./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version fca748b1
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.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 a476129b1600ab93482417c4ebe15d373b743970a04c4bdd8ca1478cbccf2de7
--- Real Ultimate output ---
This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m
[2024-11-19 22:26:11,969 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-19 22:26:12,025 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-19 22:26:12,028 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-19 22:26:12,028 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-19 22:26:12,052 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-19 22:26:12,052 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-19 22:26:12,052 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-19 22:26:12,052 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-19 22:26:12,053 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-19 22:26:12,053 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-19 22:26:12,055 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-19 22:26:12,055 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-19 22:26:12,056 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-19 22:26:12,057 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-19 22:26:12,057 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-19 22:26:12,057 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-19 22:26:12,058 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-19 22:26:12,058 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-19 22:26:12,059 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-19 22:26:12,059 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-19 22:26:12,062 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-19 22:26:12,062 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-19 22:26:12,062 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-19 22:26:12,062 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-19 22:26:12,063 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-19 22:26:12,063 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-19 22:26:12,064 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-19 22:26:12,064 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-19 22:26:12,064 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-19 22:26:12,064 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-19 22:26:12,065 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-19 22:26:12,065 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-19 22:26:12,065 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-19 22:26:12,066 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-19 22:26:12,066 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-19 22:26:12,066 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-19 22:26:12,066 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-19 22:26:12,066 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-19 22:26:12,067 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-19 22:26:12,067 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-19 22:26:12,067 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-19 22:26:12,067 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 -> a476129b1600ab93482417c4ebe15d373b743970a04c4bdd8ca1478cbccf2de7
[2024-11-19 22:26:12,245 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-19 22:26:12,265 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-19 22:26:12,267 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-19 22:26:12,267 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-19 22:26:12,268 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-19 22:26:12,269 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c
[2024-11-19 22:26:13,432 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-19 22:26:13,634 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-19 22:26:13,634 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c
[2024-11-19 22:26:13,643 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/703fcc13c/bb3c55ffc7944163bbbcf359813e1b1d/FLAGb6f9723e3
[2024-11-19 22:26:14,006 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/703fcc13c/bb3c55ffc7944163bbbcf359813e1b1d
[2024-11-19 22:26:14,008 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-19 22:26:14,009 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-19 22:26:14,010 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-19 22:26:14,010 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-19 22:26:14,016 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-19 22:26:14,017 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:26:14" (1/1) ...
[2024-11-19 22:26:14,017 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bfecc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:14, skipping insertion in model container
[2024-11-19 22:26:14,017 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:26:14" (1/1) ...
[2024-11-19 22:26:14,054 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-19 22:26:14,321 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/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c[28307,28320]
[2024-11-19 22:26:14,324 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-19 22:26:14,333 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-19 22:26:14,398 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/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c[28307,28320]
[2024-11-19 22:26:14,398 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-19 22:26:14,412 INFO  L204         MainTranslator]: Completed translation
[2024-11-19 22:26:14,412 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:14 WrapperNode
[2024-11-19 22:26:14,412 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-19 22:26:14,413 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-19 22:26:14,413 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-19 22:26:14,413 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-19 22:26:14,418 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:14" (1/1) ...
[2024-11-19 22:26:14,428 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:14" (1/1) ...
[2024-11-19 22:26:14,456 INFO  L138                Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 951
[2024-11-19 22:26:14,457 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-19 22:26:14,457 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-19 22:26:14,458 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-19 22:26:14,458 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-19 22:26:14,466 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:14" (1/1) ...
[2024-11-19 22:26:14,466 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:14" (1/1) ...
[2024-11-19 22:26:14,469 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:14" (1/1) ...
[2024-11-19 22:26:14,491 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].
[2024-11-19 22:26:14,491 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:14" (1/1) ...
[2024-11-19 22:26:14,491 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:14" (1/1) ...
[2024-11-19 22:26:14,505 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:14" (1/1) ...
[2024-11-19 22:26:14,518 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:14" (1/1) ...
[2024-11-19 22:26:14,525 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:14" (1/1) ...
[2024-11-19 22:26:14,527 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:14" (1/1) ...
[2024-11-19 22:26:14,532 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-19 22:26:14,533 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-19 22:26:14,533 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-19 22:26:14,533 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-19 22:26:14,534 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:14" (1/1) ...
[2024-11-19 22:26:14,538 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-19 22:26:14,548 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 22:26:14,562 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)
[2024-11-19 22:26:14,564 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
[2024-11-19 22:26:14,593 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-19 22:26:14,594 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-19 22:26:14,594 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-19 22:26:14,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-19 22:26:14,678 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-19 22:26:14,680 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-19 22:26:15,457 INFO  L?                        ?]: Removed 111 outVars from TransFormulas that were not future-live.
[2024-11-19 22:26:15,458 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-19 22:26:15,476 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-19 22:26:15,479 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-19 22:26:15,479 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:26:15 BoogieIcfgContainer
[2024-11-19 22:26:15,479 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-19 22:26:15,481 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-19 22:26:15,481 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-19 22:26:15,484 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-19 22:26:15,484 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:26:14" (1/3) ...
[2024-11-19 22:26:15,485 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22b959d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:26:15, skipping insertion in model container
[2024-11-19 22:26:15,485 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:14" (2/3) ...
[2024-11-19 22:26:15,485 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22b959d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:26:15, skipping insertion in model container
[2024-11-19 22:26:15,486 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:26:15" (3/3) ...
[2024-11-19 22:26:15,486 INFO  L112   eAbstractionObserver]: Analyzing ICFG pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c
[2024-11-19 22:26:15,500 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-19 22:26:15,501 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-19 22:26:15,559 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-19 22:26:15,564 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;@222772b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-19 22:26:15,564 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-19 22:26:15,569 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 280 states, 278 states have (on average 1.8345323741007193) internal successors, (510), 279 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:15,578 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-11-19 22:26:15,578 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:15,579 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:15,579 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:15,583 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:15,583 INFO  L85        PathProgramCache]: Analyzing trace with hash -875885192, now seen corresponding path program 1 times
[2024-11-19 22:26:15,590 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:15,590 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951694541]
[2024-11-19 22:26:15,590 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:15,590 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:15,781 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:15,938 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 22:26:15,938 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:15,939 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951694541]
[2024-11-19 22:26:15,940 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951694541] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:15,940 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:15,940 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 22:26:15,941 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048779531]
[2024-11-19 22:26:15,942 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:15,945 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-19 22:26:15,945 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:15,964 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-19 22:26:15,964 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-19 22:26:15,967 INFO  L87              Difference]: Start difference. First operand  has 280 states, 278 states have (on average 1.8345323741007193) internal successors, (510), 279 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:15,997 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:15,998 INFO  L93              Difference]: Finished difference Result 365 states and 663 transitions.
[2024-11-19 22:26:16,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-19 22:26:16,001 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77
[2024-11-19 22:26:16,001 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:16,009 INFO  L225             Difference]: With dead ends: 365
[2024-11-19 22:26:16,009 INFO  L226             Difference]: Without dead ends: 276
[2024-11-19 22:26:16,011 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-19 22:26:16,013 INFO  L432           NwaCegarLoop]: 503 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:16,014 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 22:26:16,027 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 276 states.
[2024-11-19 22:26:16,051 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276.
[2024-11-19 22:26:16,052 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 276 states, 275 states have (on average 1.829090909090909) internal successors, (503), 275 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:16,054 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 503 transitions.
[2024-11-19 22:26:16,057 INFO  L78                 Accepts]: Start accepts. Automaton has 276 states and 503 transitions. Word has length 77
[2024-11-19 22:26:16,058 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 22:26:16,058 INFO  L471      AbstractCegarLoop]: Abstraction has 276 states and 503 transitions.
[2024-11-19 22:26:16,058 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:16,058 INFO  L276                IsEmpty]: Start isEmpty. Operand 276 states and 503 transitions.
[2024-11-19 22:26:16,060 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-11-19 22:26:16,060 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:16,061 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:16,061 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-19 22:26:16,061 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:16,062 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:16,062 INFO  L85        PathProgramCache]: Analyzing trace with hash -1009898698, now seen corresponding path program 1 times
[2024-11-19 22:26:16,062 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:16,062 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748682116]
[2024-11-19 22:26:16,062 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:16,062 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:16,119 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:16,359 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 22:26:16,360 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:16,360 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748682116]
[2024-11-19 22:26:16,360 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748682116] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:16,360 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:16,360 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-19 22:26:16,360 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458085786]
[2024-11-19 22:26:16,361 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:16,362 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-19 22:26:16,362 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:16,362 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-19 22:26:16,362 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-19 22:26:16,363 INFO  L87              Difference]: Start difference. First operand 276 states and 503 transitions. Second operand  has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:16,446 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:16,450 INFO  L93              Difference]: Finished difference Result 364 states and 656 transitions.
[2024-11-19 22:26:16,451 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-19 22:26:16,451 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77
[2024-11-19 22:26:16,451 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:16,453 INFO  L225             Difference]: With dead ends: 364
[2024-11-19 22:26:16,454 INFO  L226             Difference]: Without dead ends: 276
[2024-11-19 22:26:16,454 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-19 22:26:16,456 INFO  L432           NwaCegarLoop]: 501 mSDtfsCounter, 0 mSDsluCounter, 1456 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:16,456 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1957 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-19 22:26:16,457 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 276 states.
[2024-11-19 22:26:16,472 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276.
[2024-11-19 22:26:16,473 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 276 states, 275 states have (on average 1.6763636363636363) internal successors, (461), 275 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:16,474 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 461 transitions.
[2024-11-19 22:26:16,474 INFO  L78                 Accepts]: Start accepts. Automaton has 276 states and 461 transitions. Word has length 77
[2024-11-19 22:26:16,474 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 22:26:16,475 INFO  L471      AbstractCegarLoop]: Abstraction has 276 states and 461 transitions.
[2024-11-19 22:26:16,475 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:16,475 INFO  L276                IsEmpty]: Start isEmpty. Operand 276 states and 461 transitions.
[2024-11-19 22:26:16,478 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 119
[2024-11-19 22:26:16,481 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:16,481 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:16,482 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-19 22:26:16,482 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:16,483 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:16,483 INFO  L85        PathProgramCache]: Analyzing trace with hash 1489902654, now seen corresponding path program 1 times
[2024-11-19 22:26:16,483 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:16,484 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770088301]
[2024-11-19 22:26:16,484 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:16,484 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:16,533 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:16,686 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 22:26:16,686 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:16,686 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770088301]
[2024-11-19 22:26:16,686 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770088301] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:16,686 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:16,686 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 22:26:16,687 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656582682]
[2024-11-19 22:26:16,687 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:16,687 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 22:26:16,687 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:16,688 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 22:26:16,688 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 22:26:16,689 INFO  L87              Difference]: Start difference. First operand 276 states and 461 transitions. Second operand  has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:16,730 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:16,731 INFO  L93              Difference]: Finished difference Result 433 states and 738 transitions.
[2024-11-19 22:26:16,731 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 22:26:16,731 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 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 118
[2024-11-19 22:26:16,732 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:16,733 INFO  L225             Difference]: With dead ends: 433
[2024-11-19 22:26:16,733 INFO  L226             Difference]: Without dead ends: 349
[2024-11-19 22:26:16,734 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
[2024-11-19 22:26:16,735 INFO  L432           NwaCegarLoop]: 567 mSDtfsCounter, 120 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:16,735 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 977 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 22:26:16,736 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 349 states.
[2024-11-19 22:26:16,750 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 347.
[2024-11-19 22:26:16,753 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 347 states, 346 states have (on average 1.6849710982658959) internal successors, (583), 346 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:16,754 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 583 transitions.
[2024-11-19 22:26:16,755 INFO  L78                 Accepts]: Start accepts. Automaton has 347 states and 583 transitions. Word has length 118
[2024-11-19 22:26:16,755 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 22:26:16,755 INFO  L471      AbstractCegarLoop]: Abstraction has 347 states and 583 transitions.
[2024-11-19 22:26:16,755 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:16,755 INFO  L276                IsEmpty]: Start isEmpty. Operand 347 states and 583 transitions.
[2024-11-19 22:26:16,759 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 122
[2024-11-19 22:26:16,759 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:16,759 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:16,760 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-19 22:26:16,760 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:16,760 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:16,760 INFO  L85        PathProgramCache]: Analyzing trace with hash -1238623676, now seen corresponding path program 1 times
[2024-11-19 22:26:16,761 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:16,761 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791819269]
[2024-11-19 22:26:16,761 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:16,761 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:16,804 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:16,878 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 22:26:16,879 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:16,879 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791819269]
[2024-11-19 22:26:16,879 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791819269] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:16,879 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:16,879 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 22:26:16,879 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29859532]
[2024-11-19 22:26:16,880 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:16,880 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 22:26:16,880 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:16,881 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 22:26:16,881 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 22:26:16,882 INFO  L87              Difference]: Start difference. First operand 347 states and 583 transitions. Second operand  has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:16,902 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:16,902 INFO  L93              Difference]: Finished difference Result 503 states and 858 transitions.
[2024-11-19 22:26:16,903 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 22:26:16,903 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 121
[2024-11-19 22:26:16,904 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:16,906 INFO  L225             Difference]: With dead ends: 503
[2024-11-19 22:26:16,906 INFO  L226             Difference]: Without dead ends: 419
[2024-11-19 22:26:16,907 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
[2024-11-19 22:26:16,910 INFO  L432           NwaCegarLoop]: 572 mSDtfsCounter, 129 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:16,910 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 1011 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 22:26:16,911 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 419 states.
[2024-11-19 22:26:16,919 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 417.
[2024-11-19 22:26:16,920 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 417 states, 416 states have (on average 1.6971153846153846) internal successors, (706), 416 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:16,921 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 706 transitions.
[2024-11-19 22:26:16,922 INFO  L78                 Accepts]: Start accepts. Automaton has 417 states and 706 transitions. Word has length 121
[2024-11-19 22:26:16,922 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 22:26:16,922 INFO  L471      AbstractCegarLoop]: Abstraction has 417 states and 706 transitions.
[2024-11-19 22:26:16,923 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:16,923 INFO  L276                IsEmpty]: Start isEmpty. Operand 417 states and 706 transitions.
[2024-11-19 22:26:16,923 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 122
[2024-11-19 22:26:16,924 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:16,924 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:16,924 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-19 22:26:16,924 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:16,925 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:16,925 INFO  L85        PathProgramCache]: Analyzing trace with hash 942583131, now seen corresponding path program 1 times
[2024-11-19 22:26:16,925 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:16,925 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847179382]
[2024-11-19 22:26:16,925 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:16,926 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:16,960 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:17,064 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 22:26:17,064 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:17,065 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847179382]
[2024-11-19 22:26:17,065 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847179382] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:17,065 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:17,065 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 22:26:17,065 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464784496]
[2024-11-19 22:26:17,065 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:17,066 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 22:26:17,067 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:17,067 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 22:26:17,067 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 22:26:17,067 INFO  L87              Difference]: Start difference. First operand 417 states and 706 transitions. Second operand  has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:17,101 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:17,102 INFO  L93              Difference]: Finished difference Result 836 states and 1439 transitions.
[2024-11-19 22:26:17,102 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 22:26:17,102 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 121
[2024-11-19 22:26:17,102 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:17,104 INFO  L225             Difference]: With dead ends: 836
[2024-11-19 22:26:17,104 INFO  L226             Difference]: Without dead ends: 613
[2024-11-19 22:26:17,105 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
[2024-11-19 22:26:17,108 INFO  L432           NwaCegarLoop]: 569 mSDtfsCounter, 121 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:17,108 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 988 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 22:26:17,109 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 613 states.
[2024-11-19 22:26:17,120 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 611.
[2024-11-19 22:26:17,121 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 611 states, 610 states have (on average 1.7098360655737705) internal successors, (1043), 610 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:17,125 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1043 transitions.
[2024-11-19 22:26:17,125 INFO  L78                 Accepts]: Start accepts. Automaton has 611 states and 1043 transitions. Word has length 121
[2024-11-19 22:26:17,126 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 22:26:17,126 INFO  L471      AbstractCegarLoop]: Abstraction has 611 states and 1043 transitions.
[2024-11-19 22:26:17,126 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:17,126 INFO  L276                IsEmpty]: Start isEmpty. Operand 611 states and 1043 transitions.
[2024-11-19 22:26:17,127 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-11-19 22:26:17,127 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:17,127 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:17,127 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-19 22:26:17,127 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:17,127 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:17,128 INFO  L85        PathProgramCache]: Analyzing trace with hash -2091470231, now seen corresponding path program 1 times
[2024-11-19 22:26:17,128 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:17,128 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054174590]
[2024-11-19 22:26:17,128 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:17,128 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:17,158 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:17,215 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 22:26:17,215 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:17,215 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054174590]
[2024-11-19 22:26:17,216 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054174590] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:17,216 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:17,216 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 22:26:17,216 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531742376]
[2024-11-19 22:26:17,217 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:17,217 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 22:26:17,217 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:17,217 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 22:26:17,218 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 22:26:17,218 INFO  L87              Difference]: Start difference. First operand 611 states and 1043 transitions. Second operand  has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:17,240 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:17,241 INFO  L93              Difference]: Finished difference Result 1022 states and 1760 transitions.
[2024-11-19 22:26:17,241 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 22:26:17,242 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 124
[2024-11-19 22:26:17,242 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:17,245 INFO  L225             Difference]: With dead ends: 1022
[2024-11-19 22:26:17,245 INFO  L226             Difference]: Without dead ends: 799
[2024-11-19 22:26:17,247 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
[2024-11-19 22:26:17,248 INFO  L432           NwaCegarLoop]: 561 mSDtfsCounter, 122 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:17,249 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 1001 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 22:26:17,250 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 799 states.
[2024-11-19 22:26:17,259 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 797.
[2024-11-19 22:26:17,261 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 797 states, 796 states have (on average 1.7123115577889447) internal successors, (1363), 796 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:17,263 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1363 transitions.
[2024-11-19 22:26:17,264 INFO  L78                 Accepts]: Start accepts. Automaton has 797 states and 1363 transitions. Word has length 124
[2024-11-19 22:26:17,264 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 22:26:17,266 INFO  L471      AbstractCegarLoop]: Abstraction has 797 states and 1363 transitions.
[2024-11-19 22:26:17,266 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:17,266 INFO  L276                IsEmpty]: Start isEmpty. Operand 797 states and 1363 transitions.
[2024-11-19 22:26:17,267 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-11-19 22:26:17,267 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:17,267 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:17,267 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-19 22:26:17,267 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:17,268 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:17,268 INFO  L85        PathProgramCache]: Analyzing trace with hash -2013778626, now seen corresponding path program 1 times
[2024-11-19 22:26:17,268 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:17,268 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115327460]
[2024-11-19 22:26:17,268 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:17,268 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:17,303 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:17,410 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 22:26:17,410 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:17,411 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115327460]
[2024-11-19 22:26:17,411 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115327460] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:17,411 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:17,411 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 22:26:17,411 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010566851]
[2024-11-19 22:26:17,411 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:17,412 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 22:26:17,412 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:17,412 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 22:26:17,412 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 22:26:17,412 INFO  L87              Difference]: Start difference. First operand 797 states and 1363 transitions. Second operand  has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:17,450 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:17,450 INFO  L93              Difference]: Finished difference Result 1908 states and 3288 transitions.
[2024-11-19 22:26:17,451 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 22:26:17,451 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 124
[2024-11-19 22:26:17,451 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:17,455 INFO  L225             Difference]: With dead ends: 1908
[2024-11-19 22:26:17,455 INFO  L226             Difference]: Without dead ends: 1312
[2024-11-19 22:26:17,455 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
[2024-11-19 22:26:17,456 INFO  L432           NwaCegarLoop]: 559 mSDtfsCounter, 114 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:17,456 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 979 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 22:26:17,458 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1312 states.
[2024-11-19 22:26:17,471 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1310.
[2024-11-19 22:26:17,473 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1310 states, 1309 states have (on average 1.7104660045836517) internal successors, (2239), 1309 states have internal predecessors, (2239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:17,475 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 2239 transitions.
[2024-11-19 22:26:17,476 INFO  L78                 Accepts]: Start accepts. Automaton has 1310 states and 2239 transitions. Word has length 124
[2024-11-19 22:26:17,476 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 22:26:17,476 INFO  L471      AbstractCegarLoop]: Abstraction has 1310 states and 2239 transitions.
[2024-11-19 22:26:17,476 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:17,476 INFO  L276                IsEmpty]: Start isEmpty. Operand 1310 states and 2239 transitions.
[2024-11-19 22:26:17,477 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 128
[2024-11-19 22:26:17,477 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:17,477 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:17,477 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-19 22:26:17,477 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:17,478 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:17,478 INFO  L85        PathProgramCache]: Analyzing trace with hash -1950081272, now seen corresponding path program 1 times
[2024-11-19 22:26:17,478 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:17,478 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316020079]
[2024-11-19 22:26:17,478 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:17,478 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:17,506 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:17,561 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 22:26:17,561 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:17,561 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316020079]
[2024-11-19 22:26:17,561 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316020079] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:17,561 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:17,562 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 22:26:17,562 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763178274]
[2024-11-19 22:26:17,562 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:17,563 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 22:26:17,563 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:17,563 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 22:26:17,564 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 22:26:17,564 INFO  L87              Difference]: Start difference. First operand 1310 states and 2239 transitions. Second operand  has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:17,597 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:17,597 INFO  L93              Difference]: Finished difference Result 2383 states and 4094 transitions.
[2024-11-19 22:26:17,597 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 22:26:17,598 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 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 127
[2024-11-19 22:26:17,598 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:17,603 INFO  L225             Difference]: With dead ends: 2383
[2024-11-19 22:26:17,603 INFO  L226             Difference]: Without dead ends: 1787
[2024-11-19 22:26:17,604 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
[2024-11-19 22:26:17,605 INFO  L432           NwaCegarLoop]: 550 mSDtfsCounter, 115 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:17,606 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 991 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 22:26:17,608 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1787 states.
[2024-11-19 22:26:17,629 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1787 to 1785.
[2024-11-19 22:26:17,631 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1785 states, 1784 states have (on average 1.7062780269058295) internal successors, (3044), 1784 states have internal predecessors, (3044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:17,635 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 1785 states and 3044 transitions.
[2024-11-19 22:26:17,635 INFO  L78                 Accepts]: Start accepts. Automaton has 1785 states and 3044 transitions. Word has length 127
[2024-11-19 22:26:17,635 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 22:26:17,636 INFO  L471      AbstractCegarLoop]: Abstraction has 1785 states and 3044 transitions.
[2024-11-19 22:26:17,636 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:17,636 INFO  L276                IsEmpty]: Start isEmpty. Operand 1785 states and 3044 transitions.
[2024-11-19 22:26:17,637 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 128
[2024-11-19 22:26:17,637 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:17,637 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:17,637 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-19 22:26:17,637 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:17,638 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:17,638 INFO  L85        PathProgramCache]: Analyzing trace with hash 114997535, now seen corresponding path program 1 times
[2024-11-19 22:26:17,638 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:17,638 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439936418]
[2024-11-19 22:26:17,638 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:17,638 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:17,666 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:17,777 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 22:26:17,778 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:17,778 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439936418]
[2024-11-19 22:26:17,778 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439936418] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:17,778 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:17,778 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 22:26:17,779 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856237138]
[2024-11-19 22:26:17,779 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:17,779 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 22:26:17,779 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:17,779 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 22:26:17,779 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 22:26:17,780 INFO  L87              Difference]: Start difference. First operand 1785 states and 3044 transitions. Second operand  has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:17,823 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:17,824 INFO  L93              Difference]: Finished difference Result 4696 states and 8005 transitions.
[2024-11-19 22:26:17,825 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 22:26:17,825 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 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 127
[2024-11-19 22:26:17,825 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:17,834 INFO  L225             Difference]: With dead ends: 4696
[2024-11-19 22:26:17,834 INFO  L226             Difference]: Without dead ends: 3119
[2024-11-19 22:26:17,836 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
[2024-11-19 22:26:17,836 INFO  L432           NwaCegarLoop]: 549 mSDtfsCounter, 107 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:17,837 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 970 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 22:26:17,838 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3119 states.
[2024-11-19 22:26:17,882 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3119 to 3117.
[2024-11-19 22:26:17,887 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3117 states, 3116 states have (on average 1.6903080872913991) internal successors, (5267), 3116 states have internal predecessors, (5267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:17,893 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 5267 transitions.
[2024-11-19 22:26:17,893 INFO  L78                 Accepts]: Start accepts. Automaton has 3117 states and 5267 transitions. Word has length 127
[2024-11-19 22:26:17,893 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 22:26:17,894 INFO  L471      AbstractCegarLoop]: Abstraction has 3117 states and 5267 transitions.
[2024-11-19 22:26:17,894 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:17,894 INFO  L276                IsEmpty]: Start isEmpty. Operand 3117 states and 5267 transitions.
[2024-11-19 22:26:17,895 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 131
[2024-11-19 22:26:17,895 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:17,895 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:17,895 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-19 22:26:17,895 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:17,895 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:17,896 INFO  L85        PathProgramCache]: Analyzing trace with hash -1099622423, now seen corresponding path program 1 times
[2024-11-19 22:26:17,896 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:17,896 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012157047]
[2024-11-19 22:26:17,896 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:17,896 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:17,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:17,985 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 22:26:17,986 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:17,986 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012157047]
[2024-11-19 22:26:17,986 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012157047] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:17,986 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:17,986 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 22:26:17,986 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990337290]
[2024-11-19 22:26:17,986 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:17,986 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 22:26:17,986 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:17,987 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 22:26:17,987 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 22:26:17,987 INFO  L87              Difference]: Start difference. First operand 3117 states and 5267 transitions. Second operand  has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:18,060 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:18,062 INFO  L93              Difference]: Finished difference Result 5900 states and 9996 transitions.
[2024-11-19 22:26:18,062 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 22:26:18,063 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 130
[2024-11-19 22:26:18,063 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:18,075 INFO  L225             Difference]: With dead ends: 5900
[2024-11-19 22:26:18,075 INFO  L226             Difference]: Without dead ends: 4323
[2024-11-19 22:26:18,077 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
[2024-11-19 22:26:18,077 INFO  L432           NwaCegarLoop]: 539 mSDtfsCounter, 108 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:18,078 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 981 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 22:26:18,081 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4323 states.
[2024-11-19 22:26:18,148 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4323 to 4321.
[2024-11-19 22:26:18,154 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4321 states, 4320 states have (on average 1.679861111111111) internal successors, (7257), 4320 states have internal predecessors, (7257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:18,165 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4321 states to 4321 states and 7257 transitions.
[2024-11-19 22:26:18,165 INFO  L78                 Accepts]: Start accepts. Automaton has 4321 states and 7257 transitions. Word has length 130
[2024-11-19 22:26:18,165 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 22:26:18,165 INFO  L471      AbstractCegarLoop]: Abstraction has 4321 states and 7257 transitions.
[2024-11-19 22:26:18,166 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:18,166 INFO  L276                IsEmpty]: Start isEmpty. Operand 4321 states and 7257 transitions.
[2024-11-19 22:26:18,167 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 131
[2024-11-19 22:26:18,167 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:18,167 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:18,167 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-19 22:26:18,167 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:18,168 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:18,168 INFO  L85        PathProgramCache]: Analyzing trace with hash 1139060542, now seen corresponding path program 1 times
[2024-11-19 22:26:18,168 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:18,168 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013636016]
[2024-11-19 22:26:18,168 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:18,168 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:18,198 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:18,344 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 22:26:18,345 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:18,345 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013636016]
[2024-11-19 22:26:18,345 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013636016] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:18,345 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:18,345 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-19 22:26:18,345 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823816420]
[2024-11-19 22:26:18,345 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:18,346 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-19 22:26:18,346 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:18,346 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-19 22:26:18,346 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-19 22:26:18,346 INFO  L87              Difference]: Start difference. First operand 4321 states and 7257 transitions. Second operand  has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:18,698 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:18,698 INFO  L93              Difference]: Finished difference Result 27701 states and 47018 transitions.
[2024-11-19 22:26:18,698 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-19 22:26:18,699 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 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 130
[2024-11-19 22:26:18,699 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:18,762 INFO  L225             Difference]: With dead ends: 27701
[2024-11-19 22:26:18,763 INFO  L226             Difference]: Without dead ends: 23595
[2024-11-19 22:26:18,776 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2024-11-19 22:26:18,777 INFO  L432           NwaCegarLoop]: 451 mSDtfsCounter, 1656 mSDsluCounter, 2313 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1656 SdHoareTripleChecker+Valid, 2764 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:18,778 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1656 Valid, 2764 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-19 22:26:18,797 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 23595 states.
[2024-11-19 22:26:19,030 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 23595 to 8277.
[2024-11-19 22:26:19,045 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8277 states, 8276 states have (on average 1.6718221362977284) internal successors, (13836), 8276 states have internal predecessors, (13836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:19,069 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8277 states to 8277 states and 13836 transitions.
[2024-11-19 22:26:19,070 INFO  L78                 Accepts]: Start accepts. Automaton has 8277 states and 13836 transitions. Word has length 130
[2024-11-19 22:26:19,070 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 22:26:19,070 INFO  L471      AbstractCegarLoop]: Abstraction has 8277 states and 13836 transitions.
[2024-11-19 22:26:19,070 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:19,070 INFO  L276                IsEmpty]: Start isEmpty. Operand 8277 states and 13836 transitions.
[2024-11-19 22:26:19,071 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-11-19 22:26:19,071 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:19,071 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:19,072 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-19 22:26:19,072 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:19,072 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:19,072 INFO  L85        PathProgramCache]: Analyzing trace with hash -1143468315, now seen corresponding path program 1 times
[2024-11-19 22:26:19,072 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:19,072 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777664919]
[2024-11-19 22:26:19,072 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:19,073 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:19,105 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:19,204 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 22:26:19,205 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:19,205 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777664919]
[2024-11-19 22:26:19,205 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777664919] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:19,205 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:19,205 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-19 22:26:19,205 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460291424]
[2024-11-19 22:26:19,205 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:19,205 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-19 22:26:19,205 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:19,206 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-19 22:26:19,206 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-19 22:26:19,206 INFO  L87              Difference]: Start difference. First operand 8277 states and 13836 transitions. Second operand  has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 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)
[2024-11-19 22:26:19,428 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:19,428 INFO  L93              Difference]: Finished difference Result 27383 states and 46124 transitions.
[2024-11-19 22:26:19,429 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 22:26:19,429 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 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
[2024-11-19 22:26:19,429 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:19,458 INFO  L225             Difference]: With dead ends: 27383
[2024-11-19 22:26:19,458 INFO  L226             Difference]: Without dead ends: 19321
[2024-11-19 22:26:19,470 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-19 22:26:19,471 INFO  L432           NwaCegarLoop]: 449 mSDtfsCounter, 423 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:19,472 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 1350 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 22:26:19,487 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19321 states.
[2024-11-19 22:26:19,775 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19321 to 13744.
[2024-11-19 22:26:19,802 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13744 states, 13743 states have (on average 1.6712508185985593) internal successors, (22968), 13743 states have internal predecessors, (22968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:19,831 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13744 states to 13744 states and 22968 transitions.
[2024-11-19 22:26:19,832 INFO  L78                 Accepts]: Start accepts. Automaton has 13744 states and 22968 transitions. Word has length 131
[2024-11-19 22:26:19,832 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 22:26:19,833 INFO  L471      AbstractCegarLoop]: Abstraction has 13744 states and 22968 transitions.
[2024-11-19 22:26:19,833 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 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)
[2024-11-19 22:26:19,833 INFO  L276                IsEmpty]: Start isEmpty. Operand 13744 states and 22968 transitions.
[2024-11-19 22:26:19,834 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2024-11-19 22:26:19,834 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:19,835 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:19,835 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-19 22:26:19,835 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:19,835 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:19,836 INFO  L85        PathProgramCache]: Analyzing trace with hash 1281585493, now seen corresponding path program 1 times
[2024-11-19 22:26:19,836 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:19,836 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442051874]
[2024-11-19 22:26:19,836 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:19,836 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:19,877 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:20,000 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 22:26:20,001 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:20,002 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442051874]
[2024-11-19 22:26:20,002 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442051874] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:20,002 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:20,002 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-19 22:26:20,002 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605678947]
[2024-11-19 22:26:20,002 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:20,003 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-19 22:26:20,003 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:20,004 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-19 22:26:20,004 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-19 22:26:20,004 INFO  L87              Difference]: Start difference. First operand 13744 states and 22968 transitions. Second operand  has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:20,397 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:20,397 INFO  L93              Difference]: Finished difference Result 45169 states and 75660 transitions.
[2024-11-19 22:26:20,398 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 22:26:20,398 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 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 132
[2024-11-19 22:26:20,398 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:20,446 INFO  L225             Difference]: With dead ends: 45169
[2024-11-19 22:26:20,447 INFO  L226             Difference]: Without dead ends: 31640
[2024-11-19 22:26:20,468 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-19 22:26:20,469 INFO  L432           NwaCegarLoop]: 450 mSDtfsCounter, 421 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:20,469 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 1453 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 22:26:20,489 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31640 states.
[2024-11-19 22:26:20,891 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31640 to 22603.
[2024-11-19 22:26:20,924 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 22603 states, 22602 states have (on average 1.662065303955402) internal successors, (37566), 22602 states have internal predecessors, (37566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:20,958 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22603 states to 22603 states and 37566 transitions.
[2024-11-19 22:26:20,959 INFO  L78                 Accepts]: Start accepts. Automaton has 22603 states and 37566 transitions. Word has length 132
[2024-11-19 22:26:20,960 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 22:26:20,960 INFO  L471      AbstractCegarLoop]: Abstraction has 22603 states and 37566 transitions.
[2024-11-19 22:26:20,960 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:20,960 INFO  L276                IsEmpty]: Start isEmpty. Operand 22603 states and 37566 transitions.
[2024-11-19 22:26:20,961 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2024-11-19 22:26:20,961 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:20,961 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:20,961 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-19 22:26:20,961 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:20,962 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:20,962 INFO  L85        PathProgramCache]: Analyzing trace with hash -682153444, now seen corresponding path program 1 times
[2024-11-19 22:26:20,962 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:20,962 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813508296]
[2024-11-19 22:26:20,962 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:20,962 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:21,100 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:21,187 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 22:26:21,188 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:21,188 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813508296]
[2024-11-19 22:26:21,188 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813508296] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:21,188 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:21,188 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-19 22:26:21,188 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708213415]
[2024-11-19 22:26:21,188 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:21,189 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-19 22:26:21,189 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:21,189 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-19 22:26:21,189 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-19 22:26:21,190 INFO  L87              Difference]: Start difference. First operand 22603 states and 37566 transitions. Second operand  has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:21,786 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:21,786 INFO  L93              Difference]: Finished difference Result 74067 states and 123372 transitions.
[2024-11-19 22:26:21,787 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 22:26:21,787 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 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 133
[2024-11-19 22:26:21,787 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:21,877 INFO  L225             Difference]: With dead ends: 74067
[2024-11-19 22:26:21,878 INFO  L226             Difference]: Without dead ends: 51679
[2024-11-19 22:26:21,904 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-19 22:26:21,905 INFO  L432           NwaCegarLoop]: 450 mSDtfsCounter, 419 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1455 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:21,905 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 1455 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 22:26:21,934 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 51679 states.
[2024-11-19 22:26:22,626 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 51679 to 36998.
[2024-11-19 22:26:22,671 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 36998 states, 36997 states have (on average 1.6528907749276969) internal successors, (61152), 36997 states have internal predecessors, (61152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:22,726 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 36998 states to 36998 states and 61152 transitions.
[2024-11-19 22:26:22,728 INFO  L78                 Accepts]: Start accepts. Automaton has 36998 states and 61152 transitions. Word has length 133
[2024-11-19 22:26:22,728 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 22:26:22,729 INFO  L471      AbstractCegarLoop]: Abstraction has 36998 states and 61152 transitions.
[2024-11-19 22:26:22,729 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:22,729 INFO  L276                IsEmpty]: Start isEmpty. Operand 36998 states and 61152 transitions.
[2024-11-19 22:26:22,730 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2024-11-19 22:26:22,730 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:22,730 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:22,730 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-19 22:26:22,730 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:22,730 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:22,730 INFO  L85        PathProgramCache]: Analyzing trace with hash -1259514004, now seen corresponding path program 1 times
[2024-11-19 22:26:22,731 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:22,731 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216680090]
[2024-11-19 22:26:22,731 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:22,731 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:22,759 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:22,848 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 22:26:22,848 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:22,848 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216680090]
[2024-11-19 22:26:22,848 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216680090] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:22,848 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:22,848 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-19 22:26:22,848 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527736763]
[2024-11-19 22:26:22,849 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:22,849 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-19 22:26:22,849 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:22,849 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-19 22:26:22,849 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-19 22:26:22,850 INFO  L87              Difference]: Start difference. First operand 36998 states and 61152 transitions. Second operand  has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:23,786 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:23,787 INFO  L93              Difference]: Finished difference Result 119893 states and 198604 transitions.
[2024-11-19 22:26:23,787 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 22:26:23,787 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 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 134
[2024-11-19 22:26:23,788 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:23,922 INFO  L225             Difference]: With dead ends: 119893
[2024-11-19 22:26:23,923 INFO  L226             Difference]: Without dead ends: 83110
[2024-11-19 22:26:23,963 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-19 22:26:23,963 INFO  L432           NwaCegarLoop]: 456 mSDtfsCounter, 417 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:23,963 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 1463 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 22:26:24,019 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 83110 states.
[2024-11-19 22:26:25,047 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 83110 to 59829.
[2024-11-19 22:26:25,127 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 59829 states, 59828 states have (on average 1.6440128367988234) internal successors, (98358), 59828 states have internal predecessors, (98358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:25,219 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 59829 states to 59829 states and 98358 transitions.
[2024-11-19 22:26:25,224 INFO  L78                 Accepts]: Start accepts. Automaton has 59829 states and 98358 transitions. Word has length 134
[2024-11-19 22:26:25,224 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 22:26:25,224 INFO  L471      AbstractCegarLoop]: Abstraction has 59829 states and 98358 transitions.
[2024-11-19 22:26:25,224 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:25,225 INFO  L276                IsEmpty]: Start isEmpty. Operand 59829 states and 98358 transitions.
[2024-11-19 22:26:25,225 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 137
[2024-11-19 22:26:25,225 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:25,225 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:25,226 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-19 22:26:25,226 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:25,226 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:25,226 INFO  L85        PathProgramCache]: Analyzing trace with hash -1428334268, now seen corresponding path program 1 times
[2024-11-19 22:26:25,226 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:25,227 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767212862]
[2024-11-19 22:26:25,227 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:25,227 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:25,258 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:25,629 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 22:26:25,629 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:25,629 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767212862]
[2024-11-19 22:26:25,629 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767212862] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:25,629 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:25,629 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-19 22:26:25,630 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818467541]
[2024-11-19 22:26:25,630 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:25,630 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-19 22:26:25,630 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:25,630 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-19 22:26:25,631 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-19 22:26:25,631 INFO  L87              Difference]: Start difference. First operand 59829 states and 98358 transitions. Second operand  has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:26,439 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:26,439 INFO  L93              Difference]: Finished difference Result 119445 states and 196373 transitions.
[2024-11-19 22:26:26,439 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-19 22:26:26,439 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 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 136
[2024-11-19 22:26:26,440 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:26,522 INFO  L225             Difference]: With dead ends: 119445
[2024-11-19 22:26:26,522 INFO  L226             Difference]: Without dead ends: 59831
[2024-11-19 22:26:26,556 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2024-11-19 22:26:26,558 INFO  L432           NwaCegarLoop]: 454 mSDtfsCounter, 324 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:26,559 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 1729 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-19 22:26:26,591 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 59831 states.
[2024-11-19 22:26:27,353 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 59831 to 59829.
[2024-11-19 22:26:27,409 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 59829 states, 59828 states have (on average 1.6335662231730963) internal successors, (97733), 59828 states have internal predecessors, (97733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:27,658 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 59829 states to 59829 states and 97733 transitions.
[2024-11-19 22:26:27,667 INFO  L78                 Accepts]: Start accepts. Automaton has 59829 states and 97733 transitions. Word has length 136
[2024-11-19 22:26:27,668 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 22:26:27,668 INFO  L471      AbstractCegarLoop]: Abstraction has 59829 states and 97733 transitions.
[2024-11-19 22:26:27,668 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:27,668 INFO  L276                IsEmpty]: Start isEmpty. Operand 59829 states and 97733 transitions.
[2024-11-19 22:26:27,675 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2024-11-19 22:26:27,675 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:27,675 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:27,675 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-19 22:26:27,675 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:27,679 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:27,682 INFO  L85        PathProgramCache]: Analyzing trace with hash 1982359839, now seen corresponding path program 1 times
[2024-11-19 22:26:27,682 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:27,683 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573505547]
[2024-11-19 22:26:27,683 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:27,683 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:27,723 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:28,032 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 22:26:28,032 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:28,032 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573505547]
[2024-11-19 22:26:28,032 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573505547] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:28,032 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:28,033 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-19 22:26:28,033 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221471059]
[2024-11-19 22:26:28,033 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:28,033 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-19 22:26:28,033 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:28,034 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-19 22:26:28,034 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-19 22:26:28,034 INFO  L87              Difference]: Start difference. First operand 59829 states and 97733 transitions. Second operand  has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:29,216 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:29,216 INFO  L93              Difference]: Finished difference Result 174963 states and 286257 transitions.
[2024-11-19 22:26:29,217 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-19 22:26:29,217 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 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 139
[2024-11-19 22:26:29,217 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:29,394 INFO  L225             Difference]: With dead ends: 174963
[2024-11-19 22:26:29,395 INFO  L226             Difference]: Without dead ends: 115349
[2024-11-19 22:26:29,435 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2024-11-19 22:26:29,437 INFO  L432           NwaCegarLoop]: 449 mSDtfsCounter, 108 mSDsluCounter, 1724 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:29,437 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 2173 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-19 22:26:29,500 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 115349 states.
[2024-11-19 22:26:31,356 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 115349 to 115347.
[2024-11-19 22:26:31,450 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 115347 states, 115346 states have (on average 1.6199087961437761) internal successors, (186850), 115346 states have internal predecessors, (186850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:31,624 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 115347 states to 115347 states and 186850 transitions.
[2024-11-19 22:26:31,630 INFO  L78                 Accepts]: Start accepts. Automaton has 115347 states and 186850 transitions. Word has length 139
[2024-11-19 22:26:31,630 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 22:26:31,630 INFO  L471      AbstractCegarLoop]: Abstraction has 115347 states and 186850 transitions.
[2024-11-19 22:26:31,630 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:31,631 INFO  L276                IsEmpty]: Start isEmpty. Operand 115347 states and 186850 transitions.
[2024-11-19 22:26:31,631 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2024-11-19 22:26:31,631 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:31,631 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:31,632 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-19 22:26:31,632 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:31,632 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:31,632 INFO  L85        PathProgramCache]: Analyzing trace with hash 892267437, now seen corresponding path program 1 times
[2024-11-19 22:26:31,632 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:31,632 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765831828]
[2024-11-19 22:26:31,632 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:31,633 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:31,708 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:32,268 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 22:26:32,268 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:32,268 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765831828]
[2024-11-19 22:26:32,268 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765831828] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:32,268 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:32,268 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-19 22:26:32,269 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799443662]
[2024-11-19 22:26:32,269 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:32,269 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-19 22:26:32,269 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:32,269 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-19 22:26:32,269 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-19 22:26:32,270 INFO  L87              Difference]: Start difference. First operand 115347 states and 186850 transitions. Second operand  has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:33,111 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:33,112 INFO  L93              Difference]: Finished difference Result 121157 states and 194595 transitions.
[2024-11-19 22:26:33,112 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-19 22:26:33,112 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 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 140
[2024-11-19 22:26:33,113 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:33,272 INFO  L225             Difference]: With dead ends: 121157
[2024-11-19 22:26:33,272 INFO  L226             Difference]: Without dead ends: 121155
[2024-11-19 22:26:33,298 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-19 22:26:33,299 INFO  L432           NwaCegarLoop]: 455 mSDtfsCounter, 0 mSDsluCounter, 2711 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:33,299 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3166 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 22:26:33,360 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 121155 states.
[2024-11-19 22:26:35,397 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 121155 to 121155.
[2024-11-19 22:26:35,509 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 121155 states, 121154 states have (on average 1.5899681397229972) internal successors, (192631), 121154 states have internal predecessors, (192631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:35,701 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 121155 states to 121155 states and 192631 transitions.
[2024-11-19 22:26:35,708 INFO  L78                 Accepts]: Start accepts. Automaton has 121155 states and 192631 transitions. Word has length 140
[2024-11-19 22:26:35,708 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 22:26:35,708 INFO  L471      AbstractCegarLoop]: Abstraction has 121155 states and 192631 transitions.
[2024-11-19 22:26:35,709 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:35,709 INFO  L276                IsEmpty]: Start isEmpty. Operand 121155 states and 192631 transitions.
[2024-11-19 22:26:35,713 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2024-11-19 22:26:35,713 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:35,714 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:35,714 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-19 22:26:35,714 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:35,714 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:35,714 INFO  L85        PathProgramCache]: Analyzing trace with hash -1970326679, now seen corresponding path program 1 times
[2024-11-19 22:26:35,714 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:35,714 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992992014]
[2024-11-19 22:26:35,714 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:35,715 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:35,748 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:35,811 INFO  L134       CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 22:26:35,811 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:35,811 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992992014]
[2024-11-19 22:26:35,811 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992992014] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:35,812 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:35,812 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 22:26:35,812 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676950023]
[2024-11-19 22:26:35,812 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:35,812 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 22:26:35,812 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:35,813 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 22:26:35,813 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 22:26:35,813 INFO  L87              Difference]: Start difference. First operand 121155 states and 192631 transitions. Second operand  has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:38,361 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:38,361 INFO  L93              Difference]: Finished difference Result 362460 states and 575899 transitions.
[2024-11-19 22:26:38,362 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 22:26:38,362 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 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 175
[2024-11-19 22:26:38,362 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:38,751 INFO  L225             Difference]: With dead ends: 362460
[2024-11-19 22:26:38,751 INFO  L226             Difference]: Without dead ends: 241366
[2024-11-19 22:26:38,818 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
[2024-11-19 22:26:38,819 INFO  L432           NwaCegarLoop]: 767 mSDtfsCounter, 378 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:38,819 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 1212 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 22:26:38,971 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 241366 states.
[2024-11-19 22:26:42,723 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 241366 to 241364.
[2024-11-19 22:26:42,889 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 241364 states, 241363 states have (on average 1.579019982350236) internal successors, (381117), 241363 states have internal predecessors, (381117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:43,293 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 241364 states to 241364 states and 381117 transitions.
[2024-11-19 22:26:43,302 INFO  L78                 Accepts]: Start accepts. Automaton has 241364 states and 381117 transitions. Word has length 175
[2024-11-19 22:26:43,302 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 22:26:43,302 INFO  L471      AbstractCegarLoop]: Abstraction has 241364 states and 381117 transitions.
[2024-11-19 22:26:43,302 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:43,302 INFO  L276                IsEmpty]: Start isEmpty. Operand 241364 states and 381117 transitions.
[2024-11-19 22:26:43,311 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2024-11-19 22:26:43,311 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 22:26:43,312 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 22:26:43,312 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-11-19 22:26:43,312 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 22:26:43,313 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 22:26:43,313 INFO  L85        PathProgramCache]: Analyzing trace with hash -1522395712, now seen corresponding path program 1 times
[2024-11-19 22:26:43,313 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 22:26:43,313 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20680949]
[2024-11-19 22:26:43,313 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 22:26:43,314 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 22:26:43,347 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 22:26:43,784 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-19 22:26:43,785 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 22:26:43,785 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20680949]
[2024-11-19 22:26:43,785 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20680949] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 22:26:43,785 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 22:26:43,785 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 22:26:43,785 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266600787]
[2024-11-19 22:26:43,785 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 22:26:43,786 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 22:26:43,786 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 22:26:43,786 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 22:26:43,786 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 22:26:43,786 INFO  L87              Difference]: Start difference. First operand 241364 states and 381117 transitions. Second operand  has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 22:26:48,086 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 22:26:48,086 INFO  L93              Difference]: Finished difference Result 722076 states and 1139352 transitions.
[2024-11-19 22:26:48,086 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 22:26:48,087 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 175
[2024-11-19 22:26:48,087 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 22:26:48,905 INFO  L225             Difference]: With dead ends: 722076
[2024-11-19 22:26:48,905 INFO  L226             Difference]: Without dead ends: 480817
[2024-11-19 22:26:49,377 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
[2024-11-19 22:26:49,379 INFO  L432           NwaCegarLoop]: 697 mSDtfsCounter, 319 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 22:26:49,379 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 1142 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 22:26:49,635 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 480817 states.