./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label13.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/eca-rers2012/Problem16_label13.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 b9aac8f1352449724c28b7a3bd33388133fcac9f460e7deaf570c372da3d5e49
--- Real Ultimate output ---
This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m
[2024-11-19 18:25:12,282 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-19 18:25:12,353 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-19 18:25:12,358 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-19 18:25:12,360 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-19 18:25:12,386 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-19 18:25:12,387 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-19 18:25:12,388 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-19 18:25:12,388 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-19 18:25:12,389 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-19 18:25:12,390 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-19 18:25:12,390 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-19 18:25:12,390 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-19 18:25:12,392 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-19 18:25:12,393 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-19 18:25:12,393 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-19 18:25:12,393 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-19 18:25:12,394 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-19 18:25:12,394 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-19 18:25:12,394 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-19 18:25:12,395 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-19 18:25:12,395 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-19 18:25:12,395 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-19 18:25:12,396 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-19 18:25:12,396 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-19 18:25:12,396 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-19 18:25:12,397 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-19 18:25:12,397 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-19 18:25:12,397 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-19 18:25:12,398 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-19 18:25:12,398 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-19 18:25:12,398 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-19 18:25:12,399 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-19 18:25:12,399 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-19 18:25:12,399 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-19 18:25:12,400 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-19 18:25:12,400 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-19 18:25:12,400 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-19 18:25:12,400 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-19 18:25:12,401 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-19 18:25:12,402 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-19 18:25:12,403 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-19 18:25:12,403 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 -> b9aac8f1352449724c28b7a3bd33388133fcac9f460e7deaf570c372da3d5e49
[2024-11-19 18:25:12,693 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-19 18:25:12,717 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-19 18:25:12,721 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-19 18:25:12,722 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-19 18:25:12,722 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-19 18:25:12,724 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label13.c
[2024-11-19 18:25:14,169 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-19 18:25:14,506 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-19 18:25:14,507 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label13.c
[2024-11-19 18:25:14,531 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d02fd4f91/cc0519ced859420f81793795d3e932ae/FLAG0966f4337
[2024-11-19 18:25:14,544 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d02fd4f91/cc0519ced859420f81793795d3e932ae
[2024-11-19 18:25:14,547 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-19 18:25:14,549 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-19 18:25:14,550 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-19 18:25:14,552 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-19 18:25:14,557 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-19 18:25:14,558 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:25:14" (1/1) ...
[2024-11-19 18:25:14,561 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3860c75c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:14, skipping insertion in model container
[2024-11-19 18:25:14,561 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:25:14" (1/1) ...
[2024-11-19 18:25:14,625 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-19 18:25:14,887 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label13.c[5905,5918]
[2024-11-19 18:25:15,247 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-19 18:25:15,261 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-19 18:25:15,286 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label13.c[5905,5918]
[2024-11-19 18:25:15,408 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-19 18:25:15,429 INFO  L204         MainTranslator]: Completed translation
[2024-11-19 18:25:15,429 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:15 WrapperNode
[2024-11-19 18:25:15,430 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-19 18:25:15,431 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-19 18:25:15,431 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-19 18:25:15,432 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-19 18:25:15,438 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:15" (1/1) ...
[2024-11-19 18:25:15,477 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:15" (1/1) ...
[2024-11-19 18:25:15,649 INFO  L138                Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1770
[2024-11-19 18:25:15,650 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-19 18:25:15,650 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-19 18:25:15,651 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-19 18:25:15,651 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-19 18:25:15,662 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:15" (1/1) ...
[2024-11-19 18:25:15,662 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:15" (1/1) ...
[2024-11-19 18:25:15,679 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:15" (1/1) ...
[2024-11-19 18:25:15,734 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 18:25:15,735 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:15" (1/1) ...
[2024-11-19 18:25:15,735 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:15" (1/1) ...
[2024-11-19 18:25:15,801 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:15" (1/1) ...
[2024-11-19 18:25:15,817 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:15" (1/1) ...
[2024-11-19 18:25:15,838 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:15" (1/1) ...
[2024-11-19 18:25:15,849 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:15" (1/1) ...
[2024-11-19 18:25:15,865 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-19 18:25:15,867 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-19 18:25:15,867 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-19 18:25:15,867 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-19 18:25:15,868 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:15" (1/1) ...
[2024-11-19 18:25:15,873 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-19 18:25:15,883 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 18:25:15,901 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 18:25:15,905 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 18:25:15,952 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-19 18:25:15,953 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-19 18:25:15,953 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-19 18:25:15,953 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-19 18:25:16,045 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-19 18:25:16,051 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-19 18:25:18,188 INFO  L?                        ?]: Removed 276 outVars from TransFormulas that were not future-live.
[2024-11-19 18:25:18,189 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-19 18:25:18,222 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-19 18:25:18,225 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-19 18:25:18,225 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:25:18 BoogieIcfgContainer
[2024-11-19 18:25:18,226 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-19 18:25:18,228 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-19 18:25:18,228 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-19 18:25:18,232 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-19 18:25:18,232 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:25:14" (1/3) ...
[2024-11-19 18:25:18,233 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec54a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:25:18, skipping insertion in model container
[2024-11-19 18:25:18,233 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:15" (2/3) ...
[2024-11-19 18:25:18,234 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec54a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:25:18, skipping insertion in model container
[2024-11-19 18:25:18,234 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:25:18" (3/3) ...
[2024-11-19 18:25:18,238 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem16_label13.c
[2024-11-19 18:25:18,255 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-19 18:25:18,256 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-19 18:25:18,335 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-19 18:25:18,342 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;@24237983, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-19 18:25:18,343 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-19 18:25:18,349 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 0 states have call successors, (0), 0 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 18:25:18,358 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-11-19 18:25:18,359 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:18,361 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:25:18,361 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:18,367 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:18,368 INFO  L85        PathProgramCache]: Analyzing trace with hash -2158734, now seen corresponding path program 1 times
[2024-11-19 18:25:18,376 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:18,377 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961540704]
[2024-11-19 18:25:18,377 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:18,377 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:18,513 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:18,768 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 18:25:18,769 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:18,769 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961540704]
[2024-11-19 18:25:18,770 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961540704] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:18,771 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:25:18,771 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:25:18,773 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716834725]
[2024-11-19 18:25:18,773 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:18,780 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:25:18,782 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:18,804 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:25:18,805 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:25:18,809 INFO  L87              Difference]: Start difference. First operand  has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:25:20,437 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:25:20,437 INFO  L93              Difference]: Finished difference Result 1122 states and 2103 transitions.
[2024-11-19 18:25:20,439 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:25:20,440 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56
[2024-11-19 18:25:20,440 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:25:20,457 INFO  L225             Difference]: With dead ends: 1122
[2024-11-19 18:25:20,457 INFO  L226             Difference]: Without dead ends: 662
[2024-11-19 18:25:20,462 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:25:20,468 INFO  L432           NwaCegarLoop]: 246 mSDtfsCounter, 331 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2024-11-19 18:25:20,469 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 254 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2024-11-19 18:25:20,491 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 662 states.
[2024-11-19 18:25:20,554 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662.
[2024-11-19 18:25:20,557 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 662 states, 661 states have (on average 1.518910741301059) internal successors, (1004), 661 states have internal predecessors, (1004), 0 states have call successors, (0), 0 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 18:25:20,559 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1004 transitions.
[2024-11-19 18:25:20,562 INFO  L78                 Accepts]: Start accepts. Automaton has 662 states and 1004 transitions. Word has length 56
[2024-11-19 18:25:20,562 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:25:20,562 INFO  L471      AbstractCegarLoop]: Abstraction has 662 states and 1004 transitions.
[2024-11-19 18:25:20,563 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:25:20,563 INFO  L276                IsEmpty]: Start isEmpty. Operand 662 states and 1004 transitions.
[2024-11-19 18:25:20,566 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-11-19 18:25:20,567 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:20,567 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:25:20,567 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-19 18:25:20,568 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:20,568 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:20,568 INFO  L85        PathProgramCache]: Analyzing trace with hash -2086237172, now seen corresponding path program 1 times
[2024-11-19 18:25:20,569 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:20,569 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268305907]
[2024-11-19 18:25:20,569 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:20,569 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:20,638 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:20,862 INFO  L134       CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:25:20,862 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:20,863 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268305907]
[2024-11-19 18:25:20,863 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268305907] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:20,863 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:25:20,863 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:25:20,863 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485679164]
[2024-11-19 18:25:20,863 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:20,865 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:25:20,865 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:20,866 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:25:20,866 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:25:20,866 INFO  L87              Difference]: Start difference. First operand 662 states and 1004 transitions. Second operand  has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 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 18:25:22,323 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:25:22,324 INFO  L93              Difference]: Finished difference Result 1980 states and 3007 transitions.
[2024-11-19 18:25:22,324 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:25:22,325 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 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 18:25:22,325 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:25:22,330 INFO  L225             Difference]: With dead ends: 1980
[2024-11-19 18:25:22,330 INFO  L226             Difference]: Without dead ends: 1320
[2024-11-19 18:25:22,332 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:25:22,333 INFO  L432           NwaCegarLoop]: 212 mSDtfsCounter, 268 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-19 18:25:22,334 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 217 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-19 18:25:22,335 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1320 states.
[2024-11-19 18:25:22,361 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320.
[2024-11-19 18:25:22,365 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1320 states, 1319 states have (on average 1.4556482183472328) internal successors, (1920), 1319 states have internal predecessors, (1920), 0 states have call successors, (0), 0 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 18:25:22,369 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1920 transitions.
[2024-11-19 18:25:22,370 INFO  L78                 Accepts]: Start accepts. Automaton has 1320 states and 1920 transitions. Word has length 124
[2024-11-19 18:25:22,371 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:25:22,372 INFO  L471      AbstractCegarLoop]: Abstraction has 1320 states and 1920 transitions.
[2024-11-19 18:25:22,372 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 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 18:25:22,372 INFO  L276                IsEmpty]: Start isEmpty. Operand 1320 states and 1920 transitions.
[2024-11-19 18:25:22,375 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2024-11-19 18:25:22,375 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:22,376 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:25:22,376 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-19 18:25:22,376 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:22,377 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:22,377 INFO  L85        PathProgramCache]: Analyzing trace with hash 1143350005, now seen corresponding path program 1 times
[2024-11-19 18:25:22,377 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:22,377 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100878363]
[2024-11-19 18:25:22,377 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:22,377 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:22,405 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:22,499 INFO  L134       CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:25:22,500 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:22,500 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100878363]
[2024-11-19 18:25:22,500 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100878363] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:22,500 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:25:22,500 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:25:22,501 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535932855]
[2024-11-19 18:25:22,501 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:22,501 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:25:22,502 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:22,502 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:25:22,502 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:25:22,503 INFO  L87              Difference]: Start difference. First operand 1320 states and 1920 transitions. Second operand  has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:25:23,819 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:25:23,820 INFO  L93              Difference]: Finished difference Result 3954 states and 5755 transitions.
[2024-11-19 18:25:23,820 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:25:23,820 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135
[2024-11-19 18:25:23,821 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:25:23,830 INFO  L225             Difference]: With dead ends: 3954
[2024-11-19 18:25:23,831 INFO  L226             Difference]: Without dead ends: 2636
[2024-11-19 18:25:23,833 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:25:23,834 INFO  L432           NwaCegarLoop]: 151 mSDtfsCounter, 369 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-11-19 18:25:23,834 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 155 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-11-19 18:25:23,837 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2636 states.
[2024-11-19 18:25:23,887 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636.
[2024-11-19 18:25:23,891 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2636 states, 2635 states have (on average 1.3240986717267553) internal successors, (3489), 2635 states have internal predecessors, (3489), 0 states have call successors, (0), 0 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 18:25:23,896 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 3489 transitions.
[2024-11-19 18:25:23,896 INFO  L78                 Accepts]: Start accepts. Automaton has 2636 states and 3489 transitions. Word has length 135
[2024-11-19 18:25:23,897 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:25:23,897 INFO  L471      AbstractCegarLoop]: Abstraction has 2636 states and 3489 transitions.
[2024-11-19 18:25:23,897 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:25:23,897 INFO  L276                IsEmpty]: Start isEmpty. Operand 2636 states and 3489 transitions.
[2024-11-19 18:25:23,905 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 254
[2024-11-19 18:25:23,905 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:23,906 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:25:23,907 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-19 18:25:23,907 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:23,907 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:23,908 INFO  L85        PathProgramCache]: Analyzing trace with hash 489524018, now seen corresponding path program 1 times
[2024-11-19 18:25:23,908 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:23,908 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380728594]
[2024-11-19 18:25:23,908 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:23,909 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:23,964 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:24,156 INFO  L134       CoverageAnalysis]: Checked inductivity of 172 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked.
[2024-11-19 18:25:24,156 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:24,156 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380728594]
[2024-11-19 18:25:24,157 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380728594] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:24,157 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:25:24,157 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:25:24,157 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588226244]
[2024-11-19 18:25:24,157 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:24,158 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:25:24,158 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:24,160 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:25:24,161 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:25:24,161 INFO  L87              Difference]: Start difference. First operand 2636 states and 3489 transitions. Second operand  has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 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 18:25:25,385 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:25:25,386 INFO  L93              Difference]: Finished difference Result 6586 states and 8545 transitions.
[2024-11-19 18:25:25,386 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:25:25,386 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253
[2024-11-19 18:25:25,388 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:25:25,400 INFO  L225             Difference]: With dead ends: 6586
[2024-11-19 18:25:25,400 INFO  L226             Difference]: Without dead ends: 3952
[2024-11-19 18:25:25,405 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:25:25,407 INFO  L432           NwaCegarLoop]: 80 mSDtfsCounter, 277 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-19 18:25:25,408 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 84 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-19 18:25:25,412 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3952 states.
[2024-11-19 18:25:25,458 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3952.
[2024-11-19 18:25:25,463 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3952 states, 3951 states have (on average 1.216400911161731) internal successors, (4806), 3951 states have internal predecessors, (4806), 0 states have call successors, (0), 0 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 18:25:25,471 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3952 states to 3952 states and 4806 transitions.
[2024-11-19 18:25:25,472 INFO  L78                 Accepts]: Start accepts. Automaton has 3952 states and 4806 transitions. Word has length 253
[2024-11-19 18:25:25,473 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:25:25,473 INFO  L471      AbstractCegarLoop]: Abstraction has 3952 states and 4806 transitions.
[2024-11-19 18:25:25,474 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 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 18:25:25,474 INFO  L276                IsEmpty]: Start isEmpty. Operand 3952 states and 4806 transitions.
[2024-11-19 18:25:25,479 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 302
[2024-11-19 18:25:25,479 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:25,479 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:25:25,480 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-19 18:25:25,480 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:25,480 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:25,481 INFO  L85        PathProgramCache]: Analyzing trace with hash 2007041494, now seen corresponding path program 1 times
[2024-11-19 18:25:25,481 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:25,482 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009929378]
[2024-11-19 18:25:25,482 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:25,482 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:25,543 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:26,137 INFO  L134       CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:25:26,137 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:26,137 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009929378]
[2024-11-19 18:25:26,137 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009929378] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:26,137 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:25:26,138 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:25:26,138 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063947469]
[2024-11-19 18:25:26,138 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:26,139 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-19 18:25:26,140 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:26,141 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-19 18:25:26,141 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-19 18:25:26,141 INFO  L87              Difference]: Start difference. First operand 3952 states and 4806 transitions. Second operand  has 4 states, 4 states have (on average 75.25) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 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 18:25:27,451 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:25:27,452 INFO  L93              Difference]: Finished difference Result 8231 states and 9951 transitions.
[2024-11-19 18:25:27,452 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 18:25:27,452 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 75.25) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 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 301
[2024-11-19 18:25:27,453 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:25:27,466 INFO  L225             Difference]: With dead ends: 8231
[2024-11-19 18:25:27,466 INFO  L226             Difference]: Without dead ends: 4281
[2024-11-19 18:25:27,470 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-19 18:25:27,471 INFO  L432           NwaCegarLoop]: 267 mSDtfsCounter, 127 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-19 18:25:27,472 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 322 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-19 18:25:27,476 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4281 states.
[2024-11-19 18:25:27,564 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4281 to 4281.
[2024-11-19 18:25:27,571 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4281 states, 4280 states have (on average 1.2011682242990653) internal successors, (5141), 4280 states have internal predecessors, (5141), 0 states have call successors, (0), 0 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 18:25:27,580 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4281 states to 4281 states and 5141 transitions.
[2024-11-19 18:25:27,580 INFO  L78                 Accepts]: Start accepts. Automaton has 4281 states and 5141 transitions. Word has length 301
[2024-11-19 18:25:27,581 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:25:27,581 INFO  L471      AbstractCegarLoop]: Abstraction has 4281 states and 5141 transitions.
[2024-11-19 18:25:27,581 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 75.25) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 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 18:25:27,582 INFO  L276                IsEmpty]: Start isEmpty. Operand 4281 states and 5141 transitions.
[2024-11-19 18:25:27,586 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 389
[2024-11-19 18:25:27,587 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:27,587 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:25:27,587 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-19 18:25:27,588 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:27,589 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:27,589 INFO  L85        PathProgramCache]: Analyzing trace with hash -1804160057, now seen corresponding path program 1 times
[2024-11-19 18:25:27,589 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:27,589 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162259866]
[2024-11-19 18:25:27,590 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:27,590 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:27,649 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:28,177 INFO  L134       CoverageAnalysis]: Checked inductivity of 193 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:25:28,178 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:28,179 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162259866]
[2024-11-19 18:25:28,179 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162259866] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:28,179 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:25:28,179 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-19 18:25:28,179 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135743970]
[2024-11-19 18:25:28,179 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:28,180 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-19 18:25:28,180 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:28,182 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-19 18:25:28,182 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-11-19 18:25:28,182 INFO  L87              Difference]: Start difference. First operand 4281 states and 5141 transitions. Second operand  has 7 states, 7 states have (on average 55.42857142857143) internal successors, (388), 6 states have internal predecessors, (388), 0 states have call successors, (0), 0 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 18:25:29,880 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:25:29,881 INFO  L93              Difference]: Finished difference Result 8090 states and 9792 transitions.
[2024-11-19 18:25:29,881 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-19 18:25:29,882 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 55.42857142857143) internal successors, (388), 6 states have internal predecessors, (388), 0 states have call successors, (0), 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 388
[2024-11-19 18:25:29,882 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:25:29,898 INFO  L225             Difference]: With dead ends: 8090
[2024-11-19 18:25:29,898 INFO  L226             Difference]: Without dead ends: 3952
[2024-11-19 18:25:29,903 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-11-19 18:25:29,904 INFO  L432           NwaCegarLoop]: 263 mSDtfsCounter, 315 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1795 mSolverCounterSat, 645 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 2440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 645 IncrementalHoareTripleChecker+Valid, 1795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2024-11-19 18:25:29,905 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 288 Invalid, 2440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [645 Valid, 1795 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2024-11-19 18:25:29,909 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3952 states.
[2024-11-19 18:25:29,954 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3952.
[2024-11-19 18:25:29,959 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3952 states, 3951 states have (on average 1.0802328524424196) internal successors, (4268), 3951 states have internal predecessors, (4268), 0 states have call successors, (0), 0 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 18:25:29,967 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3952 states to 3952 states and 4268 transitions.
[2024-11-19 18:25:29,967 INFO  L78                 Accepts]: Start accepts. Automaton has 3952 states and 4268 transitions. Word has length 388
[2024-11-19 18:25:29,968 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:25:29,968 INFO  L471      AbstractCegarLoop]: Abstraction has 3952 states and 4268 transitions.
[2024-11-19 18:25:29,968 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 55.42857142857143) internal successors, (388), 6 states have internal predecessors, (388), 0 states have call successors, (0), 0 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 18:25:29,969 INFO  L276                IsEmpty]: Start isEmpty. Operand 3952 states and 4268 transitions.
[2024-11-19 18:25:29,973 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 396
[2024-11-19 18:25:29,973 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:29,973 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:25:29,974 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-19 18:25:29,974 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:29,975 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:29,975 INFO  L85        PathProgramCache]: Analyzing trace with hash -691103377, now seen corresponding path program 1 times
[2024-11-19 18:25:29,975 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:29,975 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230907170]
[2024-11-19 18:25:29,976 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:29,976 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:30,072 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:30,266 INFO  L134       CoverageAnalysis]: Checked inductivity of 202 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked.
[2024-11-19 18:25:30,267 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:30,267 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230907170]
[2024-11-19 18:25:30,267 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230907170] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:30,267 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:25:30,267 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:25:30,267 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722917518]
[2024-11-19 18:25:30,267 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:30,268 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:25:30,268 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:30,268 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:25:30,269 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:25:30,269 INFO  L87              Difference]: Start difference. First operand 3952 states and 4268 transitions. Second operand  has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 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 18:25:31,152 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:25:31,152 INFO  L93              Difference]: Finished difference Result 9547 states and 10414 transitions.
[2024-11-19 18:25:31,153 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:25:31,153 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 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 395
[2024-11-19 18:25:31,154 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:25:31,169 INFO  L225             Difference]: With dead ends: 9547
[2024-11-19 18:25:31,169 INFO  L226             Difference]: Without dead ends: 5926
[2024-11-19 18:25:31,174 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 18:25:31,175 INFO  L432           NwaCegarLoop]: 35 mSDtfsCounter, 293 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-19 18:25:31,176 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 40 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-19 18:25:31,181 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5926 states.
[2024-11-19 18:25:31,280 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5926 to 5926.
[2024-11-19 18:25:31,288 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5926 states, 5925 states have (on average 1.0828691983122363) internal successors, (6416), 5925 states have internal predecessors, (6416), 0 states have call successors, (0), 0 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 18:25:31,305 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 6416 transitions.
[2024-11-19 18:25:31,308 INFO  L78                 Accepts]: Start accepts. Automaton has 5926 states and 6416 transitions. Word has length 395
[2024-11-19 18:25:31,309 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:25:31,309 INFO  L471      AbstractCegarLoop]: Abstraction has 5926 states and 6416 transitions.
[2024-11-19 18:25:31,310 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 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 18:25:31,310 INFO  L276                IsEmpty]: Start isEmpty. Operand 5926 states and 6416 transitions.
[2024-11-19 18:25:31,319 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 513
[2024-11-19 18:25:31,320 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:31,321 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:25:31,321 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-19 18:25:31,321 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:31,322 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:31,322 INFO  L85        PathProgramCache]: Analyzing trace with hash 1623184949, now seen corresponding path program 1 times
[2024-11-19 18:25:31,322 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:31,322 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889474369]
[2024-11-19 18:25:31,323 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:31,323 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:31,446 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:31,989 INFO  L134       CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked.
[2024-11-19 18:25:31,989 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:31,990 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889474369]
[2024-11-19 18:25:31,990 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889474369] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-19 18:25:31,991 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094669913]
[2024-11-19 18:25:31,991 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:31,991 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:25:31,991 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 18:25:31,994 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-19 18:25:31,996 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-19 18:25:32,202 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:32,207 INFO  L255         TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-19 18:25:32,224 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-19 18:25:32,899 INFO  L134       CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked.
[2024-11-19 18:25:32,899 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-19 18:25:32,900 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094669913] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:32,900 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-19 18:25:32,900 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4
[2024-11-19 18:25:32,900 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926464120]
[2024-11-19 18:25:32,901 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:32,901 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:25:32,902 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:32,902 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:25:32,902 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-19 18:25:32,902 INFO  L87              Difference]: Start difference. First operand 5926 states and 6416 transitions. Second operand  has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 0 states have call successors, (0), 0 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 18:25:33,601 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:25:33,601 INFO  L93              Difference]: Finished difference Result 7573 states and 8112 transitions.
[2024-11-19 18:25:33,602 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:25:33,602 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 0 states have call successors, (0), 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 512
[2024-11-19 18:25:33,603 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:25:33,623 INFO  L225             Difference]: With dead ends: 7573
[2024-11-19 18:25:33,623 INFO  L226             Difference]: Without dead ends: 7571
[2024-11-19 18:25:33,625 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-19 18:25:33,626 INFO  L432           NwaCegarLoop]: 78 mSDtfsCounter, 116 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-19 18:25:33,626 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 83 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-19 18:25:33,635 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7571 states.
[2024-11-19 18:25:33,718 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7571 to 6255.
[2024-11-19 18:25:33,725 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6255 states, 6254 states have (on average 1.0805884234090182) internal successors, (6758), 6254 states have internal predecessors, (6758), 0 states have call successors, (0), 0 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 18:25:33,734 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6255 states to 6255 states and 6758 transitions.
[2024-11-19 18:25:33,735 INFO  L78                 Accepts]: Start accepts. Automaton has 6255 states and 6758 transitions. Word has length 512
[2024-11-19 18:25:33,736 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:25:33,736 INFO  L471      AbstractCegarLoop]: Abstraction has 6255 states and 6758 transitions.
[2024-11-19 18:25:33,736 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 0 states have call successors, (0), 0 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 18:25:33,737 INFO  L276                IsEmpty]: Start isEmpty. Operand 6255 states and 6758 transitions.
[2024-11-19 18:25:33,764 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 907
[2024-11-19 18:25:33,764 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:33,765 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:25:33,774 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-19 18:25:33,965 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:25:33,966 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:33,966 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:33,967 INFO  L85        PathProgramCache]: Analyzing trace with hash -1576845819, now seen corresponding path program 1 times
[2024-11-19 18:25:33,967 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:33,967 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657922126]
[2024-11-19 18:25:33,967 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:33,967 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:34,087 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:35,084 INFO  L134       CoverageAnalysis]: Checked inductivity of 1481 backedges. 1078 proven. 0 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked.
[2024-11-19 18:25:35,086 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:35,087 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657922126]
[2024-11-19 18:25:35,087 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657922126] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:35,087 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:25:35,087 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:25:35,088 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909208693]
[2024-11-19 18:25:35,088 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:35,089 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-19 18:25:35,089 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:35,090 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-19 18:25:35,092 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 18:25:35,093 INFO  L87              Difference]: Start difference. First operand 6255 states and 6758 transitions. Second operand  has 4 states, 4 states have (on average 169.75) internal successors, (679), 3 states have internal predecessors, (679), 0 states have call successors, (0), 0 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 18:25:36,375 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:25:36,375 INFO  L93              Difference]: Finished difference Result 16456 states and 17847 transitions.
[2024-11-19 18:25:36,376 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 18:25:36,377 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 169.75) internal successors, (679), 3 states have internal predecessors, (679), 0 states have call successors, (0), 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 906
[2024-11-19 18:25:36,378 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:25:36,397 INFO  L225             Difference]: With dead ends: 16456
[2024-11-19 18:25:36,397 INFO  L226             Difference]: Without dead ends: 10532
[2024-11-19 18:25:36,405 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 18:25:36,408 INFO  L432           NwaCegarLoop]: 81 mSDtfsCounter, 187 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1696 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 1788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-19 18:25:36,408 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 93 Invalid, 1788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-19 18:25:36,418 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10532 states.
[2024-11-19 18:25:36,519 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10532 to 10532.
[2024-11-19 18:25:36,532 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10532 states, 10531 states have (on average 1.0784350963821099) internal successors, (11357), 10531 states have internal predecessors, (11357), 0 states have call successors, (0), 0 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 18:25:36,545 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10532 states to 10532 states and 11357 transitions.
[2024-11-19 18:25:36,545 INFO  L78                 Accepts]: Start accepts. Automaton has 10532 states and 11357 transitions. Word has length 906
[2024-11-19 18:25:36,546 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:25:36,546 INFO  L471      AbstractCegarLoop]: Abstraction has 10532 states and 11357 transitions.
[2024-11-19 18:25:36,547 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 169.75) internal successors, (679), 3 states have internal predecessors, (679), 0 states have call successors, (0), 0 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 18:25:36,547 INFO  L276                IsEmpty]: Start isEmpty. Operand 10532 states and 11357 transitions.
[2024-11-19 18:25:36,563 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 945
[2024-11-19 18:25:36,564 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:36,564 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:25:36,564 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-19 18:25:36,565 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:36,565 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:36,565 INFO  L85        PathProgramCache]: Analyzing trace with hash -1254190856, now seen corresponding path program 1 times
[2024-11-19 18:25:36,566 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:36,566 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789398450]
[2024-11-19 18:25:36,566 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:36,568 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:36,706 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:37,819 INFO  L134       CoverageAnalysis]: Checked inductivity of 1972 backedges. 1214 proven. 0 refuted. 0 times theorem prover too weak. 758 trivial. 0 not checked.
[2024-11-19 18:25:37,820 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:37,820 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789398450]
[2024-11-19 18:25:37,820 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789398450] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:37,820 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:25:37,821 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:25:37,821 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339268531]
[2024-11-19 18:25:37,821 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:37,822 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-19 18:25:37,822 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:37,823 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-19 18:25:37,823 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 18:25:37,823 INFO  L87              Difference]: Start difference. First operand 10532 states and 11357 transitions. Second operand  has 4 states, 4 states have (on average 148.25) internal successors, (593), 3 states have internal predecessors, (593), 0 states have call successors, (0), 0 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 18:25:39,102 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:25:39,102 INFO  L93              Difference]: Finished difference Result 20733 states and 22381 transitions.
[2024-11-19 18:25:39,102 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 18:25:39,102 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 148.25) internal successors, (593), 3 states have internal predecessors, (593), 0 states have call successors, (0), 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 944
[2024-11-19 18:25:39,103 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:25:39,121 INFO  L225             Difference]: With dead ends: 20733
[2024-11-19 18:25:39,122 INFO  L226             Difference]: Without dead ends: 10532
[2024-11-19 18:25:39,132 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 18:25:39,133 INFO  L432           NwaCegarLoop]: 111 mSDtfsCounter, 268 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1515 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 1519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-19 18:25:39,134 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 123 Invalid, 1519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1515 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-19 18:25:39,145 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10532 states.
[2024-11-19 18:25:39,236 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10532 to 10532.
[2024-11-19 18:25:39,248 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10532 states, 10531 states have (on average 1.07796030766309) internal successors, (11352), 10531 states have internal predecessors, (11352), 0 states have call successors, (0), 0 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 18:25:39,260 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10532 states to 10532 states and 11352 transitions.
[2024-11-19 18:25:39,261 INFO  L78                 Accepts]: Start accepts. Automaton has 10532 states and 11352 transitions. Word has length 944
[2024-11-19 18:25:39,262 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:25:39,262 INFO  L471      AbstractCegarLoop]: Abstraction has 10532 states and 11352 transitions.
[2024-11-19 18:25:39,262 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 148.25) internal successors, (593), 3 states have internal predecessors, (593), 0 states have call successors, (0), 0 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 18:25:39,262 INFO  L276                IsEmpty]: Start isEmpty. Operand 10532 states and 11352 transitions.
[2024-11-19 18:25:39,278 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1006
[2024-11-19 18:25:39,279 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:39,279 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 18:25:39,279 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-19 18:25:39,280 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:39,280 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:39,281 INFO  L85        PathProgramCache]: Analyzing trace with hash -1909614394, now seen corresponding path program 1 times
[2024-11-19 18:25:39,281 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:39,281 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017814162]
[2024-11-19 18:25:39,281 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:39,281 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:39,480 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:40,079 INFO  L134       CoverageAnalysis]: Checked inductivity of 2069 backedges. 1354 proven. 0 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked.
[2024-11-19 18:25:40,080 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:40,080 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017814162]
[2024-11-19 18:25:40,080 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017814162] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:40,080 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:25:40,080 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:25:40,081 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623426745]
[2024-11-19 18:25:40,081 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:40,082 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:25:40,082 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:40,082 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:25:40,083 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:25:40,083 INFO  L87              Difference]: Start difference. First operand 10532 states and 11352 transitions. Second operand  has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 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 18:25:40,924 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:25:40,925 INFO  L93              Difference]: Finished difference Result 23036 states and 24993 transitions.
[2024-11-19 18:25:40,925 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:25:40,925 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 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 1005
[2024-11-19 18:25:40,926 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:25:40,946 INFO  L225             Difference]: With dead ends: 23036
[2024-11-19 18:25:40,946 INFO  L226             Difference]: Without dead ends: 13164
[2024-11-19 18:25:40,954 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:25:40,955 INFO  L432           NwaCegarLoop]: 430 mSDtfsCounter, 222 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-19 18:25:40,955 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 435 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-19 18:25:40,963 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13164 states.
[2024-11-19 18:25:41,067 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 13164.
[2024-11-19 18:25:41,083 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13164 states, 13163 states have (on average 1.064195092304186) internal successors, (14008), 13163 states have internal predecessors, (14008), 0 states have call successors, (0), 0 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 18:25:41,099 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 14008 transitions.
[2024-11-19 18:25:41,100 INFO  L78                 Accepts]: Start accepts. Automaton has 13164 states and 14008 transitions. Word has length 1005
[2024-11-19 18:25:41,101 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:25:41,101 INFO  L471      AbstractCegarLoop]: Abstraction has 13164 states and 14008 transitions.
[2024-11-19 18:25:41,102 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 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 18:25:41,102 INFO  L276                IsEmpty]: Start isEmpty. Operand 13164 states and 14008 transitions.
[2024-11-19 18:25:41,119 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1007
[2024-11-19 18:25:41,120 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:41,120 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 18:25:41,121 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-19 18:25:41,121 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:41,121 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:41,121 INFO  L85        PathProgramCache]: Analyzing trace with hash 710764797, now seen corresponding path program 1 times
[2024-11-19 18:25:41,122 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:41,122 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729317056]
[2024-11-19 18:25:41,122 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:41,122 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:41,254 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:42,131 INFO  L134       CoverageAnalysis]: Checked inductivity of 2074 backedges. 1012 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked.
[2024-11-19 18:25:42,131 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:42,131 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729317056]
[2024-11-19 18:25:42,131 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729317056] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:42,132 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:25:42,132 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:25:42,132 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955792256]
[2024-11-19 18:25:42,132 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:42,133 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:25:42,133 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:42,134 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:25:42,134 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:25:42,134 INFO  L87              Difference]: Start difference. First operand 13164 states and 14008 transitions. Second operand  has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 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 18:25:42,854 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:25:42,854 INFO  L93              Difference]: Finished difference Result 25668 states and 27352 transitions.
[2024-11-19 18:25:42,854 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:25:42,855 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 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 1006
[2024-11-19 18:25:42,856 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:25:42,872 INFO  L225             Difference]: With dead ends: 25668
[2024-11-19 18:25:42,872 INFO  L226             Difference]: Without dead ends: 13164
[2024-11-19 18:25:42,883 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 18:25:42,884 INFO  L432           NwaCegarLoop]: 362 mSDtfsCounter, 148 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-19 18:25:42,884 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 367 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-19 18:25:42,893 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13164 states.
[2024-11-19 18:25:42,988 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 12506.
[2024-11-19 18:25:42,998 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12506 states, 12505 states have (on average 1.0499000399840064) internal successors, (13129), 12505 states have internal predecessors, (13129), 0 states have call successors, (0), 0 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 18:25:43,011 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12506 states to 12506 states and 13129 transitions.
[2024-11-19 18:25:43,012 INFO  L78                 Accepts]: Start accepts. Automaton has 12506 states and 13129 transitions. Word has length 1006
[2024-11-19 18:25:43,013 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:25:43,013 INFO  L471      AbstractCegarLoop]: Abstraction has 12506 states and 13129 transitions.
[2024-11-19 18:25:43,013 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 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 18:25:43,013 INFO  L276                IsEmpty]: Start isEmpty. Operand 12506 states and 13129 transitions.
[2024-11-19 18:25:43,035 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1021
[2024-11-19 18:25:43,035 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:43,036 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 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 18:25:43,036 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-19 18:25:43,036 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:43,036 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:43,037 INFO  L85        PathProgramCache]: Analyzing trace with hash -2055445420, now seen corresponding path program 1 times
[2024-11-19 18:25:43,037 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:43,037 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66781676]
[2024-11-19 18:25:43,037 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:43,037 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:43,173 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:43,816 INFO  L134       CoverageAnalysis]: Checked inductivity of 1945 backedges. 972 proven. 0 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked.
[2024-11-19 18:25:43,817 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:43,817 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66781676]
[2024-11-19 18:25:43,817 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66781676] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:43,817 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:25:43,817 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:25:43,817 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715330891]
[2024-11-19 18:25:43,817 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:43,818 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:25:43,818 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:43,819 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:25:43,819 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:25:43,820 INFO  L87              Difference]: Start difference. First operand 12506 states and 13129 transitions. Second operand  has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 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 18:25:44,584 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:25:44,584 INFO  L93              Difference]: Finished difference Result 29287 states and 30818 transitions.
[2024-11-19 18:25:44,585 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:25:44,585 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 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 1020
[2024-11-19 18:25:44,586 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:25:44,611 INFO  L225             Difference]: With dead ends: 29287
[2024-11-19 18:25:44,612 INFO  L226             Difference]: Without dead ends: 16125
[2024-11-19 18:25:44,625 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 18:25:44,625 INFO  L432           NwaCegarLoop]: 423 mSDtfsCounter, 145 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-19 18:25:44,626 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 428 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-19 18:25:44,639 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16125 states.
[2024-11-19 18:25:44,770 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16125 to 15796.
[2024-11-19 18:25:44,783 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15796 states, 15795 states have (on average 1.0384931940487496) internal successors, (16403), 15795 states have internal predecessors, (16403), 0 states have call successors, (0), 0 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 18:25:44,800 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15796 states to 15796 states and 16403 transitions.
[2024-11-19 18:25:44,801 INFO  L78                 Accepts]: Start accepts. Automaton has 15796 states and 16403 transitions. Word has length 1020
[2024-11-19 18:25:44,802 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:25:44,802 INFO  L471      AbstractCegarLoop]: Abstraction has 15796 states and 16403 transitions.
[2024-11-19 18:25:44,803 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 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 18:25:44,803 INFO  L276                IsEmpty]: Start isEmpty. Operand 15796 states and 16403 transitions.
[2024-11-19 18:25:44,820 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1059
[2024-11-19 18:25:44,820 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:44,821 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:25:44,821 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-19 18:25:44,821 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:44,822 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:44,822 INFO  L85        PathProgramCache]: Analyzing trace with hash 597019323, now seen corresponding path program 1 times
[2024-11-19 18:25:44,822 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:44,822 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220470058]
[2024-11-19 18:25:44,822 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:44,823 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:44,991 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:45,370 INFO  L134       CoverageAnalysis]: Checked inductivity of 2140 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 1817 trivial. 0 not checked.
[2024-11-19 18:25:45,370 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:45,370 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220470058]
[2024-11-19 18:25:45,370 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220470058] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:45,370 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:25:45,370 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:25:45,370 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614190118]
[2024-11-19 18:25:45,370 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:45,371 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:25:45,371 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:45,372 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:25:45,372 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:25:45,372 INFO  L87              Difference]: Start difference. First operand 15796 states and 16403 transitions. Second operand  has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 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 18:25:46,077 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:25:46,077 INFO  L93              Difference]: Finished difference Result 31261 states and 32472 transitions.
[2024-11-19 18:25:46,077 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:25:46,077 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 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 1058
[2024-11-19 18:25:46,078 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:25:46,104 INFO  L225             Difference]: With dead ends: 31261
[2024-11-19 18:25:46,104 INFO  L226             Difference]: Without dead ends: 15796
[2024-11-19 18:25:46,117 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 18:25:46,118 INFO  L432           NwaCegarLoop]: 421 mSDtfsCounter, 279 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-19 18:25:46,118 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 427 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-19 18:25:46,129 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15796 states.
[2024-11-19 18:25:46,329 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15796 to 15138.
[2024-11-19 18:25:46,344 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15138 states, 15137 states have (on average 1.0307854925018167) internal successors, (15603), 15137 states have internal predecessors, (15603), 0 states have call successors, (0), 0 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 18:25:46,361 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15138 states to 15138 states and 15603 transitions.
[2024-11-19 18:25:46,362 INFO  L78                 Accepts]: Start accepts. Automaton has 15138 states and 15603 transitions. Word has length 1058
[2024-11-19 18:25:46,363 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:25:46,363 INFO  L471      AbstractCegarLoop]: Abstraction has 15138 states and 15603 transitions.
[2024-11-19 18:25:46,363 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 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 18:25:46,363 INFO  L276                IsEmpty]: Start isEmpty. Operand 15138 states and 15603 transitions.
[2024-11-19 18:25:46,381 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1132
[2024-11-19 18:25:46,382 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:46,382 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:25:46,383 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-19 18:25:46,383 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:46,383 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:46,384 INFO  L85        PathProgramCache]: Analyzing trace with hash 971405822, now seen corresponding path program 1 times
[2024-11-19 18:25:46,384 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:46,384 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917383081]
[2024-11-19 18:25:46,384 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:46,384 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:46,520 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:47,451 INFO  L134       CoverageAnalysis]: Checked inductivity of 2140 backedges. 1024 proven. 0 refuted. 0 times theorem prover too weak. 1116 trivial. 0 not checked.
[2024-11-19 18:25:47,452 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:47,452 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917383081]
[2024-11-19 18:25:47,452 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917383081] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:47,452 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:25:47,452 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:25:47,455 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568927654]
[2024-11-19 18:25:47,455 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:47,456 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:25:47,456 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:47,457 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:25:47,457 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:25:47,457 INFO  L87              Difference]: Start difference. First operand 15138 states and 15603 transitions. Second operand  has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 0 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 18:25:48,156 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:25:48,156 INFO  L93              Difference]: Finished difference Result 29616 states and 30542 transitions.
[2024-11-19 18:25:48,157 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:25:48,157 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 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 1131
[2024-11-19 18:25:48,158 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:25:48,170 INFO  L225             Difference]: With dead ends: 29616
[2024-11-19 18:25:48,171 INFO  L226             Difference]: Without dead ends: 15138
[2024-11-19 18:25:48,180 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 18:25:48,181 INFO  L432           NwaCegarLoop]: 371 mSDtfsCounter, 45 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-19 18:25:48,181 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 377 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-19 18:25:48,191 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15138 states.
[2024-11-19 18:25:48,373 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15138 to 14809.
[2024-11-19 18:25:48,385 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14809 states, 14808 states have (on average 1.0274176121015668) internal successors, (15214), 14808 states have internal predecessors, (15214), 0 states have call successors, (0), 0 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 18:25:48,408 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14809 states to 14809 states and 15214 transitions.
[2024-11-19 18:25:48,409 INFO  L78                 Accepts]: Start accepts. Automaton has 14809 states and 15214 transitions. Word has length 1131
[2024-11-19 18:25:48,410 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:25:48,410 INFO  L471      AbstractCegarLoop]: Abstraction has 14809 states and 15214 transitions.
[2024-11-19 18:25:48,410 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 0 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 18:25:48,411 INFO  L276                IsEmpty]: Start isEmpty. Operand 14809 states and 15214 transitions.
[2024-11-19 18:25:48,444 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1251
[2024-11-19 18:25:48,444 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:48,445 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 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 18:25:48,445 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-19 18:25:48,445 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:48,446 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:48,446 INFO  L85        PathProgramCache]: Analyzing trace with hash -464631389, now seen corresponding path program 1 times
[2024-11-19 18:25:48,446 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:48,447 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857003522]
[2024-11-19 18:25:48,447 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:48,447 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:48,653 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:49,320 INFO  L134       CoverageAnalysis]: Checked inductivity of 3598 backedges. 2322 proven. 0 refuted. 0 times theorem prover too weak. 1276 trivial. 0 not checked.
[2024-11-19 18:25:49,320 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:49,320 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857003522]
[2024-11-19 18:25:49,321 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857003522] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:49,321 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:25:49,321 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:25:49,321 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031601373]
[2024-11-19 18:25:49,321 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:49,322 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:25:49,322 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:49,323 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:25:49,323 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:25:49,323 INFO  L87              Difference]: Start difference. First operand 14809 states and 15214 transitions. Second operand  has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 0 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 18:25:49,998 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:25:49,998 INFO  L93              Difference]: Finished difference Result 30274 states and 31127 transitions.
[2024-11-19 18:25:49,998 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:25:49,999 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 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 1250
[2024-11-19 18:25:49,999 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:25:50,018 INFO  L225             Difference]: With dead ends: 30274
[2024-11-19 18:25:50,018 INFO  L226             Difference]: Without dead ends: 16125
[2024-11-19 18:25:50,030 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 18:25:50,031 INFO  L432           NwaCegarLoop]: 419 mSDtfsCounter, 192 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-19 18:25:50,031 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 425 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-19 18:25:50,044 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16125 states.
[2024-11-19 18:25:50,155 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16125 to 16125.
[2024-11-19 18:25:50,168 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16125 states, 16124 states have (on average 1.0236293723641776) internal successors, (16505), 16124 states have internal predecessors, (16505), 0 states have call successors, (0), 0 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 18:25:50,182 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16125 states to 16125 states and 16505 transitions.
[2024-11-19 18:25:50,183 INFO  L78                 Accepts]: Start accepts. Automaton has 16125 states and 16505 transitions. Word has length 1250
[2024-11-19 18:25:50,183 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:25:50,184 INFO  L471      AbstractCegarLoop]: Abstraction has 16125 states and 16505 transitions.
[2024-11-19 18:25:50,184 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 0 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 18:25:50,184 INFO  L276                IsEmpty]: Start isEmpty. Operand 16125 states and 16505 transitions.
[2024-11-19 18:25:50,198 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1338
[2024-11-19 18:25:50,198 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:50,198 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:25:50,198 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-19 18:25:50,199 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:50,199 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:50,199 INFO  L85        PathProgramCache]: Analyzing trace with hash 123759935, now seen corresponding path program 1 times
[2024-11-19 18:25:50,199 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:50,199 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370032857]
[2024-11-19 18:25:50,199 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:50,199 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:50,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:50,981 INFO  L134       CoverageAnalysis]: Checked inductivity of 4032 backedges. 1447 proven. 0 refuted. 0 times theorem prover too weak. 2585 trivial. 0 not checked.
[2024-11-19 18:25:50,982 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:50,982 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370032857]
[2024-11-19 18:25:50,982 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370032857] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:50,982 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:25:50,982 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:25:50,982 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145888576]
[2024-11-19 18:25:50,983 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:50,984 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:25:50,984 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:50,985 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:25:50,985 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:25:50,985 INFO  L87              Difference]: Start difference. First operand 16125 states and 16505 transitions. Second operand  has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 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 18:25:51,702 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:25:51,702 INFO  L93              Difference]: Finished difference Result 34551 states and 35440 transitions.
[2024-11-19 18:25:51,702 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:25:51,703 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 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 1337
[2024-11-19 18:25:51,703 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:25:51,716 INFO  L225             Difference]: With dead ends: 34551
[2024-11-19 18:25:51,716 INFO  L226             Difference]: Without dead ends: 16783
[2024-11-19 18:25:51,726 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 18:25:51,727 INFO  L432           NwaCegarLoop]: 407 mSDtfsCounter, 147 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-19 18:25:51,727 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 413 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-19 18:25:51,737 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16783 states.
[2024-11-19 18:25:51,827 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16783 to 16783.
[2024-11-19 18:25:51,835 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16783 states, 16782 states have (on average 1.0227028959599571) internal successors, (17163), 16782 states have internal predecessors, (17163), 0 states have call successors, (0), 0 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 18:25:51,847 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16783 states to 16783 states and 17163 transitions.
[2024-11-19 18:25:51,848 INFO  L78                 Accepts]: Start accepts. Automaton has 16783 states and 17163 transitions. Word has length 1337
[2024-11-19 18:25:51,849 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:25:51,849 INFO  L471      AbstractCegarLoop]: Abstraction has 16783 states and 17163 transitions.
[2024-11-19 18:25:51,849 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 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 18:25:51,849 INFO  L276                IsEmpty]: Start isEmpty. Operand 16783 states and 17163 transitions.
[2024-11-19 18:25:51,865 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1452
[2024-11-19 18:25:51,865 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:51,866 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-19 18:25:51,866 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-19 18:25:51,866 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:51,866 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:51,867 INFO  L85        PathProgramCache]: Analyzing trace with hash 255529046, now seen corresponding path program 1 times
[2024-11-19 18:25:51,867 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:51,867 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314940315]
[2024-11-19 18:25:51,867 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:51,867 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:52,112 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:52,956 INFO  L134       CoverageAnalysis]: Checked inductivity of 3950 backedges. 431 proven. 0 refuted. 0 times theorem prover too weak. 3519 trivial. 0 not checked.
[2024-11-19 18:25:52,956 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:52,956 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314940315]
[2024-11-19 18:25:52,957 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314940315] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:52,957 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:25:52,957 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-19 18:25:52,957 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864920316]
[2024-11-19 18:25:52,957 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:52,958 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-19 18:25:52,958 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:52,959 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-19 18:25:52,959 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2024-11-19 18:25:52,959 INFO  L87              Difference]: Start difference. First operand 16783 states and 17163 transitions. Second operand  has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 0 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 18:25:53,589 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:25:53,590 INFO  L93              Difference]: Finished difference Result 32672 states and 33424 transitions.
[2024-11-19 18:25:53,590 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-19 18:25:53,590 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 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 1451
[2024-11-19 18:25:53,591 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:25:53,604 INFO  L225             Difference]: With dead ends: 32672
[2024-11-19 18:25:53,604 INFO  L226             Difference]: Without dead ends: 16454
[2024-11-19 18:25:53,612 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2024-11-19 18:25:53,613 INFO  L432           NwaCegarLoop]: 429 mSDtfsCounter, 22 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-19 18:25:53,613 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 452 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-19 18:25:53,621 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16454 states.
[2024-11-19 18:25:53,697 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16454 to 14480.
[2024-11-19 18:25:53,704 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14480 states, 14479 states have (on average 1.0221700393673596) internal successors, (14800), 14479 states have internal predecessors, (14800), 0 states have call successors, (0), 0 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 18:25:53,715 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14480 states to 14480 states and 14800 transitions.
[2024-11-19 18:25:53,716 INFO  L78                 Accepts]: Start accepts. Automaton has 14480 states and 14800 transitions. Word has length 1451
[2024-11-19 18:25:53,717 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:25:53,717 INFO  L471      AbstractCegarLoop]: Abstraction has 14480 states and 14800 transitions.
[2024-11-19 18:25:53,717 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 0 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 18:25:53,717 INFO  L276                IsEmpty]: Start isEmpty. Operand 14480 states and 14800 transitions.
[2024-11-19 18:25:53,743 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1829
[2024-11-19 18:25:53,743 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:53,744 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:25:53,744 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-19 18:25:53,744 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:53,744 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:53,745 INFO  L85        PathProgramCache]: Analyzing trace with hash 1760245359, now seen corresponding path program 1 times
[2024-11-19 18:25:53,745 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:53,745 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228171044]
[2024-11-19 18:25:53,745 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:53,745 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:53,975 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:56,412 INFO  L134       CoverageAnalysis]: Checked inductivity of 5655 backedges. 3883 proven. 152 refuted. 0 times theorem prover too weak. 1620 trivial. 0 not checked.
[2024-11-19 18:25:56,413 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:56,413 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228171044]
[2024-11-19 18:25:56,413 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228171044] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-19 18:25:56,413 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610367590]
[2024-11-19 18:25:56,413 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:56,413 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:25:56,414 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 18:25:56,416 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-19 18:25:56,417 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-19 18:25:56,853 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:56,859 INFO  L255         TraceCheckSpWp]: Trace formula consists of 2069 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-19 18:25:56,874 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-19 18:25:57,163 INFO  L134       CoverageAnalysis]: Checked inductivity of 5655 backedges. 3611 proven. 0 refuted. 0 times theorem prover too weak. 2044 trivial. 0 not checked.
[2024-11-19 18:25:57,163 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-19 18:25:57,164 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610367590] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:57,164 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-19 18:25:57,164 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2024-11-19 18:25:57,164 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916556182]
[2024-11-19 18:25:57,165 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:57,166 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:25:57,166 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:57,167 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:25:57,167 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-19 18:25:57,167 INFO  L87              Difference]: Start difference. First operand 14480 states and 14800 transitions. Second operand  has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 0 states have call successors, (0), 0 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 18:25:57,819 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:25:57,819 INFO  L93              Difference]: Finished difference Result 28300 states and 28936 transitions.
[2024-11-19 18:25:57,819 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:25:57,819 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 0 states have call successors, (0), 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 1828
[2024-11-19 18:25:57,820 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:25:57,832 INFO  L225             Difference]: With dead ends: 28300
[2024-11-19 18:25:57,832 INFO  L226             Difference]: Without dead ends: 14480
[2024-11-19 18:25:57,840 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1835 GetRequests, 1830 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-19 18:25:57,840 INFO  L432           NwaCegarLoop]: 401 mSDtfsCounter, 123 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-19 18:25:57,840 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 407 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-19 18:25:57,847 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14480 states.
[2024-11-19 18:25:57,923 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14480 to 13822.
[2024-11-19 18:25:57,930 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13822 states, 13821 states have (on average 1.020259026119673) internal successors, (14101), 13821 states have internal predecessors, (14101), 0 states have call successors, (0), 0 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 18:25:57,941 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13822 states to 13822 states and 14101 transitions.
[2024-11-19 18:25:57,942 INFO  L78                 Accepts]: Start accepts. Automaton has 13822 states and 14101 transitions. Word has length 1828
[2024-11-19 18:25:57,943 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:25:57,943 INFO  L471      AbstractCegarLoop]: Abstraction has 13822 states and 14101 transitions.
[2024-11-19 18:25:57,943 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 0 states have call successors, (0), 0 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 18:25:57,943 INFO  L276                IsEmpty]: Start isEmpty. Operand 13822 states and 14101 transitions.
[2024-11-19 18:25:57,973 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1877
[2024-11-19 18:25:57,973 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:25:57,974 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-19 18:25:57,986 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-19 18:25:58,175 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:25:58,176 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:25:58,176 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:25:58,176 INFO  L85        PathProgramCache]: Analyzing trace with hash 460303014, now seen corresponding path program 1 times
[2024-11-19 18:25:58,176 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:25:58,176 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000234777]
[2024-11-19 18:25:58,177 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:25:58,177 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:25:58,343 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:25:59,602 INFO  L134       CoverageAnalysis]: Checked inductivity of 6875 backedges. 4154 proven. 0 refuted. 0 times theorem prover too weak. 2721 trivial. 0 not checked.
[2024-11-19 18:25:59,602 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:25:59,603 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000234777]
[2024-11-19 18:25:59,603 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000234777] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:25:59,603 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:25:59,603 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:25:59,603 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645459407]
[2024-11-19 18:25:59,603 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:25:59,604 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:25:59,605 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:25:59,605 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:25:59,605 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:25:59,606 INFO  L87              Difference]: Start difference. First operand 13822 states and 14101 transitions. Second operand  has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 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 18:26:00,252 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:26:00,253 INFO  L93              Difference]: Finished difference Result 27313 states and 27875 transitions.
[2024-11-19 18:26:00,253 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:26:00,253 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 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 1876
[2024-11-19 18:26:00,254 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:26:00,266 INFO  L225             Difference]: With dead ends: 27313
[2024-11-19 18:26:00,266 INFO  L226             Difference]: Without dead ends: 14151
[2024-11-19 18:26:00,273 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 18:26:00,274 INFO  L432           NwaCegarLoop]: 422 mSDtfsCounter, 224 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-19 18:26:00,274 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 428 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-19 18:26:00,281 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14151 states.
[2024-11-19 18:26:00,354 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14151 to 14151.
[2024-11-19 18:26:00,361 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14151 states, 14150 states have (on average 1.0199293286219082) internal successors, (14432), 14150 states have internal predecessors, (14432), 0 states have call successors, (0), 0 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 18:26:00,373 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14151 states to 14151 states and 14432 transitions.
[2024-11-19 18:26:00,374 INFO  L78                 Accepts]: Start accepts. Automaton has 14151 states and 14432 transitions. Word has length 1876
[2024-11-19 18:26:00,374 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:26:00,374 INFO  L471      AbstractCegarLoop]: Abstraction has 14151 states and 14432 transitions.
[2024-11-19 18:26:00,375 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 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 18:26:00,375 INFO  L276                IsEmpty]: Start isEmpty. Operand 14151 states and 14432 transitions.
[2024-11-19 18:26:00,400 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1900
[2024-11-19 18:26:00,400 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:26:00,401 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:26:00,401 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-11-19 18:26:00,401 INFO  L396      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:26:00,401 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:26:00,402 INFO  L85        PathProgramCache]: Analyzing trace with hash 1068307765, now seen corresponding path program 1 times
[2024-11-19 18:26:00,402 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:26:00,402 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836024606]
[2024-11-19 18:26:00,402 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:26:00,402 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:26:00,637 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:26:03,448 INFO  L134       CoverageAnalysis]: Checked inductivity of 6692 backedges. 3328 proven. 412 refuted. 0 times theorem prover too weak. 2952 trivial. 0 not checked.
[2024-11-19 18:26:03,449 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:26:03,449 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836024606]
[2024-11-19 18:26:03,449 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836024606] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-19 18:26:03,449 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505379254]
[2024-11-19 18:26:03,450 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:26:03,450 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:26:03,450 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 18:26:03,453 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-19 18:26:03,455 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-19 18:26:03,964 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:26:03,971 INFO  L255         TraceCheckSpWp]: Trace formula consists of 2184 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-19 18:26:03,992 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-19 18:26:04,591 INFO  L134       CoverageAnalysis]: Checked inductivity of 6692 backedges. 3974 proven. 0 refuted. 0 times theorem prover too weak. 2718 trivial. 0 not checked.
[2024-11-19 18:26:04,592 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-19 18:26:04,592 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [505379254] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:26:04,592 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-19 18:26:04,593 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8
[2024-11-19 18:26:04,593 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97327694]
[2024-11-19 18:26:04,593 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:26:04,594 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:26:04,594 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:26:04,595 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:26:04,595 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2024-11-19 18:26:04,595 INFO  L87              Difference]: Start difference. First operand 14151 states and 14432 transitions. Second operand  has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 0 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 18:26:05,276 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:26:05,276 INFO  L93              Difference]: Finished difference Result 27642 states and 28200 transitions.
[2024-11-19 18:26:05,277 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:26:05,277 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 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 1899
[2024-11-19 18:26:05,278 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:26:05,288 INFO  L225             Difference]: With dead ends: 27642
[2024-11-19 18:26:05,288 INFO  L226             Difference]: Without dead ends: 14151
[2024-11-19 18:26:05,296 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1906 GetRequests, 1900 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2024-11-19 18:26:05,296 INFO  L432           NwaCegarLoop]: 415 mSDtfsCounter, 120 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-19 18:26:05,297 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 421 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-19 18:26:05,304 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14151 states.
[2024-11-19 18:26:05,377 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14151 to 14151.
[2024-11-19 18:26:05,385 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14151 states, 14150 states have (on average 1.0197173144876326) internal successors, (14429), 14150 states have internal predecessors, (14429), 0 states have call successors, (0), 0 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 18:26:05,397 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14151 states to 14151 states and 14429 transitions.
[2024-11-19 18:26:05,397 INFO  L78                 Accepts]: Start accepts. Automaton has 14151 states and 14429 transitions. Word has length 1899
[2024-11-19 18:26:05,398 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:26:05,398 INFO  L471      AbstractCegarLoop]: Abstraction has 14151 states and 14429 transitions.
[2024-11-19 18:26:05,398 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 0 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 18:26:05,398 INFO  L276                IsEmpty]: Start isEmpty. Operand 14151 states and 14429 transitions.
[2024-11-19 18:26:05,420 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1924
[2024-11-19 18:26:05,420 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:26:05,421 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:26:05,430 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-19 18:26:05,621 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:26:05,622 INFO  L396      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:26:05,622 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:26:05,622 INFO  L85        PathProgramCache]: Analyzing trace with hash -1426996224, now seen corresponding path program 1 times
[2024-11-19 18:26:05,623 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:26:05,623 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384233940]
[2024-11-19 18:26:05,623 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:26:05,623 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:26:05,821 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:26:06,335 INFO  L134       CoverageAnalysis]: Checked inductivity of 7291 backedges. 2012 proven. 0 refuted. 0 times theorem prover too weak. 5279 trivial. 0 not checked.
[2024-11-19 18:26:06,336 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:26:06,336 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384233940]
[2024-11-19 18:26:06,336 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384233940] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:26:06,336 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:26:06,336 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:26:06,336 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838477726]
[2024-11-19 18:26:06,336 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:26:06,337 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:26:06,337 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:26:06,338 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:26:06,338 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:26:06,338 INFO  L87              Difference]: Start difference. First operand 14151 states and 14429 transitions. Second operand  has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 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 18:26:07,078 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:26:07,078 INFO  L93              Difference]: Finished difference Result 29945 states and 30545 transitions.
[2024-11-19 18:26:07,078 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:26:07,079 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 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 1923
[2024-11-19 18:26:07,080 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:26:07,093 INFO  L225             Difference]: With dead ends: 29945
[2024-11-19 18:26:07,093 INFO  L226             Difference]: Without dead ends: 16454
[2024-11-19 18:26:07,100 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 18:26:07,101 INFO  L432           NwaCegarLoop]: 412 mSDtfsCounter, 138 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-19 18:26:07,101 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 418 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-19 18:26:07,115 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16454 states.
[2024-11-19 18:26:07,204 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16454 to 15796.
[2024-11-19 18:26:07,215 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15796 states, 15795 states have (on average 1.0187401076289966) internal successors, (16091), 15795 states have internal predecessors, (16091), 0 states have call successors, (0), 0 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 18:26:07,229 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15796 states to 15796 states and 16091 transitions.
[2024-11-19 18:26:07,230 INFO  L78                 Accepts]: Start accepts. Automaton has 15796 states and 16091 transitions. Word has length 1923
[2024-11-19 18:26:07,231 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:26:07,231 INFO  L471      AbstractCegarLoop]: Abstraction has 15796 states and 16091 transitions.
[2024-11-19 18:26:07,231 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 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 18:26:07,231 INFO  L276                IsEmpty]: Start isEmpty. Operand 15796 states and 16091 transitions.
[2024-11-19 18:26:07,255 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1971
[2024-11-19 18:26:07,255 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:26:07,255 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:26:07,256 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-11-19 18:26:07,256 INFO  L396      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:26:07,256 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:26:07,257 INFO  L85        PathProgramCache]: Analyzing trace with hash -1247546345, now seen corresponding path program 1 times
[2024-11-19 18:26:07,257 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:26:07,257 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091296122]
[2024-11-19 18:26:07,257 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:26:07,257 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:26:07,439 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:26:09,646 INFO  L134       CoverageAnalysis]: Checked inductivity of 7563 backedges. 4940 proven. 228 refuted. 0 times theorem prover too weak. 2395 trivial. 0 not checked.
[2024-11-19 18:26:09,646 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:26:09,646 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091296122]
[2024-11-19 18:26:09,647 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091296122] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-19 18:26:09,647 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333291013]
[2024-11-19 18:26:09,647 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:26:09,647 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:26:09,647 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 18:26:09,650 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-19 18:26:09,651 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-19 18:26:10,128 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:26:10,135 INFO  L255         TraceCheckSpWp]: Trace formula consists of 2248 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-19 18:26:10,152 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-19 18:26:10,879 INFO  L134       CoverageAnalysis]: Checked inductivity of 7563 backedges. 4978 proven. 0 refuted. 0 times theorem prover too weak. 2585 trivial. 0 not checked.
[2024-11-19 18:26:10,879 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-19 18:26:10,880 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333291013] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:26:10,880 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-19 18:26:10,880 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2024-11-19 18:26:10,881 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22187488]
[2024-11-19 18:26:10,881 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:26:10,882 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:26:10,882 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:26:10,883 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:26:10,883 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-11-19 18:26:10,884 INFO  L87              Difference]: Start difference. First operand 15796 states and 16091 transitions. Second operand  has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 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 18:26:11,598 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:26:11,599 INFO  L93              Difference]: Finished difference Result 30932 states and 31518 transitions.
[2024-11-19 18:26:11,599 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:26:11,599 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 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 1970
[2024-11-19 18:26:11,600 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:26:11,616 INFO  L225             Difference]: With dead ends: 30932
[2024-11-19 18:26:11,616 INFO  L226             Difference]: Without dead ends: 15796
[2024-11-19 18:26:11,625 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1977 GetRequests, 1972 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-11-19 18:26:11,625 INFO  L432           NwaCegarLoop]: 418 mSDtfsCounter, 62 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-19 18:26:11,625 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 424 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-19 18:26:11,632 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15796 states.
[2024-11-19 18:26:11,709 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15796 to 15796.
[2024-11-19 18:26:11,719 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15796 states, 15795 states have (on average 1.0184868629313073) internal successors, (16087), 15795 states have internal predecessors, (16087), 0 states have call successors, (0), 0 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 18:26:11,732 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15796 states to 15796 states and 16087 transitions.
[2024-11-19 18:26:11,733 INFO  L78                 Accepts]: Start accepts. Automaton has 15796 states and 16087 transitions. Word has length 1970
[2024-11-19 18:26:11,733 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:26:11,734 INFO  L471      AbstractCegarLoop]: Abstraction has 15796 states and 16087 transitions.
[2024-11-19 18:26:11,734 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 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 18:26:11,734 INFO  L276                IsEmpty]: Start isEmpty. Operand 15796 states and 16087 transitions.
[2024-11-19 18:26:11,760 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2203
[2024-11-19 18:26:11,760 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:26:11,761 INFO  L215           NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-19 18:26:11,769 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-19 18:26:11,961 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:26:11,962 INFO  L396      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:26:11,962 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:26:11,963 INFO  L85        PathProgramCache]: Analyzing trace with hash 652656381, now seen corresponding path program 1 times
[2024-11-19 18:26:11,963 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:26:11,963 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929335601]
[2024-11-19 18:26:11,963 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:26:11,963 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:26:12,140 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:26:13,845 INFO  L134       CoverageAnalysis]: Checked inductivity of 9658 backedges. 4363 proven. 0 refuted. 0 times theorem prover too weak. 5295 trivial. 0 not checked.
[2024-11-19 18:26:13,846 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:26:13,846 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929335601]
[2024-11-19 18:26:13,846 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929335601] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:26:13,846 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:26:13,847 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:26:13,847 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502310249]
[2024-11-19 18:26:13,847 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:26:13,848 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:26:13,849 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:26:13,849 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:26:13,850 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:26:13,850 INFO  L87              Difference]: Start difference. First operand 15796 states and 16087 transitions. Second operand  has 3 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 0 states have call successors, (0), 0 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 18:26:14,576 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:26:14,577 INFO  L93              Difference]: Finished difference Result 33564 states and 34186 transitions.
[2024-11-19 18:26:14,577 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:26:14,577 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 0 states have call successors, (0), 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 2202
[2024-11-19 18:26:14,578 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:26:14,592 INFO  L225             Difference]: With dead ends: 33564
[2024-11-19 18:26:14,592 INFO  L226             Difference]: Without dead ends: 18428
[2024-11-19 18:26:14,601 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 18:26:14,601 INFO  L432           NwaCegarLoop]: 44 mSDtfsCounter, 207 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-19 18:26:14,601 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 49 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-19 18:26:14,611 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 18428 states.
[2024-11-19 18:26:14,692 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 18428 to 16454.
[2024-11-19 18:26:14,700 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16454 states, 16453 states have (on average 1.0181729775724793) internal successors, (16752), 16453 states have internal predecessors, (16752), 0 states have call successors, (0), 0 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 18:26:14,713 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16454 states to 16454 states and 16752 transitions.
[2024-11-19 18:26:14,714 INFO  L78                 Accepts]: Start accepts. Automaton has 16454 states and 16752 transitions. Word has length 2202
[2024-11-19 18:26:14,714 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:26:14,714 INFO  L471      AbstractCegarLoop]: Abstraction has 16454 states and 16752 transitions.
[2024-11-19 18:26:14,714 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 0 states have call successors, (0), 0 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 18:26:14,714 INFO  L276                IsEmpty]: Start isEmpty. Operand 16454 states and 16752 transitions.
[2024-11-19 18:26:14,740 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2244
[2024-11-19 18:26:14,741 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:26:14,741 INFO  L215           NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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]
[2024-11-19 18:26:14,741 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2024-11-19 18:26:14,741 INFO  L396      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:26:14,742 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:26:14,742 INFO  L85        PathProgramCache]: Analyzing trace with hash 2040868240, now seen corresponding path program 1 times
[2024-11-19 18:26:14,742 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:26:14,742 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093912422]
[2024-11-19 18:26:14,742 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:26:14,743 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:26:14,936 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:26:17,092 INFO  L134       CoverageAnalysis]: Checked inductivity of 10494 backedges. 7294 proven. 140 refuted. 0 times theorem prover too weak. 3060 trivial. 0 not checked.
[2024-11-19 18:26:17,092 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:26:17,092 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093912422]
[2024-11-19 18:26:17,092 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093912422] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-19 18:26:17,093 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333863731]
[2024-11-19 18:26:17,093 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:26:17,093 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:26:17,093 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 18:26:17,095 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-19 18:26:17,097 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-19 18:26:17,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:26:17,725 INFO  L255         TraceCheckSpWp]: Trace formula consists of 2583 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-19 18:26:17,752 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-19 18:26:17,933 INFO  L134       CoverageAnalysis]: Checked inductivity of 10494 backedges. 5832 proven. 0 refuted. 0 times theorem prover too weak. 4662 trivial. 0 not checked.
[2024-11-19 18:26:17,934 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-19 18:26:17,934 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333863731] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:26:17,934 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-19 18:26:17,935 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2024-11-19 18:26:17,935 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570220659]
[2024-11-19 18:26:17,935 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:26:17,936 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:26:17,936 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:26:17,937 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:26:17,937 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-19 18:26:17,937 INFO  L87              Difference]: Start difference. First operand 16454 states and 16752 transitions. Second operand  has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 0 states have call successors, (0), 0 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 18:26:18,667 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:26:18,667 INFO  L93              Difference]: Finished difference Result 34220 states and 34845 transitions.
[2024-11-19 18:26:18,667 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:26:18,667 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 0 states have call successors, (0), 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 2243
[2024-11-19 18:26:18,668 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:26:18,668 INFO  L225             Difference]: With dead ends: 34220
[2024-11-19 18:26:18,668 INFO  L226             Difference]: Without dead ends: 0
[2024-11-19 18:26:18,680 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2248 GetRequests, 2243 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-19 18:26:18,680 INFO  L432           NwaCegarLoop]: 414 mSDtfsCounter, 221 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-19 18:26:18,681 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 419 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-19 18:26:18,681 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-19 18:26:18,681 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-19 18:26:18,681 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:26:18,681 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-19 18:26:18,682 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2243
[2024-11-19 18:26:18,682 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:26:18,682 INFO  L471      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-19 18:26:18,683 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 0 states have call successors, (0), 0 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 18:26:18,683 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-19 18:26:18,683 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-19 18:26:18,685 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-19 18:26:18,696 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-19 18:26:18,886 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24
[2024-11-19 18:26:18,889 INFO  L407         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:26:18,891 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-19 18:26:20,411 INFO  L170   ceAbstractionStarter]: Computing trace abstraction results
[2024-11-19 18:26:20,432 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:26:20 BoogieIcfgContainer
[2024-11-19 18:26:20,432 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-19 18:26:20,432 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-19 18:26:20,433 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-11-19 18:26:20,433 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-11-19 18:26:20,433 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:25:18" (3/4) ...
[2024-11-19 18:26:20,435 INFO  L142         WitnessPrinter]: Generating witness for correct program
[2024-11-19 18:26:20,468 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges
[2024-11-19 18:26:20,471 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-19 18:26:20,472 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-19 18:26:20,474 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-19 18:26:20,689 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-19 18:26:20,689 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-19 18:26:20,690 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-19 18:26:20,690 INFO  L158              Benchmark]: Toolchain (without parser) took 66141.90ms. Allocated memory was 153.1MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 76.7MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 959.1MB. Max. memory is 16.1GB.
[2024-11-19 18:26:20,691 INFO  L158              Benchmark]: CDTParser took 0.17ms. Allocated memory is still 153.1MB. Free memory was 125.6MB in the beginning and 125.4MB in the end (delta: 167.2kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-19 18:26:20,691 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 879.85ms. Allocated memory is still 153.1MB. Free memory was 76.5MB in the beginning and 69.7MB in the end (delta: 6.8MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB.
[2024-11-19 18:26:20,691 INFO  L158              Benchmark]: Boogie Procedure Inliner took 219.28ms. Allocated memory is still 153.1MB. Free memory was 68.9MB in the beginning and 108.3MB in the end (delta: -39.4MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB.
[2024-11-19 18:26:20,691 INFO  L158              Benchmark]: Boogie Preprocessor took 214.79ms. Allocated memory is still 153.1MB. Free memory was 108.3MB in the beginning and 74.3MB in the end (delta: 34.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB.
[2024-11-19 18:26:20,692 INFO  L158              Benchmark]: RCFGBuilder took 2359.04ms. Allocated memory was 153.1MB in the beginning and 274.7MB in the end (delta: 121.6MB). Free memory was 74.3MB in the beginning and 116.2MB in the end (delta: -41.9MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB.
[2024-11-19 18:26:20,692 INFO  L158              Benchmark]: TraceAbstraction took 62204.06ms. Allocated memory was 274.7MB in the beginning and 2.6GB in the end (delta: 2.3GB). Free memory was 115.2MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 848.1MB. Max. memory is 16.1GB.
[2024-11-19 18:26:20,692 INFO  L158              Benchmark]: Witness Printer took 257.17ms. Allocated memory is still 2.6GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB.
[2024-11-19 18:26:20,694 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.17ms. Allocated memory is still 153.1MB. Free memory was 125.6MB in the beginning and 125.4MB in the end (delta: 167.2kB). There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 879.85ms. Allocated memory is still 153.1MB. Free memory was 76.5MB in the beginning and 69.7MB in the end (delta: 6.8MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 219.28ms. Allocated memory is still 153.1MB. Free memory was 68.9MB in the beginning and 108.3MB in the end (delta: -39.4MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 214.79ms. Allocated memory is still 153.1MB. Free memory was 108.3MB in the beginning and 74.3MB in the end (delta: 34.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB.
 * RCFGBuilder took 2359.04ms. Allocated memory was 153.1MB in the beginning and 274.7MB in the end (delta: 121.6MB). Free memory was 74.3MB in the beginning and 116.2MB in the end (delta: -41.9MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB.
 * TraceAbstraction took 62204.06ms. Allocated memory was 274.7MB in the beginning and 2.6GB in the end (delta: 2.3GB). Free memory was 115.2MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 848.1MB. Max. memory is 16.1GB.
 * Witness Printer took 257.17ms. Allocated memory is still 2.6GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 185]: a call to reach_error is unreachable
    For all program executions holds that a call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 396 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 60.6s, OverallIterations: 25, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 24.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4846 SdHoareTripleChecker+Valid, 21.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4846 mSDsluCounter, 7549 SdHoareTripleChecker+Invalid, 17.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 237 mSDsCounter, 2954 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23029 IncrementalHoareTripleChecker+Invalid, 25983 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2954 mSolverCounterUnsat, 7312 mSDtfsCounter, 23029 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8549 GetRequests, 8494 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16783occurred in iteration=17, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 25 MinimizatonAttempts, 8554 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 25.8s InterpolantComputationTime, 35665 NumberOfCodeBlocks, 35665 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 35635 ConstructedInterpolants, 0 QuantifiedInterpolants, 72322 SizeOfPredicates, 0 NumberOfNonLiveVariables, 9692 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 30 InterpolantComputations, 25 PerfectInterpolantSequences, 110445/111413 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 1783]: Loop Invariant
    Derived loop invariant: (((((((((((((((((((((((((((((a16 == 9) && (7 == a12)) || (((a16 == 10) && (a12 == 8)) && (a15 == 3))) || ((((a15 <= 3) && (a12 == 8)) && (((long long) a18 + 156) <= 0)) && (a16 <= 11))) || (((a15 <= 3) && (a18 <= 132)) && (7 == a12))) || ((a12 <= 5) && (a16 == 8))) || ((a12 == 9) && (a16 == 9))) || ((((a12 <= 5) && (a15 != 3)) && (a18 <= 132)) && (a16 <= 11))) || ((((a12 <= 5) && (158 <= a18)) && (a15 != 3)) && (a16 <= 11))) || (((a15 <= 3) && (a16 <= 11)) && (7 == a12))) || ((a12 == 6) && (a16 <= 11))) || (((a16 == 8) && (a15 <= 3)) && (((long long) 87 + a18) <= 0))) || (((((0 <= ((long long) 87 + a18)) && (a16 == 8)) && (a12 == 8)) && (a15 != 3)) && (a18 <= 132))) || (((a12 == 9) && (a15 <= 3)) && (a16 <= 11))) || (((0 <= ((long long) 87 + a18)) && (a12 == 9)) && (a15 <= 3))) || (((a16 == 8) && (a12 == 8)) && (((long long) a18 + 156) <= 0))) || ((((a15 <= 3) && (a12 == 8)) && (a18 <= 132)) && (11 <= a16))) || (((0 <= ((long long) 87 + a18)) && (a16 == 8)) && (7 == a12))) || ((((a15 <= 3) && (a12 == 8)) && (158 <= a18)) && (11 <= a16))) || (((5 == a12) && (a15 == 3)) && (11 <= a16))) || (((a16 == 9) && (a15 <= 3)) && (a12 == 8))) || ((a12 == 9) && (a16 == 8))) || (((a16 == 8) && (a15 <= 3)) && (158 <= a18))) || (((a16 == 9) && (5 == a12)) && (a15 == 3))) || ((((a16 == 9) && (a15 != 3)) && (a18 <= 132)) && (a12 <= 8))) || (((0 <= ((long long) 87 + a18)) && (a15 <= 3)) && (a12 == 6))) || (((a12 == 9) && (a15 <= 3)) && (((long long) a18 + 156) <= 0))) || (((a16 == 8) && (((long long) a18 + 156) <= 0)) && (7 == a12))) || ((((0 <= ((long long) 87 + a18)) && (a18 <= 132)) && (5 == a12)) && (a15 == 3)))
RESULT: Ultimate proved your program to be correct!
[2024-11-19 18:26:20,719 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---

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