./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.1.prop2-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version a046e57d
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/hardware-verification-bv/btor2c-lazyMod.gear.1.prop2-func-interl.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 78f9adec3cf80ec19560c79bec41983db88124703561b355427e6b8d400f0d6a
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m
[2024-10-12 22:50:25,393 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-10-12 22:50:25,450 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-10-12 22:50:25,454 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-10-12 22:50:25,455 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-12 22:50:25,479 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-12 22:50:25,480 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-12 22:50:25,480 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-12 22:50:25,481 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-12 22:50:25,481 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-10-12 22:50:25,482 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-12 22:50:25,483 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-12 22:50:25,483 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-12 22:50:25,484 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-10-12 22:50:25,485 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-10-12 22:50:25,485 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-12 22:50:25,485 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-10-12 22:50:25,485 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-10-12 22:50:25,486 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-10-12 22:50:25,486 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-10-12 22:50:25,486 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-12 22:50:25,488 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-10-12 22:50:25,489 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-10-12 22:50:25,489 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-10-12 22:50:25,489 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-10-12 22:50:25,489 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-12 22:50:25,489 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-10-12 22:50:25,490 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-10-12 22:50:25,490 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-10-12 22:50:25,490 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-12 22:50:25,490 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-12 22:50:25,490 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-10-12 22:50:25,491 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-12 22:50:25,491 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-10-12 22:50:25,491 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-10-12 22:50:25,491 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-12 22:50:25,491 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-12 22:50:25,491 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-10-12 22:50:25,492 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-12 22:50:25,492 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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78f9adec3cf80ec19560c79bec41983db88124703561b355427e6b8d400f0d6a
[2024-10-12 22:50:25,738 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-12 22:50:25,755 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-12 22:50:25,756 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-12 22:50:25,757 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-10-12 22:50:25,757 INFO  L274        PluginConnector]: CDTParser initialized
[2024-10-12 22:50:25,758 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.1.prop2-func-interl.c
[2024-10-12 22:50:27,139 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-10-12 22:50:27,522 INFO  L384              CDTParser]: Found 1 translation units.
[2024-10-12 22:50:27,522 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.1.prop2-func-interl.c
[2024-10-12 22:50:27,578 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43c5f477f/b75728f0534f4fb0a7849f0b5509fcfb/FLAGa2a171fe4
[2024-10-12 22:50:27,595 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43c5f477f/b75728f0534f4fb0a7849f0b5509fcfb
[2024-10-12 22:50:27,598 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-12 22:50:27,600 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-12 22:50:27,602 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-12 22:50:27,603 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-12 22:50:27,608 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-12 22:50:27,609 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:50:27" (1/1) ...
[2024-10-12 22:50:27,610 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e9d6c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:50:27, skipping insertion in model container
[2024-10-12 22:50:27,610 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:50:27" (1/1) ...
[2024-10-12 22:50:27,691 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-10-12 22:50:27,865 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.1.prop2-func-interl.c[1171,1184]
[2024-10-12 22:50:28,220 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-12 22:50:28,227 INFO  L200         MainTranslator]: Completed pre-run
[2024-10-12 22:50:28,236 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.1.prop2-func-interl.c[1171,1184]
[2024-10-12 22:50:28,492 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-12 22:50:28,504 INFO  L204         MainTranslator]: Completed translation
[2024-10-12 22:50:28,505 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:50:28 WrapperNode
[2024-10-12 22:50:28,505 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-12 22:50:28,506 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-12 22:50:28,506 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-12 22:50:28,506 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-12 22:50:28,511 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:50:28" (1/1) ...
[2024-10-12 22:50:28,625 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:50:28" (1/1) ...
[2024-10-12 22:50:29,795 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 12370
[2024-10-12 22:50:29,796 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-12 22:50:29,796 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-12 22:50:29,796 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-12 22:50:29,796 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-10-12 22:50:29,804 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:50:28" (1/1) ...
[2024-10-12 22:50:29,804 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:50:28" (1/1) ...
[2024-10-12 22:50:30,208 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:50:28" (1/1) ...
[2024-10-12 22:50:30,551 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].
[2024-10-12 22:50:30,551 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:50:28" (1/1) ...
[2024-10-12 22:50:30,552 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:50:28" (1/1) ...
[2024-10-12 22:50:31,173 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:50:28" (1/1) ...
[2024-10-12 22:50:31,245 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:50:28" (1/1) ...
[2024-10-12 22:50:31,316 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:50:28" (1/1) ...
[2024-10-12 22:50:31,366 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:50:28" (1/1) ...
[2024-10-12 22:50:31,729 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-12 22:50:31,734 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-12 22:50:31,734 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-10-12 22:50:31,734 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-10-12 22:50:31,735 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:50:28" (1/1) ...
[2024-10-12 22:50:31,741 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-12 22:50:31,751 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-12 22:50:31,766 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)
[2024-10-12 22:50:31,769 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
[2024-10-12 22:50:31,802 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-12 22:50:31,802 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-10-12 22:50:31,803 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-12 22:50:31,803 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-12 22:50:32,257 INFO  L238             CfgBuilder]: Building ICFG
[2024-10-12 22:50:32,258 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-12 22:50:49,171 INFO  L?                        ?]: Removed 7031 outVars from TransFormulas that were not future-live.
[2024-10-12 22:50:49,171 INFO  L287             CfgBuilder]: Performing block encoding
[2024-10-12 22:50:49,321 INFO  L309             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-12 22:50:49,322 INFO  L314             CfgBuilder]: Removed 1 assume(true) statements.
[2024-10-12 22:50:49,322 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:50:49 BoogieIcfgContainer
[2024-10-12 22:50:49,323 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-12 22:50:49,325 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-12 22:50:49,325 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-10-12 22:50:49,328 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-10-12 22:50:49,328 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:50:27" (1/3) ...
[2024-10-12 22:50:49,328 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5260cfa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:50:49, skipping insertion in model container
[2024-10-12 22:50:49,329 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:50:28" (2/3) ...
[2024-10-12 22:50:49,329 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5260cfa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:50:49, skipping insertion in model container
[2024-10-12 22:50:49,329 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:50:49" (3/3) ...
[2024-10-12 22:50:49,331 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.gear.1.prop2-func-interl.c
[2024-10-12 22:50:49,345 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-12 22:50:49,346 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-10-12 22:50:49,472 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-12 22:50:49,479 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;@3ce52dce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-12 22:50:49,480 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-12 22:50:49,496 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 4365 states, 4363 states have (on average 1.5012606005042402) internal successors, (6550), 4364 states have internal predecessors, (6550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:50:49,513 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 213
[2024-10-12 22:50:49,514 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:50:49,515 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 22:50:49,515 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:50:49,519 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:50:49,520 INFO  L85        PathProgramCache]: Analyzing trace with hash 955357601, now seen corresponding path program 1 times
[2024-10-12 22:50:49,527 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:50:49,528 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183730400]
[2024-10-12 22:50:49,528 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:50:49,528 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:50:49,818 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:50:50,418 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:50:50,420 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:50:50,421 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183730400]
[2024-10-12 22:50:50,422 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183730400] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:50:50,422 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:50:50,422 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-12 22:50:50,423 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109325313]
[2024-10-12 22:50:50,424 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:50:50,427 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:50:50,428 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:50:50,450 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:50:50,451 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:50:50,462 INFO  L87              Difference]: Start difference. First operand  has 4365 states, 4363 states have (on average 1.5012606005042402) internal successors, (6550), 4364 states have internal predecessors, (6550), 0 states have call successors, (0), 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 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:50:50,658 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:50:50,658 INFO  L93              Difference]: Finished difference Result 8498 states and 12754 transitions.
[2024-10-12 22:50:50,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:50:50,660 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 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 212
[2024-10-12 22:50:50,661 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:50:50,687 INFO  L225             Difference]: With dead ends: 8498
[2024-10-12 22:50:50,687 INFO  L226             Difference]: Without dead ends: 4366
[2024-10-12 22:50:50,699 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:50:50,704 INFO  L432           NwaCegarLoop]: 6545 mSDtfsCounter, 0 mSDsluCounter, 13085 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19630 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-12 22:50:50,705 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19630 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-12 22:50:50,726 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4366 states.
[2024-10-12 22:50:50,833 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4366 to 4366.
[2024-10-12 22:50:50,840 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4366 states, 4365 states have (on average 1.5005727376861397) internal successors, (6550), 4365 states have internal predecessors, (6550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:50:50,850 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4366 states to 4366 states and 6550 transitions.
[2024-10-12 22:50:50,852 INFO  L78                 Accepts]: Start accepts. Automaton has 4366 states and 6550 transitions. Word has length 212
[2024-10-12 22:50:50,854 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:50:50,855 INFO  L471      AbstractCegarLoop]: Abstraction has 4366 states and 6550 transitions.
[2024-10-12 22:50:50,855 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:50:50,856 INFO  L276                IsEmpty]: Start isEmpty. Operand 4366 states and 6550 transitions.
[2024-10-12 22:50:50,858 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 214
[2024-10-12 22:50:50,862 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:50:50,862 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 22:50:50,862 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-10-12 22:50:50,862 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:50:50,863 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:50:50,863 INFO  L85        PathProgramCache]: Analyzing trace with hash -446988936, now seen corresponding path program 1 times
[2024-10-12 22:50:50,863 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:50:50,863 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914038209]
[2024-10-12 22:50:50,863 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:50:50,863 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:50:50,972 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:50:51,501 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:50:51,504 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:50:51,504 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914038209]
[2024-10-12 22:50:51,504 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914038209] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:50:51,504 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:50:51,504 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-12 22:50:51,504 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973924448]
[2024-10-12 22:50:51,504 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:50:51,505 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:50:51,505 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:50:51,507 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:50:51,507 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:50:51,507 INFO  L87              Difference]: Start difference. First operand 4366 states and 6550 transitions. Second operand  has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:50:51,623 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:50:51,624 INFO  L93              Difference]: Finished difference Result 8501 states and 12754 transitions.
[2024-10-12 22:50:51,624 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:50:51,624 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 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 213
[2024-10-12 22:50:51,625 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:50:51,636 INFO  L225             Difference]: With dead ends: 8501
[2024-10-12 22:50:51,637 INFO  L226             Difference]: Without dead ends: 4368
[2024-10-12 22:50:51,643 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:50:51,644 INFO  L432           NwaCegarLoop]: 6545 mSDtfsCounter, 0 mSDsluCounter, 13082 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19627 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-12 22:50:51,645 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19627 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-12 22:50:51,651 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4368 states.
[2024-10-12 22:50:51,693 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4368 to 4368.
[2024-10-12 22:50:51,699 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4368 states, 4367 states have (on average 1.5003434852301352) internal successors, (6552), 4367 states have internal predecessors, (6552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:50:51,706 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4368 states to 4368 states and 6552 transitions.
[2024-10-12 22:50:51,706 INFO  L78                 Accepts]: Start accepts. Automaton has 4368 states and 6552 transitions. Word has length 213
[2024-10-12 22:50:51,707 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:50:51,707 INFO  L471      AbstractCegarLoop]: Abstraction has 4368 states and 6552 transitions.
[2024-10-12 22:50:51,707 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:50:51,707 INFO  L276                IsEmpty]: Start isEmpty. Operand 4368 states and 6552 transitions.
[2024-10-12 22:50:51,710 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 215
[2024-10-12 22:50:51,710 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:50:51,710 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 22:50:51,711 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-10-12 22:50:51,711 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:50:51,711 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:50:51,711 INFO  L85        PathProgramCache]: Analyzing trace with hash -2069719718, now seen corresponding path program 1 times
[2024-10-12 22:50:51,711 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:50:51,711 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829445442]
[2024-10-12 22:50:51,711 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:50:51,712 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:50:51,794 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:50:51,997 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:50:51,998 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:50:51,998 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829445442]
[2024-10-12 22:50:51,999 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829445442] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:50:51,999 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:50:51,999 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-12 22:50:51,999 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794635324]
[2024-10-12 22:50:51,999 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:50:52,000 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:50:52,000 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:50:52,001 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:50:52,001 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:50:52,002 INFO  L87              Difference]: Start difference. First operand 4368 states and 6552 transitions. Second operand  has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:50:52,103 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:50:52,103 INFO  L93              Difference]: Finished difference Result 8505 states and 12758 transitions.
[2024-10-12 22:50:52,104 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:50:52,104 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 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 214
[2024-10-12 22:50:52,104 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:50:52,114 INFO  L225             Difference]: With dead ends: 8505
[2024-10-12 22:50:52,115 INFO  L226             Difference]: Without dead ends: 4370
[2024-10-12 22:50:52,119 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:50:52,122 INFO  L432           NwaCegarLoop]: 6545 mSDtfsCounter, 0 mSDsluCounter, 13076 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19621 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-12 22:50:52,123 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19621 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-12 22:50:52,128 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4370 states.
[2024-10-12 22:50:52,171 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4370 to 4370.
[2024-10-12 22:50:52,179 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4370 states, 4369 states have (on average 1.5001144426642252) internal successors, (6554), 4369 states have internal predecessors, (6554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:50:52,187 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4370 states to 4370 states and 6554 transitions.
[2024-10-12 22:50:52,188 INFO  L78                 Accepts]: Start accepts. Automaton has 4370 states and 6554 transitions. Word has length 214
[2024-10-12 22:50:52,188 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:50:52,189 INFO  L471      AbstractCegarLoop]: Abstraction has 4370 states and 6554 transitions.
[2024-10-12 22:50:52,189 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:50:52,189 INFO  L276                IsEmpty]: Start isEmpty. Operand 4370 states and 6554 transitions.
[2024-10-12 22:50:52,190 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 216
[2024-10-12 22:50:52,191 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:50:52,191 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 22:50:52,191 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-10-12 22:50:52,191 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:50:52,192 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:50:52,192 INFO  L85        PathProgramCache]: Analyzing trace with hash 1172086335, now seen corresponding path program 1 times
[2024-10-12 22:50:52,192 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:50:52,192 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962561269]
[2024-10-12 22:50:52,193 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:50:52,193 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:50:52,258 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:50:52,604 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:50:52,604 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:50:52,605 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962561269]
[2024-10-12 22:50:52,605 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962561269] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:50:52,605 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:50:52,605 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-12 22:50:52,605 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333734098]
[2024-10-12 22:50:52,605 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:50:52,605 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-12 22:50:52,605 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:50:52,606 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-12 22:50:52,606 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-10-12 22:50:52,606 INFO  L87              Difference]: Start difference. First operand 4370 states and 6554 transitions. Second operand  has 5 states, 5 states have (on average 43.0) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:50:52,770 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:50:52,770 INFO  L93              Difference]: Finished difference Result 11478 states and 17217 transitions.
[2024-10-12 22:50:52,771 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-10-12 22:50:52,771 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 43.0) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 215
[2024-10-12 22:50:52,771 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:50:52,790 INFO  L225             Difference]: With dead ends: 11478
[2024-10-12 22:50:52,790 INFO  L226             Difference]: Without dead ends: 7341
[2024-10-12 22:50:52,796 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-10-12 22:50:52,797 INFO  L432           NwaCegarLoop]: 6541 mSDtfsCounter, 4603 mSDsluCounter, 19271 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4603 SdHoareTripleChecker+Valid, 25812 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-12 22:50:52,797 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4603 Valid, 25812 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-12 22:50:52,805 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7341 states.
[2024-10-12 22:50:52,867 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7341 to 4546.
[2024-10-12 22:50:52,873 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4546 states, 4545 states have (on average 1.5001100110011) internal successors, (6818), 4545 states have internal predecessors, (6818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:50:52,880 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4546 states to 4546 states and 6818 transitions.
[2024-10-12 22:50:52,881 INFO  L78                 Accepts]: Start accepts. Automaton has 4546 states and 6818 transitions. Word has length 215
[2024-10-12 22:50:52,881 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:50:52,881 INFO  L471      AbstractCegarLoop]: Abstraction has 4546 states and 6818 transitions.
[2024-10-12 22:50:52,881 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 43.0) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:50:52,881 INFO  L276                IsEmpty]: Start isEmpty. Operand 4546 states and 6818 transitions.
[2024-10-12 22:50:52,945 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2271
[2024-10-12 22:50:52,945 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:50:52,946 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-10-12 22:50:52,947 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-10-12 22:50:52,947 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:50:52,947 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:50:52,948 INFO  L85        PathProgramCache]: Analyzing trace with hash 1902012225, now seen corresponding path program 1 times
[2024-10-12 22:50:52,948 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:50:52,948 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83154229]
[2024-10-12 22:50:52,949 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:50:52,949 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:50:55,275 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:50:58,159 INFO  L134       CoverageAnalysis]: Checked inductivity of 94 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:50:58,160 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:50:58,160 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83154229]
[2024-10-12 22:50:58,160 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83154229] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:50:58,160 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:50:58,160 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-12 22:50:58,161 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394785967]
[2024-10-12 22:50:58,161 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:50:58,163 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:50:58,163 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:50:58,165 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:50:58,165 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:50:58,166 INFO  L87              Difference]: Start difference. First operand 4546 states and 6818 transitions. Second operand  has 4 states, 4 states have (on average 567.5) internal successors, (2270), 3 states have internal predecessors, (2270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:50:58,302 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:50:58,302 INFO  L93              Difference]: Finished difference Result 8683 states and 13023 transitions.
[2024-10-12 22:50:58,302 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:50:58,304 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 567.5) internal successors, (2270), 3 states have internal predecessors, (2270), 0 states have call successors, (0), 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 2270
[2024-10-12 22:50:58,304 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:50:58,315 INFO  L225             Difference]: With dead ends: 8683
[2024-10-12 22:50:58,315 INFO  L226             Difference]: Without dead ends: 4546
[2024-10-12 22:50:58,320 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-10-12 22:50:58,321 INFO  L432           NwaCegarLoop]: 6529 mSDtfsCounter, 6339 mSDsluCounter, 6527 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6339 SdHoareTripleChecker+Valid, 13056 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-12 22:50:58,321 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [6339 Valid, 13056 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-12 22:50:58,326 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4546 states.
[2024-10-12 22:50:58,384 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 4546.
[2024-10-12 22:50:58,390 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4546 states, 4545 states have (on average 1.4998899889989) internal successors, (6817), 4545 states have internal predecessors, (6817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:50:58,397 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4546 states to 4546 states and 6817 transitions.
[2024-10-12 22:50:58,398 INFO  L78                 Accepts]: Start accepts. Automaton has 4546 states and 6817 transitions. Word has length 2270
[2024-10-12 22:50:58,398 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:50:58,399 INFO  L471      AbstractCegarLoop]: Abstraction has 4546 states and 6817 transitions.
[2024-10-12 22:50:58,400 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 567.5) internal successors, (2270), 3 states have internal predecessors, (2270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:50:58,400 INFO  L276                IsEmpty]: Start isEmpty. Operand 4546 states and 6817 transitions.
[2024-10-12 22:50:58,447 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2272
[2024-10-12 22:50:58,448 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:50:58,449 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 22:50:58,449 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-10-12 22:50:58,449 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:50:58,450 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:50:58,450 INFO  L85        PathProgramCache]: Analyzing trace with hash 98891799, now seen corresponding path program 1 times
[2024-10-12 22:50:58,451 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:50:58,451 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869126213]
[2024-10-12 22:50:58,451 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:50:58,451 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:51:00,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:51:02,017 INFO  L134       CoverageAnalysis]: Checked inductivity of 94 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:51:02,017 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:51:02,017 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869126213]
[2024-10-12 22:51:02,018 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869126213] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:51:02,018 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:51:02,018 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-12 22:51:02,018 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521783231]
[2024-10-12 22:51:02,018 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:51:02,020 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:51:02,020 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:51:02,021 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:51:02,022 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:51:02,022 INFO  L87              Difference]: Start difference. First operand 4546 states and 6817 transitions. Second operand  has 4 states, 4 states have (on average 567.75) internal successors, (2271), 3 states have internal predecessors, (2271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:02,156 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:51:02,157 INFO  L93              Difference]: Finished difference Result 8683 states and 13021 transitions.
[2024-10-12 22:51:02,157 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:51:02,158 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 567.75) internal successors, (2271), 3 states have internal predecessors, (2271), 0 states have call successors, (0), 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 2271
[2024-10-12 22:51:02,158 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:51:02,164 INFO  L225             Difference]: With dead ends: 8683
[2024-10-12 22:51:02,165 INFO  L226             Difference]: Without dead ends: 4546
[2024-10-12 22:51:02,168 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-10-12 22:51:02,169 INFO  L432           NwaCegarLoop]: 6528 mSDtfsCounter, 6327 mSDsluCounter, 6526 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6327 SdHoareTripleChecker+Valid, 13054 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-12 22:51:02,169 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [6327 Valid, 13054 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-12 22:51:02,174 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4546 states.
[2024-10-12 22:51:02,209 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 4546.
[2024-10-12 22:51:02,213 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4546 states, 4545 states have (on average 1.4996699669966997) internal successors, (6816), 4545 states have internal predecessors, (6816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:02,218 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4546 states to 4546 states and 6816 transitions.
[2024-10-12 22:51:02,218 INFO  L78                 Accepts]: Start accepts. Automaton has 4546 states and 6816 transitions. Word has length 2271
[2024-10-12 22:51:02,218 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:51:02,218 INFO  L471      AbstractCegarLoop]: Abstraction has 4546 states and 6816 transitions.
[2024-10-12 22:51:02,219 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 567.75) internal successors, (2271), 3 states have internal predecessors, (2271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:02,219 INFO  L276                IsEmpty]: Start isEmpty. Operand 4546 states and 6816 transitions.
[2024-10-12 22:51:02,241 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2273
[2024-10-12 22:51:02,242 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:51:02,243 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 22:51:02,243 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-10-12 22:51:02,243 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:51:02,243 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:51:02,244 INFO  L85        PathProgramCache]: Analyzing trace with hash 394659705, now seen corresponding path program 1 times
[2024-10-12 22:51:02,244 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:51:02,244 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501333469]
[2024-10-12 22:51:02,245 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:51:02,245 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:51:03,304 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:51:05,214 INFO  L134       CoverageAnalysis]: Checked inductivity of 94 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:51:05,214 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:51:05,214 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501333469]
[2024-10-12 22:51:05,215 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501333469] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:51:05,215 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:51:05,215 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-12 22:51:05,215 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381952170]
[2024-10-12 22:51:05,215 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:51:05,217 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:51:05,217 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:51:05,218 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:51:05,218 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:51:05,219 INFO  L87              Difference]: Start difference. First operand 4546 states and 6816 transitions. Second operand  has 4 states, 4 states have (on average 568.0) internal successors, (2272), 3 states have internal predecessors, (2272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:05,380 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:51:05,380 INFO  L93              Difference]: Finished difference Result 8683 states and 13019 transitions.
[2024-10-12 22:51:05,380 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:51:05,381 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 568.0) internal successors, (2272), 3 states have internal predecessors, (2272), 0 states have call successors, (0), 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 2272
[2024-10-12 22:51:05,382 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:51:05,390 INFO  L225             Difference]: With dead ends: 8683
[2024-10-12 22:51:05,391 INFO  L226             Difference]: Without dead ends: 4546
[2024-10-12 22:51:05,394 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-10-12 22:51:05,394 INFO  L432           NwaCegarLoop]: 6527 mSDtfsCounter, 6323 mSDsluCounter, 6525 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6323 SdHoareTripleChecker+Valid, 13052 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-12 22:51:05,395 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [6323 Valid, 13052 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-12 22:51:05,401 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4546 states.
[2024-10-12 22:51:05,443 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 4546.
[2024-10-12 22:51:05,448 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4546 states, 4545 states have (on average 1.4994499449944994) internal successors, (6815), 4545 states have internal predecessors, (6815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:05,453 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4546 states to 4546 states and 6815 transitions.
[2024-10-12 22:51:05,453 INFO  L78                 Accepts]: Start accepts. Automaton has 4546 states and 6815 transitions. Word has length 2272
[2024-10-12 22:51:05,454 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:51:05,454 INFO  L471      AbstractCegarLoop]: Abstraction has 4546 states and 6815 transitions.
[2024-10-12 22:51:05,455 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 568.0) internal successors, (2272), 3 states have internal predecessors, (2272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:05,455 INFO  L276                IsEmpty]: Start isEmpty. Operand 4546 states and 6815 transitions.
[2024-10-12 22:51:05,478 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2274
[2024-10-12 22:51:05,478 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:51:05,479 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 22:51:05,479 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-10-12 22:51:05,480 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:51:05,480 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:51:05,481 INFO  L85        PathProgramCache]: Analyzing trace with hash -1596031381, now seen corresponding path program 1 times
[2024-10-12 22:51:05,481 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:51:05,481 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632869434]
[2024-10-12 22:51:05,481 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:51:05,481 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:51:06,578 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:51:08,393 INFO  L134       CoverageAnalysis]: Checked inductivity of 94 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:51:08,393 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:51:08,394 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632869434]
[2024-10-12 22:51:08,394 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632869434] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:51:08,394 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:51:08,394 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-12 22:51:08,394 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724154605]
[2024-10-12 22:51:08,394 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:51:08,396 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:51:08,396 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:51:08,398 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:51:08,398 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:51:08,398 INFO  L87              Difference]: Start difference. First operand 4546 states and 6815 transitions. Second operand  has 4 states, 4 states have (on average 568.25) internal successors, (2273), 3 states have internal predecessors, (2273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:08,599 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:51:08,599 INFO  L93              Difference]: Finished difference Result 8683 states and 13017 transitions.
[2024-10-12 22:51:08,599 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:51:08,600 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 568.25) internal successors, (2273), 3 states have internal predecessors, (2273), 0 states have call successors, (0), 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 2273
[2024-10-12 22:51:08,600 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:51:08,606 INFO  L225             Difference]: With dead ends: 8683
[2024-10-12 22:51:08,607 INFO  L226             Difference]: Without dead ends: 4546
[2024-10-12 22:51:08,611 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-10-12 22:51:08,615 INFO  L432           NwaCegarLoop]: 6526 mSDtfsCounter, 6311 mSDsluCounter, 6524 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6311 SdHoareTripleChecker+Valid, 13050 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-12 22:51:08,617 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [6311 Valid, 13050 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-12 22:51:08,622 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4546 states.
[2024-10-12 22:51:08,658 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 4546.
[2024-10-12 22:51:08,663 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4546 states, 4545 states have (on average 1.4992299229922992) internal successors, (6814), 4545 states have internal predecessors, (6814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:08,669 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4546 states to 4546 states and 6814 transitions.
[2024-10-12 22:51:08,669 INFO  L78                 Accepts]: Start accepts. Automaton has 4546 states and 6814 transitions. Word has length 2273
[2024-10-12 22:51:08,669 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:51:08,670 INFO  L471      AbstractCegarLoop]: Abstraction has 4546 states and 6814 transitions.
[2024-10-12 22:51:08,670 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 568.25) internal successors, (2273), 3 states have internal predecessors, (2273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:08,671 INFO  L276                IsEmpty]: Start isEmpty. Operand 4546 states and 6814 transitions.
[2024-10-12 22:51:08,693 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2275
[2024-10-12 22:51:08,694 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:51:08,695 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 22:51:08,695 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-10-12 22:51:08,695 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:51:08,696 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:51:08,696 INFO  L85        PathProgramCache]: Analyzing trace with hash 61660977, now seen corresponding path program 1 times
[2024-10-12 22:51:08,697 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:51:08,697 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517942772]
[2024-10-12 22:51:08,697 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:51:08,697 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:51:10,057 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:51:11,871 INFO  L134       CoverageAnalysis]: Checked inductivity of 94 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:51:11,872 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:51:11,872 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517942772]
[2024-10-12 22:51:11,872 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517942772] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:51:11,872 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:51:11,872 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-12 22:51:11,872 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594355510]
[2024-10-12 22:51:11,872 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:51:11,874 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:51:11,874 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:51:11,876 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:51:11,876 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:51:11,876 INFO  L87              Difference]: Start difference. First operand 4546 states and 6814 transitions. Second operand  has 4 states, 4 states have (on average 568.5) internal successors, (2274), 3 states have internal predecessors, (2274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:12,677 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:51:12,678 INFO  L93              Difference]: Finished difference Result 8683 states and 13015 transitions.
[2024-10-12 22:51:12,678 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:51:12,679 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 568.5) internal successors, (2274), 3 states have internal predecessors, (2274), 0 states have call successors, (0), 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 2274
[2024-10-12 22:51:12,681 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:51:12,686 INFO  L225             Difference]: With dead ends: 8683
[2024-10-12 22:51:12,687 INFO  L226             Difference]: Without dead ends: 4546
[2024-10-12 22:51:12,690 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-10-12 22:51:12,692 INFO  L432           NwaCegarLoop]: 6525 mSDtfsCounter, 6307 mSDsluCounter, 6523 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6307 SdHoareTripleChecker+Valid, 13048 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-10-12 22:51:12,693 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [6307 Valid, 13048 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-10-12 22:51:12,701 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4546 states.
[2024-10-12 22:51:12,741 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 4546.
[2024-10-12 22:51:12,746 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4546 states, 4545 states have (on average 1.499009900990099) internal successors, (6813), 4545 states have internal predecessors, (6813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:12,756 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4546 states to 4546 states and 6813 transitions.
[2024-10-12 22:51:12,756 INFO  L78                 Accepts]: Start accepts. Automaton has 4546 states and 6813 transitions. Word has length 2274
[2024-10-12 22:51:12,757 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:51:12,757 INFO  L471      AbstractCegarLoop]: Abstraction has 4546 states and 6813 transitions.
[2024-10-12 22:51:12,758 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 568.5) internal successors, (2274), 3 states have internal predecessors, (2274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:12,758 INFO  L276                IsEmpty]: Start isEmpty. Operand 4546 states and 6813 transitions.
[2024-10-12 22:51:12,783 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2276
[2024-10-12 22:51:12,784 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:51:12,785 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 22:51:12,785 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-10-12 22:51:12,785 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:51:12,785 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:51:12,786 INFO  L85        PathProgramCache]: Analyzing trace with hash 1026142015, now seen corresponding path program 1 times
[2024-10-12 22:51:12,786 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:51:12,786 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567352471]
[2024-10-12 22:51:12,787 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:51:12,787 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:51:14,091 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:51:16,310 INFO  L134       CoverageAnalysis]: Checked inductivity of 94 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:51:16,314 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:51:16,314 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567352471]
[2024-10-12 22:51:16,314 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567352471] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:51:16,315 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:51:16,315 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-12 22:51:16,315 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508845070]
[2024-10-12 22:51:16,315 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:51:16,316 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:51:16,317 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:51:16,318 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:51:16,322 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:51:16,323 INFO  L87              Difference]: Start difference. First operand 4546 states and 6813 transitions. Second operand  has 4 states, 4 states have (on average 568.75) internal successors, (2275), 3 states have internal predecessors, (2275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:17,105 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:51:17,105 INFO  L93              Difference]: Finished difference Result 8683 states and 13013 transitions.
[2024-10-12 22:51:17,106 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:51:17,106 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 568.75) internal successors, (2275), 3 states have internal predecessors, (2275), 0 states have call successors, (0), 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 2275
[2024-10-12 22:51:17,107 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:51:17,120 INFO  L225             Difference]: With dead ends: 8683
[2024-10-12 22:51:17,120 INFO  L226             Difference]: Without dead ends: 4546
[2024-10-12 22:51:17,124 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-10-12 22:51:17,125 INFO  L432           NwaCegarLoop]: 6524 mSDtfsCounter, 6295 mSDsluCounter, 6522 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6295 SdHoareTripleChecker+Valid, 13046 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-10-12 22:51:17,125 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [6295 Valid, 13046 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-10-12 22:51:17,130 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4546 states.
[2024-10-12 22:51:17,156 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 4546.
[2024-10-12 22:51:17,160 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4546 states, 4545 states have (on average 1.4987898789878988) internal successors, (6812), 4545 states have internal predecessors, (6812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:17,164 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4546 states to 4546 states and 6812 transitions.
[2024-10-12 22:51:17,164 INFO  L78                 Accepts]: Start accepts. Automaton has 4546 states and 6812 transitions. Word has length 2275
[2024-10-12 22:51:17,164 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:51:17,165 INFO  L471      AbstractCegarLoop]: Abstraction has 4546 states and 6812 transitions.
[2024-10-12 22:51:17,165 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 568.75) internal successors, (2275), 3 states have internal predecessors, (2275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:17,165 INFO  L276                IsEmpty]: Start isEmpty. Operand 4546 states and 6812 transitions.
[2024-10-12 22:51:17,188 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2277
[2024-10-12 22:51:17,188 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:51:17,189 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 22:51:17,190 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-10-12 22:51:17,190 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:51:17,190 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:51:17,191 INFO  L85        PathProgramCache]: Analyzing trace with hash -114340247, now seen corresponding path program 1 times
[2024-10-12 22:51:17,191 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:51:17,191 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998330598]
[2024-10-12 22:51:17,192 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:51:17,192 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:51:18,348 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:51:20,313 INFO  L134       CoverageAnalysis]: Checked inductivity of 94 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:51:20,313 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:51:20,313 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998330598]
[2024-10-12 22:51:20,313 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998330598] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:51:20,313 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:51:20,314 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-12 22:51:20,314 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876467861]
[2024-10-12 22:51:20,314 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:51:20,315 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:51:20,316 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:51:20,317 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:51:20,317 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:51:20,317 INFO  L87              Difference]: Start difference. First operand 4546 states and 6812 transitions. Second operand  has 4 states, 4 states have (on average 569.0) internal successors, (2276), 3 states have internal predecessors, (2276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:20,429 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:51:20,430 INFO  L93              Difference]: Finished difference Result 8683 states and 13011 transitions.
[2024-10-12 22:51:20,430 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:51:20,431 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 569.0) internal successors, (2276), 3 states have internal predecessors, (2276), 0 states have call successors, (0), 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 2276
[2024-10-12 22:51:20,431 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:51:20,436 INFO  L225             Difference]: With dead ends: 8683
[2024-10-12 22:51:20,436 INFO  L226             Difference]: Without dead ends: 4546
[2024-10-12 22:51:20,440 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-10-12 22:51:20,440 INFO  L432           NwaCegarLoop]: 6523 mSDtfsCounter, 6291 mSDsluCounter, 6521 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6291 SdHoareTripleChecker+Valid, 13044 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-12 22:51:20,441 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [6291 Valid, 13044 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-12 22:51:20,444 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4546 states.
[2024-10-12 22:51:20,473 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 4546.
[2024-10-12 22:51:20,476 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4546 states, 4545 states have (on average 1.4985698569856987) internal successors, (6811), 4545 states have internal predecessors, (6811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:20,480 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4546 states to 4546 states and 6811 transitions.
[2024-10-12 22:51:20,481 INFO  L78                 Accepts]: Start accepts. Automaton has 4546 states and 6811 transitions. Word has length 2276
[2024-10-12 22:51:20,481 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:51:20,481 INFO  L471      AbstractCegarLoop]: Abstraction has 4546 states and 6811 transitions.
[2024-10-12 22:51:20,482 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 569.0) internal successors, (2276), 3 states have internal predecessors, (2276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:20,482 INFO  L276                IsEmpty]: Start isEmpty. Operand 4546 states and 6811 transitions.
[2024-10-12 22:51:20,529 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2278
[2024-10-12 22:51:20,529 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:51:20,530 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 22:51:20,531 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-10-12 22:51:20,531 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:51:20,531 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:51:20,532 INFO  L85        PathProgramCache]: Analyzing trace with hash 1825647251, now seen corresponding path program 1 times
[2024-10-12 22:51:20,532 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:51:20,533 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742814614]
[2024-10-12 22:51:20,533 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:51:20,533 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:51:21,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:51:23,565 INFO  L134       CoverageAnalysis]: Checked inductivity of 94 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:51:23,565 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:51:23,565 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742814614]
[2024-10-12 22:51:23,569 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742814614] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:51:23,569 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:51:23,569 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-12 22:51:23,570 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522198281]
[2024-10-12 22:51:23,570 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:51:23,571 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:51:23,571 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:51:23,573 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:51:23,573 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:51:23,573 INFO  L87              Difference]: Start difference. First operand 4546 states and 6811 transitions. Second operand  has 4 states, 4 states have (on average 569.25) internal successors, (2277), 3 states have internal predecessors, (2277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:23,717 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:51:23,717 INFO  L93              Difference]: Finished difference Result 8683 states and 13009 transitions.
[2024-10-12 22:51:23,717 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:51:23,718 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 569.25) internal successors, (2277), 3 states have internal predecessors, (2277), 0 states have call successors, (0), 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 2277
[2024-10-12 22:51:23,719 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:51:23,723 INFO  L225             Difference]: With dead ends: 8683
[2024-10-12 22:51:23,723 INFO  L226             Difference]: Without dead ends: 4546
[2024-10-12 22:51:23,727 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-10-12 22:51:23,728 INFO  L432           NwaCegarLoop]: 6522 mSDtfsCounter, 6279 mSDsluCounter, 6520 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6279 SdHoareTripleChecker+Valid, 13042 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-12 22:51:23,728 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [6279 Valid, 13042 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-12 22:51:23,732 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4546 states.
[2024-10-12 22:51:23,760 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 4546.
[2024-10-12 22:51:23,765 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4546 states, 4545 states have (on average 1.4983498349834983) internal successors, (6810), 4545 states have internal predecessors, (6810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:23,769 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4546 states to 4546 states and 6810 transitions.
[2024-10-12 22:51:23,769 INFO  L78                 Accepts]: Start accepts. Automaton has 4546 states and 6810 transitions. Word has length 2277
[2024-10-12 22:51:23,770 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:51:23,770 INFO  L471      AbstractCegarLoop]: Abstraction has 4546 states and 6810 transitions.
[2024-10-12 22:51:23,771 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 569.25) internal successors, (2277), 3 states have internal predecessors, (2277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:23,771 INFO  L276                IsEmpty]: Start isEmpty. Operand 4546 states and 6810 transitions.
[2024-10-12 22:51:23,850 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2279
[2024-10-12 22:51:23,850 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:51:23,851 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 22:51:23,852 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-10-12 22:51:23,852 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:51:23,852 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:51:23,853 INFO  L85        PathProgramCache]: Analyzing trace with hash 909227297, now seen corresponding path program 1 times
[2024-10-12 22:51:23,853 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:51:23,853 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729250780]
[2024-10-12 22:51:23,854 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:51:23,855 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:51:25,865 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:51:29,395 INFO  L134       CoverageAnalysis]: Checked inductivity of 94 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:51:29,396 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:51:29,396 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729250780]
[2024-10-12 22:51:29,396 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729250780] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:51:29,396 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:51:29,396 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-10-12 22:51:29,396 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718609797]
[2024-10-12 22:51:29,396 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:51:29,398 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-10-12 22:51:29,398 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:51:29,400 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-10-12 22:51:29,400 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-10-12 22:51:29,400 INFO  L87              Difference]: Start difference. First operand 4546 states and 6810 transitions. Second operand  has 6 states, 6 states have (on average 379.6666666666667) internal successors, (2278), 5 states have internal predecessors, (2278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:29,614 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:51:29,614 INFO  L93              Difference]: Finished difference Result 8687 states and 13013 transitions.
[2024-10-12 22:51:29,614 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-10-12 22:51:29,615 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 379.6666666666667) internal successors, (2278), 5 states have internal predecessors, (2278), 0 states have call successors, (0), 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 2278
[2024-10-12 22:51:29,615 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:51:29,620 INFO  L225             Difference]: With dead ends: 8687
[2024-10-12 22:51:29,620 INFO  L226             Difference]: Without dead ends: 4550
[2024-10-12 22:51:29,623 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-10-12 22:51:29,624 INFO  L432           NwaCegarLoop]: 6494 mSDtfsCounter, 6332 mSDsluCounter, 19473 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6332 SdHoareTripleChecker+Valid, 25967 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-12 22:51:29,624 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [6332 Valid, 25967 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-12 22:51:29,628 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4550 states.
[2024-10-12 22:51:29,656 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4550 to 4548.
[2024-10-12 22:51:29,660 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4548 states, 4547 states have (on average 1.4981306355839015) internal successors, (6812), 4547 states have internal predecessors, (6812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:29,664 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4548 states to 4548 states and 6812 transitions.
[2024-10-12 22:51:29,664 INFO  L78                 Accepts]: Start accepts. Automaton has 4548 states and 6812 transitions. Word has length 2278
[2024-10-12 22:51:29,665 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:51:29,665 INFO  L471      AbstractCegarLoop]: Abstraction has 4548 states and 6812 transitions.
[2024-10-12 22:51:29,665 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 379.6666666666667) internal successors, (2278), 5 states have internal predecessors, (2278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:29,666 INFO  L276                IsEmpty]: Start isEmpty. Operand 4548 states and 6812 transitions.
[2024-10-12 22:51:29,687 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2280
[2024-10-12 22:51:29,687 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:51:29,688 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 22:51:29,688 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-10-12 22:51:29,688 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:51:29,689 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:51:29,689 INFO  L85        PathProgramCache]: Analyzing trace with hash -1278058397, now seen corresponding path program 1 times
[2024-10-12 22:51:29,689 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:51:29,689 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189046837]
[2024-10-12 22:51:29,690 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:51:29,690 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:51:31,734 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:51:35,110 INFO  L134       CoverageAnalysis]: Checked inductivity of 94 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:51:35,111 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:51:35,111 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189046837]
[2024-10-12 22:51:35,111 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189046837] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:51:35,111 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:51:35,111 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-10-12 22:51:35,111 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959381116]
[2024-10-12 22:51:35,111 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:51:35,113 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-10-12 22:51:35,113 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:51:35,114 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-10-12 22:51:35,114 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-10-12 22:51:35,115 INFO  L87              Difference]: Start difference. First operand 4548 states and 6812 transitions. Second operand  has 6 states, 6 states have (on average 379.8333333333333) internal successors, (2279), 6 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:35,313 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:51:35,313 INFO  L93              Difference]: Finished difference Result 8691 states and 13017 transitions.
[2024-10-12 22:51:35,313 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-10-12 22:51:35,314 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 379.8333333333333) internal successors, (2279), 6 states have internal predecessors, (2279), 0 states have call successors, (0), 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 2279
[2024-10-12 22:51:35,314 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:51:35,319 INFO  L225             Difference]: With dead ends: 8691
[2024-10-12 22:51:35,319 INFO  L226             Difference]: Without dead ends: 4552
[2024-10-12 22:51:35,322 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-10-12 22:51:35,322 INFO  L432           NwaCegarLoop]: 6494 mSDtfsCounter, 6533 mSDsluCounter, 19473 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6533 SdHoareTripleChecker+Valid, 25967 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-12 22:51:35,323 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [6533 Valid, 25967 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-12 22:51:35,326 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4552 states.
[2024-10-12 22:51:35,360 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4552 to 4550.
[2024-10-12 22:51:35,363 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4550 states, 4549 states have (on average 1.497911628929435) internal successors, (6814), 4549 states have internal predecessors, (6814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:35,366 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4550 states to 4550 states and 6814 transitions.
[2024-10-12 22:51:35,367 INFO  L78                 Accepts]: Start accepts. Automaton has 4550 states and 6814 transitions. Word has length 2279
[2024-10-12 22:51:35,367 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:51:35,367 INFO  L471      AbstractCegarLoop]: Abstraction has 4550 states and 6814 transitions.
[2024-10-12 22:51:35,368 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 379.8333333333333) internal successors, (2279), 6 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 22:51:35,368 INFO  L276                IsEmpty]: Start isEmpty. Operand 4550 states and 6814 transitions.
[2024-10-12 22:51:35,392 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2281
[2024-10-12 22:51:35,393 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:51:35,394 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-10-12 22:51:35,394 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-10-12 22:51:35,394 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:51:35,395 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:51:35,395 INFO  L85        PathProgramCache]: Analyzing trace with hash -1866094339, now seen corresponding path program 1 times
[2024-10-12 22:51:35,395 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:51:35,395 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161333499]
[2024-10-12 22:51:35,396 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:51:35,396 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:51:36,606 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat