./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label17.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 803cd42f
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label17.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 eca4fa24c7d17d702b457b7d1d0ed6513492942e324299a6e335f63078cc8b55
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m
[2024-11-21 22:18:34,426 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-21 22:18:34,496 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-21 22:18:34,499 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-21 22:18:34,499 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-21 22:18:34,524 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-21 22:18:34,526 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-21 22:18:34,527 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-21 22:18:34,527 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-21 22:18:34,528 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-21 22:18:34,529 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-21 22:18:34,529 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-21 22:18:34,529 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-21 22:18:34,529 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-21 22:18:34,530 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-21 22:18:34,531 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-21 22:18:34,531 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-21 22:18:34,534 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-21 22:18:34,534 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-21 22:18:34,535 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-21 22:18:34,535 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-21 22:18:34,535 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-21 22:18:34,535 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-21 22:18:34,536 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-21 22:18:34,536 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-21 22:18:34,536 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-21 22:18:34,536 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-21 22:18:34,536 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-21 22:18:34,536 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-21 22:18:34,536 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-21 22:18:34,537 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-21 22:18:34,537 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-21 22:18:34,537 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-21 22:18:34,537 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-21 22:18:34,537 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-21 22:18:34,537 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-21 22:18:34,538 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-21 22:18:34,538 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-21 22:18:34,538 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-21 22:18:34,538 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-21 22:18:34,538 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-21 22:18:34,541 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-21 22:18:34,541 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 -> eca4fa24c7d17d702b457b7d1d0ed6513492942e324299a6e335f63078cc8b55
[2024-11-21 22:18:34,790 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-21 22:18:34,822 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-21 22:18:34,829 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-21 22:18:34,830 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-21 22:18:34,832 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-21 22:18:34,833 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label17.c
[2024-11-21 22:18:36,258 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-21 22:18:36,525 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-21 22:18:36,526 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label17.c
[2024-11-21 22:18:36,541 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e51d88b5/7a3d1f4ac2db4a9298cb47803d7cf64e/FLAG6098a194a
[2024-11-21 22:18:36,832 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e51d88b5/7a3d1f4ac2db4a9298cb47803d7cf64e
[2024-11-21 22:18:36,837 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-21 22:18:36,838 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-21 22:18:36,839 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-21 22:18:36,839 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-21 22:18:36,844 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-21 22:18:36,845 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:36" (1/1) ...
[2024-11-21 22:18:36,847 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c095f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:36, skipping insertion in model container
[2024-11-21 22:18:36,850 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:36" (1/1) ...
[2024-11-21 22:18:36,904 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-21 22:18:37,102 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/Problem14_label17.c[5746,5759]
[2024-11-21 22:18:37,273 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-21 22:18:37,281 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-21 22:18:37,297 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/Problem14_label17.c[5746,5759]
[2024-11-21 22:18:37,374 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-21 22:18:37,393 INFO  L204         MainTranslator]: Completed translation
[2024-11-21 22:18:37,394 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:37 WrapperNode
[2024-11-21 22:18:37,394 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-21 22:18:37,395 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-21 22:18:37,396 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-21 22:18:37,396 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-21 22:18:37,401 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:37" (1/1) ...
[2024-11-21 22:18:37,424 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:37" (1/1) ...
[2024-11-21 22:18:37,489 INFO  L138                Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 859
[2024-11-21 22:18:37,490 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-21 22:18:37,491 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-21 22:18:37,491 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-21 22:18:37,491 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-21 22:18:37,499 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:37" (1/1) ...
[2024-11-21 22:18:37,500 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:37" (1/1) ...
[2024-11-21 22:18:37,505 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:37" (1/1) ...
[2024-11-21 22:18:37,531 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].
[2024-11-21 22:18:37,531 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:37" (1/1) ...
[2024-11-21 22:18:37,531 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:37" (1/1) ...
[2024-11-21 22:18:37,561 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:37" (1/1) ...
[2024-11-21 22:18:37,566 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:37" (1/1) ...
[2024-11-21 22:18:37,572 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:37" (1/1) ...
[2024-11-21 22:18:37,577 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:37" (1/1) ...
[2024-11-21 22:18:37,586 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-21 22:18:37,590 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-21 22:18:37,590 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-21 22:18:37,590 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-21 22:18:37,591 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:37" (1/1) ...
[2024-11-21 22:18:37,596 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-21 22:18:37,603 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 22:18:37,616 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)
[2024-11-21 22:18:37,617 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
[2024-11-21 22:18:37,648 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-21 22:18:37,648 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-21 22:18:37,648 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-21 22:18:37,648 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-21 22:18:37,693 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-21 22:18:37,694 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-21 22:18:38,536 INFO  L?                        ?]: Removed 123 outVars from TransFormulas that were not future-live.
[2024-11-21 22:18:38,536 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-21 22:18:38,554 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-21 22:18:38,554 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-21 22:18:38,554 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:38 BoogieIcfgContainer
[2024-11-21 22:18:38,555 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-21 22:18:38,557 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-21 22:18:38,557 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-21 22:18:38,560 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-21 22:18:38,560 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:18:36" (1/3) ...
[2024-11-21 22:18:38,561 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c7c76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:18:38, skipping insertion in model container
[2024-11-21 22:18:38,561 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:37" (2/3) ...
[2024-11-21 22:18:38,562 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c7c76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:18:38, skipping insertion in model container
[2024-11-21 22:18:38,562 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:38" (3/3) ...
[2024-11-21 22:18:38,563 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem14_label17.c
[2024-11-21 22:18:38,577 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-21 22:18:38,577 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-21 22:18:38,636 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-21 22:18:38,643 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;@5379a7c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-21 22:18:38,643 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-21 22:18:38,647 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:38,655 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-11-21 22:18:38,655 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:18:38,656 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:18:38,657 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:18:38,661 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:18:38,661 INFO  L85        PathProgramCache]: Analyzing trace with hash -2158734, now seen corresponding path program 1 times
[2024-11-21 22:18:38,668 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:18:38,668 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368473716]
[2024-11-21 22:18:38,669 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:38,669 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:18:38,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:38,959 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 22:18:38,959 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:18:38,959 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368473716]
[2024-11-21 22:18:38,960 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368473716] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:18:38,960 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:18:38,960 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-21 22:18:38,961 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463268770]
[2024-11-21 22:18:38,963 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:18:38,967 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:18:38,968 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:18:38,986 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:18:38,987 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:18:38,990 INFO  L87              Difference]: Start difference. First operand  has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 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 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:39,819 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:18:39,819 INFO  L93              Difference]: Finished difference Result 669 states and 1200 transitions.
[2024-11-21 22:18:39,821 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:18:39,822 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56
[2024-11-21 22:18:39,823 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:18:39,835 INFO  L225             Difference]: With dead ends: 669
[2024-11-21 22:18:39,835 INFO  L226             Difference]: Without dead ends: 360
[2024-11-21 22:18:39,838 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
[2024-11-21 22:18:39,841 INFO  L432           NwaCegarLoop]: 87 mSDtfsCounter, 154 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-21 22:18:39,842 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 94 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-21 22:18:39,855 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 360 states.
[2024-11-21 22:18:39,895 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360.
[2024-11-21 22:18:39,896 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 360 states, 359 states have (on average 1.5208913649025069) internal successors, (546), 359 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:39,897 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 546 transitions.
[2024-11-21 22:18:39,899 INFO  L78                 Accepts]: Start accepts. Automaton has 360 states and 546 transitions. Word has length 56
[2024-11-21 22:18:39,899 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:18:39,899 INFO  L471      AbstractCegarLoop]: Abstraction has 360 states and 546 transitions.
[2024-11-21 22:18:39,899 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:39,900 INFO  L276                IsEmpty]: Start isEmpty. Operand 360 states and 546 transitions.
[2024-11-21 22:18:39,903 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-11-21 22:18:39,903 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:18:39,903 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, 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]
[2024-11-21 22:18:39,903 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-21 22:18:39,903 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:18:39,904 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:18:39,904 INFO  L85        PathProgramCache]: Analyzing trace with hash 448247055, now seen corresponding path program 1 times
[2024-11-21 22:18:39,904 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:18:39,904 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268485536]
[2024-11-21 22:18:39,905 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:39,905 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:18:39,991 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:40,227 INFO  L134       CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 22:18:40,228 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:18:40,228 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268485536]
[2024-11-21 22:18:40,228 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268485536] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:18:40,228 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:18:40,229 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-21 22:18:40,229 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517288296]
[2024-11-21 22:18:40,229 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:18:40,230 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:18:40,230 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:18:40,231 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:18:40,231 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:18:40,232 INFO  L87              Difference]: Start difference. First operand 360 states and 546 transitions. Second operand  has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:40,817 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:18:40,817 INFO  L93              Difference]: Finished difference Result 1074 states and 1633 transitions.
[2024-11-21 22:18:40,820 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:18:40,820 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 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 131
[2024-11-21 22:18:40,821 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:18:40,824 INFO  L225             Difference]: With dead ends: 1074
[2024-11-21 22:18:40,824 INFO  L226             Difference]: Without dead ends: 716
[2024-11-21 22:18:40,825 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
[2024-11-21 22:18:40,826 INFO  L432           NwaCegarLoop]: 91 mSDtfsCounter, 122 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-21 22:18:40,826 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 95 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-21 22:18:40,827 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 716 states.
[2024-11-21 22:18:40,841 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716.
[2024-11-21 22:18:40,842 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:40,844 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions.
[2024-11-21 22:18:40,844 INFO  L78                 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 131
[2024-11-21 22:18:40,844 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:18:40,844 INFO  L471      AbstractCegarLoop]: Abstraction has 716 states and 968 transitions.
[2024-11-21 22:18:40,845 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:40,845 INFO  L276                IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions.
[2024-11-21 22:18:40,852 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2024-11-21 22:18:40,853 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:18:40,853 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, 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]
[2024-11-21 22:18:40,853 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-21 22:18:40,854 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:18:40,854 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:18:40,854 INFO  L85        PathProgramCache]: Analyzing trace with hash -596921339, now seen corresponding path program 1 times
[2024-11-21 22:18:40,854 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:18:40,855 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228235371]
[2024-11-21 22:18:40,855 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:40,855 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:18:40,892 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:41,098 INFO  L134       CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 22:18:41,100 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:18:41,100 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228235371]
[2024-11-21 22:18:41,100 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228235371] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:18:41,100 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:18:41,101 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:18:41,101 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017638107]
[2024-11-21 22:18:41,101 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:18:41,102 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-21 22:18:41,102 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:18:41,103 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-21 22:18:41,104 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-21 22:18:41,104 INFO  L87              Difference]: Start difference. First operand 716 states and 968 transitions. Second operand  has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:41,869 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:18:41,869 INFO  L93              Difference]: Finished difference Result 1964 states and 2570 transitions.
[2024-11-21 22:18:41,870 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-21 22:18:41,870 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 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 135
[2024-11-21 22:18:41,870 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:18:41,873 INFO  L225             Difference]: With dead ends: 1964
[2024-11-21 22:18:41,873 INFO  L226             Difference]: Without dead ends: 1250
[2024-11-21 22:18:41,875 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-21 22:18:41,876 INFO  L432           NwaCegarLoop]: 110 mSDtfsCounter, 419 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-21 22:18:41,876 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 121 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-21 22:18:41,877 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1250 states.
[2024-11-21 22:18:41,891 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250.
[2024-11-21 22:18:41,893 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1250 states, 1249 states have (on average 1.2361889511609288) internal successors, (1544), 1249 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:41,895 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions.
[2024-11-21 22:18:41,895 INFO  L78                 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 135
[2024-11-21 22:18:41,895 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:18:41,895 INFO  L471      AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions.
[2024-11-21 22:18:41,896 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:41,896 INFO  L276                IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions.
[2024-11-21 22:18:41,898 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 216
[2024-11-21 22:18:41,898 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:18:41,899 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, 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, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:18:41,899 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-21 22:18:41,899 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:18:41,899 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:18:41,899 INFO  L85        PathProgramCache]: Analyzing trace with hash -452523719, now seen corresponding path program 1 times
[2024-11-21 22:18:41,900 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:18:41,900 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888080422]
[2024-11-21 22:18:41,900 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:41,900 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:18:41,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:42,111 INFO  L134       CoverageAnalysis]: Checked inductivity of 185 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked.
[2024-11-21 22:18:42,112 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:18:42,112 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888080422]
[2024-11-21 22:18:42,112 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888080422] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:18:42,112 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:18:42,112 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:18:42,112 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914948584]
[2024-11-21 22:18:42,112 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:18:42,113 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-21 22:18:42,113 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:18:42,113 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-21 22:18:42,113 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-21 22:18:42,114 INFO  L87              Difference]: Start difference. First operand 1250 states and 1544 transitions. Second operand  has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:42,685 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:18:42,685 INFO  L93              Difference]: Finished difference Result 2705 states and 3353 transitions.
[2024-11-21 22:18:42,686 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-21 22:18:42,686 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 215
[2024-11-21 22:18:42,686 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:18:42,690 INFO  L225             Difference]: With dead ends: 2705
[2024-11-21 22:18:42,691 INFO  L226             Difference]: Without dead ends: 1606
[2024-11-21 22:18:42,692 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
[2024-11-21 22:18:42,693 INFO  L432           NwaCegarLoop]: 111 mSDtfsCounter, 116 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-21 22:18:42,693 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 119 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-21 22:18:42,695 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1606 states.
[2024-11-21 22:18:42,710 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606.
[2024-11-21 22:18:42,712 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1606 states, 1605 states have (on average 1.1221183800623054) internal successors, (1801), 1605 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:42,715 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions.
[2024-11-21 22:18:42,715 INFO  L78                 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 215
[2024-11-21 22:18:42,715 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:18:42,716 INFO  L471      AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions.
[2024-11-21 22:18:42,716 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:42,716 INFO  L276                IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions.
[2024-11-21 22:18:42,718 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 343
[2024-11-21 22:18:42,719 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:18:42,719 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, 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, 2, 2, 2, 2, 2, 2, 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]
[2024-11-21 22:18:42,719 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-21 22:18:42,720 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:18:42,720 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:18:42,720 INFO  L85        PathProgramCache]: Analyzing trace with hash -1042976344, now seen corresponding path program 1 times
[2024-11-21 22:18:42,720 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:18:42,720 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582479560]
[2024-11-21 22:18:42,720 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:42,721 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:18:42,761 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:43,078 INFO  L134       CoverageAnalysis]: Checked inductivity of 414 backedges. 209 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked.
[2024-11-21 22:18:43,079 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:18:43,079 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582479560]
[2024-11-21 22:18:43,080 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582479560] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-21 22:18:43,080 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913847558]
[2024-11-21 22:18:43,080 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:43,080 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:18:43,080 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 22:18:43,083 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)
[2024-11-21 22:18:43,085 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-21 22:18:43,191 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:43,194 INFO  L255         TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-21 22:18:43,227 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-21 22:18:43,563 INFO  L134       CoverageAnalysis]: Checked inductivity of 414 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked.
[2024-11-21 22:18:43,564 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-21 22:18:43,564 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913847558] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:18:43,564 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-21 22:18:43,564 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5
[2024-11-21 22:18:43,564 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326262998]
[2024-11-21 22:18:43,565 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:18:43,565 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:18:43,565 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:18:43,566 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:18:43,566 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-21 22:18:43,566 INFO  L87              Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand  has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 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)
[2024-11-21 22:18:44,007 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:18:44,007 INFO  L93              Difference]: Finished difference Result 3388 states and 3901 transitions.
[2024-11-21 22:18:44,008 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:18:44,008 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 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 342
[2024-11-21 22:18:44,008 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:18:44,013 INFO  L225             Difference]: With dead ends: 3388
[2024-11-21 22:18:44,013 INFO  L226             Difference]: Without dead ends: 1962
[2024-11-21 22:18:44,015 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-21 22:18:44,016 INFO  L432           NwaCegarLoop]: 44 mSDtfsCounter, 82 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-21 22:18:44,016 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 47 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-21 22:18:44,018 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1962 states.
[2024-11-21 22:18:44,036 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784.
[2024-11-21 22:18:44,038 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1784 states, 1783 states have (on average 1.1318003365114975) internal successors, (2018), 1783 states have internal predecessors, (2018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:44,041 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2018 transitions.
[2024-11-21 22:18:44,041 INFO  L78                 Accepts]: Start accepts. Automaton has 1784 states and 2018 transitions. Word has length 342
[2024-11-21 22:18:44,042 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:18:44,042 INFO  L471      AbstractCegarLoop]: Abstraction has 1784 states and 2018 transitions.
[2024-11-21 22:18:44,042 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 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)
[2024-11-21 22:18:44,042 INFO  L276                IsEmpty]: Start isEmpty. Operand 1784 states and 2018 transitions.
[2024-11-21 22:18:44,044 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 347
[2024-11-21 22:18:44,044 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:18:44,044 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, 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, 2, 2, 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]
[2024-11-21 22:18:44,056 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-21 22:18:44,245 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:18:44,245 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:18:44,246 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:18:44,246 INFO  L85        PathProgramCache]: Analyzing trace with hash 246905886, now seen corresponding path program 1 times
[2024-11-21 22:18:44,246 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:18:44,246 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320787893]
[2024-11-21 22:18:44,246 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:44,246 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:18:44,298 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:44,536 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked.
[2024-11-21 22:18:44,537 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:18:44,537 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320787893]
[2024-11-21 22:18:44,537 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320787893] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:18:44,537 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:18:44,537 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:18:44,539 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888457450]
[2024-11-21 22:18:44,539 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:18:44,539 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:18:44,539 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:18:44,540 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:18:44,540 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:18:44,540 INFO  L87              Difference]: Start difference. First operand 1784 states and 2018 transitions. Second operand  has 3 states, 3 states have (on average 81.0) 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)
[2024-11-21 22:18:44,941 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:18:44,943 INFO  L93              Difference]: Finished difference Result 3744 states and 4282 transitions.
[2024-11-21 22:18:44,943 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:18:44,944 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 81.0) 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 346
[2024-11-21 22:18:44,944 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:18:44,950 INFO  L225             Difference]: With dead ends: 3744
[2024-11-21 22:18:44,951 INFO  L226             Difference]: Without dead ends: 2140
[2024-11-21 22:18:44,952 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
[2024-11-21 22:18:44,953 INFO  L432           NwaCegarLoop]: 73 mSDtfsCounter, 101 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-21 22:18:44,953 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 77 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-21 22:18:44,955 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2140 states.
[2024-11-21 22:18:44,978 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140.
[2024-11-21 22:18:44,981 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2140 states, 2139 states have (on average 1.1280972417017299) internal successors, (2413), 2139 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:44,984 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2413 transitions.
[2024-11-21 22:18:44,985 INFO  L78                 Accepts]: Start accepts. Automaton has 2140 states and 2413 transitions. Word has length 346
[2024-11-21 22:18:44,985 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:18:44,985 INFO  L471      AbstractCegarLoop]: Abstraction has 2140 states and 2413 transitions.
[2024-11-21 22:18:44,985 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 81.0) 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)
[2024-11-21 22:18:44,985 INFO  L276                IsEmpty]: Start isEmpty. Operand 2140 states and 2413 transitions.
[2024-11-21 22:18:44,988 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 374
[2024-11-21 22:18:44,988 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:18:44,988 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1]
[2024-11-21 22:18:44,988 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-21 22:18:44,989 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:18:44,989 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:18:44,989 INFO  L85        PathProgramCache]: Analyzing trace with hash -1148447004, now seen corresponding path program 1 times
[2024-11-21 22:18:44,989 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:18:44,989 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587857306]
[2024-11-21 22:18:44,989 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:44,990 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:18:45,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:45,171 INFO  L134       CoverageAnalysis]: Checked inductivity of 475 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked.
[2024-11-21 22:18:45,171 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:18:45,171 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587857306]
[2024-11-21 22:18:45,171 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587857306] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:18:45,171 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:18:45,171 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:18:45,172 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288042762]
[2024-11-21 22:18:45,172 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:18:45,172 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:18:45,172 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:18:45,172 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:18:45,173 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:18:45,173 INFO  L87              Difference]: Start difference. First operand 2140 states and 2413 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)
[2024-11-21 22:18:45,928 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:18:45,928 INFO  L93              Difference]: Finished difference Result 4634 states and 5295 transitions.
[2024-11-21 22:18:45,932 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:18:45,933 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 373
[2024-11-21 22:18:45,933 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:18:45,939 INFO  L225             Difference]: With dead ends: 4634
[2024-11-21 22:18:45,940 INFO  L226             Difference]: Without dead ends: 2674
[2024-11-21 22:18:45,942 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
[2024-11-21 22:18:45,943 INFO  L432           NwaCegarLoop]: 253 mSDtfsCounter, 125 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-21 22:18:45,944 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 258 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-21 22:18:45,946 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2674 states.
[2024-11-21 22:18:45,989 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674.
[2024-11-21 22:18:45,992 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2674 states, 2673 states have (on average 1.1208380097268986) internal successors, (2996), 2673 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:45,997 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2996 transitions.
[2024-11-21 22:18:45,997 INFO  L78                 Accepts]: Start accepts. Automaton has 2674 states and 2996 transitions. Word has length 373
[2024-11-21 22:18:45,998 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:18:45,998 INFO  L471      AbstractCegarLoop]: Abstraction has 2674 states and 2996 transitions.
[2024-11-21 22:18:45,999 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)
[2024-11-21 22:18:45,999 INFO  L276                IsEmpty]: Start isEmpty. Operand 2674 states and 2996 transitions.
[2024-11-21 22:18:46,001 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 381
[2024-11-21 22:18:46,002 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:18:46,002 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:18:46,002 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-21 22:18:46,003 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:18:46,003 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:18:46,004 INFO  L85        PathProgramCache]: Analyzing trace with hash 1347609353, now seen corresponding path program 1 times
[2024-11-21 22:18:46,004 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:18:46,004 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135885439]
[2024-11-21 22:18:46,005 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:46,005 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:18:46,055 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:46,354 INFO  L134       CoverageAnalysis]: Checked inductivity of 475 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked.
[2024-11-21 22:18:46,355 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:18:46,355 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135885439]
[2024-11-21 22:18:46,355 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135885439] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-21 22:18:46,355 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039025233]
[2024-11-21 22:18:46,355 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:46,355 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:18:46,355 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 22:18:46,357 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)
[2024-11-21 22:18:46,358 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-21 22:18:46,454 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:46,456 INFO  L255         TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-21 22:18:46,460 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-21 22:18:46,517 INFO  L134       CoverageAnalysis]: Checked inductivity of 475 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked.
[2024-11-21 22:18:46,517 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-21 22:18:46,518 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039025233] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:18:46,518 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-21 22:18:46,518 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2024-11-21 22:18:46,518 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478468434]
[2024-11-21 22:18:46,518 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:18:46,519 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:18:46,519 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:18:46,519 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:18:46,519 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-21 22:18:46,520 INFO  L87              Difference]: Start difference. First operand 2674 states and 2996 transitions. Second operand  has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:46,962 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:18:46,962 INFO  L93              Difference]: Finished difference Result 6236 states and 7081 transitions.
[2024-11-21 22:18:46,963 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:18:46,963 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 380
[2024-11-21 22:18:46,964 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:18:46,972 INFO  L225             Difference]: With dead ends: 6236
[2024-11-21 22:18:46,973 INFO  L226             Difference]: Without dead ends: 3742
[2024-11-21 22:18:46,976 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-21 22:18:46,976 INFO  L432           NwaCegarLoop]: 54 mSDtfsCounter, 138 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-21 22:18:46,977 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 58 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-21 22:18:46,980 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3742 states.
[2024-11-21 22:18:47,027 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742.
[2024-11-21 22:18:47,032 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3742 states, 3741 states have (on average 1.1242983159583) internal successors, (4206), 3741 states have internal predecessors, (4206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:47,039 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4206 transitions.
[2024-11-21 22:18:47,039 INFO  L78                 Accepts]: Start accepts. Automaton has 3742 states and 4206 transitions. Word has length 380
[2024-11-21 22:18:47,040 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:18:47,040 INFO  L471      AbstractCegarLoop]: Abstraction has 3742 states and 4206 transitions.
[2024-11-21 22:18:47,040 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:47,040 INFO  L276                IsEmpty]: Start isEmpty. Operand 3742 states and 4206 transitions.
[2024-11-21 22:18:47,045 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 456
[2024-11-21 22:18:47,046 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:18:47,046 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:18:47,057 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-21 22:18:47,247 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,SelfDestructingSolverStorable7
[2024-11-21 22:18:47,247 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:18:47,247 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:18:47,247 INFO  L85        PathProgramCache]: Analyzing trace with hash 1274381579, now seen corresponding path program 1 times
[2024-11-21 22:18:47,247 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:18:47,248 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564921202]
[2024-11-21 22:18:47,248 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:47,248 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:18:47,327 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:47,569 INFO  L134       CoverageAnalysis]: Checked inductivity of 768 backedges. 480 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2024-11-21 22:18:47,570 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:18:47,570 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564921202]
[2024-11-21 22:18:47,570 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564921202] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:18:47,570 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:18:47,570 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:18:47,570 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129956864]
[2024-11-21 22:18:47,570 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:18:47,570 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-21 22:18:47,570 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:18:47,571 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-21 22:18:47,571 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-21 22:18:47,571 INFO  L87              Difference]: Start difference. First operand 3742 states and 4206 transitions. Second operand  has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:48,088 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:18:48,089 INFO  L93              Difference]: Finished difference Result 7540 states and 8485 transitions.
[2024-11-21 22:18:48,089 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-21 22:18:48,089 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 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 455
[2024-11-21 22:18:48,090 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:18:48,099 INFO  L225             Difference]: With dead ends: 7540
[2024-11-21 22:18:48,099 INFO  L226             Difference]: Without dead ends: 3920
[2024-11-21 22:18:48,101 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
[2024-11-21 22:18:48,103 INFO  L432           NwaCegarLoop]: 9 mSDtfsCounter, 124 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-21 22:18:48,103 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 17 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-21 22:18:48,107 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3920 states.
[2024-11-21 22:18:48,147 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3742.
[2024-11-21 22:18:48,151 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3742 states, 3741 states have (on average 1.083132852178562) internal successors, (4052), 3741 states have internal predecessors, (4052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:48,159 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4052 transitions.
[2024-11-21 22:18:48,159 INFO  L78                 Accepts]: Start accepts. Automaton has 3742 states and 4052 transitions. Word has length 455
[2024-11-21 22:18:48,160 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:18:48,160 INFO  L471      AbstractCegarLoop]: Abstraction has 3742 states and 4052 transitions.
[2024-11-21 22:18:48,160 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:48,160 INFO  L276                IsEmpty]: Start isEmpty. Operand 3742 states and 4052 transitions.
[2024-11-21 22:18:48,165 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 482
[2024-11-21 22:18:48,165 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:18:48,166 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:18:48,166 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-21 22:18:48,166 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:18:48,166 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:18:48,167 INFO  L85        PathProgramCache]: Analyzing trace with hash 1801199018, now seen corresponding path program 1 times
[2024-11-21 22:18:48,167 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:18:48,167 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650624660]
[2024-11-21 22:18:48,167 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:48,167 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:18:48,218 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:48,547 INFO  L134       CoverageAnalysis]: Checked inductivity of 845 backedges. 520 proven. 11 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked.
[2024-11-21 22:18:48,547 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:18:48,548 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650624660]
[2024-11-21 22:18:48,548 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650624660] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-21 22:18:48,548 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020238411]
[2024-11-21 22:18:48,549 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:48,549 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:18:48,549 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 22:18:48,551 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)
[2024-11-21 22:18:48,552 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-21 22:18:48,670 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:48,672 INFO  L255         TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-21 22:18:48,676 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-21 22:18:48,734 INFO  L134       CoverageAnalysis]: Checked inductivity of 845 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked.
[2024-11-21 22:18:48,734 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-21 22:18:48,734 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020238411] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:18:48,734 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-21 22:18:48,735 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2024-11-21 22:18:48,735 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047223605]
[2024-11-21 22:18:48,735 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:18:48,735 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:18:48,735 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:18:48,736 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:18:48,736 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-21 22:18:48,737 INFO  L87              Difference]: Start difference. First operand 3742 states and 4052 transitions. Second operand  has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:49,135 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:18:49,135 INFO  L93              Difference]: Finished difference Result 7304 states and 7923 transitions.
[2024-11-21 22:18:49,136 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:18:49,136 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 481
[2024-11-21 22:18:49,136 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:18:49,143 INFO  L225             Difference]: With dead ends: 7304
[2024-11-21 22:18:49,144 INFO  L226             Difference]: Without dead ends: 3742
[2024-11-21 22:18:49,146 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-21 22:18:49,147 INFO  L432           NwaCegarLoop]: 209 mSDtfsCounter, 136 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-21 22:18:49,148 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 214 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-21 22:18:49,151 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3742 states.
[2024-11-21 22:18:49,185 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742.
[2024-11-21 22:18:49,188 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3742 states, 3741 states have (on average 1.0737770649558942) internal successors, (4017), 3741 states have internal predecessors, (4017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:49,195 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4017 transitions.
[2024-11-21 22:18:49,196 INFO  L78                 Accepts]: Start accepts. Automaton has 3742 states and 4017 transitions. Word has length 481
[2024-11-21 22:18:49,197 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:18:49,198 INFO  L471      AbstractCegarLoop]: Abstraction has 3742 states and 4017 transitions.
[2024-11-21 22:18:49,198 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:49,198 INFO  L276                IsEmpty]: Start isEmpty. Operand 3742 states and 4017 transitions.
[2024-11-21 22:18:49,201 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 536
[2024-11-21 22:18:49,201 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:18:49,202 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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]
[2024-11-21 22:18:49,209 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-21 22:18:49,402 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:18:49,403 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:18:49,403 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:18:49,403 INFO  L85        PathProgramCache]: Analyzing trace with hash 120362576, now seen corresponding path program 1 times
[2024-11-21 22:18:49,404 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:18:49,404 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638891399]
[2024-11-21 22:18:49,404 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:49,404 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:18:49,480 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:49,657 INFO  L134       CoverageAnalysis]: Checked inductivity of 852 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked.
[2024-11-21 22:18:49,658 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:18:49,658 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638891399]
[2024-11-21 22:18:49,658 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638891399] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:18:49,658 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:18:49,658 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:18:49,659 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024891993]
[2024-11-21 22:18:49,659 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:18:49,659 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:18:49,659 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:18:49,660 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:18:49,660 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:18:49,661 INFO  L87              Difference]: Start difference. First operand 3742 states and 4017 transitions. Second operand  has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:50,165 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:18:50,165 INFO  L93              Difference]: Finished difference Result 7660 states and 8277 transitions.
[2024-11-21 22:18:50,165 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:18:50,166 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 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 535
[2024-11-21 22:18:50,166 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:18:50,176 INFO  L225             Difference]: With dead ends: 7660
[2024-11-21 22:18:50,176 INFO  L226             Difference]: Without dead ends: 4098
[2024-11-21 22:18:50,180 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
[2024-11-21 22:18:50,181 INFO  L432           NwaCegarLoop]: 57 mSDtfsCounter, 126 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-21 22:18:50,181 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 61 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-21 22:18:50,184 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4098 states.
[2024-11-21 22:18:50,232 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 4098.
[2024-11-21 22:18:50,237 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4098 states, 4097 states have (on average 1.0785940932389553) internal successors, (4419), 4097 states have internal predecessors, (4419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:50,241 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4419 transitions.
[2024-11-21 22:18:50,241 INFO  L78                 Accepts]: Start accepts. Automaton has 4098 states and 4419 transitions. Word has length 535
[2024-11-21 22:18:50,242 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:18:50,242 INFO  L471      AbstractCegarLoop]: Abstraction has 4098 states and 4419 transitions.
[2024-11-21 22:18:50,242 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:50,242 INFO  L276                IsEmpty]: Start isEmpty. Operand 4098 states and 4419 transitions.
[2024-11-21 22:18:50,245 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 547
[2024-11-21 22:18:50,245 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:18:50,246 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:18:50,246 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-21 22:18:50,246 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:18:50,246 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:18:50,247 INFO  L85        PathProgramCache]: Analyzing trace with hash -1311829144, now seen corresponding path program 1 times
[2024-11-21 22:18:50,247 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:18:50,247 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535223448]
[2024-11-21 22:18:50,247 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:50,247 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:18:50,298 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:50,675 INFO  L134       CoverageAnalysis]: Checked inductivity of 845 backedges. 463 proven. 68 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked.
[2024-11-21 22:18:50,675 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:18:50,675 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535223448]
[2024-11-21 22:18:50,675 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535223448] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-21 22:18:50,676 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334615078]
[2024-11-21 22:18:50,676 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:50,676 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:18:50,676 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 22:18:50,678 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)
[2024-11-21 22:18:50,679 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-21 22:18:50,828 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:50,831 INFO  L255         TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-21 22:18:50,836 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-21 22:18:51,428 INFO  L134       CoverageAnalysis]: Checked inductivity of 845 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 845 trivial. 0 not checked.
[2024-11-21 22:18:51,428 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-21 22:18:51,428 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [334615078] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:18:51,428 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-21 22:18:51,428 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5
[2024-11-21 22:18:51,429 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962449834]
[2024-11-21 22:18:51,429 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:18:51,429 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:18:51,429 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:18:51,429 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:18:51,430 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-21 22:18:51,430 INFO  L87              Difference]: Start difference. First operand 4098 states and 4419 transitions. Second operand  has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:51,783 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:18:51,783 INFO  L93              Difference]: Finished difference Result 5168 states and 5590 transitions.
[2024-11-21 22:18:51,784 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:18:51,784 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 states have internal predecessors, (179), 0 states have call successors, (0), 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 546
[2024-11-21 22:18:51,784 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:18:51,803 INFO  L225             Difference]: With dead ends: 5168
[2024-11-21 22:18:51,803 INFO  L226             Difference]: Without dead ends: 5166
[2024-11-21 22:18:51,805 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-21 22:18:51,806 INFO  L432           NwaCegarLoop]: 7 mSDtfsCounter, 23 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-21 22:18:51,806 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 11 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-21 22:18:51,811 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5166 states.
[2024-11-21 22:18:51,844 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4276.
[2024-11-21 22:18:51,853 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4276 states, 4275 states have (on average 1.08093567251462) internal successors, (4621), 4275 states have internal predecessors, (4621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:51,861 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4621 transitions.
[2024-11-21 22:18:51,862 INFO  L78                 Accepts]: Start accepts. Automaton has 4276 states and 4621 transitions. Word has length 546
[2024-11-21 22:18:51,863 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:18:51,863 INFO  L471      AbstractCegarLoop]: Abstraction has 4276 states and 4621 transitions.
[2024-11-21 22:18:51,864 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:51,864 INFO  L276                IsEmpty]: Start isEmpty. Operand 4276 states and 4621 transitions.
[2024-11-21 22:18:51,868 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 589
[2024-11-21 22:18:51,868 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:18:51,868 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:18:51,878 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-21 22:18:52,068 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:18:52,069 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:18:52,069 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:18:52,069 INFO  L85        PathProgramCache]: Analyzing trace with hash 538602375, now seen corresponding path program 1 times
[2024-11-21 22:18:52,069 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:18:52,069 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689609166]
[2024-11-21 22:18:52,069 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:52,070 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:18:52,116 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:52,452 INFO  L134       CoverageAnalysis]: Checked inductivity of 1322 backedges. 943 proven. 11 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked.
[2024-11-21 22:18:52,452 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:18:52,452 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689609166]
[2024-11-21 22:18:52,453 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689609166] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-21 22:18:52,453 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380103311]
[2024-11-21 22:18:52,453 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:52,453 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:18:52,453 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 22:18:52,455 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)
[2024-11-21 22:18:52,457 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-21 22:18:52,589 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:52,591 INFO  L255         TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-21 22:18:52,600 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-21 22:18:52,708 INFO  L134       CoverageAnalysis]: Checked inductivity of 1322 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked.
[2024-11-21 22:18:52,708 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-21 22:18:52,708 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380103311] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:18:52,708 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-21 22:18:52,708 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2024-11-21 22:18:52,708 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142617686]
[2024-11-21 22:18:52,709 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:18:52,709 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:18:52,709 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:18:52,710 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:18:52,710 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-21 22:18:52,710 INFO  L87              Difference]: Start difference. First operand 4276 states and 4621 transitions. Second operand  has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:53,087 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:18:53,087 INFO  L93              Difference]: Finished difference Result 5702 states and 6165 transitions.
[2024-11-21 22:18:53,088 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:18:53,088 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 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 588
[2024-11-21 22:18:53,089 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:18:53,096 INFO  L225             Difference]: With dead ends: 5702
[2024-11-21 22:18:53,097 INFO  L226             Difference]: Without dead ends: 5700
[2024-11-21 22:18:53,098 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-21 22:18:53,099 INFO  L432           NwaCegarLoop]: 7 mSDtfsCounter, 146 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-21 22:18:53,099 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 11 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-21 22:18:53,103 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5700 states.
[2024-11-21 22:18:53,156 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 4276.
[2024-11-21 22:18:53,160 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4276 states, 4275 states have (on average 1.08093567251462) internal successors, (4621), 4275 states have internal predecessors, (4621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:53,165 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4621 transitions.
[2024-11-21 22:18:53,166 INFO  L78                 Accepts]: Start accepts. Automaton has 4276 states and 4621 transitions. Word has length 588
[2024-11-21 22:18:53,166 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:18:53,167 INFO  L471      AbstractCegarLoop]: Abstraction has 4276 states and 4621 transitions.
[2024-11-21 22:18:53,167 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:53,167 INFO  L276                IsEmpty]: Start isEmpty. Operand 4276 states and 4621 transitions.
[2024-11-21 22:18:53,174 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 620
[2024-11-21 22:18:53,175 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:18:53,175 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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]
[2024-11-21 22:18:53,190 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-21 22:18:53,375 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,SelfDestructingSolverStorable12
[2024-11-21 22:18:53,376 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:18:53,377 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:18:53,377 INFO  L85        PathProgramCache]: Analyzing trace with hash 1811126405, now seen corresponding path program 1 times
[2024-11-21 22:18:53,377 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:18:53,377 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712726824]
[2024-11-21 22:18:53,377 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:53,377 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:18:53,426 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:53,783 INFO  L134       CoverageAnalysis]: Checked inductivity of 1323 backedges. 944 proven. 11 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked.
[2024-11-21 22:18:53,783 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:18:53,783 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712726824]
[2024-11-21 22:18:53,783 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712726824] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-21 22:18:53,783 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109973637]
[2024-11-21 22:18:53,783 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:53,783 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:18:53,784 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 22:18:53,785 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-21 22:18:53,786 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-21 22:18:53,914 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:53,917 INFO  L255         TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-21 22:18:53,922 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-21 22:18:53,979 INFO  L134       CoverageAnalysis]: Checked inductivity of 1323 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 1054 trivial. 0 not checked.
[2024-11-21 22:18:53,980 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-21 22:18:53,980 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109973637] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:18:53,980 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-21 22:18:53,980 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2024-11-21 22:18:53,980 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980116021]
[2024-11-21 22:18:53,980 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:18:53,981 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:18:53,981 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:18:53,981 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:18:53,982 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-21 22:18:53,982 INFO  L87              Difference]: Start difference. First operand 4276 states and 4621 transitions. Second operand  has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:54,278 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:18:54,278 INFO  L93              Difference]: Finished difference Result 5524 states and 5971 transitions.
[2024-11-21 22:18:54,278 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:18:54,278 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 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 619
[2024-11-21 22:18:54,279 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:18:54,285 INFO  L225             Difference]: With dead ends: 5524
[2024-11-21 22:18:54,285 INFO  L226             Difference]: Without dead ends: 5522
[2024-11-21 22:18:54,286 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 618 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-21 22:18:54,286 INFO  L432           NwaCegarLoop]: 7 mSDtfsCounter, 146 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-21 22:18:54,286 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 11 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-21 22:18:54,289 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5522 states.
[2024-11-21 22:18:54,318 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 4276.
[2024-11-21 22:18:54,321 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4276 states, 4275 states have (on average 1.08093567251462) internal successors, (4621), 4275 states have internal predecessors, (4621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:54,323 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4621 transitions.
[2024-11-21 22:18:54,324 INFO  L78                 Accepts]: Start accepts. Automaton has 4276 states and 4621 transitions. Word has length 619
[2024-11-21 22:18:54,324 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:18:54,324 INFO  L471      AbstractCegarLoop]: Abstraction has 4276 states and 4621 transitions.
[2024-11-21 22:18:54,324 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:54,324 INFO  L276                IsEmpty]: Start isEmpty. Operand 4276 states and 4621 transitions.
[2024-11-21 22:18:54,328 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 629
[2024-11-21 22:18:54,328 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:18:54,329 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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]
[2024-11-21 22:18:54,336 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-21 22:18:54,532 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:18:54,533 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:18:54,533 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:18:54,533 INFO  L85        PathProgramCache]: Analyzing trace with hash -1748481757, now seen corresponding path program 1 times
[2024-11-21 22:18:54,533 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:18:54,533 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556968386]
[2024-11-21 22:18:54,534 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:54,534 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:18:54,610 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:54,949 INFO  L134       CoverageAnalysis]: Checked inductivity of 1323 backedges. 944 proven. 11 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked.
[2024-11-21 22:18:54,950 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:18:54,950 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556968386]
[2024-11-21 22:18:54,950 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556968386] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-21 22:18:54,950 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978007922]
[2024-11-21 22:18:54,950 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:54,950 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:18:54,950 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 22:18:54,952 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-21 22:18:54,953 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-21 22:18:55,088 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:55,091 INFO  L255         TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-21 22:18:55,099 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-21 22:18:55,442 INFO  L134       CoverageAnalysis]: Checked inductivity of 1323 backedges. 639 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked.
[2024-11-21 22:18:55,442 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-21 22:18:55,442 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978007922] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:18:55,442 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-21 22:18:55,442 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5
[2024-11-21 22:18:55,442 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885271689]
[2024-11-21 22:18:55,443 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:18:55,443 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:18:55,443 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:18:55,444 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:18:55,444 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-21 22:18:55,444 INFO  L87              Difference]: Start difference. First operand 4276 states and 4621 transitions. Second operand  has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:55,755 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:18:55,756 INFO  L93              Difference]: Finished difference Result 9440 states and 10230 transitions.
[2024-11-21 22:18:55,756 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:18:55,756 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 0 states have call successors, (0), 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 628
[2024-11-21 22:18:55,756 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:18:55,762 INFO  L225             Difference]: With dead ends: 9440
[2024-11-21 22:18:55,762 INFO  L226             Difference]: Without dead ends: 5344
[2024-11-21 22:18:55,766 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 627 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-21 22:18:55,766 INFO  L432           NwaCegarLoop]: 46 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-21 22:18:55,766 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 50 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-21 22:18:55,769 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5344 states.
[2024-11-21 22:18:55,802 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5344.
[2024-11-21 22:18:55,806 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5344 states, 5343 states have (on average 1.0758001122964627) internal successors, (5748), 5343 states have internal predecessors, (5748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:55,810 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5748 transitions.
[2024-11-21 22:18:55,810 INFO  L78                 Accepts]: Start accepts. Automaton has 5344 states and 5748 transitions. Word has length 628
[2024-11-21 22:18:55,810 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:18:55,810 INFO  L471      AbstractCegarLoop]: Abstraction has 5344 states and 5748 transitions.
[2024-11-21 22:18:55,810 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:55,811 INFO  L276                IsEmpty]: Start isEmpty. Operand 5344 states and 5748 transitions.
[2024-11-21 22:18:55,816 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 698
[2024-11-21 22:18:55,816 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:18:55,817 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, 7, 7, 7, 7, 7, 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, 5, 5, 4, 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]
[2024-11-21 22:18:55,825 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-21 22:18:56,017 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:18:56,018 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:18:56,018 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:18:56,018 INFO  L85        PathProgramCache]: Analyzing trace with hash 1282632347, now seen corresponding path program 1 times
[2024-11-21 22:18:56,018 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:18:56,018 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800513867]
[2024-11-21 22:18:56,019 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:56,019 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:18:56,073 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:56,423 INFO  L134       CoverageAnalysis]: Checked inductivity of 1721 backedges. 1191 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked.
[2024-11-21 22:18:56,423 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:18:56,423 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800513867]
[2024-11-21 22:18:56,423 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800513867] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:18:56,424 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:18:56,424 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:18:56,424 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963649644]
[2024-11-21 22:18:56,424 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:18:56,424 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:18:56,424 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:18:56,425 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:18:56,425 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:18:56,425 INFO  L87              Difference]: Start difference. First operand 5344 states and 5748 transitions. Second operand  has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:56,732 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:18:56,732 INFO  L93              Difference]: Finished difference Result 10864 states and 11694 transitions.
[2024-11-21 22:18:56,732 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:18:56,733 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 697
[2024-11-21 22:18:56,733 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:18:56,739 INFO  L225             Difference]: With dead ends: 10864
[2024-11-21 22:18:56,739 INFO  L226             Difference]: Without dead ends: 5700
[2024-11-21 22:18:56,743 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
[2024-11-21 22:18:56,744 INFO  L432           NwaCegarLoop]: 240 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-21 22:18:56,744 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 245 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-21 22:18:56,747 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5700 states.
[2024-11-21 22:18:56,780 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5166.
[2024-11-21 22:18:56,784 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5166 states, 5165 states have (on average 1.0772507260406583) internal successors, (5564), 5165 states have internal predecessors, (5564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:56,788 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5564 transitions.
[2024-11-21 22:18:56,788 INFO  L78                 Accepts]: Start accepts. Automaton has 5166 states and 5564 transitions. Word has length 697
[2024-11-21 22:18:56,788 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:18:56,788 INFO  L471      AbstractCegarLoop]: Abstraction has 5166 states and 5564 transitions.
[2024-11-21 22:18:56,789 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:56,789 INFO  L276                IsEmpty]: Start isEmpty. Operand 5166 states and 5564 transitions.
[2024-11-21 22:18:56,797 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 705
[2024-11-21 22:18:56,798 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:18:56,798 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, 7, 7, 7, 7, 7, 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, 5, 5, 4, 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]
[2024-11-21 22:18:56,798 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-21 22:18:56,798 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:18:56,798 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:18:56,799 INFO  L85        PathProgramCache]: Analyzing trace with hash -1285598144, now seen corresponding path program 1 times
[2024-11-21 22:18:56,799 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:18:56,799 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894025100]
[2024-11-21 22:18:56,799 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:56,799 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:18:56,869 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:57,107 INFO  L134       CoverageAnalysis]: Checked inductivity of 1730 backedges. 1200 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked.
[2024-11-21 22:18:57,108 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:18:57,108 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894025100]
[2024-11-21 22:18:57,108 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894025100] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:18:57,108 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:18:57,108 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:18:57,108 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26896851]
[2024-11-21 22:18:57,108 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:18:57,108 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:18:57,109 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:18:57,109 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:18:57,109 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:18:57,109 INFO  L87              Difference]: Start difference. First operand 5166 states and 5564 transitions. Second operand  has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:57,496 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:18:57,497 INFO  L93              Difference]: Finished difference Result 11220 states and 12115 transitions.
[2024-11-21 22:18:57,497 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:18:57,497 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 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 704
[2024-11-21 22:18:57,497 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:18:57,504 INFO  L225             Difference]: With dead ends: 11220
[2024-11-21 22:18:57,504 INFO  L226             Difference]: Without dead ends: 6234
[2024-11-21 22:18:57,508 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
[2024-11-21 22:18:57,508 INFO  L432           NwaCegarLoop]: 197 mSDtfsCounter, 114 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-21 22:18:57,509 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 201 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-21 22:18:57,512 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6234 states.
[2024-11-21 22:18:57,560 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 5522.
[2024-11-21 22:18:57,564 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5522 states, 5521 states have (on average 1.0597717804745517) internal successors, (5851), 5521 states have internal predecessors, (5851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:57,568 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5851 transitions.
[2024-11-21 22:18:57,568 INFO  L78                 Accepts]: Start accepts. Automaton has 5522 states and 5851 transitions. Word has length 704
[2024-11-21 22:18:57,568 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:18:57,568 INFO  L471      AbstractCegarLoop]: Abstraction has 5522 states and 5851 transitions.
[2024-11-21 22:18:57,569 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:57,569 INFO  L276                IsEmpty]: Start isEmpty. Operand 5522 states and 5851 transitions.
[2024-11-21 22:18:57,575 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 782
[2024-11-21 22:18:57,575 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:18:57,575 INFO  L215           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 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]
[2024-11-21 22:18:57,576 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-21 22:18:57,576 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:18:57,576 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:18:57,576 INFO  L85        PathProgramCache]: Analyzing trace with hash -1250623350, now seen corresponding path program 1 times
[2024-11-21 22:18:57,576 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:18:57,577 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921897379]
[2024-11-21 22:18:57,577 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:57,577 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:18:57,627 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:57,926 INFO  L134       CoverageAnalysis]: Checked inductivity of 2237 backedges. 1638 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked.
[2024-11-21 22:18:57,927 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:18:57,927 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921897379]
[2024-11-21 22:18:57,927 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921897379] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:18:57,927 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:18:57,927 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:18:57,928 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049098706]
[2024-11-21 22:18:57,928 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:18:57,928 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:18:57,928 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:18:57,929 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:18:57,929 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:18:57,929 INFO  L87              Difference]: Start difference. First operand 5522 states and 5851 transitions. Second operand  has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:58,230 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:18:58,230 INFO  L93              Difference]: Finished difference Result 10864 states and 11521 transitions.
[2024-11-21 22:18:58,230 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:18:58,230 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 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 781
[2024-11-21 22:18:58,231 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:18:58,236 INFO  L225             Difference]: With dead ends: 10864
[2024-11-21 22:18:58,236 INFO  L226             Difference]: Without dead ends: 5522
[2024-11-21 22:18:58,240 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
[2024-11-21 22:18:58,240 INFO  L432           NwaCegarLoop]: 238 mSDtfsCounter, 102 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-21 22:18:58,241 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 243 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-21 22:18:58,243 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5522 states.
[2024-11-21 22:18:58,274 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5344.
[2024-11-21 22:18:58,277 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5344 states, 5343 states have (on average 1.0567097136440202) internal successors, (5646), 5343 states have internal predecessors, (5646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:58,281 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5646 transitions.
[2024-11-21 22:18:58,281 INFO  L78                 Accepts]: Start accepts. Automaton has 5344 states and 5646 transitions. Word has length 781
[2024-11-21 22:18:58,282 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:18:58,282 INFO  L471      AbstractCegarLoop]: Abstraction has 5344 states and 5646 transitions.
[2024-11-21 22:18:58,282 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:58,282 INFO  L276                IsEmpty]: Start isEmpty. Operand 5344 states and 5646 transitions.
[2024-11-21 22:18:58,289 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 901
[2024-11-21 22:18:58,290 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:18:58,290 INFO  L215           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:18:58,290 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-21 22:18:58,290 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:18:58,291 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:18:58,291 INFO  L85        PathProgramCache]: Analyzing trace with hash 2118539318, now seen corresponding path program 1 times
[2024-11-21 22:18:58,291 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:18:58,291 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234305350]
[2024-11-21 22:18:58,291 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:58,291 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:18:58,358 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:58,685 INFO  L134       CoverageAnalysis]: Checked inductivity of 2666 backedges. 2026 proven. 110 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked.
[2024-11-21 22:18:58,685 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:18:58,685 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234305350]
[2024-11-21 22:18:58,685 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234305350] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-21 22:18:58,685 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233192421]
[2024-11-21 22:18:58,686 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:18:58,686 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:18:58,686 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 22:18:58,688 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-21 22:18:58,689 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-21 22:18:58,905 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:18:58,908 INFO  L255         TraceCheckSpWp]: Trace formula consists of 1101 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-21 22:18:58,914 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-21 22:18:59,130 INFO  L134       CoverageAnalysis]: Checked inductivity of 2666 backedges. 2026 proven. 110 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked.
[2024-11-21 22:18:59,130 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-21 22:18:59,356 INFO  L134       CoverageAnalysis]: Checked inductivity of 2666 backedges. 2026 proven. 110 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked.
[2024-11-21 22:18:59,357 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [233192421] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-21 22:18:59,357 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-21 22:18:59,357 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6
[2024-11-21 22:18:59,357 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352371146]
[2024-11-21 22:18:59,357 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-21 22:18:59,360 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-21 22:18:59,360 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:18:59,361 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-21 22:18:59,361 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2024-11-21 22:18:59,361 INFO  L87              Difference]: Start difference. First operand 5344 states and 5646 transitions. Second operand  has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:59,987 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:18:59,987 INFO  L93              Difference]: Finished difference Result 12286 states and 13001 transitions.
[2024-11-21 22:18:59,988 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-21 22:18:59,988 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 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 900
[2024-11-21 22:18:59,988 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:18:59,989 INFO  L225             Difference]: With dead ends: 12286
[2024-11-21 22:18:59,989 INFO  L226             Difference]: Without dead ends: 0
[2024-11-21 22:18:59,995 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1802 GetRequests, 1798 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2024-11-21 22:18:59,995 INFO  L432           NwaCegarLoop]: 53 mSDtfsCounter, 266 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-21 22:18:59,995 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 65 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-21 22:18:59,996 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-21 22:18:59,996 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-21 22:18:59,996 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:59,996 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-21 22:18:59,996 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 900
[2024-11-21 22:18:59,996 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:18:59,996 INFO  L471      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-21 22:18:59,997 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:18:59,997 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-21 22:18:59,997 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-21 22:18:59,999 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-21 22:19:00,007 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2024-11-21 22:19:00,199 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:19:00,203 INFO  L407         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:19:00,204 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-21 22:19:00,917 INFO  L170   ceAbstractionStarter]: Computing trace abstraction results
[2024-11-21 22:19:00,931 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:19:00 BoogieIcfgContainer
[2024-11-21 22:19:00,931 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-21 22:19:00,931 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-21 22:19:00,931 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-11-21 22:19:00,932 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-11-21 22:19:00,932 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:38" (3/4) ...
[2024-11-21 22:19:00,934 INFO  L142         WitnessPrinter]: Generating witness for correct program
[2024-11-21 22:19:00,948 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2024-11-21 22:19:00,949 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-21 22:19:00,950 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-21 22:19:00,950 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-21 22:19:01,053 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-21 22:19:01,053 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-21 22:19:01,053 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-21 22:19:01,054 INFO  L158              Benchmark]: Toolchain (without parser) took 24215.65ms. Allocated memory was 182.5MB in the beginning and 778.0MB in the end (delta: 595.6MB). Free memory was 111.7MB in the beginning and 335.2MB in the end (delta: -223.5MB). Peak memory consumption was 372.9MB. Max. memory is 16.1GB.
[2024-11-21 22:19:01,054 INFO  L158              Benchmark]: CDTParser took 1.57ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 80.2MB in the end (delta: 134.4kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-21 22:19:01,054 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 555.60ms. Allocated memory is still 182.5MB. Free memory was 111.4MB in the beginning and 134.6MB in the end (delta: -23.2MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB.
[2024-11-21 22:19:01,054 INFO  L158              Benchmark]: Boogie Procedure Inliner took 94.59ms. Allocated memory is still 182.5MB. Free memory was 134.6MB in the beginning and 125.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-21 22:19:01,055 INFO  L158              Benchmark]: Boogie Preprocessor took 98.94ms. Allocated memory is still 182.5MB. Free memory was 125.2MB in the beginning and 112.5MB in the end (delta: 12.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2024-11-21 22:19:01,055 INFO  L158              Benchmark]: RCFGBuilder took 965.44ms. Allocated memory is still 182.5MB. Free memory was 111.6MB in the beginning and 89.3MB in the end (delta: 22.3MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB.
[2024-11-21 22:19:01,055 INFO  L158              Benchmark]: TraceAbstraction took 22373.80ms. Allocated memory was 182.5MB in the beginning and 778.0MB in the end (delta: 595.6MB). Free memory was 89.3MB in the beginning and 349.8MB in the end (delta: -260.5MB). Peak memory consumption was 412.6MB. Max. memory is 16.1GB.
[2024-11-21 22:19:01,055 INFO  L158              Benchmark]: Witness Printer took 122.03ms. Allocated memory is still 778.0MB. Free memory was 349.8MB in the beginning and 335.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2024-11-21 22:19:01,057 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 1.57ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 80.2MB in the end (delta: 134.4kB). There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 555.60ms. Allocated memory is still 182.5MB. Free memory was 111.4MB in the beginning and 134.6MB in the end (delta: -23.2MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 94.59ms. Allocated memory is still 182.5MB. Free memory was 134.6MB in the beginning and 125.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 98.94ms. Allocated memory is still 182.5MB. Free memory was 125.2MB in the beginning and 112.5MB in the end (delta: 12.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
 * RCFGBuilder took 965.44ms. Allocated memory is still 182.5MB. Free memory was 111.6MB in the beginning and 89.3MB in the end (delta: 22.3MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB.
 * TraceAbstraction took 22373.80ms. Allocated memory was 182.5MB in the beginning and 778.0MB in the end (delta: 595.6MB). Free memory was 89.3MB in the beginning and 349.8MB in the end (delta: -260.5MB). Peak memory consumption was 412.6MB. Max. memory is 16.1GB.
 * Witness Printer took 122.03ms. Allocated memory is still 778.0MB. Free memory was 349.8MB in the beginning and 335.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 182]: a call to reach_error is unreachable
    For all program executions holds that a call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.6s, OverallIterations: 19, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2628 SdHoareTripleChecker+Valid, 8.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2628 mSDsluCounter, 1998 SdHoareTripleChecker+Invalid, 6.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 105 mSDsCounter, 1169 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9926 IncrementalHoareTripleChecker+Invalid, 11095 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1169 mSolverCounterUnsat, 1893 mSDtfsCounter, 9926 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5438 GetRequests, 5392 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5522occurred in iteration=17, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 19 MinimizatonAttempts, 5340 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 13396 NumberOfCodeBlocks, 13396 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 14268 ConstructedInterpolants, 0 QuantifiedInterpolants, 44529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5643 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 28 InterpolantComputations, 18 PerfectInterpolantSequences, 28866/29588 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 890]: Loop Invariant
    Derived loop invariant: ((((((((a24 == 1) && (10 <= a21)) || ((a24 == 1) && (a21 <= 8))) || (((a12 <= 80) && (a24 == 1)) && (0 <= ((long long) a12 + 42)))) || (((a24 == 1) && (a15 <= 8)) && (((long long) 49 + a12) <= 0))) || (((a15 <= 8) && (a21 <= 7)) && (((long long) 49 + a12) <= 0))) || (((a24 == 1) && (9 <= a15)) && (0 <= ((long long) a12 + 42)))) || (((6 <= a15) && (a24 == 1)) && (a15 <= 8)))
RESULT: Ultimate proved your program to be correct!
[2024-11-21 22:19:01,071 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE