417 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 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 358
[2024-11-08 11:11:32,417 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:32,430 INFO  L225             Difference]: With dead ends: 28841
[2024-11-08 11:11:32,430 INFO  L226             Difference]: Without dead ends: 15159
[2024-11-08 11:11:32,439 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:11:32,439 INFO  L432           NwaCegarLoop]: 77 mSDtfsCounter, 302 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:32,440 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 118 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-08 11:11:32,449 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15159 states.
[2024-11-08 11:11:32,558 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15159 to 14236.
[2024-11-08 11:11:32,568 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14236 states, 14235 states have (on average 1.0942746750965928) internal successors, (15577), 14235 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:32,583 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14236 states to 14236 states and 15577 transitions.
[2024-11-08 11:11:32,584 INFO  L78                 Accepts]: Start accepts. Automaton has 14236 states and 15577 transitions. Word has length 358
[2024-11-08 11:11:32,585 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:32,585 INFO  L471      AbstractCegarLoop]: Abstraction has 14236 states and 15577 transitions.
[2024-11-08 11:11:32,585 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:32,585 INFO  L276                IsEmpty]: Start isEmpty. Operand 14236 states and 15577 transitions.
[2024-11-08 11:11:32,592 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 373
[2024-11-08 11:11:32,592 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:32,592 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 11:11:32,593 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-08 11:11:32,593 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:32,593 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:32,593 INFO  L85        PathProgramCache]: Analyzing trace with hash 827224776, now seen corresponding path program 1 times
[2024-11-08 11:11:32,594 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:32,594 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486435274]
[2024-11-08 11:11:32,594 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:32,594 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:32,650 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:32,910 INFO  L134       CoverageAnalysis]: Checked inductivity of 425 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked.
[2024-11-08 11:11:32,910 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:32,910 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486435274]
[2024-11-08 11:11:32,911 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486435274] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:32,911 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:32,911 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:11:32,911 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356583166]
[2024-11-08 11:11:32,911 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:32,912 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 11:11:32,912 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:32,912 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 11:11:32,912 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:11:32,912 INFO  L87              Difference]: Start difference. First operand 14236 states and 15577 transitions. Second operand  has 4 states, 4 states have (on average 73.0) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:33,829 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:33,829 INFO  L93              Difference]: Finished difference Result 36219 states and 39627 transitions.
[2024-11-08 11:11:33,829 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 11:11:33,829 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 73.0) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 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 372
[2024-11-08 11:11:33,830 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:33,851 INFO  L225             Difference]: With dead ends: 36219
[2024-11-08 11:11:33,852 INFO  L226             Difference]: Without dead ends: 21801
[2024-11-08 11:11:33,862 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:11:33,862 INFO  L432           NwaCegarLoop]: 39 mSDtfsCounter, 229 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:33,863 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 71 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 11:11:33,872 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21801 states.
[2024-11-08 11:11:34,009 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21801 to 20506.
[2024-11-08 11:11:34,024 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20506 states, 20505 states have (on average 1.090904657400634) internal successors, (22369), 20505 states have internal predecessors, (22369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:34,043 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20506 states to 20506 states and 22369 transitions.
[2024-11-08 11:11:34,044 INFO  L78                 Accepts]: Start accepts. Automaton has 20506 states and 22369 transitions. Word has length 372
[2024-11-08 11:11:34,044 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:34,044 INFO  L471      AbstractCegarLoop]: Abstraction has 20506 states and 22369 transitions.
[2024-11-08 11:11:34,044 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 73.0) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:34,044 INFO  L276                IsEmpty]: Start isEmpty. Operand 20506 states and 22369 transitions.
[2024-11-08 11:11:34,050 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 390
[2024-11-08 11:11:34,050 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:34,051 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 11:11:34,051 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-11-08 11:11:34,051 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:34,051 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:34,051 INFO  L85        PathProgramCache]: Analyzing trace with hash -1553293930, now seen corresponding path program 1 times
[2024-11-08 11:11:34,051 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:34,052 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851850338]
[2024-11-08 11:11:34,052 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:34,052 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:34,111 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:34,405 INFO  L134       CoverageAnalysis]: Checked inductivity of 423 backedges. 146 proven. 200 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked.
[2024-11-08 11:11:34,405 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:34,405 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851850338]
[2024-11-08 11:11:34,406 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851850338] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 11:11:34,406 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484566985]
[2024-11-08 11:11:34,406 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:34,406 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 11:11:34,406 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 11:11:34,408 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 11:11:34,409 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 11:11:34,551 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:34,552 INFO  L255         TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-08 11:11:34,561 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 11:11:35,948 INFO  L134       CoverageAnalysis]: Checked inductivity of 423 backedges. 244 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:11:35,949 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 11:11:39,186 INFO  L134       CoverageAnalysis]: Checked inductivity of 423 backedges. 244 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:11:39,187 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [484566985] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 11:11:39,187 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 11:11:39,187 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 11
[2024-11-08 11:11:39,187 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413082124]
[2024-11-08 11:11:39,187 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 11:11:39,189 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-08 11:11:39,189 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:39,190 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 11:11:39,190 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132
[2024-11-08 11:11:39,191 INFO  L87              Difference]: Start difference. First operand 20506 states and 22369 transitions. Second operand  has 12 states, 12 states have (on average 76.16666666666667) internal successors, (914), 11 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:45,472 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:45,472 INFO  L93              Difference]: Finished difference Result 61425 states and 66654 transitions.
[2024-11-08 11:11:45,472 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. 
[2024-11-08 11:11:45,473 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 76.16666666666667) internal successors, (914), 11 states have internal predecessors, (914), 0 states have call successors, (0), 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 389
[2024-11-08 11:11:45,473 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:45,518 INFO  L225             Difference]: With dead ends: 61425
[2024-11-08 11:11:45,519 INFO  L226             Difference]: Without dead ends: 40551
[2024-11-08 11:11:45,535 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 809 GetRequests, 770 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=464, Invalid=1176, Unknown=0, NotChecked=0, Total=1640
[2024-11-08 11:11:45,535 INFO  L432           NwaCegarLoop]: 43 mSDtfsCounter, 4321 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 7691 mSolverCounterSat, 1121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4321 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 8812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1121 IncrementalHoareTripleChecker+Valid, 7691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:45,536 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4321 Valid, 202 Invalid, 8812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1121 Valid, 7691 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time]
[2024-11-08 11:11:45,563 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40551 states.
[2024-11-08 11:11:45,922 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40551 to 35614.
[2024-11-08 11:11:45,946 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 35614 states, 35613 states have (on average 1.0764046836829249) internal successors, (38334), 35613 states have internal predecessors, (38334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:45,976 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35614 states to 35614 states and 38334 transitions.
[2024-11-08 11:11:45,977 INFO  L78                 Accepts]: Start accepts. Automaton has 35614 states and 38334 transitions. Word has length 389
[2024-11-08 11:11:45,978 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:45,978 INFO  L471      AbstractCegarLoop]: Abstraction has 35614 states and 38334 transitions.
[2024-11-08 11:11:45,978 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 76.16666666666667) internal successors, (914), 11 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:45,978 INFO  L276                IsEmpty]: Start isEmpty. Operand 35614 states and 38334 transitions.
[2024-11-08 11:11:45,985 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 395
[2024-11-08 11:11:45,986 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:45,986 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 11:11:45,998 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-08 11:11:46,186 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,SelfDestructingSolverStorable19
[2024-11-08 11:11:46,187 INFO  L396      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:46,187 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:46,187 INFO  L85        PathProgramCache]: Analyzing trace with hash -1546004851, now seen corresponding path program 1 times
[2024-11-08 11:11:46,187 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:46,187 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334068675]
[2024-11-08 11:11:46,188 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:46,188 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:46,272 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:46,803 INFO  L134       CoverageAnalysis]: Checked inductivity of 263 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked.
[2024-11-08 11:11:46,803 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:46,803 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334068675]
[2024-11-08 11:11:46,803 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334068675] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:46,804 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:46,804 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:11:46,804 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448321564]
[2024-11-08 11:11:46,804 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:46,805 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 11:11:46,805 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:46,805 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 11:11:46,805 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:11:46,806 INFO  L87              Difference]: Start difference. First operand 35614 states and 38334 transitions. Second operand  has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:47,844 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:47,844 INFO  L93              Difference]: Finished difference Result 72893 states and 78533 transitions.
[2024-11-08 11:11:47,844 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 11:11:47,844 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 394
[2024-11-08 11:11:47,845 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:47,881 INFO  L225             Difference]: With dead ends: 72893
[2024-11-08 11:11:47,881 INFO  L226             Difference]: Without dead ends: 37649
[2024-11-08 11:11:47,902 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:11:47,903 INFO  L432           NwaCegarLoop]: 69 mSDtfsCounter, 200 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:47,903 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 105 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-08 11:11:47,929 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 37649 states.
[2024-11-08 11:11:48,224 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 37649 to 33762.
[2024-11-08 11:11:48,245 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 33762 states, 33761 states have (on average 1.0759752377003051) internal successors, (36326), 33761 states have internal predecessors, (36326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:48,277 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 33762 states to 33762 states and 36326 transitions.
[2024-11-08 11:11:48,279 INFO  L78                 Accepts]: Start accepts. Automaton has 33762 states and 36326 transitions. Word has length 394
[2024-11-08 11:11:48,279 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:48,279 INFO  L471      AbstractCegarLoop]: Abstraction has 33762 states and 36326 transitions.
[2024-11-08 11:11:48,279 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:48,279 INFO  L276                IsEmpty]: Start isEmpty. Operand 33762 states and 36326 transitions.
[2024-11-08 11:11:48,288 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 435
[2024-11-08 11:11:48,288 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:48,289 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 11:11:48,289 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-11-08 11:11:48,289 INFO  L396      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:48,289 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:48,290 INFO  L85        PathProgramCache]: Analyzing trace with hash -1148113260, now seen corresponding path program 1 times
[2024-11-08 11:11:48,290 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:48,290 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274795641]
[2024-11-08 11:11:48,290 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:48,290 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:48,435 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:48,841 INFO  L134       CoverageAnalysis]: Checked inductivity of 425 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked.
[2024-11-08 11:11:48,842 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:48,842 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274795641]
[2024-11-08 11:11:48,842 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274795641] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:48,842 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:48,842 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:11:48,843 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39027299]
[2024-11-08 11:11:48,843 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:48,843 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:11:48,844 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:48,844 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:11:48,844 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:48,844 INFO  L87              Difference]: Start difference. First operand 33762 states and 36326 transitions. Second operand  has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:49,511 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:49,511 INFO  L93              Difference]: Finished difference Result 69174 states and 74442 transitions.
[2024-11-08 11:11:49,512 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:11:49,512 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 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 434
[2024-11-08 11:11:49,513 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:49,549 INFO  L225             Difference]: With dead ends: 69174
[2024-11-08 11:11:49,549 INFO  L226             Difference]: Without dead ends: 35782
[2024-11-08 11:11:49,569 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:49,570 INFO  L432           NwaCegarLoop]: 297 mSDtfsCounter, 156 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:49,570 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 316 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-08 11:11:49,594 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 35782 states.
[2024-11-08 11:11:49,894 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 35782 to 29520.
[2024-11-08 11:11:49,913 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 29520 states, 29519 states have (on average 1.0707679799451202) internal successors, (31608), 29519 states have internal predecessors, (31608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:49,938 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 29520 states to 29520 states and 31608 transitions.
[2024-11-08 11:11:49,939 INFO  L78                 Accepts]: Start accepts. Automaton has 29520 states and 31608 transitions. Word has length 434
[2024-11-08 11:11:49,940 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:49,940 INFO  L471      AbstractCegarLoop]: Abstraction has 29520 states and 31608 transitions.
[2024-11-08 11:11:49,940 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:49,940 INFO  L276                IsEmpty]: Start isEmpty. Operand 29520 states and 31608 transitions.
[2024-11-08 11:11:49,950 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 469
[2024-11-08 11:11:49,950 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:49,950 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:11:49,950 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-11-08 11:11:49,951 INFO  L396      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:49,951 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:49,951 INFO  L85        PathProgramCache]: Analyzing trace with hash -1848032332, now seen corresponding path program 1 times
[2024-11-08 11:11:49,951 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:49,951 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690668170]
[2024-11-08 11:11:49,951 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:49,951 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:50,100 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:50,515 INFO  L134       CoverageAnalysis]: Checked inductivity of 762 backedges. 608 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked.
[2024-11-08 11:11:50,515 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:50,515 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690668170]
[2024-11-08 11:11:50,515 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690668170] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:50,515 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:50,515 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:11:50,516 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006330497]
[2024-11-08 11:11:50,516 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:50,516 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:11:50,516 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:50,517 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:11:50,517 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:50,517 INFO  L87              Difference]: Start difference. First operand 29520 states and 31608 transitions. Second operand  has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:51,180 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:51,180 INFO  L93              Difference]: Finished difference Result 57758 states and 61913 transitions.
[2024-11-08 11:11:51,181 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:11:51,181 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 468
[2024-11-08 11:11:51,182 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:51,215 INFO  L225             Difference]: With dead ends: 57758
[2024-11-08 11:11:51,215 INFO  L226             Difference]: Without dead ends: 30816
[2024-11-08 11:11:51,232 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:11:51,232 INFO  L432           NwaCegarLoop]: 92 mSDtfsCounter, 134 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:51,232 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 111 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-08 11:11:51,251 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 30816 states.
[2024-11-08 11:11:51,524 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 30816 to 29152.
[2024-11-08 11:11:51,545 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 29152 states, 29151 states have (on average 1.0702205756234777) internal successors, (31198), 29151 states have internal predecessors, (31198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:51,571 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 29152 states to 29152 states and 31198 transitions.
[2024-11-08 11:11:51,572 INFO  L78                 Accepts]: Start accepts. Automaton has 29152 states and 31198 transitions. Word has length 468
[2024-11-08 11:11:51,572 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:51,573 INFO  L471      AbstractCegarLoop]: Abstraction has 29152 states and 31198 transitions.
[2024-11-08 11:11:51,573 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:51,573 INFO  L276                IsEmpty]: Start isEmpty. Operand 29152 states and 31198 transitions.
[2024-11-08 11:11:51,582 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 473
[2024-11-08 11:11:51,582 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:51,583 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 11:11:51,583 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2024-11-08 11:11:51,583 INFO  L396      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:51,584 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:51,584 INFO  L85        PathProgramCache]: Analyzing trace with hash 1117136727, now seen corresponding path program 1 times
[2024-11-08 11:11:51,584 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:51,584 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736815404]
[2024-11-08 11:11:51,584 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:51,584 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:51,636 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:52,244 INFO  L134       CoverageAnalysis]: Checked inductivity of 685 backedges. 269 proven. 132 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked.
[2024-11-08 11:11:52,245 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:52,245 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736815404]
[2024-11-08 11:11:52,245 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736815404] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 11:11:52,245 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70809820]
[2024-11-08 11:11:52,245 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:52,245 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 11:11:52,245 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 11:11:52,247 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 11:11:52,250 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 11:11:52,401 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:52,403 INFO  L255         TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 11:11:52,408 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 11:11:52,568 INFO  L134       CoverageAnalysis]: Checked inductivity of 685 backedges. 401 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked.
[2024-11-08 11:11:52,568 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 11:11:52,568 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [70809820] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:52,568 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 11:11:52,568 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2024-11-08 11:11:52,569 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019664277]
[2024-11-08 11:11:52,569 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:52,569 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:11:52,569 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:52,570 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:11:52,570 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 11:11:52,570 INFO  L87              Difference]: Start difference. First operand 29152 states and 31198 transitions. Second operand  has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:53,136 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:53,136 INFO  L93              Difference]: Finished difference Result 55910 states and 59881 transitions.
[2024-11-08 11:11:53,137 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:11:53,137 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 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 472
[2024-11-08 11:11:53,137 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:53,165 INFO  L225             Difference]: With dead ends: 55910
[2024-11-08 11:11:53,165 INFO  L226             Difference]: Without dead ends: 28782
[2024-11-08 11:11:53,183 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 11:11:53,183 INFO  L432           NwaCegarLoop]: 142 mSDtfsCounter, 120 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:53,184 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 163 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 11:11:53,204 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 28782 states.
[2024-11-08 11:11:53,434 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 28782 to 28046.
[2024-11-08 11:11:53,452 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 28046 states, 28045 states have (on average 1.0686040292387236) internal successors, (29969), 28045 states have internal predecessors, (29969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:53,476 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 28046 states to 28046 states and 29969 transitions.
[2024-11-08 11:11:53,477 INFO  L78                 Accepts]: Start accepts. Automaton has 28046 states and 29969 transitions. Word has length 472
[2024-11-08 11:11:53,477 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:53,477 INFO  L471      AbstractCegarLoop]: Abstraction has 28046 states and 29969 transitions.
[2024-11-08 11:11:53,478 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:53,478 INFO  L276                IsEmpty]: Start isEmpty. Operand 28046 states and 29969 transitions.
[2024-11-08 11:11:53,486 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 524
[2024-11-08 11:11:53,487 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:53,487 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:11:53,499 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-08 11:11:53,687 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 11:11:53,688 INFO  L396      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:53,688 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:53,688 INFO  L85        PathProgramCache]: Analyzing trace with hash 2131901513, now seen corresponding path program 1 times
[2024-11-08 11:11:53,688 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:53,689 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958815869]
[2024-11-08 11:11:53,689 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:53,689 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:53,751 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:54,791 INFO  L134       CoverageAnalysis]: Checked inductivity of 779 backedges. 599 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked.
[2024-11-08 11:11:54,791 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:54,792 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958815869]
[2024-11-08 11:11:54,792 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958815869] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:11:54,792 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:11:54,792 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 11:11:54,792 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882845760]
[2024-11-08 11:11:54,792 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:11:54,793 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 11:11:54,793 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:11:54,794 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 11:11:54,794 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-08 11:11:54,794 INFO  L87              Difference]: Start difference. First operand 28046 states and 29969 transitions. Second operand  has 7 states, 7 states have (on average 56.285714285714285) internal successors, (394), 6 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:56,275 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:11:56,275 INFO  L93              Difference]: Finished difference Result 58856 states and 62884 transitions.
[2024-11-08 11:11:56,275 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-08 11:11:56,275 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 56.285714285714285) internal successors, (394), 6 states have internal predecessors, (394), 0 states have call successors, (0), 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 523
[2024-11-08 11:11:56,276 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:11:56,308 INFO  L225             Difference]: With dead ends: 58856
[2024-11-08 11:11:56,308 INFO  L226             Difference]: Without dead ends: 33204
[2024-11-08 11:11:56,324 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2024-11-08 11:11:56,324 INFO  L432           NwaCegarLoop]: 112 mSDtfsCounter, 214 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 2379 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 2406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-11-08 11:11:56,325 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 227 Invalid, 2406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2379 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-11-08 11:11:56,343 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33204 states.
[2024-11-08 11:11:56,580 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33204 to 29152.
[2024-11-08 11:11:56,595 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 29152 states, 29151 states have (on average 1.069054234846146) internal successors, (31164), 29151 states have internal predecessors, (31164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:56,618 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 29152 states to 29152 states and 31164 transitions.
[2024-11-08 11:11:56,619 INFO  L78                 Accepts]: Start accepts. Automaton has 29152 states and 31164 transitions. Word has length 523
[2024-11-08 11:11:56,619 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:11:56,620 INFO  L471      AbstractCegarLoop]: Abstraction has 29152 states and 31164 transitions.
[2024-11-08 11:11:56,620 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 56.285714285714285) internal successors, (394), 6 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:11:56,620 INFO  L276                IsEmpty]: Start isEmpty. Operand 29152 states and 31164 transitions.
[2024-11-08 11:11:56,631 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 534
[2024-11-08 11:11:56,631 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:11:56,631 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-08 11:11:56,631 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2024-11-08 11:11:56,631 INFO  L396      AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:11:56,632 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:11:56,632 INFO  L85        PathProgramCache]: Analyzing trace with hash 435204898, now seen corresponding path program 1 times
[2024-11-08 11:11:56,632 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:11:56,632 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633467827]
[2024-11-08 11:11:56,632 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:56,632 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:11:56,770 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:57,896 INFO  L134       CoverageAnalysis]: Checked inductivity of 794 backedges. 606 proven. 8 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked.
[2024-11-08 11:11:57,896 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:11:57,896 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633467827]
[2024-11-08 11:11:57,897 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633467827] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 11:11:57,897 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116585101]
[2024-11-08 11:11:57,897 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:11:57,897 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 11:11:57,897 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 11:11:57,899 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 11:11:57,900 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-08 11:11:58,091 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:11:58,094 INFO  L255         TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-08 11:11:58,100 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 11:11:59,034 INFO  L134       CoverageAnalysis]: Checked inductivity of 794 backedges. 493 proven. 121 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked.
[2024-11-08 11:11:59,035 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 11:12:01,828 INFO  L134       CoverageAnalysis]: Checked inductivity of 794 backedges. 493 proven. 121 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked.
[2024-11-08 11:12:01,828 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116585101] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 11:12:01,828 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 11:12:01,829 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 10
[2024-11-08 11:12:01,829 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388498934]
[2024-11-08 11:12:01,829 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 11:12:01,830 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-08 11:12:01,830 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:12:01,831 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-08 11:12:01,831 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110
[2024-11-08 11:12:01,831 INFO  L87              Difference]: Start difference. First operand 29152 states and 31164 transitions. Second operand  has 11 states, 11 states have (on average 88.36363636363636) internal successors, (972), 10 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:12:05,144 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:12:05,145 INFO  L93              Difference]: Finished difference Result 62169 states and 66307 transitions.
[2024-11-08 11:12:05,145 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2024-11-08 11:12:05,145 INFO  L78                 Accepts]: Start accepts. Automaton has  has 11 states, 11 states have (on average 88.36363636363636) internal successors, (972), 10 states have internal predecessors, (972), 0 states have call successors, (0), 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 533
[2024-11-08 11:12:05,146 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:12:05,174 INFO  L225             Difference]: With dead ends: 62169
[2024-11-08 11:12:05,174 INFO  L226             Difference]: Without dead ends: 28785
[2024-11-08 11:12:05,189 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1087 GetRequests, 1062 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=227, Invalid=475, Unknown=0, NotChecked=0, Total=702
[2024-11-08 11:12:05,190 INFO  L432           NwaCegarLoop]: 28 mSDtfsCounter, 1368 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 3917 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 4433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 3917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-08 11:12:05,190 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1368 Valid, 147 Invalid, 4433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 3917 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-08 11:12:05,207 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 28785 states.
[2024-11-08 11:12:05,369 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 28785 to 14401.
[2024-11-08 11:12:05,379 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14401 states, 14400 states have (on average 1.0522916666666666) internal successors, (15153), 14400 states have internal predecessors, (15153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:12:05,392 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14401 states to 14401 states and 15153 transitions.
[2024-11-08 11:12:05,393 INFO  L78                 Accepts]: Start accepts. Automaton has 14401 states and 15153 transitions. Word has length 533
[2024-11-08 11:12:05,393 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:12:05,393 INFO  L471      AbstractCegarLoop]: Abstraction has 14401 states and 15153 transitions.
[2024-11-08 11:12:05,394 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 88.36363636363636) internal successors, (972), 10 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:12:05,394 INFO  L276                IsEmpty]: Start isEmpty. Operand 14401 states and 15153 transitions.
[2024-11-08 11:12:05,399 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 537
[2024-11-08 11:12:05,400 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:12:05,400 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 11:12:05,414 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-08 11:12:05,600 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25
[2024-11-08 11:12:05,601 INFO  L396      AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:12:05,601 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:12:05,601 INFO  L85        PathProgramCache]: Analyzing trace with hash -1729367067, now seen corresponding path program 1 times
[2024-11-08 11:12:05,601 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:12:05,601 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124908356]
[2024-11-08 11:12:05,601 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:12:05,602 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:12:05,684 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:12:06,414 INFO  L134       CoverageAnalysis]: Checked inductivity of 746 backedges. 390 proven. 206 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked.
[2024-11-08 11:12:06,414 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:12:06,415 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124908356]
[2024-11-08 11:12:06,415 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124908356] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 11:12:06,415 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447294564]
[2024-11-08 11:12:06,415 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:12:06,415 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 11:12:06,415 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 11:12:06,417 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 11:12:06,419 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-08 11:12:06,613 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:12:06,617 INFO  L255         TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 11:12:06,623 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 11:12:07,771 INFO  L134       CoverageAnalysis]: Checked inductivity of 746 backedges. 341 proven. 255 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked.
[2024-11-08 11:12:07,772 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 11:12:09,791 INFO  L134       CoverageAnalysis]: Checked inductivity of 746 backedges. 527 proven. 69 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked.
[2024-11-08 11:12:09,792 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [447294564] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 11:12:09,792 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 11:12:09,792 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10
[2024-11-08 11:12:09,792 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81491381]
[2024-11-08 11:12:09,793 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 11:12:09,794 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-08 11:12:09,794 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:12:09,795 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-08 11:12:09,795 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90
[2024-11-08 11:12:09,795 INFO  L87              Difference]: Start difference. First operand 14401 states and 15153 transitions. Second operand  has 10 states, 10 states have (on average 84.3) internal successors, (843), 10 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:12:12,256 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:12:12,256 INFO  L93              Difference]: Finished difference Result 36371 states and 38285 transitions.
[2024-11-08 11:12:12,257 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-08 11:12:12,257 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 84.3) internal successors, (843), 10 states have internal predecessors, (843), 0 states have call successors, (0), 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 536
[2024-11-08 11:12:12,258 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:12:12,277 INFO  L225             Difference]: With dead ends: 36371
[2024-11-08 11:12:12,278 INFO  L226             Difference]: Without dead ends: 20500
[2024-11-08 11:12:12,289 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1075 GetRequests, 1066 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90
[2024-11-08 11:12:12,289 INFO  L432           NwaCegarLoop]: 48 mSDtfsCounter, 876 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 3256 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 3580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 3256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2024-11-08 11:12:12,289 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 162 Invalid, 3580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 3256 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2024-11-08 11:12:12,302 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20500 states.
[2024-11-08 11:12:12,468 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20500 to 18461.
[2024-11-08 11:12:12,480 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18461 states, 18460 states have (on average 1.0465872156013) internal successors, (19320), 18460 states have internal predecessors, (19320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:12:12,496 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18461 states to 18461 states and 19320 transitions.
[2024-11-08 11:12:12,497 INFO  L78                 Accepts]: Start accepts. Automaton has 18461 states and 19320 transitions. Word has length 536
[2024-11-08 11:12:12,497 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:12:12,497 INFO  L471      AbstractCegarLoop]: Abstraction has 18461 states and 19320 transitions.
[2024-11-08 11:12:12,498 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 84.3) internal successors, (843), 10 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:12:12,498 INFO  L276                IsEmpty]: Start isEmpty. Operand 18461 states and 19320 transitions.
[2024-11-08 11:12:12,508 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 671
[2024-11-08 11:12:12,509 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:12:12,509 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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]
[2024-11-08 11:12:12,528 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-08 11:12:12,713 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,SelfDestructingSolverStorable26
[2024-11-08 11:12:12,714 INFO  L396      AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:12:12,714 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:12:12,714 INFO  L85        PathProgramCache]: Analyzing trace with hash -90709383, now seen corresponding path program 1 times
[2024-11-08 11:12:12,714 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:12:12,714 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536631108]
[2024-11-08 11:12:12,715 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:12:12,715 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:12:12,855 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:12:13,204 INFO  L134       CoverageAnalysis]: Checked inductivity of 1288 backedges. 984 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked.
[2024-11-08 11:12:13,204 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:12:13,204 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536631108]
[2024-11-08 11:12:13,205 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536631108] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:12:13,205 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:12:13,205 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:12:13,205 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653179760]
[2024-11-08 11:12:13,205 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:12:13,206 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:12:13,206 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:12:13,207 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:12:13,207 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:12:13,207 INFO  L87              Difference]: Start difference. First operand 18461 states and 19320 transitions. Second operand  has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:12:13,718 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:12:13,718 INFO  L93              Difference]: Finished difference Result 33964 states and 35530 transitions.
[2024-11-08 11:12:13,719 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:12:13,719 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 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 670
[2024-11-08 11:12:13,719 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:12:13,739 INFO  L225             Difference]: With dead ends: 33964
[2024-11-08 11:12:13,739 INFO  L226             Difference]: Without dead ends: 15689
[2024-11-08 11:12:13,751 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:12:13,752 INFO  L432           NwaCegarLoop]: 250 mSDtfsCounter, 91 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 11:12:13,752 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 259 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 11:12:13,761 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15689 states.
[2024-11-08 11:12:13,868 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15689 to 13107.
[2024-11-08 11:12:13,875 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13107 states, 13106 states have (on average 1.0424996184953457) internal successors, (13663), 13106 states have internal predecessors, (13663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:12:13,885 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13107 states to 13107 states and 13663 transitions.
[2024-11-08 11:12:13,886 INFO  L78                 Accepts]: Start accepts. Automaton has 13107 states and 13663 transitions. Word has length 670
[2024-11-08 11:12:13,887 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:12:13,887 INFO  L471      AbstractCegarLoop]: Abstraction has 13107 states and 13663 transitions.
[2024-11-08 11:12:13,887 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:12:13,887 INFO  L276                IsEmpty]: Start isEmpty. Operand 13107 states and 13663 transitions.
[2024-11-08 11:12:13,892 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 672
[2024-11-08 11:12:13,893 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:12:13,893 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:12:13,893 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2024-11-08 11:12:13,893 INFO  L396      AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:12:13,893 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:12:13,894 INFO  L85        PathProgramCache]: Analyzing trace with hash -1179876378, now seen corresponding path program 1 times
[2024-11-08 11:12:13,894 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:12:13,894 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437226623]
[2024-11-08 11:12:13,894 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:12:13,894 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:12:13,959 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat