./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label01.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version c7c6ca5d
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem13_label01.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 500fb51493d30e1b316117b24f5b2ae67d8f35b2c1172c5ed38f45dce818927e
--- Real Ultimate output ---
This is Ultimate 0.2.5-?-c7c6ca5-m
[2024-11-08 11:18:47,657 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-08 11:18:47,730 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-08 11:18:47,735 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 11:18:47,737 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 11:18:47,769 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 11:18:47,770 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 11:18:47,771 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 11:18:47,772 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 11:18:47,772 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-08 11:18:47,773 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 11:18:47,773 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 11:18:47,774 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 11:18:47,774 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-08 11:18:47,776 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-08 11:18:47,776 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 11:18:47,776 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-08 11:18:47,777 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-08 11:18:47,777 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-08 11:18:47,777 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-08 11:18:47,780 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-08 11:18:47,780 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 11:18:47,781 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 11:18:47,781 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 11:18:47,781 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-08 11:18:47,782 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-08 11:18:47,782 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-08 11:18:47,782 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-08 11:18:47,782 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 11:18:47,783 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-08 11:18:47,783 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 11:18:47,783 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-08 11:18:47,784 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 11:18:47,784 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 11:18:47,784 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 11:18:47,785 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 11:18:47,785 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-08 11:18:47,785 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 11:18:47,785 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 11:18:47,786 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 11:18:47,786 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 11:18:47,786 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 11:18:47,787 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 -> 500fb51493d30e1b316117b24f5b2ae67d8f35b2c1172c5ed38f45dce818927e
[2024-11-08 11:18:48,039 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 11:18:48,066 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 11:18:48,069 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 11:18:48,070 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-08 11:18:48,071 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-08 11:18:48,072 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label01.c
[2024-11-08 11:18:49,522 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-08 11:18:49,963 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-08 11:18:49,965 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label01.c
[2024-11-08 11:18:50,003 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/049f2f615/5104d637a9b04c6dab0d0b4e4c3d4c7a/FLAG97773bf28
[2024-11-08 11:18:50,019 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/049f2f615/5104d637a9b04c6dab0d0b4e4c3d4c7a
[2024-11-08 11:18:50,022 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 11:18:50,024 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 11:18:50,026 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 11:18:50,026 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 11:18:50,032 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 11:18:50,033 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:18:50" (1/1) ...
[2024-11-08 11:18:50,033 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a279c0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:50, skipping insertion in model container
[2024-11-08 11:18:50,034 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:18:50" (1/1) ...
[2024-11-08 11:18:50,142 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-08 11:18:50,462 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/Problem13_label01.c[7003,7016]
[2024-11-08 11:18:51,256 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 11:18:51,268 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-08 11:18:51,301 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/Problem13_label01.c[7003,7016]
[2024-11-08 11:18:51,818 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 11:18:51,846 INFO  L204         MainTranslator]: Completed translation
[2024-11-08 11:18:51,847 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:51 WrapperNode
[2024-11-08 11:18:51,847 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 11:18:51,849 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 11:18:51,849 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 11:18:51,849 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 11:18:51,856 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:51" (1/1) ...
[2024-11-08 11:18:51,925 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:51" (1/1) ...
[2024-11-08 11:18:52,491 INFO  L138                Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5587
[2024-11-08 11:18:52,492 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 11:18:52,493 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 11:18:52,493 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 11:18:52,493 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 11:18:52,504 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:51" (1/1) ...
[2024-11-08 11:18:52,505 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:51" (1/1) ...
[2024-11-08 11:18:52,634 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:51" (1/1) ...
[2024-11-08 11:18:52,949 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-08 11:18:52,950 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:51" (1/1) ...
[2024-11-08 11:18:52,950 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:51" (1/1) ...
[2024-11-08 11:18:53,248 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:51" (1/1) ...
[2024-11-08 11:18:53,290 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:51" (1/1) ...
[2024-11-08 11:18:53,350 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:51" (1/1) ...
[2024-11-08 11:18:53,385 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:51" (1/1) ...
[2024-11-08 11:18:53,431 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 11:18:53,432 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 11:18:53,432 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 11:18:53,432 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-08 11:18:53,433 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:51" (1/1) ...
[2024-11-08 11:18:53,438 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 11:18:53,449 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 11:18:53,484 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 11:18:53,487 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 11:18:53,521 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 11:18:53,521 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 11:18:53,522 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 11:18:53,522 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 11:18:53,584 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-08 11:18:53,586 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 11:18:59,361 INFO  L?                        ?]: Removed 738 outVars from TransFormulas that were not future-live.
[2024-11-08 11:18:59,362 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-08 11:18:59,409 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 11:18:59,409 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-08 11:18:59,410 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:18:59 BoogieIcfgContainer
[2024-11-08 11:18:59,410 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 11:18:59,412 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 11:18:59,412 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 11:18:59,415 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-08 11:18:59,416 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:18:50" (1/3) ...
[2024-11-08 11:18:59,416 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b6f155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:18:59, skipping insertion in model container
[2024-11-08 11:18:59,416 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:51" (2/3) ...
[2024-11-08 11:18:59,417 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b6f155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:18:59, skipping insertion in model container
[2024-11-08 11:18:59,417 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:18:59" (3/3) ...
[2024-11-08 11:18:59,418 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem13_label01.c
[2024-11-08 11:18:59,434 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 11:18:59,434 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 11:18:59,525 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 11:18:59,532 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;@4f58d4a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 11:18:59,532 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 11:18:59,540 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:18:59,548 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2024-11-08 11:18:59,548 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:18:59,549 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]
[2024-11-08 11:18:59,550 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:18:59,554 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:18:59,555 INFO  L85        PathProgramCache]: Analyzing trace with hash 301649817, now seen corresponding path program 1 times
[2024-11-08 11:18:59,562 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:18:59,562 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531913791]
[2024-11-08 11:18:59,563 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:18:59,563 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:18:59,714 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:18:59,973 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:18:59,973 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:18:59,974 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531913791]
[2024-11-08 11:18:59,974 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531913791] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:18:59,975 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:18:59,975 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:18:59,976 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186315056]
[2024-11-08 11:18:59,977 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:18:59,981 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:18:59,982 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:00,005 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:00,006 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:00,011 INFO  L87              Difference]: Start difference. First operand  has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 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 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:03,948 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:03,949 INFO  L93              Difference]: Finished difference Result 3082 states and 5689 transitions.
[2024-11-08 11:19:03,952 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:03,954 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 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 49
[2024-11-08 11:19:03,954 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:03,988 INFO  L225             Difference]: With dead ends: 3082
[2024-11-08 11:19:03,989 INFO  L226             Difference]: Without dead ends: 1899
[2024-11-08 11:19:03,998 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:04,004 INFO  L432           NwaCegarLoop]: 470 mSDtfsCounter, 990 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 2955 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 3554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 2955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:04,006 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 641 Invalid, 3554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 2955 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time]
[2024-11-08 11:19:04,029 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1899 states.
[2024-11-08 11:19:04,134 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1894.
[2024-11-08 11:19:04,139 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1894 states, 1893 states have (on average 1.7374537770734284) internal successors, (3289), 1893 states have internal predecessors, (3289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:04,145 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1894 states to 1894 states and 3289 transitions.
[2024-11-08 11:19:04,147 INFO  L78                 Accepts]: Start accepts. Automaton has 1894 states and 3289 transitions. Word has length 49
[2024-11-08 11:19:04,148 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:04,148 INFO  L471      AbstractCegarLoop]: Abstraction has 1894 states and 3289 transitions.
[2024-11-08 11:19:04,148 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:04,148 INFO  L276                IsEmpty]: Start isEmpty. Operand 1894 states and 3289 transitions.
[2024-11-08 11:19:04,152 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2024-11-08 11:19:04,153 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:04,153 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:19:04,154 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 11:19:04,154 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:04,155 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:04,155 INFO  L85        PathProgramCache]: Analyzing trace with hash -285580078, now seen corresponding path program 1 times
[2024-11-08 11:19:04,155 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:04,156 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326049048]
[2024-11-08 11:19:04,156 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:04,156 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:04,226 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:04,447 INFO  L134       CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:19:04,448 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:04,448 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326049048]
[2024-11-08 11:19:04,448 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326049048] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:04,449 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:04,449 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:19:04,449 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023254932]
[2024-11-08 11:19:04,450 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:04,451 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:04,451 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:04,452 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:04,452 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:04,452 INFO  L87              Difference]: Start difference. First operand 1894 states and 3289 transitions. Second operand  has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:08,667 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:08,668 INFO  L93              Difference]: Finished difference Result 5384 states and 9441 transitions.
[2024-11-08 11:19:08,668 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:08,668 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 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 114
[2024-11-08 11:19:08,669 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:08,682 INFO  L225             Difference]: With dead ends: 5384
[2024-11-08 11:19:08,682 INFO  L226             Difference]: Without dead ends: 3492
[2024-11-08 11:19:08,685 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:08,687 INFO  L432           NwaCegarLoop]: 860 mSDtfsCounter, 922 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 2310 mSolverCounterSat, 879 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 3189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 879 IncrementalHoareTripleChecker+Valid, 2310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:08,687 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 1013 Invalid, 3189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [879 Valid, 2310 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time]
[2024-11-08 11:19:08,692 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3492 states.
[2024-11-08 11:19:08,748 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3492 to 3491.
[2024-11-08 11:19:08,753 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3491 states, 3490 states have (on average 1.5383954154727795) internal successors, (5369), 3490 states have internal predecessors, (5369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:08,762 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 5369 transitions.
[2024-11-08 11:19:08,763 INFO  L78                 Accepts]: Start accepts. Automaton has 3491 states and 5369 transitions. Word has length 114
[2024-11-08 11:19:08,763 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:08,764 INFO  L471      AbstractCegarLoop]: Abstraction has 3491 states and 5369 transitions.
[2024-11-08 11:19:08,764 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:08,764 INFO  L276                IsEmpty]: Start isEmpty. Operand 3491 states and 5369 transitions.
[2024-11-08 11:19:08,768 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 117
[2024-11-08 11:19:08,771 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:08,772 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:19:08,772 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 11:19:08,772 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:08,773 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:08,773 INFO  L85        PathProgramCache]: Analyzing trace with hash -1860662409, now seen corresponding path program 1 times
[2024-11-08 11:19:08,773 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:08,774 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547761131]
[2024-11-08 11:19:08,774 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:08,774 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:08,813 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:08,969 INFO  L134       CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:19:08,971 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:08,972 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547761131]
[2024-11-08 11:19:08,972 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547761131] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:08,973 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:08,973 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:19:08,973 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480440098]
[2024-11-08 11:19:08,974 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:08,974 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:08,974 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:08,975 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:08,976 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:08,976 INFO  L87              Difference]: Start difference. First operand 3491 states and 5369 transitions. Second operand  has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:12,169 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:12,170 INFO  L93              Difference]: Finished difference Result 10169 states and 15700 transitions.
[2024-11-08 11:19:12,170 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:12,170 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 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 116
[2024-11-08 11:19:12,171 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:12,194 INFO  L225             Difference]: With dead ends: 10169
[2024-11-08 11:19:12,195 INFO  L226             Difference]: Without dead ends: 6680
[2024-11-08 11:19:12,202 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:12,203 INFO  L432           NwaCegarLoop]: 714 mSDtfsCounter, 977 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2533 mSolverCounterSat, 775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 3308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 775 IncrementalHoareTripleChecker+Valid, 2533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:12,204 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 847 Invalid, 3308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [775 Valid, 2533 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time]
[2024-11-08 11:19:12,211 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6680 states.
[2024-11-08 11:19:12,295 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6680 to 6669.
[2024-11-08 11:19:12,306 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6669 states, 6668 states have (on average 1.375224955008998) internal successors, (9170), 6668 states have internal predecessors, (9170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:12,319 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6669 states to 6669 states and 9170 transitions.
[2024-11-08 11:19:12,320 INFO  L78                 Accepts]: Start accepts. Automaton has 6669 states and 9170 transitions. Word has length 116
[2024-11-08 11:19:12,321 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:12,322 INFO  L471      AbstractCegarLoop]: Abstraction has 6669 states and 9170 transitions.
[2024-11-08 11:19:12,322 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:12,322 INFO  L276                IsEmpty]: Start isEmpty. Operand 6669 states and 9170 transitions.
[2024-11-08 11:19:12,324 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2024-11-08 11:19:12,326 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:12,326 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:19:12,327 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 11:19:12,327 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:12,327 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:12,328 INFO  L85        PathProgramCache]: Analyzing trace with hash 506522501, now seen corresponding path program 1 times
[2024-11-08 11:19:12,328 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:12,328 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314363415]
[2024-11-08 11:19:12,328 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:12,331 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:12,375 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:12,808 INFO  L134       CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:19:12,808 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:12,809 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314363415]
[2024-11-08 11:19:12,809 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314363415] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:12,809 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:12,810 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:19:12,810 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970820742]
[2024-11-08 11:19:12,810 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:12,810 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:12,811 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:12,811 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:12,811 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:12,812 INFO  L87              Difference]: Start difference. First operand 6669 states and 9170 transitions. Second operand  has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:15,435 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:15,435 INFO  L93              Difference]: Finished difference Result 14123 states and 19185 transitions.
[2024-11-08 11:19:15,436 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:15,436 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 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 160
[2024-11-08 11:19:15,436 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:15,477 INFO  L225             Difference]: With dead ends: 14123
[2024-11-08 11:19:15,478 INFO  L226             Difference]: Without dead ends: 7456
[2024-11-08 11:19:15,488 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:15,493 INFO  L432           NwaCegarLoop]: 1086 mSDtfsCounter, 678 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 2577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:15,493 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1215 Invalid, 2577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2523 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2024-11-08 11:19:15,503 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7456 states.
[2024-11-08 11:19:15,609 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7456 to 7456.
[2024-11-08 11:19:15,620 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7456 states, 7455 states have (on average 1.3362843729040912) internal successors, (9962), 7455 states have internal predecessors, (9962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:15,634 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7456 states to 7456 states and 9962 transitions.
[2024-11-08 11:19:15,634 INFO  L78                 Accepts]: Start accepts. Automaton has 7456 states and 9962 transitions. Word has length 160
[2024-11-08 11:19:15,636 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:15,636 INFO  L471      AbstractCegarLoop]: Abstraction has 7456 states and 9962 transitions.
[2024-11-08 11:19:15,636 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:15,636 INFO  L276                IsEmpty]: Start isEmpty. Operand 7456 states and 9962 transitions.
[2024-11-08 11:19:15,638 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 175
[2024-11-08 11:19:15,639 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:15,639 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:19:15,639 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 11:19:15,640 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:15,640 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:15,641 INFO  L85        PathProgramCache]: Analyzing trace with hash -1459044689, now seen corresponding path program 1 times
[2024-11-08 11:19:15,641 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:15,641 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267265307]
[2024-11-08 11:19:15,641 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:15,641 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:15,679 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:15,846 INFO  L134       CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:19:15,847 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:15,848 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267265307]
[2024-11-08 11:19:15,848 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267265307] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:15,849 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:15,849 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:19:15,849 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657694204]
[2024-11-08 11:19:15,850 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:15,850 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 11:19:15,851 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:15,851 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 11:19:15,852 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:19:15,852 INFO  L87              Difference]: Start difference. First operand 7456 states and 9962 transitions. Second operand  has 4 states, 4 states have (on average 43.5) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:22,452 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:22,452 INFO  L93              Difference]: Finished difference Result 26116 states and 35959 transitions.
[2024-11-08 11:19:22,453 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 11:19:22,453 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 43.5) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 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 174
[2024-11-08 11:19:22,454 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:22,501 INFO  L225             Difference]: With dead ends: 26116
[2024-11-08 11:19:22,501 INFO  L226             Difference]: Without dead ends: 19449
[2024-11-08 11:19:22,513 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:19:22,514 INFO  L432           NwaCegarLoop]: 899 mSDtfsCounter, 1640 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 6106 mSolverCounterSat, 650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 6756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 6106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:22,515 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1640 Valid, 1071 Invalid, 6756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 6106 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time]
[2024-11-08 11:19:22,534 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19449 states.
[2024-11-08 11:19:22,732 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19449 to 19303.
[2024-11-08 11:19:22,762 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19303 states, 19302 states have (on average 1.2778468552481608) internal successors, (24665), 19302 states have internal predecessors, (24665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:22,790 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19303 states to 19303 states and 24665 transitions.
[2024-11-08 11:19:22,790 INFO  L78                 Accepts]: Start accepts. Automaton has 19303 states and 24665 transitions. Word has length 174
[2024-11-08 11:19:22,791 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:22,791 INFO  L471      AbstractCegarLoop]: Abstraction has 19303 states and 24665 transitions.
[2024-11-08 11:19:22,791 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 43.5) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:22,791 INFO  L276                IsEmpty]: Start isEmpty. Operand 19303 states and 24665 transitions.
[2024-11-08 11:19:22,795 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 262
[2024-11-08 11:19:22,795 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:22,795 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:19:22,795 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-08 11:19:22,796 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:22,796 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:22,796 INFO  L85        PathProgramCache]: Analyzing trace with hash 1058846290, now seen corresponding path program 1 times
[2024-11-08 11:19:22,796 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:22,797 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871488825]
[2024-11-08 11:19:22,797 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:22,797 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:22,848 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:23,261 INFO  L134       CoverageAnalysis]: Checked inductivity of 188 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked.
[2024-11-08 11:19:23,261 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:23,261 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871488825]
[2024-11-08 11:19:23,262 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871488825] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:23,262 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:23,262 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:19:23,262 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194024895]
[2024-11-08 11:19:23,263 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:23,263 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:23,263 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:23,264 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:23,264 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:23,265 INFO  L87              Difference]: Start difference. First operand 19303 states and 24665 transitions. Second operand  has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:26,064 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:26,064 INFO  L93              Difference]: Finished difference Result 33881 states and 44171 transitions.
[2024-11-08 11:19:26,065 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:26,066 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 261
[2024-11-08 11:19:26,067 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:26,102 INFO  L225             Difference]: With dead ends: 33881
[2024-11-08 11:19:26,103 INFO  L226             Difference]: Without dead ends: 19312
[2024-11-08 11:19:26,124 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:26,126 INFO  L432           NwaCegarLoop]: 1028 mSDtfsCounter, 728 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 2715 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 2719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:26,126 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 1212 Invalid, 2719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2715 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2024-11-08 11:19:26,146 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19312 states.
[2024-11-08 11:19:26,334 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19312 to 19303.
[2024-11-08 11:19:26,355 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19303 states, 19302 states have (on average 1.2765516526784788) internal successors, (24640), 19302 states have internal predecessors, (24640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:26,382 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19303 states to 19303 states and 24640 transitions.
[2024-11-08 11:19:26,385 INFO  L78                 Accepts]: Start accepts. Automaton has 19303 states and 24640 transitions. Word has length 261
[2024-11-08 11:19:26,387 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:26,387 INFO  L471      AbstractCegarLoop]: Abstraction has 19303 states and 24640 transitions.
[2024-11-08 11:19:26,388 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:26,388 INFO  L276                IsEmpty]: Start isEmpty. Operand 19303 states and 24640 transitions.
[2024-11-08 11:19:26,391 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 264
[2024-11-08 11:19:26,391 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:26,392 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 11:19:26,392 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-08 11:19:26,392 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:26,392 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:26,393 INFO  L85        PathProgramCache]: Analyzing trace with hash -1215870024, now seen corresponding path program 1 times
[2024-11-08 11:19:26,393 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:26,393 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248152810]
[2024-11-08 11:19:26,393 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:26,393 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:26,438 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:26,548 INFO  L134       CoverageAnalysis]: Checked inductivity of 181 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:19:26,548 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:26,548 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248152810]
[2024-11-08 11:19:26,548 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248152810] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:26,548 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:26,548 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:19:26,549 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244252539]
[2024-11-08 11:19:26,549 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:26,549 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:26,549 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:26,550 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:26,550 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:26,550 INFO  L87              Difference]: Start difference. First operand 19303 states and 24640 transitions. Second operand  has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:30,027 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:30,028 INFO  L93              Difference]: Finished difference Result 51975 states and 67214 transitions.
[2024-11-08 11:19:30,029 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:30,029 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 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 263
[2024-11-08 11:19:30,030 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:30,092 INFO  L225             Difference]: With dead ends: 51975
[2024-11-08 11:19:30,092 INFO  L226             Difference]: Without dead ends: 32674
[2024-11-08 11:19:30,115 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:30,116 INFO  L432           NwaCegarLoop]: 1854 mSDtfsCounter, 843 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 2479 mSolverCounterSat, 807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 3286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 807 IncrementalHoareTripleChecker+Valid, 2479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:30,116 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 1993 Invalid, 3286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [807 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2024-11-08 11:19:30,144 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 32674 states.
[2024-11-08 11:19:30,433 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 32674 to 31881.
[2024-11-08 11:19:30,461 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 31881 states, 31880 states have (on average 1.224215809284818) internal successors, (39028), 31880 states have internal predecessors, (39028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:30,507 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 31881 states to 31881 states and 39028 transitions.
[2024-11-08 11:19:30,508 INFO  L78                 Accepts]: Start accepts. Automaton has 31881 states and 39028 transitions. Word has length 263
[2024-11-08 11:19:30,508 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:30,508 INFO  L471      AbstractCegarLoop]: Abstraction has 31881 states and 39028 transitions.
[2024-11-08 11:19:30,509 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:30,509 INFO  L276                IsEmpty]: Start isEmpty. Operand 31881 states and 39028 transitions.
[2024-11-08 11:19:30,513 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 286
[2024-11-08 11:19:30,513 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:30,513 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:19:30,514 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-08 11:19:30,514 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:30,514 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:30,514 INFO  L85        PathProgramCache]: Analyzing trace with hash -852280536, now seen corresponding path program 1 times
[2024-11-08 11:19:30,515 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:30,515 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56124213]
[2024-11-08 11:19:30,515 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:30,515 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:30,557 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:30,687 INFO  L134       CoverageAnalysis]: Checked inductivity of 345 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked.
[2024-11-08 11:19:30,688 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:30,688 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56124213]
[2024-11-08 11:19:30,688 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56124213] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:30,689 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:30,689 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:19:30,690 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462384863]
[2024-11-08 11:19:30,690 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:30,691 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:30,691 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:30,692 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:30,692 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:30,692 INFO  L87              Difference]: Start difference. First operand 31881 states and 39028 transitions. Second operand  has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:34,002 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:34,002 INFO  L93              Difference]: Finished difference Result 88168 states and 109034 transitions.
[2024-11-08 11:19:34,002 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:34,003 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 285
[2024-11-08 11:19:34,003 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:34,093 INFO  L225             Difference]: With dead ends: 88168
[2024-11-08 11:19:34,093 INFO  L226             Difference]: Without dead ends: 57076
[2024-11-08 11:19:34,124 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:34,126 INFO  L432           NwaCegarLoop]: 783 mSDtfsCounter, 885 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 2379 mSolverCounterSat, 916 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 3295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 916 IncrementalHoareTripleChecker+Valid, 2379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:34,126 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 900 Invalid, 3295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [916 Valid, 2379 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2024-11-08 11:19:34,171 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57076 states.
[2024-11-08 11:19:34,619 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57076 to 55492.
[2024-11-08 11:19:34,661 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 55492 states, 55491 states have (on average 1.1844263033645095) internal successors, (65725), 55491 states have internal predecessors, (65725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:34,723 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 55492 states to 55492 states and 65725 transitions.
[2024-11-08 11:19:34,724 INFO  L78                 Accepts]: Start accepts. Automaton has 55492 states and 65725 transitions. Word has length 285
[2024-11-08 11:19:34,724 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:34,724 INFO  L471      AbstractCegarLoop]: Abstraction has 55492 states and 65725 transitions.
[2024-11-08 11:19:34,724 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:34,724 INFO  L276                IsEmpty]: Start isEmpty. Operand 55492 states and 65725 transitions.
[2024-11-08 11:19:34,727 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 291
[2024-11-08 11:19:34,728 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:34,728 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 11:19:34,728 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-08 11:19:34,728 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:34,728 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:34,729 INFO  L85        PathProgramCache]: Analyzing trace with hash 336538634, now seen corresponding path program 1 times
[2024-11-08 11:19:34,729 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:34,729 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935396265]
[2024-11-08 11:19:34,729 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:34,729 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:34,774 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:35,952 INFO  L134       CoverageAnalysis]: Checked inductivity of 206 backedges. 93 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:19:35,952 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:35,953 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935396265]
[2024-11-08 11:19:35,953 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935396265] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 11:19:35,953 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918079105]
[2024-11-08 11:19:35,953 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:35,953 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 11:19:35,953 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 11:19:35,956 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 11:19:35,958 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 11:19:36,248 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:36,252 INFO  L255         TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-08 11:19:36,266 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 11:19:36,358 INFO  L134       CoverageAnalysis]: Checked inductivity of 206 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked.
[2024-11-08 11:19:36,359 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 11:19:36,359 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918079105] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:36,359 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 11:19:36,359 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9
[2024-11-08 11:19:36,360 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267666907]
[2024-11-08 11:19:36,360 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:36,360 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:36,360 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:36,361 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:36,361 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-08 11:19:36,361 INFO  L87              Difference]: Start difference. First operand 55492 states and 65725 transitions. Second operand  has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:39,139 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:39,139 INFO  L93              Difference]: Finished difference Result 108618 states and 128700 transitions.
[2024-11-08 11:19:39,140 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:39,140 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 290
[2024-11-08 11:19:39,140 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:39,203 INFO  L225             Difference]: With dead ends: 108618
[2024-11-08 11:19:39,203 INFO  L226             Difference]: Without dead ends: 53915
[2024-11-08 11:19:39,244 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-08 11:19:39,245 INFO  L432           NwaCegarLoop]: 1360 mSDtfsCounter, 1158 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 2470 mSolverCounterSat, 446 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 2470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:39,245 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 1442 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [446 Valid, 2470 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2024-11-08 11:19:39,292 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 53915 states.
[2024-11-08 11:19:39,918 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 53915 to 53914.
[2024-11-08 11:19:39,964 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 53914 states, 53913 states have (on average 1.1423218889692652) internal successors, (61586), 53913 states have internal predecessors, (61586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:40,064 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 53914 states to 53914 states and 61586 transitions.
[2024-11-08 11:19:40,065 INFO  L78                 Accepts]: Start accepts. Automaton has 53914 states and 61586 transitions. Word has length 290
[2024-11-08 11:19:40,065 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:40,065 INFO  L471      AbstractCegarLoop]: Abstraction has 53914 states and 61586 transitions.
[2024-11-08 11:19:40,066 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:40,066 INFO  L276                IsEmpty]: Start isEmpty. Operand 53914 states and 61586 transitions.
[2024-11-08 11:19:40,073 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 341
[2024-11-08 11:19:40,073 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:40,074 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 11:19:40,094 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-08 11:19:40,274 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 11:19:40,275 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:40,275 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:40,275 INFO  L85        PathProgramCache]: Analyzing trace with hash -481816083, now seen corresponding path program 1 times
[2024-11-08 11:19:40,275 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:40,276 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323810031]
[2024-11-08 11:19:40,276 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:40,276 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:40,362 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:40,914 INFO  L134       CoverageAnalysis]: Checked inductivity of 217 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked.
[2024-11-08 11:19:40,914 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:40,914 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323810031]
[2024-11-08 11:19:40,914 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323810031] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:40,915 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:40,915 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:19:40,915 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663607514]
[2024-11-08 11:19:40,915 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:40,915 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:40,915 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:40,916 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:40,917 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:40,917 INFO  L87              Difference]: Start difference. First operand 53914 states and 61586 transitions. Second operand  has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:43,872 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:43,873 INFO  L93              Difference]: Finished difference Result 106243 states and 121493 transitions.
[2024-11-08 11:19:43,873 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:43,873 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 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 340
[2024-11-08 11:19:43,874 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:43,928 INFO  L225             Difference]: With dead ends: 106243
[2024-11-08 11:19:43,928 INFO  L226             Difference]: Without dead ends: 53118
[2024-11-08 11:19:43,954 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
[2024-11-08 11:19:43,955 INFO  L432           NwaCegarLoop]: 690 mSDtfsCounter, 1093 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 528 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 2921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 528 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:43,955 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 822 Invalid, 2921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [528 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-08 11:19:43,996 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 53118 states.
[2024-11-08 11:19:44,568 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 53118 to 53117.
[2024-11-08 11:19:44,606 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 53117 states, 53116 states have (on average 1.1028127118005875) internal successors, (58577), 53116 states have internal predecessors, (58577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:44,705 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 53117 states to 53117 states and 58577 transitions.
[2024-11-08 11:19:44,706 INFO  L78                 Accepts]: Start accepts. Automaton has 53117 states and 58577 transitions. Word has length 340
[2024-11-08 11:19:44,706 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:44,707 INFO  L471      AbstractCegarLoop]: Abstraction has 53117 states and 58577 transitions.
[2024-11-08 11:19:44,707 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:44,707 INFO  L276                IsEmpty]: Start isEmpty. Operand 53117 states and 58577 transitions.
[2024-11-08 11:19:44,715 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 379
[2024-11-08 11:19:44,715 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:44,716 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:19:44,716 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-08 11:19:44,716 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:44,717 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:44,717 INFO  L85        PathProgramCache]: Analyzing trace with hash -1478632373, now seen corresponding path program 1 times
[2024-11-08 11:19:44,717 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:44,717 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521941769]
[2024-11-08 11:19:44,717 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:44,718 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:44,797 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:45,220 INFO  L134       CoverageAnalysis]: Checked inductivity of 632 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked.
[2024-11-08 11:19:45,221 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:45,221 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521941769]
[2024-11-08 11:19:45,221 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521941769] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:45,221 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:45,222 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:19:45,222 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094790846]
[2024-11-08 11:19:45,222 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:45,222 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:45,222 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:45,223 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:45,223 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:45,223 INFO  L87              Difference]: Start difference. First operand 53117 states and 58577 transitions. Second operand  has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:48,353 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:48,353 INFO  L93              Difference]: Finished difference Result 125926 states and 138380 transitions.
[2024-11-08 11:19:48,354 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:48,354 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 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 378
[2024-11-08 11:19:48,354 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:48,432 INFO  L225             Difference]: With dead ends: 125926
[2024-11-08 11:19:48,432 INFO  L226             Difference]: Without dead ends: 73598
[2024-11-08 11:19:48,452 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:48,452 INFO  L432           NwaCegarLoop]: 1267 mSDtfsCounter, 1059 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 2469 mSolverCounterSat, 713 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 3182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 713 IncrementalHoareTripleChecker+Valid, 2469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:48,452 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 1317 Invalid, 3182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [713 Valid, 2469 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-08 11:19:48,494 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 73598 states.
[2024-11-08 11:19:49,254 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 73598 to 72002.
[2024-11-08 11:19:49,296 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 72002 states, 72001 states have (on average 1.0851238177247537) internal successors, (78130), 72001 states have internal predecessors, (78130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:49,367 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 72002 states to 72002 states and 78130 transitions.
[2024-11-08 11:19:49,368 INFO  L78                 Accepts]: Start accepts. Automaton has 72002 states and 78130 transitions. Word has length 378
[2024-11-08 11:19:49,368 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:49,369 INFO  L471      AbstractCegarLoop]: Abstraction has 72002 states and 78130 transitions.
[2024-11-08 11:19:49,369 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:49,369 INFO  L276                IsEmpty]: Start isEmpty. Operand 72002 states and 78130 transitions.
[2024-11-08 11:19:49,384 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 481
[2024-11-08 11:19:49,384 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:49,385 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:19:49,385 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-08 11:19:49,385 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:49,386 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:49,386 INFO  L85        PathProgramCache]: Analyzing trace with hash -1911303454, now seen corresponding path program 1 times
[2024-11-08 11:19:49,386 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:49,386 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694235553]
[2024-11-08 11:19:49,386 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:49,386 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:49,455 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:49,927 INFO  L134       CoverageAnalysis]: Checked inductivity of 758 backedges. 486 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked.
[2024-11-08 11:19:49,928 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:49,928 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694235553]
[2024-11-08 11:19:49,928 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694235553] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:49,928 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:49,929 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:19:49,930 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169128189]
[2024-11-08 11:19:49,931 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:49,931 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:49,931 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:49,932 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:49,932 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:49,932 INFO  L87              Difference]: Start difference. First operand 72002 states and 78130 transitions. Second operand  has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:53,533 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:53,534 INFO  L93              Difference]: Finished difference Result 160543 states and 175216 transitions.
[2024-11-08 11:19:53,534 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:53,534 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 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 480
[2024-11-08 11:19:53,535 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:53,639 INFO  L225             Difference]: With dead ends: 160543
[2024-11-08 11:19:53,640 INFO  L226             Difference]: Without dead ends: 88543
[2024-11-08 11:19:53,680 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:53,680 INFO  L432           NwaCegarLoop]: 1829 mSDtfsCounter, 728 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 2580 mSolverCounterSat, 613 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 3193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 613 IncrementalHoareTripleChecker+Valid, 2580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:53,680 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 1977 Invalid, 3193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [613 Valid, 2580 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2024-11-08 11:19:53,739 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 88543 states.
[2024-11-08 11:19:54,498 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 88543 to 86954.
[2024-11-08 11:19:54,547 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 86954 states, 86953 states have (on average 1.073384472071119) internal successors, (93334), 86953 states have internal predecessors, (93334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:54,628 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 86954 states to 86954 states and 93334 transitions.
[2024-11-08 11:19:54,628 INFO  L78                 Accepts]: Start accepts. Automaton has 86954 states and 93334 transitions. Word has length 480
[2024-11-08 11:19:54,629 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:54,629 INFO  L471      AbstractCegarLoop]: Abstraction has 86954 states and 93334 transitions.
[2024-11-08 11:19:54,629 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:54,629 INFO  L276                IsEmpty]: Start isEmpty. Operand 86954 states and 93334 transitions.
[2024-11-08 11:19:54,644 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 490
[2024-11-08 11:19:54,644 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:54,645 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:19:54,645 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-08 11:19:54,645 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:54,645 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:54,646 INFO  L85        PathProgramCache]: Analyzing trace with hash 1335862030, now seen corresponding path program 1 times
[2024-11-08 11:19:54,646 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:54,646 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872917475]
[2024-11-08 11:19:54,646 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:54,646 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:54,917 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:55,120 INFO  L134       CoverageAnalysis]: Checked inductivity of 991 backedges. 558 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked.
[2024-11-08 11:19:55,121 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:55,121 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872917475]
[2024-11-08 11:19:55,121 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872917475] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:55,121 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:55,121 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:19:55,121 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874627088]
[2024-11-08 11:19:55,121 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:55,122 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:55,122 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:55,123 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:55,123 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:55,124 INFO  L87              Difference]: Start difference. First operand 86954 states and 93334 transitions. Second operand  has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:19:58,936 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:58,936 INFO  L93              Difference]: Finished difference Result 191231 states and 206463 transitions.
[2024-11-08 11:19:58,939 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:58,940 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 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 489
[2024-11-08 11:19:58,940 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:59,067 INFO  L225             Difference]: With dead ends: 191231
[2024-11-08 11:19:59,067 INFO  L226             Difference]: Without dead ends: 105066
[2024-11-08 11:19:59,084 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:59,085 INFO  L432           NwaCegarLoop]: 664 mSDtfsCounter, 918 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 2368 mSolverCounterSat, 932 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 3300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 932 IncrementalHoareTripleChecker+Valid, 2368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:59,085 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 744 Invalid, 3300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [932 Valid, 2368 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2024-11-08 11:19:59,151 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 105066 states.
[2024-11-08 11:20:00,034 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 105066 to 104265.
[2024-11-08 11:20:00,103 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 104265 states, 104264 states have (on average 1.0756253356863348) internal successors, (112149), 104264 states have internal predecessors, (112149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:20:00,213 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 104265 states to 104265 states and 112149 transitions.
[2024-11-08 11:20:00,213 INFO  L78                 Accepts]: Start accepts. Automaton has 104265 states and 112149 transitions. Word has length 489
[2024-11-08 11:20:00,214 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:20:00,214 INFO  L471      AbstractCegarLoop]: Abstraction has 104265 states and 112149 transitions.
[2024-11-08 11:20:00,214 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:20:00,214 INFO  L276                IsEmpty]: Start isEmpty. Operand 104265 states and 112149 transitions.
[2024-11-08 11:20:00,227 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 507
[2024-11-08 11:20:00,227 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:20:00,227 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:20:00,228 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-08 11:20:00,228 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:20:00,228 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:20:00,228 INFO  L85        PathProgramCache]: Analyzing trace with hash 1877826396, now seen corresponding path program 1 times
[2024-11-08 11:20:00,228 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:20:00,228 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944610969]
[2024-11-08 11:20:00,228 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:20:00,228 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:20:00,647 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:20:01,422 INFO  L134       CoverageAnalysis]: Checked inductivity of 528 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked.
[2024-11-08 11:20:01,423 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:20:01,423 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944610969]
[2024-11-08 11:20:01,423 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944610969] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:20:01,423 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:20:01,423 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:20:01,424 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463551979]
[2024-11-08 11:20:01,424 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:20:01,425 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:20:01,425 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:20:01,426 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:20:01,426 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:20:01,426 INFO  L87              Difference]: Start difference. First operand 104265 states and 112149 transitions. Second operand  has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:20:04,875 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:20:04,875 INFO  L93              Difference]: Finished difference Result 204561 states and 220949 transitions.
[2024-11-08 11:20:04,876 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:20:04,876 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 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 506
[2024-11-08 11:20:04,876 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:20:05,002 INFO  L225             Difference]: With dead ends: 204561
[2024-11-08 11:20:05,003 INFO  L226             Difference]: Without dead ends: 113683
[2024-11-08 11:20:05,030 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
[2024-11-08 11:20:05,031 INFO  L432           NwaCegarLoop]: 342 mSDtfsCounter, 1175 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 756 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 3011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 756 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2024-11-08 11:20:05,031 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1175 Valid, 354 Invalid, 3011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [756 Valid, 2255 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2024-11-08 11:20:05,099 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 113683 states.
[2024-11-08 11:20:06,039 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 113683 to 113683.
[2024-11-08 11:20:06,117 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 113683 states, 113682 states have (on average 1.0711986066395736) internal successors, (121776), 113682 states have internal predecessors, (121776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:20:06,588 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 113683 states to 113683 states and 121776 transitions.
[2024-11-08 11:20:06,589 INFO  L78                 Accepts]: Start accepts. Automaton has 113683 states and 121776 transitions. Word has length 506
[2024-11-08 11:20:06,589 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:20:06,589 INFO  L471      AbstractCegarLoop]: Abstraction has 113683 states and 121776 transitions.
[2024-11-08 11:20:06,589 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:20:06,590 INFO  L276                IsEmpty]: Start isEmpty. Operand 113683 states and 121776 transitions.
[2024-11-08 11:20:06,608 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 552
[2024-11-08 11:20:06,609 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:20:06,610 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:20:06,610 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-08 11:20:06,611 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:20:06,611 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:20:06,612 INFO  L85        PathProgramCache]: Analyzing trace with hash -1474042506, now seen corresponding path program 1 times
[2024-11-08 11:20:06,612 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:20:06,614 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972650943]
[2024-11-08 11:20:06,615 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:20:06,615 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms