./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label27.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version fca748b1
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label27.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 e8feab662bc73c18f88b757dfbe2687c764aa0043a35ed648ed6332a38c0448d
--- Real Ultimate output ---
This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m
[2024-11-19 18:12:48,050 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-19 18:12:48,115 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-19 18:12:48,122 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-19 18:12:48,124 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-19 18:12:48,166 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-19 18:12:48,169 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-19 18:12:48,169 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-19 18:12:48,170 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-19 18:12:48,172 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-19 18:12:48,172 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-19 18:12:48,172 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-19 18:12:48,173 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-19 18:12:48,195 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-19 18:12:48,195 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-19 18:12:48,196 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-19 18:12:48,196 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-19 18:12:48,196 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-19 18:12:48,196 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-19 18:12:48,197 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-19 18:12:48,197 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-19 18:12:48,198 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-19 18:12:48,200 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-19 18:12:48,201 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-19 18:12:48,201 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-19 18:12:48,201 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-19 18:12:48,202 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-19 18:12:48,202 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-19 18:12:48,202 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-19 18:12:48,202 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-19 18:12:48,203 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-19 18:12:48,203 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-19 18:12:48,203 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-19 18:12:48,203 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-19 18:12:48,204 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-19 18:12:48,204 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-19 18:12:48,204 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-19 18:12:48,204 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-19 18:12:48,205 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-19 18:12:48,206 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-19 18:12:48,206 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-19 18:12:48,206 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-19 18:12:48,207 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 -> e8feab662bc73c18f88b757dfbe2687c764aa0043a35ed648ed6332a38c0448d
[2024-11-19 18:12:48,459 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-19 18:12:48,482 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-19 18:12:48,485 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-19 18:12:48,486 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-19 18:12:48,487 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-19 18:12:48,488 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label27.c
[2024-11-19 18:12:49,892 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-19 18:12:50,365 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-19 18:12:50,367 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label27.c
[2024-11-19 18:12:50,408 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aec3022a/09d629c93f9e48c9a772163353e274ad/FLAG9ab71ad4b
[2024-11-19 18:12:50,471 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aec3022a/09d629c93f9e48c9a772163353e274ad
[2024-11-19 18:12:50,476 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-19 18:12:50,478 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-19 18:12:50,479 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-19 18:12:50,479 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-19 18:12:50,484 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-19 18:12:50,485 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:12:50" (1/1) ...
[2024-11-19 18:12:50,487 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f4557e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:12:50, skipping insertion in model container
[2024-11-19 18:12:50,487 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:12:50" (1/1) ...
[2024-11-19 18:12:50,638 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-19 18:12:50,936 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_label27.c[6468,6481]
[2024-11-19 18:12:51,728 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-19 18:12:51,741 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-19 18:12:51,767 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_label27.c[6468,6481]
[2024-11-19 18:12:52,273 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-19 18:12:52,303 INFO  L204         MainTranslator]: Completed translation
[2024-11-19 18:12:52,304 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:12:52 WrapperNode
[2024-11-19 18:12:52,304 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-19 18:12:52,305 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-19 18:12:52,305 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-19 18:12:52,305 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-19 18:12:52,313 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:12:52" (1/1) ...
[2024-11-19 18:12:52,381 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:12:52" (1/1) ...
[2024-11-19 18:12:52,855 INFO  L138                Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5587
[2024-11-19 18:12:52,856 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-19 18:12:52,857 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-19 18:12:52,857 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-19 18:12:52,857 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-19 18:12:52,868 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:12:52" (1/1) ...
[2024-11-19 18:12:52,868 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:12:52" (1/1) ...
[2024-11-19 18:12:52,935 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:12:52" (1/1) ...
[2024-11-19 18:12:53,276 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-19 18:12:53,276 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:12:52" (1/1) ...
[2024-11-19 18:12:53,277 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:12:52" (1/1) ...
[2024-11-19 18:12:53,665 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:12:52" (1/1) ...
[2024-11-19 18:12:53,716 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:12:52" (1/1) ...
[2024-11-19 18:12:53,767 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:12:52" (1/1) ...
[2024-11-19 18:12:53,793 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:12:52" (1/1) ...
[2024-11-19 18:12:53,847 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-19 18:12:53,849 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-19 18:12:53,849 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-19 18:12:53,849 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-19 18:12:53,850 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:12:52" (1/1) ...
[2024-11-19 18:12:53,855 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-19 18:12:53,865 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 18:12:53,881 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-19 18:12:53,883 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-19 18:12:53,923 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-19 18:12:53,923 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-19 18:12:53,923 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-19 18:12:53,923 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-19 18:12:53,987 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-19 18:12:53,989 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-19 18:12:59,584 INFO  L?                        ?]: Removed 738 outVars from TransFormulas that were not future-live.
[2024-11-19 18:12:59,584 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-19 18:12:59,628 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-19 18:12:59,628 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-19 18:12:59,628 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:12:59 BoogieIcfgContainer
[2024-11-19 18:12:59,628 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-19 18:12:59,631 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-19 18:12:59,632 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-19 18:12:59,635 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-19 18:12:59,636 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:12:50" (1/3) ...
[2024-11-19 18:12:59,636 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@932b517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:12:59, skipping insertion in model container
[2024-11-19 18:12:59,637 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:12:52" (2/3) ...
[2024-11-19 18:12:59,638 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@932b517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:12:59, skipping insertion in model container
[2024-11-19 18:12:59,638 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:12:59" (3/3) ...
[2024-11-19 18:12:59,640 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem13_label27.c
[2024-11-19 18:12:59,658 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-19 18:12:59,658 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-19 18:12:59,765 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-19 18:12:59,771 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;@70933888, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-19 18:12:59,771 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-19 18:12:59,780 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)
[2024-11-19 18:12:59,788 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2024-11-19 18:12:59,788 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:12:59,789 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]
[2024-11-19 18:12:59,790 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:12:59,794 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:12:59,794 INFO  L85        PathProgramCache]: Analyzing trace with hash -2068820151, now seen corresponding path program 1 times
[2024-11-19 18:12:59,800 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:12:59,801 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619739150]
[2024-11-19 18:12:59,801 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:12:59,801 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:12:59,925 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:13:00,138 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:13:00,139 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:13:00,139 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619739150]
[2024-11-19 18:13:00,140 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619739150] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:13:00,140 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:13:00,140 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:13:00,143 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312347258]
[2024-11-19 18:13:00,143 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:13:00,148 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:13:00,149 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:13:00,176 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:13:00,177 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:00,181 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 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:04,512 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:13:04,513 INFO  L93              Difference]: Finished difference Result 3160 states and 5843 transitions.
[2024-11-19 18:13:04,514 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:13:04,515 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 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 45
[2024-11-19 18:13:04,516 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:13:04,549 INFO  L225             Difference]: With dead ends: 3160
[2024-11-19 18:13:04,549 INFO  L226             Difference]: Without dead ends: 1983
[2024-11-19 18:13:04,559 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:04,562 INFO  L432           NwaCegarLoop]: 243 mSDtfsCounter, 1058 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 3030 mSolverCounterSat, 974 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 4004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 974 IncrementalHoareTripleChecker+Valid, 3030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2024-11-19 18:13:04,563 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 340 Invalid, 4004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [974 Valid, 3030 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time]
[2024-11-19 18:13:04,583 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1983 states.
[2024-11-19 18:13:04,661 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1930.
[2024-11-19 18:13:04,665 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1930 states, 1929 states have (on average 1.7973043027475375) internal successors, (3467), 1929 states have internal predecessors, (3467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:04,671 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1930 states to 1930 states and 3467 transitions.
[2024-11-19 18:13:04,673 INFO  L78                 Accepts]: Start accepts. Automaton has 1930 states and 3467 transitions. Word has length 45
[2024-11-19 18:13:04,673 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:13:04,674 INFO  L471      AbstractCegarLoop]: Abstraction has 1930 states and 3467 transitions.
[2024-11-19 18:13:04,674 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:04,674 INFO  L276                IsEmpty]: Start isEmpty. Operand 1930 states and 3467 transitions.
[2024-11-19 18:13:04,677 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 111
[2024-11-19 18:13:04,677 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:13:04,677 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:13:04,678 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-19 18:13:04,678 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:13:04,678 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:13:04,679 INFO  L85        PathProgramCache]: Analyzing trace with hash 331802818, now seen corresponding path program 1 times
[2024-11-19 18:13:04,679 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:13:04,679 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287084424]
[2024-11-19 18:13:04,679 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:13:04,680 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:13:04,741 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:13:04,997 INFO  L134       CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:13:04,998 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:13:04,998 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287084424]
[2024-11-19 18:13:04,998 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287084424] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:13:04,998 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:13:04,998 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:13:04,999 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821912311]
[2024-11-19 18:13:04,999 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:13:05,000 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:13:05,001 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:13:05,001 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:13:05,001 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:05,002 INFO  L87              Difference]: Start difference. First operand 1930 states and 3467 transitions. Second operand  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:08,592 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:13:08,593 INFO  L93              Difference]: Finished difference Result 5456 states and 9917 transitions.
[2024-11-19 18:13:08,593 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:13:08,593 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110
[2024-11-19 18:13:08,594 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:13:08,606 INFO  L225             Difference]: With dead ends: 5456
[2024-11-19 18:13:08,606 INFO  L226             Difference]: Without dead ends: 3528
[2024-11-19 18:13:08,610 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:08,611 INFO  L432           NwaCegarLoop]: 855 mSDtfsCounter, 923 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 878 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 3187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 878 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time
[2024-11-19 18:13:08,612 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 1007 Invalid, 3187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [878 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time]
[2024-11-19 18:13:08,616 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3528 states.
[2024-11-19 18:13:08,657 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3528 to 3526.
[2024-11-19 18:13:08,662 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3526 states, 3525 states have (on average 1.5670921985815602) internal successors, (5524), 3525 states have internal predecessors, (5524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:08,668 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 5524 transitions.
[2024-11-19 18:13:08,669 INFO  L78                 Accepts]: Start accepts. Automaton has 3526 states and 5524 transitions. Word has length 110
[2024-11-19 18:13:08,671 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:13:08,672 INFO  L471      AbstractCegarLoop]: Abstraction has 3526 states and 5524 transitions.
[2024-11-19 18:13:08,672 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:08,672 INFO  L276                IsEmpty]: Start isEmpty. Operand 3526 states and 5524 transitions.
[2024-11-19 18:13:08,676 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 117
[2024-11-19 18:13:08,676 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:13:08,677 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:13:08,677 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-19 18:13:08,677 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:13:08,678 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:13:08,678 INFO  L85        PathProgramCache]: Analyzing trace with hash -748334831, now seen corresponding path program 1 times
[2024-11-19 18:13:08,678 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:13:08,678 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626372037]
[2024-11-19 18:13:08,679 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:13:08,679 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:13:08,709 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:13:08,851 INFO  L134       CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:13:08,852 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:13:08,852 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626372037]
[2024-11-19 18:13:08,852 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626372037] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:13:08,852 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:13:08,852 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:13:08,852 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896092980]
[2024-11-19 18:13:08,853 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:13:08,853 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:13:08,853 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:13:08,854 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:13:08,854 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:08,854 INFO  L87              Difference]: Start difference. First operand 3526 states and 5524 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)
[2024-11-19 18:13:11,844 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:13:11,844 INFO  L93              Difference]: Finished difference Result 10232 states and 16097 transitions.
[2024-11-19 18:13:11,845 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:13:11,845 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
[2024-11-19 18:13:11,846 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:13:11,871 INFO  L225             Difference]: With dead ends: 10232
[2024-11-19 18:13:11,871 INFO  L226             Difference]: Without dead ends: 6708
[2024-11-19 18:13:11,878 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:11,879 INFO  L432           NwaCegarLoop]: 717 mSDtfsCounter, 972 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2534 mSolverCounterSat, 775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 3309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 775 IncrementalHoareTripleChecker+Valid, 2534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2024-11-19 18:13:11,880 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 850 Invalid, 3309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [775 Valid, 2534 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2024-11-19 18:13:11,888 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6708 states.
[2024-11-19 18:13:11,988 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6708 to 6700.
[2024-11-19 18:13:12,000 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6700 states, 6699 states have (on average 1.413046723391551) internal successors, (9466), 6699 states have internal predecessors, (9466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:12,012 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6700 states to 6700 states and 9466 transitions.
[2024-11-19 18:13:12,013 INFO  L78                 Accepts]: Start accepts. Automaton has 6700 states and 9466 transitions. Word has length 116
[2024-11-19 18:13:12,014 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:13:12,014 INFO  L471      AbstractCegarLoop]: Abstraction has 6700 states and 9466 transitions.
[2024-11-19 18:13:12,014 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)
[2024-11-19 18:13:12,016 INFO  L276                IsEmpty]: Start isEmpty. Operand 6700 states and 9466 transitions.
[2024-11-19 18:13:12,021 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2024-11-19 18:13:12,022 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:13:12,022 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:13:12,022 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-19 18:13:12,022 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:13:12,023 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:13:12,023 INFO  L85        PathProgramCache]: Analyzing trace with hash 1036466844, now seen corresponding path program 1 times
[2024-11-19 18:13:12,023 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:13:12,023 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517529457]
[2024-11-19 18:13:12,023 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:13:12,023 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:13:12,067 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:13:12,335 INFO  L134       CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:13:12,335 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:13:12,335 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517529457]
[2024-11-19 18:13:12,336 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517529457] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:13:12,336 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:13:12,336 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:13:12,336 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437416442]
[2024-11-19 18:13:12,336 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:13:12,337 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:13:12,337 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:13:12,338 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:13:12,338 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:12,338 INFO  L87              Difference]: Start difference. First operand 6700 states and 9466 transitions. Second operand  has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:15,532 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:13:15,532 INFO  L93              Difference]: Finished difference Result 17443 states and 24479 transitions.
[2024-11-19 18:13:15,533 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:13:15,533 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 0 states have call successors, (0), 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 146
[2024-11-19 18:13:15,533 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:13:15,569 INFO  L225             Difference]: With dead ends: 17443
[2024-11-19 18:13:15,569 INFO  L226             Difference]: Without dead ends: 10745
[2024-11-19 18:13:15,582 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:15,584 INFO  L432           NwaCegarLoop]: 834 mSDtfsCounter, 844 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 3291 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 3741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 3291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time
[2024-11-19 18:13:15,585 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 965 Invalid, 3741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 3291 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time]
[2024-11-19 18:13:15,601 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10745 states.
[2024-11-19 18:13:15,750 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10745 to 10669.
[2024-11-19 18:13:15,766 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10669 states, 10668 states have (on average 1.3562992125984252) internal successors, (14469), 10668 states have internal predecessors, (14469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:15,784 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10669 states to 10669 states and 14469 transitions.
[2024-11-19 18:13:15,788 INFO  L78                 Accepts]: Start accepts. Automaton has 10669 states and 14469 transitions. Word has length 146
[2024-11-19 18:13:15,789 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:13:15,789 INFO  L471      AbstractCegarLoop]: Abstraction has 10669 states and 14469 transitions.
[2024-11-19 18:13:15,789 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:15,789 INFO  L276                IsEmpty]: Start isEmpty. Operand 10669 states and 14469 transitions.
[2024-11-19 18:13:15,791 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2024-11-19 18:13:15,791 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:13:15,791 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:13:15,792 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-19 18:13:15,795 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:13:15,796 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:13:15,796 INFO  L85        PathProgramCache]: Analyzing trace with hash 1555116277, now seen corresponding path program 1 times
[2024-11-19 18:13:15,796 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:13:15,796 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544652446]
[2024-11-19 18:13:15,796 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:13:15,796 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:13:15,850 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:13:16,347 INFO  L134       CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:13:16,348 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:13:16,348 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544652446]
[2024-11-19 18:13:16,349 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544652446] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:13:16,349 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:13:16,349 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:13:16,350 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170631958]
[2024-11-19 18:13:16,350 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:13:16,351 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:13:16,351 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:13:16,351 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:13:16,351 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:16,352 INFO  L87              Difference]: Start difference. First operand 10669 states and 14469 transitions. Second operand  has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:19,138 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:13:19,138 INFO  L93              Difference]: Finished difference Result 20549 states and 28119 transitions.
[2024-11-19 18:13:19,138 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:13:19,139 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 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 156
[2024-11-19 18:13:19,139 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:13:19,170 INFO  L225             Difference]: With dead ends: 20549
[2024-11-19 18:13:19,171 INFO  L226             Difference]: Without dead ends: 10669
[2024-11-19 18:13:19,184 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:19,185 INFO  L432           NwaCegarLoop]: 1083 mSDtfsCounter, 678 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 2544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-19 18:13:19,186 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1212 Invalid, 2544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-19 18:13:19,197 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10669 states.
[2024-11-19 18:13:19,355 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10669 to 10669.
[2024-11-19 18:13:19,374 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10669 states, 10668 states have (on average 1.3539557555305586) internal successors, (14444), 10668 states have internal predecessors, (14444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:19,393 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10669 states to 10669 states and 14444 transitions.
[2024-11-19 18:13:19,393 INFO  L78                 Accepts]: Start accepts. Automaton has 10669 states and 14444 transitions. Word has length 156
[2024-11-19 18:13:19,394 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:13:19,394 INFO  L471      AbstractCegarLoop]: Abstraction has 10669 states and 14444 transitions.
[2024-11-19 18:13:19,394 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:19,394 INFO  L276                IsEmpty]: Start isEmpty. Operand 10669 states and 14444 transitions.
[2024-11-19 18:13:19,395 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 171
[2024-11-19 18:13:19,396 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:13:19,396 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:13:19,396 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-19 18:13:19,397 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:13:19,397 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:13:19,397 INFO  L85        PathProgramCache]: Analyzing trace with hash -1267295969, now seen corresponding path program 1 times
[2024-11-19 18:13:19,398 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:13:19,398 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262390542]
[2024-11-19 18:13:19,398 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:13:19,398 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:13:19,432 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:13:19,531 INFO  L134       CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:13:19,531 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:13:19,531 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262390542]
[2024-11-19 18:13:19,532 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262390542] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:13:19,532 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:13:19,532 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:13:19,533 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890424621]
[2024-11-19 18:13:19,533 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:13:19,533 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:13:19,534 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:13:19,534 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:13:19,535 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:19,539 INFO  L87              Difference]: Start difference. First operand 10669 states and 14444 transitions. Second operand  has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:22,819 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:13:22,819 INFO  L93              Difference]: Finished difference Result 29991 states and 41155 transitions.
[2024-11-19 18:13:22,819 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:13:22,820 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 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 170
[2024-11-19 18:13:22,820 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:13:22,856 INFO  L225             Difference]: With dead ends: 29991
[2024-11-19 18:13:22,857 INFO  L226             Difference]: Without dead ends: 20111
[2024-11-19 18:13:22,871 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:22,871 INFO  L432           NwaCegarLoop]: 1849 mSDtfsCounter, 892 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 2479 mSolverCounterSat, 806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 1988 SdHoareTripleChecker+Invalid, 3285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 2479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time
[2024-11-19 18:13:22,872 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 1988 Invalid, 3285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [806 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time]
[2024-11-19 18:13:22,889 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20111 states.
[2024-11-19 18:13:23,072 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20111 to 19314.
[2024-11-19 18:13:23,096 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19314 states, 19313 states have (on average 1.2808470978097655) internal successors, (24737), 19313 states have internal predecessors, (24737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:23,120 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19314 states to 19314 states and 24737 transitions.
[2024-11-19 18:13:23,123 INFO  L78                 Accepts]: Start accepts. Automaton has 19314 states and 24737 transitions. Word has length 170
[2024-11-19 18:13:23,124 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:13:23,124 INFO  L471      AbstractCegarLoop]: Abstraction has 19314 states and 24737 transitions.
[2024-11-19 18:13:23,124 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:23,124 INFO  L276                IsEmpty]: Start isEmpty. Operand 19314 states and 24737 transitions.
[2024-11-19 18:13:23,129 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 258
[2024-11-19 18:13:23,129 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:13:23,130 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:13:23,130 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-19 18:13:23,130 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:13:23,130 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:13:23,131 INFO  L85        PathProgramCache]: Analyzing trace with hash 1650019074, now seen corresponding path program 1 times
[2024-11-19 18:13:23,131 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:13:23,131 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515492525]
[2024-11-19 18:13:23,131 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:13:23,132 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:13:23,189 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:13:23,510 INFO  L134       CoverageAnalysis]: Checked inductivity of 180 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked.
[2024-11-19 18:13:23,511 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:13:23,511 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515492525]
[2024-11-19 18:13:23,512 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515492525] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:13:23,512 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:13:23,512 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:13:23,512 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93277625]
[2024-11-19 18:13:23,512 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:13:23,513 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:13:23,513 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:13:23,513 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:13:23,513 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:23,514 INFO  L87              Difference]: Start difference. First operand 19314 states and 24737 transitions. Second operand  has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:26,387 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:13:26,387 INFO  L93              Difference]: Finished difference Result 44942 states and 56955 transitions.
[2024-11-19 18:13:26,388 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:13:26,388 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 257
[2024-11-19 18:13:26,388 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:13:26,428 INFO  L225             Difference]: With dead ends: 44942
[2024-11-19 18:13:26,429 INFO  L226             Difference]: Without dead ends: 25630
[2024-11-19 18:13:26,451 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:26,454 INFO  L432           NwaCegarLoop]: 1012 mSDtfsCounter, 726 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 2700 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 2881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 2700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-19 18:13:26,455 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 1191 Invalid, 2881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 2700 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-19 18:13:26,478 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25630 states.
[2024-11-19 18:13:26,704 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25630 to 25622.
[2024-11-19 18:13:26,730 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 25622 states, 25621 states have (on average 1.2324655555989228) internal successors, (31577), 25621 states have internal predecessors, (31577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:26,764 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25622 states to 25622 states and 31577 transitions.
[2024-11-19 18:13:26,764 INFO  L78                 Accepts]: Start accepts. Automaton has 25622 states and 31577 transitions. Word has length 257
[2024-11-19 18:13:26,765 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:13:26,765 INFO  L471      AbstractCegarLoop]: Abstraction has 25622 states and 31577 transitions.
[2024-11-19 18:13:26,765 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:26,765 INFO  L276                IsEmpty]: Start isEmpty. Operand 25622 states and 31577 transitions.
[2024-11-19 18:13:26,769 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 273
[2024-11-19 18:13:26,769 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:13:26,769 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-19 18:13:26,769 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-19 18:13:26,769 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:13:26,770 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:13:26,770 INFO  L85        PathProgramCache]: Analyzing trace with hash -1608424042, now seen corresponding path program 1 times
[2024-11-19 18:13:26,770 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:13:26,770 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301891276]
[2024-11-19 18:13:26,770 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:13:26,771 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:13:26,814 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:13:26,971 INFO  L134       CoverageAnalysis]: Checked inductivity of 180 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:13:26,972 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:13:26,972 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301891276]
[2024-11-19 18:13:26,972 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301891276] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:13:26,972 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:13:26,972 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:13:26,972 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740222690]
[2024-11-19 18:13:26,973 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:13:26,973 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:13:26,973 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:13:26,974 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:13:26,974 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:26,974 INFO  L87              Difference]: Start difference. First operand 25622 states and 31577 transitions. Second operand  has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:30,212 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:13:30,212 INFO  L93              Difference]: Finished difference Result 72509 states and 89961 transitions.
[2024-11-19 18:13:30,212 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:13:30,213 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 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 272
[2024-11-19 18:13:30,213 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:13:30,274 INFO  L225             Difference]: With dead ends: 72509
[2024-11-19 18:13:30,274 INFO  L226             Difference]: Without dead ends: 47676
[2024-11-19 18:13:30,301 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:30,302 INFO  L432           NwaCegarLoop]: 782 mSDtfsCounter, 825 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 2378 mSolverCounterSat, 916 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 3294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 916 IncrementalHoareTripleChecker+Valid, 2378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2024-11-19 18:13:30,303 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 900 Invalid, 3294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [916 Valid, 2378 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2024-11-19 18:13:30,341 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 47676 states.
[2024-11-19 18:13:30,700 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 47676 to 46091.
[2024-11-19 18:13:30,736 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 46091 states, 46090 states have (on average 1.1848557170752876) internal successors, (54610), 46090 states have internal predecessors, (54610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:30,797 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 46091 states to 46091 states and 54610 transitions.
[2024-11-19 18:13:30,799 INFO  L78                 Accepts]: Start accepts. Automaton has 46091 states and 54610 transitions. Word has length 272
[2024-11-19 18:13:30,799 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:13:30,800 INFO  L471      AbstractCegarLoop]: Abstraction has 46091 states and 54610 transitions.
[2024-11-19 18:13:30,800 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:30,800 INFO  L276                IsEmpty]: Start isEmpty. Operand 46091 states and 54610 transitions.
[2024-11-19 18:13:30,810 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 352
[2024-11-19 18:13:30,810 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:13:30,811 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:13:30,811 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-19 18:13:30,811 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:13:30,812 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:13:30,812 INFO  L85        PathProgramCache]: Analyzing trace with hash 1505061361, now seen corresponding path program 1 times
[2024-11-19 18:13:30,812 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:13:30,812 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785204950]
[2024-11-19 18:13:30,812 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:13:30,813 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:13:30,865 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:13:32,155 INFO  L134       CoverageAnalysis]: Checked inductivity of 370 backedges. 217 proven. 110 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked.
[2024-11-19 18:13:32,156 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:13:32,156 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785204950]
[2024-11-19 18:13:32,156 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785204950] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-19 18:13:32,156 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281657721]
[2024-11-19 18:13:32,157 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:13:32,157 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:13:32,157 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 18:13:32,160 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-19 18:13:32,162 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-19 18:13:32,303 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:13:32,306 INFO  L255         TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-19 18:13:32,320 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-19 18:13:32,456 INFO  L134       CoverageAnalysis]: Checked inductivity of 370 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked.
[2024-11-19 18:13:32,456 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-19 18:13:32,456 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281657721] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:13:32,456 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-19 18:13:32,456 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7
[2024-11-19 18:13:32,457 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9520360]
[2024-11-19 18:13:32,457 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:13:32,457 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:13:32,457 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:13:32,458 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:13:32,458 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-19 18:13:32,458 INFO  L87              Difference]: Start difference. First operand 46091 states and 54610 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)
[2024-11-19 18:13:35,293 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:13:35,294 INFO  L93              Difference]: Finished difference Result 91382 states and 108416 transitions.
[2024-11-19 18:13:35,294 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:13:35,295 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 351
[2024-11-19 18:13:35,295 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:13:35,364 INFO  L225             Difference]: With dead ends: 91382
[2024-11-19 18:13:35,364 INFO  L226             Difference]: Without dead ends: 46080
[2024-11-19 18:13:35,398 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-19 18:13:35,400 INFO  L432           NwaCegarLoop]: 690 mSDtfsCounter, 1077 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 2394 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 2921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 2394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2024-11-19 18:13:35,400 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 822 Invalid, 2921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 2394 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2024-11-19 18:13:35,437 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46080 states.
[2024-11-19 18:13:35,792 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46080 to 46077.
[2024-11-19 18:13:35,823 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 46077 states, 46076 states have (on average 1.1360578175188818) internal successors, (52345), 46076 states have internal predecessors, (52345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:35,867 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 46077 states to 46077 states and 52345 transitions.
[2024-11-19 18:13:35,867 INFO  L78                 Accepts]: Start accepts. Automaton has 46077 states and 52345 transitions. Word has length 351
[2024-11-19 18:13:35,868 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:13:35,868 INFO  L471      AbstractCegarLoop]: Abstraction has 46077 states and 52345 transitions.
[2024-11-19 18:13:35,868 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)
[2024-11-19 18:13:35,868 INFO  L276                IsEmpty]: Start isEmpty. Operand 46077 states and 52345 transitions.
[2024-11-19 18:13:35,875 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 361
[2024-11-19 18:13:35,875 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:13:35,876 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:13:35,888 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-19 18:13:36,076 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
[2024-11-19 18:13:36,077 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:13:36,077 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:13:36,078 INFO  L85        PathProgramCache]: Analyzing trace with hash -625904064, now seen corresponding path program 1 times
[2024-11-19 18:13:36,078 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:13:36,078 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510622871]
[2024-11-19 18:13:36,078 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:13:36,078 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:13:36,141 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:13:36,349 INFO  L134       CoverageAnalysis]: Checked inductivity of 209 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked.
[2024-11-19 18:13:36,350 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:13:36,350 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510622871]
[2024-11-19 18:13:36,350 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510622871] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:13:36,350 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:13:36,350 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:13:36,350 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911930132]
[2024-11-19 18:13:36,350 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:13:36,351 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:13:36,351 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:13:36,351 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:13:36,352 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:36,352 INFO  L87              Difference]: Start difference. First operand 46077 states and 52345 transitions. Second operand  has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:39,427 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:13:39,428 INFO  L93              Difference]: Finished difference Result 101586 states and 116820 transitions.
[2024-11-19 18:13:39,428 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:13:39,428 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 360
[2024-11-19 18:13:39,429 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:13:39,486 INFO  L225             Difference]: With dead ends: 101586
[2024-11-19 18:13:39,486 INFO  L226             Difference]: Without dead ends: 56298
[2024-11-19 18:13:39,509 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:39,510 INFO  L432           NwaCegarLoop]: 1440 mSDtfsCounter, 1110 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 767 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 3160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 767 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2024-11-19 18:13:39,510 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 1525 Invalid, 3160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [767 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2024-11-19 18:13:39,552 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 56298 states.
[2024-11-19 18:13:39,929 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 56298 to 56297.
[2024-11-19 18:13:39,967 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 56297 states, 56296 states have (on average 1.1241651271848798) internal successors, (63286), 56296 states have internal predecessors, (63286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:40,023 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 56297 states to 56297 states and 63286 transitions.
[2024-11-19 18:13:40,023 INFO  L78                 Accepts]: Start accepts. Automaton has 56297 states and 63286 transitions. Word has length 360
[2024-11-19 18:13:40,024 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:13:40,024 INFO  L471      AbstractCegarLoop]: Abstraction has 56297 states and 63286 transitions.
[2024-11-19 18:13:40,024 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:40,024 INFO  L276                IsEmpty]: Start isEmpty. Operand 56297 states and 63286 transitions.
[2024-11-19 18:13:40,033 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 394
[2024-11-19 18:13:40,033 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:13:40,034 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, 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, 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]
[2024-11-19 18:13:40,034 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-19 18:13:40,034 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:13:40,034 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:13:40,034 INFO  L85        PathProgramCache]: Analyzing trace with hash 271548370, now seen corresponding path program 1 times
[2024-11-19 18:13:40,034 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:13:40,035 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004131795]
[2024-11-19 18:13:40,035 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:13:40,035 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:13:40,084 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:13:40,585 INFO  L134       CoverageAnalysis]: Checked inductivity of 627 backedges. 476 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked.
[2024-11-19 18:13:40,585 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:13:40,585 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004131795]
[2024-11-19 18:13:40,585 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004131795] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:13:40,586 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:13:40,586 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:13:40,586 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293646962]
[2024-11-19 18:13:40,586 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:13:40,586 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-19 18:13:40,587 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:13:40,587 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-19 18:13:40,587 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 18:13:40,587 INFO  L87              Difference]: Start difference. First operand 56297 states and 63286 transitions. Second operand  has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:46,374 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:13:46,374 INFO  L93              Difference]: Finished difference Result 141882 states and 159543 transitions.
[2024-11-19 18:13:46,375 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 18:13:46,375 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 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 393
[2024-11-19 18:13:46,375 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:13:46,459 INFO  L225             Difference]: With dead ends: 141882
[2024-11-19 18:13:46,459 INFO  L226             Difference]: Without dead ends: 86374
[2024-11-19 18:13:46,615 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 18:13:46,617 INFO  L432           NwaCegarLoop]: 680 mSDtfsCounter, 1687 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 5942 mSolverCounterSat, 985 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1687 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 6927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 985 IncrementalHoareTripleChecker+Valid, 5942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time
[2024-11-19 18:13:46,617 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1687 Valid, 864 Invalid, 6927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [985 Valid, 5942 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time]
[2024-11-19 18:13:46,684 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 86374 states.
[2024-11-19 18:13:47,218 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 86374 to 68114.
[2024-11-19 18:13:47,262 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 68114 states, 68113 states have (on average 1.1126069913232424) internal successors, (75783), 68113 states have internal predecessors, (75783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:47,324 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 68114 states to 68114 states and 75783 transitions.
[2024-11-19 18:13:47,325 INFO  L78                 Accepts]: Start accepts. Automaton has 68114 states and 75783 transitions. Word has length 393
[2024-11-19 18:13:47,325 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:13:47,325 INFO  L471      AbstractCegarLoop]: Abstraction has 68114 states and 75783 transitions.
[2024-11-19 18:13:47,325 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:47,325 INFO  L276                IsEmpty]: Start isEmpty. Operand 68114 states and 75783 transitions.
[2024-11-19 18:13:47,332 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 407
[2024-11-19 18:13:47,332 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:13:47,333 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:13:47,333 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-19 18:13:47,333 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:13:47,333 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:13:47,334 INFO  L85        PathProgramCache]: Analyzing trace with hash 1710275287, now seen corresponding path program 1 times
[2024-11-19 18:13:47,334 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:13:47,334 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034003137]
[2024-11-19 18:13:47,334 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:13:47,334 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:13:47,409 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:13:47,818 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked.
[2024-11-19 18:13:47,819 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:13:47,819 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034003137]
[2024-11-19 18:13:47,819 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034003137] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:13:47,819 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:13:47,819 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:13:47,820 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514086379]
[2024-11-19 18:13:47,820 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:13:47,820 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:13:47,821 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:13:47,821 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:13:47,821 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:47,821 INFO  L87              Difference]: Start difference. First operand 68114 states and 75783 transitions. Second operand  has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:51,190 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:13:51,190 INFO  L93              Difference]: Finished difference Result 159833 states and 178094 transitions.
[2024-11-19 18:13:51,191 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:13:51,191 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 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 406
[2024-11-19 18:13:51,191 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:13:51,281 INFO  L225             Difference]: With dead ends: 159833
[2024-11-19 18:13:51,281 INFO  L226             Difference]: Without dead ends: 92508
[2024-11-19 18:13:51,313 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:51,314 INFO  L432           NwaCegarLoop]: 702 mSDtfsCounter, 831 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 2395 mSolverCounterSat, 936 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 3331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 936 IncrementalHoareTripleChecker+Valid, 2395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2024-11-19 18:13:51,314 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 783 Invalid, 3331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [936 Valid, 2395 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2024-11-19 18:13:51,368 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 92508 states.
[2024-11-19 18:13:52,131 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 92508 to 90920.
[2024-11-19 18:13:52,183 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 90920 states, 90919 states have (on average 1.0987142401478238) internal successors, (99894), 90919 states have internal predecessors, (99894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:52,270 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 90920 states to 90920 states and 99894 transitions.
[2024-11-19 18:13:52,270 INFO  L78                 Accepts]: Start accepts. Automaton has 90920 states and 99894 transitions. Word has length 406
[2024-11-19 18:13:52,271 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:13:52,271 INFO  L471      AbstractCegarLoop]: Abstraction has 90920 states and 99894 transitions.
[2024-11-19 18:13:52,271 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:52,271 INFO  L276                IsEmpty]: Start isEmpty. Operand 90920 states and 99894 transitions.
[2024-11-19 18:13:52,278 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 427
[2024-11-19 18:13:52,278 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:13:52,278 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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]
[2024-11-19 18:13:52,279 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-19 18:13:52,279 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:13:52,279 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:13:52,279 INFO  L85        PathProgramCache]: Analyzing trace with hash -408391344, now seen corresponding path program 1 times
[2024-11-19 18:13:52,279 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:13:52,279 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317978239]
[2024-11-19 18:13:52,280 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:13:52,280 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:13:52,588 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:13:53,329 INFO  L134       CoverageAnalysis]: Checked inductivity of 637 backedges. 365 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked.
[2024-11-19 18:13:53,329 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:13:53,329 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317978239]
[2024-11-19 18:13:53,329 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317978239] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:13:53,330 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:13:53,330 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:13:53,330 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453590122]
[2024-11-19 18:13:53,330 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:13:53,331 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:13:53,331 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:13:53,331 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:13:53,332 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:53,332 INFO  L87              Difference]: Start difference. First operand 90920 states and 99894 transitions. Second operand  has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:56,353 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:13:56,354 INFO  L93              Difference]: Finished difference Result 204687 states and 224264 transitions.
[2024-11-19 18:13:56,354 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:13:56,354 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 426
[2024-11-19 18:13:56,355 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:13:56,503 INFO  L225             Difference]: With dead ends: 204687
[2024-11-19 18:13:56,503 INFO  L226             Difference]: Without dead ends: 114556
[2024-11-19 18:13:56,540 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:13:56,540 INFO  L432           NwaCegarLoop]: 976 mSDtfsCounter, 796 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 2836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2024-11-19 18:13:56,540 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 1116 Invalid, 2836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2024-11-19 18:13:56,786 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 114556 states.
[2024-11-19 18:13:57,885 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 114556 to 110599.
[2024-11-19 18:13:57,949 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 110599 states, 110598 states have (on average 1.088509737969945) internal successors, (120387), 110598 states have internal predecessors, (120387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:58,071 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 110599 states to 110599 states and 120387 transitions.
[2024-11-19 18:13:58,072 INFO  L78                 Accepts]: Start accepts. Automaton has 110599 states and 120387 transitions. Word has length 426
[2024-11-19 18:13:58,072 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:13:58,072 INFO  L471      AbstractCegarLoop]: Abstraction has 110599 states and 120387 transitions.
[2024-11-19 18:13:58,073 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:13:58,073 INFO  L276                IsEmpty]: Start isEmpty. Operand 110599 states and 120387 transitions.
[2024-11-19 18:13:58,078 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 437
[2024-11-19 18:13:58,079 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:13:58,079 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:13:58,079 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-19 18:13:58,079 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:13:58,079 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:13:58,080 INFO  L85        PathProgramCache]: Analyzing trace with hash 1634378536, now seen corresponding path program 1 times
[2024-11-19 18:13:58,080 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:13:58,080 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863212857]
[2024-11-19 18:13:58,080 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:13:58,080 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:13:58,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:13:59,688 INFO  L134       CoverageAnalysis]: Checked inductivity of 647 backedges. 383 proven. 113 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked.
[2024-11-19 18:13:59,688 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:13:59,689 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863212857]
[2024-11-19 18:13:59,689 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863212857] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-19 18:13:59,689 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286550556]
[2024-11-19 18:13:59,689 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:13:59,689 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:13:59,689 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 18:13:59,690 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-19 18:13:59,691 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-19 18:13:59,867 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:13:59,870 INFO  L255         TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-19 18:13:59,879 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-19 18:14:00,646 INFO  L134       CoverageAnalysis]: Checked inductivity of 647 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2024-11-19 18:14:00,646 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-19 18:14:00,647 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [286550556] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:14:00,647 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-19 18:14:00,647 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8
[2024-11-19 18:14:00,647 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209702571]
[2024-11-19 18:14:00,647 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:14:00,648 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:14:00,648 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:14:00,652 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:14:00,652 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2024-11-19 18:14:00,653 INFO  L87              Difference]: Start difference. First operand 110599 states and 120387 transitions. Second operand  has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:14:03,498 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:14:03,498 INFO  L93              Difference]: Finished difference Result 210184 states and 229315 transitions.
[2024-11-19 18:14:03,499 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:14:03,499 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 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 436
[2024-11-19 18:14:03,499 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:14:03,614 INFO  L225             Difference]: With dead ends: 210184
[2024-11-19 18:14:03,614 INFO  L226             Difference]: Without dead ends: 113757
[2024-11-19 18:14:03,666 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2024-11-19 18:14:03,666 INFO  L432           NwaCegarLoop]: 1017 mSDtfsCounter, 682 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2450 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 2559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2024-11-19 18:14:03,667 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 1150 Invalid, 2559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 2450 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2024-11-19 18:14:03,734 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 113757 states.