/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n5_w16_d128_e0.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-25 14:03:51,585 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-25 14:03:51,660 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf
[2023-12-25 14:03:51,664 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-25 14:03:51,664 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-25 14:03:51,697 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-25 14:03:51,698 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-25 14:03:51,698 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-25 14:03:51,699 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-25 14:03:51,702 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-25 14:03:51,702 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-25 14:03:51,702 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-25 14:03:51,703 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-25 14:03:51,704 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-25 14:03:51,704 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-25 14:03:51,705 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-25 14:03:51,705 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-25 14:03:51,705 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-25 14:03:51,705 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-25 14:03:51,705 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-25 14:03:51,706 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-25 14:03:51,706 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-25 14:03:51,706 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-25 14:03:51,706 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-25 14:03:51,707 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-25 14:03:51,707 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-25 14:03:51,707 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-25 14:03:51,707 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-25 14:03:51,708 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-25 14:03:51,708 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 14:03:51,709 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-25 14:03:51,709 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-25 14:03:51,709 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-25 14:03:51,709 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-25 14:03:51,709 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-25 14:03:51,710 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-25 14:03:51,710 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-25 14:03:51,710 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-25 14:03:51,710 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-25 14:03:51,710 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-25 14:03:51,710 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-25 14:03:51,947 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-25 14:03:51,963 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-25 14:03:51,965 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-25 14:03:51,966 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-25 14:03:51,967 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-25 14:03:51,968 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n5_w16_d128_e0.c
[2023-12-25 14:03:53,088 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-25 14:03:53,673 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-25 14:03:53,674 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n5_w16_d128_e0.c
[2023-12-25 14:03:53,732 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c0bb18ec/257d21b3a57e44629900e962ce4f4610/FLAG3c9784176
[2023-12-25 14:03:53,746 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c0bb18ec/257d21b3a57e44629900e962ce4f4610
[2023-12-25 14:03:53,749 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-25 14:03:53,752 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-25 14:03:53,755 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-25 14:03:53,755 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-25 14:03:53,759 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-25 14:03:53,759 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 02:03:53" (1/1) ...
[2023-12-25 14:03:53,760 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@103f0a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:03:53, skipping insertion in model container
[2023-12-25 14:03:53,760 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 02:03:53" (1/1) ...
[2023-12-25 14:03:54,015 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-25 14:03:54,358 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n5_w16_d128_e0.c[1326,1339]
[2023-12-25 14:03:55,723 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 14:03:55,732 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-25 14:03:55,742 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n5_w16_d128_e0.c[1326,1339]
[2023-12-25 14:03:56,719 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 14:03:56,732 INFO  L206         MainTranslator]: Completed translation
[2023-12-25 14:03:56,733 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:03:56 WrapperNode
[2023-12-25 14:03:56,733 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-25 14:03:56,734 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-25 14:03:56,734 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-25 14:03:56,735 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-25 14:03:56,740 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:03:56" (1/1) ...
[2023-12-25 14:03:57,285 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:03:56" (1/1) ...
[2023-12-25 14:04:00,727 INFO  L138                Inliner]: procedures = 18, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49786
[2023-12-25 14:04:00,728 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-25 14:04:00,728 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-25 14:04:00,729 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-25 14:04:00,729 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-25 14:04:00,737 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:03:56" (1/1) ...
[2023-12-25 14:04:00,737 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:03:56" (1/1) ...
[2023-12-25 14:04:02,038 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:03:56" (1/1) ...
[2023-12-25 14:04:02,726 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].
[2023-12-25 14:04:02,727 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:03:56" (1/1) ...
[2023-12-25 14:04:02,727 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:03:56" (1/1) ...
[2023-12-25 14:04:03,859 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:03:56" (1/1) ...
[2023-12-25 14:04:03,981 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:03:56" (1/1) ...
[2023-12-25 14:04:04,208 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:03:56" (1/1) ...
[2023-12-25 14:04:04,378 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:03:56" (1/1) ...
[2023-12-25 14:04:05,302 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-25 14:04:05,304 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-25 14:04:05,304 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-25 14:04:05,304 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-25 14:04:05,316 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:03:56" (1/1) ...
[2023-12-25 14:04:05,321 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 14:04:05,330 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:04:05,368 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)
[2023-12-25 14:04:05,383 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
[2023-12-25 14:04:05,400 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-25 14:04:05,401 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-25 14:04:05,401 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-25 14:04:05,401 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-25 14:04:05,401 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-25 14:04:05,401 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-25 14:04:07,752 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-25 14:04:07,754 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-25 14:04:34,873 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-25 14:04:35,940 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-25 14:04:35,941 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-25 14:04:35,942 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 02:04:35 BoogieIcfgContainer
[2023-12-25 14:04:35,942 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-25 14:04:35,945 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-25 14:04:35,945 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-25 14:04:35,948 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-25 14:04:35,948 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 02:03:53" (1/3) ...
[2023-12-25 14:04:35,949 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a856990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 02:04:35, skipping insertion in model container
[2023-12-25 14:04:35,949 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:03:56" (2/3) ...
[2023-12-25 14:04:35,951 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a856990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 02:04:35, skipping insertion in model container
[2023-12-25 14:04:35,951 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 02:04:35" (3/3) ...
[2023-12-25 14:04:35,952 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n5_w16_d128_e0.c
[2023-12-25 14:04:35,967 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-25 14:04:35,968 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-25 14:04:36,135 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-25 14:04:36,142 INFO  L357      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, mHoare=true, 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;@427c99bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-25 14:04:36,142 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-25 14:04:36,171 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 8750 states, 8731 states have (on average 1.6653304317947544) internal successors, (14540), 8732 states have internal predecessors, (14540), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:04:36,551 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2549
[2023-12-25 14:04:36,552 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:04:36,554 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:04:36,555 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:04:36,559 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:04:36,561 INFO  L85        PathProgramCache]: Analyzing trace with hash 1808424521, now seen corresponding path program 1 times
[2023-12-25 14:04:36,569 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:04:36,569 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306280988]
[2023-12-25 14:04:36,570 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:04:36,571 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:04:37,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:40,937 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:04:40,939 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:40,943 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:04:40,945 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:40,946 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:04:40,947 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:40,948 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:04:40,948 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:40,949 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:04:40,950 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:40,952 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:04:40,953 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:40,954 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:04:40,954 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:40,956 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:04:40,957 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:40,958 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:04:40,958 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:40,959 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:04:40,960 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:40,961 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:04:40,962 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:40,964 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:04:40,964 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:40,965 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:04:40,969 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:40,971 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:04:40,972 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:40,973 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:04:40,973 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:40,975 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:04:40,975 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:40,984 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:04:40,985 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:04:40,985 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306280988]
[2023-12-25 14:04:40,985 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306280988] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:04:40,986 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:04:40,986 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-25 14:04:40,988 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262942979]
[2023-12-25 14:04:40,988 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:04:40,996 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-25 14:04:40,997 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:04:41,030 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-25 14:04:41,032 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-25 14:04:41,057 INFO  L87              Difference]: Start difference. First operand  has 8750 states, 8731 states have (on average 1.6653304317947544) internal successors, (14540), 8732 states have internal predecessors, (14540), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand  has 2 states, 2 states have (on average 1235.5) internal successors, (2471), 2 states have internal predecessors, (2471), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16)
[2023-12-25 14:04:41,332 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:04:41,332 INFO  L93              Difference]: Finished difference Result 15502 states and 25833 transitions.
[2023-12-25 14:04:41,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-25 14:04:41,337 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 1235.5) internal successors, (2471), 2 states have internal predecessors, (2471), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 2548
[2023-12-25 14:04:41,343 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:04:41,394 INFO  L225             Difference]: With dead ends: 15502
[2023-12-25 14:04:41,394 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:04:41,414 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-25 14:04:41,417 INFO  L413           NwaCegarLoop]: 14566 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14566 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:04:41,418 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14566 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:04:41,447 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:04:41,611 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:04:41,641 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.6649484536082475) internal successors, (14535), 8730 states have internal predecessors, (14535), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:04:41,822 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14567 transitions.
[2023-12-25 14:04:41,823 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14567 transitions. Word has length 2548
[2023-12-25 14:04:41,827 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:04:41,827 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14567 transitions.
[2023-12-25 14:04:41,829 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 1235.5) internal successors, (2471), 2 states have internal predecessors, (2471), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16)
[2023-12-25 14:04:41,829 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14567 transitions.
[2023-12-25 14:04:42,184 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2549
[2023-12-25 14:04:42,185 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:04:42,186 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:04:42,187 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-25 14:04:42,187 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:04:42,187 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:04:42,188 INFO  L85        PathProgramCache]: Analyzing trace with hash 661254953, now seen corresponding path program 1 times
[2023-12-25 14:04:42,188 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:04:42,189 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529424628]
[2023-12-25 14:04:42,189 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:04:42,190 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:04:48,771 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:57,861 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:04:57,865 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:57,871 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:04:57,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:57,876 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:04:57,877 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:57,880 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:04:57,881 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:57,883 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:04:57,884 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:57,887 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:04:57,889 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:57,892 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:04:57,893 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:57,896 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:04:57,897 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:57,900 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:04:57,901 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:57,903 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:04:57,905 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:57,908 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:04:57,911 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:57,914 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:04:57,916 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:57,919 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:04:57,920 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:57,923 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:04:57,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:57,926 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:04:57,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:57,930 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:04:57,931 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:04:57,951 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:04:57,952 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:04:57,952 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529424628]
[2023-12-25 14:04:57,953 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529424628] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:04:57,953 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:04:57,953 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:04:57,954 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144623104]
[2023-12-25 14:04:57,954 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:04:57,960 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:04:57,964 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:04:57,969 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:04:57,970 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:04:57,975 INFO  L87              Difference]: Start difference. First operand 8748 states and 14567 transitions. Second operand  has 4 states, 4 states have (on average 617.75) internal successors, (2471), 4 states have internal predecessors, (2471), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:05:00,604 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:05:00,605 INFO  L93              Difference]: Finished difference Result 15500 states and 25808 transitions.
[2023-12-25 14:05:00,608 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:05:00,609 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 617.75) internal successors, (2471), 4 states have internal predecessors, (2471), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2548
[2023-12-25 14:05:00,613 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:05:00,645 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:05:00,645 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:05:00,658 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:05:00,659 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 12199 mSDsluCounter, 13258 mSDsCounter, 0 mSdLazyCounter, 2633 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12199 SdHoareTripleChecker+Valid, 26514 SdHoareTripleChecker+Invalid, 2633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2023-12-25 14:05:00,659 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12199 Valid, 26514 Invalid, 2633 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2633 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2023-12-25 14:05:00,673 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:05:00,819 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:05:00,832 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.6648339060710196) internal successors, (14534), 8730 states have internal predecessors, (14534), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:05:00,851 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14566 transitions.
[2023-12-25 14:05:00,852 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14566 transitions. Word has length 2548
[2023-12-25 14:05:00,857 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:05:00,857 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14566 transitions.
[2023-12-25 14:05:00,858 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 617.75) internal successors, (2471), 4 states have internal predecessors, (2471), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:05:00,858 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14566 transitions.
[2023-12-25 14:05:00,929 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2550
[2023-12-25 14:05:00,929 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:05:00,931 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 14:05:00,931 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-25 14:05:00,931 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:05:00,932 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:05:00,932 INFO  L85        PathProgramCache]: Analyzing trace with hash 217274123, now seen corresponding path program 1 times
[2023-12-25 14:05:00,933 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:05:00,933 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540647301]
[2023-12-25 14:05:00,933 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:05:00,933 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:05:07,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:12,640 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:05:12,642 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:12,644 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:05:12,645 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:12,646 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:05:12,646 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:12,647 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:05:12,649 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:12,651 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:05:12,651 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:12,652 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:05:12,653 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:12,655 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:05:12,655 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:12,656 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:05:12,657 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:12,658 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:05:12,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:12,660 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:05:12,661 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:12,663 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:05:12,664 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:12,666 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:05:12,667 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:12,668 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:05:12,669 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:12,670 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:05:12,670 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:12,673 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:05:12,674 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:12,675 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:05:12,677 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:12,685 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:05:12,685 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:05:12,686 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540647301]
[2023-12-25 14:05:12,686 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540647301] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:05:12,686 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:05:12,686 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:05:12,686 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064889534]
[2023-12-25 14:05:12,687 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:05:12,690 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:05:12,690 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:05:12,693 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:05:12,695 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:05:12,696 INFO  L87              Difference]: Start difference. First operand 8748 states and 14566 transitions. Second operand  has 5 states, 5 states have (on average 494.4) internal successors, (2472), 5 states have internal predecessors, (2472), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:05:14,789 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:05:14,790 INFO  L93              Difference]: Finished difference Result 16520 states and 27459 transitions.
[2023-12-25 14:05:14,790 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:05:14,791 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 494.4) internal successors, (2472), 5 states have internal predecessors, (2472), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2549
[2023-12-25 14:05:14,795 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:05:14,827 INFO  L225             Difference]: With dead ends: 16520
[2023-12-25 14:05:14,827 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:05:14,837 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-25 14:05:14,838 INFO  L413           NwaCegarLoop]: 14414 mSDtfsCounter, 15231 mSDsluCounter, 27688 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15231 SdHoareTripleChecker+Valid, 42102 SdHoareTripleChecker+Invalid, 1746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2023-12-25 14:05:14,838 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [15231 Valid, 42102 Invalid, 1746 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [137 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2023-12-25 14:05:14,848 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:05:14,966 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:05:14,978 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.6647193585337916) internal successors, (14533), 8730 states have internal predecessors, (14533), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:05:14,992 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14565 transitions.
[2023-12-25 14:05:14,992 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14565 transitions. Word has length 2549
[2023-12-25 14:05:14,994 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:05:14,994 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14565 transitions.
[2023-12-25 14:05:14,996 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 494.4) internal successors, (2472), 5 states have internal predecessors, (2472), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:05:14,996 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14565 transitions.
[2023-12-25 14:05:15,045 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2551
[2023-12-25 14:05:15,046 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:05:15,047 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 14:05:15,047 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-25 14:05:15,047 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:05:15,048 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:05:15,048 INFO  L85        PathProgramCache]: Analyzing trace with hash -732066273, now seen corresponding path program 1 times
[2023-12-25 14:05:15,048 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:05:15,048 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674276765]
[2023-12-25 14:05:15,049 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:05:15,049 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:05:18,593 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:22,579 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:05:22,580 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:22,581 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:05:22,582 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:22,583 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:05:22,583 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:22,584 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:05:22,585 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:22,586 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:05:22,587 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:22,588 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:05:22,588 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:22,589 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:05:22,590 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:22,591 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:05:22,591 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:22,592 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:05:22,593 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:22,594 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:05:22,594 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:22,595 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:05:22,596 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:22,597 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:05:22,598 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:22,599 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:05:22,599 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:22,600 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:05:22,601 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:22,602 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:05:22,602 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:22,603 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:05:22,604 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:22,610 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:05:22,610 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:05:22,610 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674276765]
[2023-12-25 14:05:22,610 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674276765] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:05:22,610 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:05:22,611 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:05:22,611 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356893729]
[2023-12-25 14:05:22,611 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:05:22,613 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:05:22,613 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:05:22,616 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:05:22,616 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:05:22,616 INFO  L87              Difference]: Start difference. First operand 8748 states and 14565 transitions. Second operand  has 5 states, 5 states have (on average 494.6) internal successors, (2473), 5 states have internal predecessors, (2473), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:05:24,685 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:05:24,685 INFO  L93              Difference]: Finished difference Result 15500 states and 25804 transitions.
[2023-12-25 14:05:24,692 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:05:24,693 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 494.6) internal successors, (2473), 5 states have internal predecessors, (2473), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2550
[2023-12-25 14:05:24,696 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:05:24,721 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:05:24,721 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:05:24,733 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:05:24,738 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 27492 mSDsluCounter, 13258 mSDsCounter, 0 mSdLazyCounter, 2629 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27508 SdHoareTripleChecker+Valid, 26514 SdHoareTripleChecker+Invalid, 2630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2023-12-25 14:05:24,739 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [27508 Valid, 26514 Invalid, 2630 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2629 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2023-12-25 14:05:24,753 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:05:24,868 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:05:24,882 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.6646048109965637) internal successors, (14532), 8730 states have internal predecessors, (14532), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:05:24,897 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14564 transitions.
[2023-12-25 14:05:24,897 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14564 transitions. Word has length 2550
[2023-12-25 14:05:24,899 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:05:24,900 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14564 transitions.
[2023-12-25 14:05:24,901 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 494.6) internal successors, (2473), 5 states have internal predecessors, (2473), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:05:24,901 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14564 transitions.
[2023-12-25 14:05:24,950 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2552
[2023-12-25 14:05:24,950 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:05:24,951 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 14:05:24,952 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-12-25 14:05:24,952 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:05:24,952 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:05:24,953 INFO  L85        PathProgramCache]: Analyzing trace with hash -831685137, now seen corresponding path program 1 times
[2023-12-25 14:05:24,953 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:05:24,953 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886519719]
[2023-12-25 14:05:24,953 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:05:24,953 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:05:28,762 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:32,204 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:05:32,205 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:32,207 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:05:32,207 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:32,209 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:05:32,209 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:32,210 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:05:32,211 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:32,212 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:05:32,213 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:32,214 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:05:32,215 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:32,216 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:05:32,216 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:32,217 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:05:32,218 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:32,219 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:05:32,219 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:32,220 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:05:32,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:32,222 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:05:32,223 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:32,224 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:05:32,224 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:32,225 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:05:32,226 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:32,227 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:05:32,227 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:32,228 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:05:32,229 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:32,230 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:05:32,230 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:32,236 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:05:32,236 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:05:32,237 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886519719]
[2023-12-25 14:05:32,237 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886519719] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:05:32,237 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:05:32,237 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:05:32,237 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228215345]
[2023-12-25 14:05:32,237 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:05:32,239 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:05:32,240 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:05:32,242 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:05:32,242 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:05:32,243 INFO  L87              Difference]: Start difference. First operand 8748 states and 14564 transitions. Second operand  has 5 states, 5 states have (on average 494.8) internal successors, (2474), 5 states have internal predecessors, (2474), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:05:34,383 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:05:34,383 INFO  L93              Difference]: Finished difference Result 15500 states and 25802 transitions.
[2023-12-25 14:05:34,385 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:05:34,388 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 494.8) internal successors, (2474), 5 states have internal predecessors, (2474), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2551
[2023-12-25 14:05:34,391 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:05:34,409 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:05:34,409 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:05:34,423 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:05:34,425 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 14525 mSDsluCounter, 13277 mSDsCounter, 0 mSdLazyCounter, 2627 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14541 SdHoareTripleChecker+Valid, 26533 SdHoareTripleChecker+Invalid, 2628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:05:34,425 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [14541 Valid, 26533 Invalid, 2628 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2627 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2023-12-25 14:05:34,436 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:05:34,547 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:05:34,559 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.6644902634593357) internal successors, (14531), 8730 states have internal predecessors, (14531), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:05:34,573 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14563 transitions.
[2023-12-25 14:05:34,573 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14563 transitions. Word has length 2551
[2023-12-25 14:05:34,575 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:05:34,575 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14563 transitions.
[2023-12-25 14:05:34,576 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 494.8) internal successors, (2474), 5 states have internal predecessors, (2474), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:05:34,576 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14563 transitions.
[2023-12-25 14:05:34,627 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2553
[2023-12-25 14:05:34,627 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:05:34,629 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 14:05:34,629 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-12-25 14:05:34,629 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:05:34,629 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:05:34,630 INFO  L85        PathProgramCache]: Analyzing trace with hash -1383977979, now seen corresponding path program 1 times
[2023-12-25 14:05:34,630 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:05:34,630 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14678763]
[2023-12-25 14:05:34,630 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:05:34,630 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:05:37,773 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:41,058 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:05:41,059 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:41,060 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:05:41,062 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:41,063 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:05:41,063 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:41,064 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:05:41,065 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:41,065 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:05:41,066 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:41,067 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:05:41,067 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:41,068 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:05:41,069 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:41,070 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:05:41,070 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:41,071 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:05:41,072 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:41,073 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:05:41,074 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:41,075 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:05:41,075 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:41,076 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:05:41,077 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:41,078 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:05:41,079 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:41,080 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:05:41,080 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:41,081 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:05:41,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:41,082 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:05:41,083 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:41,090 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:05:41,090 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:05:41,090 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14678763]
[2023-12-25 14:05:41,090 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14678763] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:05:41,090 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:05:41,091 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:05:41,091 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367019659]
[2023-12-25 14:05:41,091 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:05:41,093 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:05:41,093 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:05:41,095 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:05:41,095 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:05:41,096 INFO  L87              Difference]: Start difference. First operand 8748 states and 14563 transitions. Second operand  has 5 states, 5 states have (on average 495.0) internal successors, (2475), 5 states have internal predecessors, (2475), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:05:43,290 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:05:43,290 INFO  L93              Difference]: Finished difference Result 15500 states and 25800 transitions.
[2023-12-25 14:05:43,292 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:05:43,293 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 495.0) internal successors, (2475), 5 states have internal predecessors, (2475), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2552
[2023-12-25 14:05:43,295 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:05:43,309 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:05:43,309 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:05:43,321 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:05:43,322 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 27476 mSDsluCounter, 13258 mSDsCounter, 0 mSdLazyCounter, 2625 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27492 SdHoareTripleChecker+Valid, 26514 SdHoareTripleChecker+Invalid, 2626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:05:43,323 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [27492 Valid, 26514 Invalid, 2626 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2625 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2023-12-25 14:05:43,332 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:05:43,425 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:05:43,437 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.6643757159221078) internal successors, (14530), 8730 states have internal predecessors, (14530), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:05:43,451 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14562 transitions.
[2023-12-25 14:05:43,451 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14562 transitions. Word has length 2552
[2023-12-25 14:05:43,453 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:05:43,453 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14562 transitions.
[2023-12-25 14:05:43,454 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 495.0) internal successors, (2475), 5 states have internal predecessors, (2475), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:05:43,454 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14562 transitions.
[2023-12-25 14:05:43,559 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2554
[2023-12-25 14:05:43,559 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:05:43,560 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 14:05:43,561 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-12-25 14:05:43,561 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:05:43,562 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:05:43,562 INFO  L85        PathProgramCache]: Analyzing trace with hash -1456626155, now seen corresponding path program 1 times
[2023-12-25 14:05:43,562 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:05:43,563 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95037742]
[2023-12-25 14:05:43,563 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:05:43,563 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:05:46,410 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:49,605 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:05:49,607 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:49,608 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:05:49,609 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:49,610 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:05:49,611 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:49,611 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:05:49,612 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:49,613 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:05:49,613 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:49,614 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:05:49,615 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:49,615 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:05:49,616 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:49,617 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:05:49,617 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:49,618 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:05:49,619 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:49,620 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:05:49,620 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:49,621 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:05:49,621 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:49,622 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:05:49,623 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:49,623 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:05:49,624 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:49,625 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:05:49,625 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:49,626 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:05:49,627 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:49,627 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:05:49,628 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:49,633 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:05:49,633 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:05:49,633 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95037742]
[2023-12-25 14:05:49,633 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95037742] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:05:49,633 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:05:49,634 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:05:49,634 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654304027]
[2023-12-25 14:05:49,634 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:05:49,636 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:05:49,636 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:05:49,638 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:05:49,639 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:05:49,639 INFO  L87              Difference]: Start difference. First operand 8748 states and 14562 transitions. Second operand  has 5 states, 5 states have (on average 495.2) internal successors, (2476), 5 states have internal predecessors, (2476), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:05:51,600 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:05:51,600 INFO  L93              Difference]: Finished difference Result 15500 states and 25798 transitions.
[2023-12-25 14:05:51,601 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:05:51,602 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 495.2) internal successors, (2476), 5 states have internal predecessors, (2476), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2553
[2023-12-25 14:05:51,603 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:05:51,617 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:05:51,617 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:05:51,630 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:05:51,631 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 27468 mSDsluCounter, 13258 mSDsCounter, 0 mSdLazyCounter, 2623 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27484 SdHoareTripleChecker+Valid, 26514 SdHoareTripleChecker+Invalid, 2624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2023-12-25 14:05:51,631 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [27484 Valid, 26514 Invalid, 2624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2623 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2023-12-25 14:05:51,641 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:05:51,795 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:05:51,806 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.6642611683848798) internal successors, (14529), 8730 states have internal predecessors, (14529), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:05:51,820 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14561 transitions.
[2023-12-25 14:05:51,821 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14561 transitions. Word has length 2553
[2023-12-25 14:05:51,823 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:05:51,823 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14561 transitions.
[2023-12-25 14:05:51,824 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 495.2) internal successors, (2476), 5 states have internal predecessors, (2476), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:05:51,824 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14561 transitions.
[2023-12-25 14:05:51,873 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2555
[2023-12-25 14:05:51,873 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:05:51,874 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:05:51,875 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-12-25 14:05:51,875 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:05:51,875 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:05:51,876 INFO  L85        PathProgramCache]: Analyzing trace with hash -1013771027, now seen corresponding path program 1 times
[2023-12-25 14:05:51,876 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:05:51,876 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454407364]
[2023-12-25 14:05:51,877 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:05:51,877 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:05:54,730 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:58,130 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:05:58,131 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:58,132 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:05:58,133 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:58,133 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:05:58,134 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:58,135 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:05:58,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:58,136 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:05:58,136 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:58,137 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:05:58,137 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:58,138 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:05:58,138 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:58,139 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:05:58,139 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:58,140 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:05:58,141 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:58,142 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:05:58,142 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:58,143 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:05:58,143 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:58,144 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:05:58,145 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:58,145 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:05:58,146 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:58,147 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:05:58,147 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:58,148 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:05:58,148 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:58,149 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:05:58,150 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:05:58,154 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:05:58,154 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:05:58,154 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454407364]
[2023-12-25 14:05:58,155 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454407364] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:05:58,155 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:05:58,155 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:05:58,155 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647908668]
[2023-12-25 14:05:58,155 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:05:58,158 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:05:58,158 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:05:58,160 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:05:58,160 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:05:58,161 INFO  L87              Difference]: Start difference. First operand 8748 states and 14561 transitions. Second operand  has 5 states, 5 states have (on average 495.4) internal successors, (2477), 5 states have internal predecessors, (2477), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:06:00,352 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:06:00,353 INFO  L93              Difference]: Finished difference Result 15500 states and 25796 transitions.
[2023-12-25 14:06:00,353 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:06:00,354 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 495.4) internal successors, (2477), 5 states have internal predecessors, (2477), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2554
[2023-12-25 14:06:00,357 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:06:00,399 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:06:00,399 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:06:00,414 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:06:00,432 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 27460 mSDsluCounter, 13258 mSDsCounter, 0 mSdLazyCounter, 2621 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27476 SdHoareTripleChecker+Valid, 26514 SdHoareTripleChecker+Invalid, 2622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:06:00,433 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [27476 Valid, 26514 Invalid, 2622 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2621 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2023-12-25 14:06:00,442 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:06:00,638 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:06:00,666 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.6641466208476519) internal successors, (14528), 8730 states have internal predecessors, (14528), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:06:00,682 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14560 transitions.
[2023-12-25 14:06:00,683 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14560 transitions. Word has length 2554
[2023-12-25 14:06:00,684 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:06:00,684 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14560 transitions.
[2023-12-25 14:06:00,685 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 495.4) internal successors, (2477), 5 states have internal predecessors, (2477), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:06:00,685 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14560 transitions.
[2023-12-25 14:06:00,738 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2556
[2023-12-25 14:06:00,739 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:06:00,740 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:06:00,740 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-12-25 14:06:00,741 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:06:00,741 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:06:00,742 INFO  L85        PathProgramCache]: Analyzing trace with hash 700148089, now seen corresponding path program 1 times
[2023-12-25 14:06:00,742 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:06:00,742 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149060631]
[2023-12-25 14:06:00,742 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:06:00,742 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:06:05,194 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:08,552 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:06:08,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:08,555 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:06:08,555 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:08,556 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:06:08,556 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:08,557 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:06:08,558 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:08,559 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:06:08,559 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:08,560 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:06:08,561 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:08,562 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:06:08,562 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:08,563 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:06:08,563 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:08,564 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:06:08,565 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:08,565 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:06:08,566 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:08,567 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:06:08,567 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:08,568 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:06:08,569 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:08,570 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:06:08,570 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:08,571 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:06:08,571 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:08,572 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:06:08,573 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:08,574 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:06:08,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:08,579 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:06:08,579 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:06:08,579 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149060631]
[2023-12-25 14:06:08,579 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149060631] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:06:08,579 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:06:08,579 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:06:08,580 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742537482]
[2023-12-25 14:06:08,580 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:06:08,582 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:06:08,582 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:06:08,585 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:06:08,585 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:06:08,585 INFO  L87              Difference]: Start difference. First operand 8748 states and 14560 transitions. Second operand  has 5 states, 5 states have (on average 495.6) internal successors, (2478), 5 states have internal predecessors, (2478), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:06:10,601 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:06:10,601 INFO  L93              Difference]: Finished difference Result 15500 states and 25794 transitions.
[2023-12-25 14:06:10,601 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:06:10,602 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 495.6) internal successors, (2478), 5 states have internal predecessors, (2478), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2555
[2023-12-25 14:06:10,603 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:06:10,616 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:06:10,616 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:06:10,628 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:06:10,628 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 14509 mSDsluCounter, 13277 mSDsCounter, 0 mSdLazyCounter, 2619 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14525 SdHoareTripleChecker+Valid, 26533 SdHoareTripleChecker+Invalid, 2620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2023-12-25 14:06:10,628 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [14525 Valid, 26533 Invalid, 2620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2619 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2023-12-25 14:06:10,639 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:06:10,722 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:06:10,733 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.664032073310424) internal successors, (14527), 8730 states have internal predecessors, (14527), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:06:10,746 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14559 transitions.
[2023-12-25 14:06:10,747 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14559 transitions. Word has length 2555
[2023-12-25 14:06:10,748 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:06:10,748 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14559 transitions.
[2023-12-25 14:06:10,749 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 495.6) internal successors, (2478), 5 states have internal predecessors, (2478), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:06:10,749 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14559 transitions.
[2023-12-25 14:06:10,800 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2557
[2023-12-25 14:06:10,800 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:06:10,801 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 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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]
[2023-12-25 14:06:10,802 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-12-25 14:06:10,802 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:06:10,802 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:06:10,803 INFO  L85        PathProgramCache]: Analyzing trace with hash -197029805, now seen corresponding path program 1 times
[2023-12-25 14:06:10,803 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:06:10,803 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149174864]
[2023-12-25 14:06:10,803 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:06:10,803 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:06:13,548 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:16,652 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:06:16,653 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:16,655 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:06:16,655 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:16,656 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:06:16,656 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:16,657 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:06:16,657 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:16,658 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:06:16,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:16,660 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:06:16,660 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:16,661 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:06:16,661 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:16,662 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:06:16,662 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:16,663 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:06:16,664 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:16,665 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:06:16,665 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:16,666 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:06:16,666 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:16,667 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:06:16,668 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:16,668 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:06:16,669 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:16,670 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:06:16,670 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:16,671 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:06:16,671 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:16,672 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:06:16,673 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:16,677 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:06:16,678 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:06:16,678 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149174864]
[2023-12-25 14:06:16,678 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149174864] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:06:16,678 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:06:16,678 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:06:16,678 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439211626]
[2023-12-25 14:06:16,678 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:06:16,681 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:06:16,681 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:06:16,683 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:06:16,683 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:06:16,683 INFO  L87              Difference]: Start difference. First operand 8748 states and 14559 transitions. Second operand  has 5 states, 5 states have (on average 495.8) internal successors, (2479), 5 states have internal predecessors, (2479), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:06:18,676 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:06:18,676 INFO  L93              Difference]: Finished difference Result 15500 states and 25792 transitions.
[2023-12-25 14:06:18,676 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:06:18,677 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 495.8) internal successors, (2479), 5 states have internal predecessors, (2479), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2556
[2023-12-25 14:06:18,678 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:06:18,685 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:06:18,685 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:06:18,691 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:06:18,691 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 27444 mSDsluCounter, 13258 mSDsCounter, 0 mSdLazyCounter, 2617 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27460 SdHoareTripleChecker+Valid, 26514 SdHoareTripleChecker+Invalid, 2618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2023-12-25 14:06:18,692 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [27460 Valid, 26514 Invalid, 2618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2617 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2023-12-25 14:06:18,700 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:06:18,777 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:06:18,787 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.663917525773196) internal successors, (14526), 8730 states have internal predecessors, (14526), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:06:18,800 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14558 transitions.
[2023-12-25 14:06:18,800 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14558 transitions. Word has length 2556
[2023-12-25 14:06:18,802 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:06:18,802 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14558 transitions.
[2023-12-25 14:06:18,802 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 495.8) internal successors, (2479), 5 states have internal predecessors, (2479), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:06:18,802 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14558 transitions.
[2023-12-25 14:06:18,850 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2558
[2023-12-25 14:06:18,850 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:06:18,852 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 14:06:18,852 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-12-25 14:06:18,852 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:06:18,853 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:06:18,853 INFO  L85        PathProgramCache]: Analyzing trace with hash -1312722913, now seen corresponding path program 1 times
[2023-12-25 14:06:18,853 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:06:18,853 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986018265]
[2023-12-25 14:06:18,854 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:06:18,854 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:06:21,615 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:24,835 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:06:24,836 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:24,837 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:06:24,837 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:24,837 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:06:24,838 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:24,838 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:06:24,839 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:24,839 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:06:24,840 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:24,840 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:06:24,841 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:24,841 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:06:24,842 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:24,843 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:06:24,843 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:24,844 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:06:24,844 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:24,845 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:06:24,846 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:24,846 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:06:24,847 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:24,848 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:06:24,848 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:24,849 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:06:24,849 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:24,850 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:06:24,851 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:24,851 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:06:24,852 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:24,853 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:06:24,853 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:24,858 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:06:24,858 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:06:24,858 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986018265]
[2023-12-25 14:06:24,858 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986018265] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:06:24,858 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:06:24,859 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:06:24,859 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607920831]
[2023-12-25 14:06:24,859 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:06:24,861 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:06:24,861 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:06:24,863 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:06:24,863 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:06:24,864 INFO  L87              Difference]: Start difference. First operand 8748 states and 14558 transitions. Second operand  has 5 states, 5 states have (on average 496.0) internal successors, (2480), 5 states have internal predecessors, (2480), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:06:26,808 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:06:26,809 INFO  L93              Difference]: Finished difference Result 15500 states and 25790 transitions.
[2023-12-25 14:06:26,809 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:06:26,810 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 496.0) internal successors, (2480), 5 states have internal predecessors, (2480), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2557
[2023-12-25 14:06:26,811 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:06:26,819 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:06:26,819 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:06:26,825 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:06:26,825 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 27436 mSDsluCounter, 13258 mSDsCounter, 0 mSdLazyCounter, 2615 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27452 SdHoareTripleChecker+Valid, 26514 SdHoareTripleChecker+Invalid, 2616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2023-12-25 14:06:26,826 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [27452 Valid, 26514 Invalid, 2616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2615 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2023-12-25 14:06:26,834 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:06:26,914 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:06:26,922 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.663802978235968) internal successors, (14525), 8730 states have internal predecessors, (14525), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:06:26,933 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14557 transitions.
[2023-12-25 14:06:26,934 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14557 transitions. Word has length 2557
[2023-12-25 14:06:26,935 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:06:26,935 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14557 transitions.
[2023-12-25 14:06:26,936 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 496.0) internal successors, (2480), 5 states have internal predecessors, (2480), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:06:26,936 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14557 transitions.
[2023-12-25 14:06:27,030 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2559
[2023-12-25 14:06:27,031 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:06:27,032 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 14:06:27,032 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-12-25 14:06:27,032 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:06:27,033 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:06:27,034 INFO  L85        PathProgramCache]: Analyzing trace with hash -473392965, now seen corresponding path program 1 times
[2023-12-25 14:06:27,034 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:06:27,034 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753607465]
[2023-12-25 14:06:27,034 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:06:27,035 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:06:30,442 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:33,487 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:06:33,488 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:33,489 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:06:33,489 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:33,490 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:06:33,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:33,491 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:06:33,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:33,492 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:06:33,493 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:33,493 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:06:33,494 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:33,495 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:06:33,495 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:33,496 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:06:33,496 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:33,497 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:06:33,498 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:33,498 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:06:33,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:33,500 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:06:33,500 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:33,501 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:06:33,501 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:33,502 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:06:33,503 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:33,504 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:06:33,504 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:33,505 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:06:33,505 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:33,506 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:06:33,507 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:33,510 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:06:33,510 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:06:33,510 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753607465]
[2023-12-25 14:06:33,510 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753607465] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:06:33,510 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:06:33,511 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:06:33,511 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351795976]
[2023-12-25 14:06:33,511 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:06:33,513 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:06:33,513 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:06:33,515 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:06:33,515 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:06:33,515 INFO  L87              Difference]: Start difference. First operand 8748 states and 14557 transitions. Second operand  has 5 states, 5 states have (on average 496.2) internal successors, (2481), 5 states have internal predecessors, (2481), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:06:35,542 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:06:35,542 INFO  L93              Difference]: Finished difference Result 15500 states and 25788 transitions.
[2023-12-25 14:06:35,542 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:06:35,543 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 496.2) internal successors, (2481), 5 states have internal predecessors, (2481), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2558
[2023-12-25 14:06:35,544 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:06:35,553 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:06:35,553 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:06:35,561 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:06:35,562 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 27428 mSDsluCounter, 13258 mSDsCounter, 0 mSdLazyCounter, 2613 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27444 SdHoareTripleChecker+Valid, 26514 SdHoareTripleChecker+Invalid, 2614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2023-12-25 14:06:35,562 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [27444 Valid, 26514 Invalid, 2614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2613 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2023-12-25 14:06:35,573 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:06:35,740 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:06:35,754 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.66368843069874) internal successors, (14524), 8730 states have internal predecessors, (14524), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:06:35,768 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14556 transitions.
[2023-12-25 14:06:35,768 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14556 transitions. Word has length 2558
[2023-12-25 14:06:35,770 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:06:35,770 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14556 transitions.
[2023-12-25 14:06:35,770 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 496.2) internal successors, (2481), 5 states have internal predecessors, (2481), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:06:35,771 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14556 transitions.
[2023-12-25 14:06:35,818 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2560
[2023-12-25 14:06:35,818 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:06:35,820 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 14:06:35,820 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-12-25 14:06:35,820 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:06:35,821 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:06:35,821 INFO  L85        PathProgramCache]: Analyzing trace with hash 1058476035, now seen corresponding path program 1 times
[2023-12-25 14:06:35,822 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:06:35,822 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250672926]
[2023-12-25 14:06:35,822 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:06:35,822 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:06:39,251 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:42,423 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:06:42,424 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:42,425 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:06:42,426 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:42,426 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:06:42,427 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:42,427 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:06:42,427 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:42,428 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:06:42,429 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:42,429 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:06:42,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:42,430 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:06:42,431 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:42,432 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:06:42,432 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:42,433 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:06:42,434 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:42,434 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:06:42,435 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:42,436 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:06:42,436 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:42,437 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:06:42,437 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:42,438 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:06:42,438 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:42,439 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:06:42,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:42,441 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:06:42,441 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:42,442 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:06:42,442 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:42,446 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:06:42,447 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:06:42,447 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250672926]
[2023-12-25 14:06:42,447 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250672926] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:06:42,447 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:06:42,447 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:06:42,447 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689218761]
[2023-12-25 14:06:42,447 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:06:42,449 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:06:42,450 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:06:42,451 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:06:42,452 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:06:42,452 INFO  L87              Difference]: Start difference. First operand 8748 states and 14556 transitions. Second operand  has 5 states, 5 states have (on average 496.4) internal successors, (2482), 5 states have internal predecessors, (2482), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:06:44,418 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:06:44,418 INFO  L93              Difference]: Finished difference Result 15500 states and 25786 transitions.
[2023-12-25 14:06:44,419 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:06:44,419 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 496.4) internal successors, (2482), 5 states have internal predecessors, (2482), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2559
[2023-12-25 14:06:44,421 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:06:44,426 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:06:44,426 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:06:44,430 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:06:44,430 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 27420 mSDsluCounter, 13258 mSDsCounter, 0 mSdLazyCounter, 2611 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27436 SdHoareTripleChecker+Valid, 26514 SdHoareTripleChecker+Invalid, 2612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2023-12-25 14:06:44,430 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [27436 Valid, 26514 Invalid, 2612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2611 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2023-12-25 14:06:44,436 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:06:44,504 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:06:44,512 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.6635738831615121) internal successors, (14523), 8730 states have internal predecessors, (14523), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:06:44,524 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14555 transitions.
[2023-12-25 14:06:44,525 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14555 transitions. Word has length 2559
[2023-12-25 14:06:44,526 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:06:44,526 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14555 transitions.
[2023-12-25 14:06:44,527 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 496.4) internal successors, (2482), 5 states have internal predecessors, (2482), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:06:44,527 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14555 transitions.
[2023-12-25 14:06:44,575 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2561
[2023-12-25 14:06:44,575 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:06:44,576 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 14:06:44,576 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-12-25 14:06:44,577 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:06:44,577 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:06:44,577 INFO  L85        PathProgramCache]: Analyzing trace with hash -1436634719, now seen corresponding path program 1 times
[2023-12-25 14:06:44,577 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:06:44,577 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649711263]
[2023-12-25 14:06:44,578 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:06:44,578 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:06:47,961 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:51,805 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:06:51,806 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:51,808 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:06:51,808 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:51,809 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:06:51,809 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:51,810 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:06:51,810 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:51,811 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:06:51,811 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:51,812 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:06:51,813 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:51,813 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:06:51,814 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:51,815 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:06:51,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:51,816 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:06:51,816 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:51,817 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:06:51,818 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:51,818 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:06:51,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:51,820 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:06:51,820 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:51,821 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:06:51,821 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:51,822 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:06:51,822 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:51,823 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:06:51,823 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:51,824 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:06:51,824 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:06:51,827 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:06:51,828 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:06:51,828 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649711263]
[2023-12-25 14:06:51,828 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649711263] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:06:51,828 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:06:51,828 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:06:51,828 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944732106]
[2023-12-25 14:06:51,828 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:06:51,830 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:06:51,830 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:06:51,831 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:06:51,832 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:06:51,832 INFO  L87              Difference]: Start difference. First operand 8748 states and 14555 transitions. Second operand  has 5 states, 5 states have (on average 496.6) internal successors, (2483), 5 states have internal predecessors, (2483), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:06:53,916 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:06:53,916 INFO  L93              Difference]: Finished difference Result 15500 states and 25784 transitions.
[2023-12-25 14:06:53,917 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:06:53,918 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 496.6) internal successors, (2483), 5 states have internal predecessors, (2483), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2560
[2023-12-25 14:06:53,919 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:06:53,925 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:06:53,925 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:06:53,930 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:06:53,930 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 27412 mSDsluCounter, 13258 mSDsCounter, 0 mSdLazyCounter, 2609 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27428 SdHoareTripleChecker+Valid, 26514 SdHoareTripleChecker+Invalid, 2610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2023-12-25 14:06:53,931 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [27428 Valid, 26514 Invalid, 2610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2609 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2023-12-25 14:06:53,937 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:06:54,003 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:06:54,013 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.6634593356242842) internal successors, (14522), 8730 states have internal predecessors, (14522), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:06:54,025 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14554 transitions.
[2023-12-25 14:06:54,025 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14554 transitions. Word has length 2560
[2023-12-25 14:06:54,027 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:06:54,027 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14554 transitions.
[2023-12-25 14:06:54,028 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 496.6) internal successors, (2483), 5 states have internal predecessors, (2483), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:06:54,028 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14554 transitions.
[2023-12-25 14:06:54,075 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2562
[2023-12-25 14:06:54,075 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:06:54,077 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:06:54,077 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-12-25 14:06:54,077 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:06:54,077 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:06:54,078 INFO  L85        PathProgramCache]: Analyzing trace with hash 747189545, now seen corresponding path program 1 times
[2023-12-25 14:06:54,078 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:06:54,078 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785002256]
[2023-12-25 14:06:54,078 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:06:54,079 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:06:57,484 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:00,691 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:07:00,692 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:00,693 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:07:00,693 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:00,694 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:07:00,694 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:00,695 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:07:00,695 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:00,696 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:07:00,697 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:00,698 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:07:00,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:00,699 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:07:00,699 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:00,700 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:07:00,701 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:00,702 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:07:00,702 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:00,703 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:07:00,703 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:00,705 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:07:00,705 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:00,706 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:07:00,707 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:00,707 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:07:00,708 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:00,709 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:07:00,709 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:00,710 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:07:00,711 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:00,712 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:07:00,712 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:00,717 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:07:00,717 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:07:00,717 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785002256]
[2023-12-25 14:07:00,717 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785002256] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:07:00,717 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:07:00,717 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:07:00,718 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071377725]
[2023-12-25 14:07:00,718 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:07:00,720 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:07:00,720 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:07:00,722 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:07:00,722 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:07:00,723 INFO  L87              Difference]: Start difference. First operand 8748 states and 14554 transitions. Second operand  has 5 states, 5 states have (on average 496.8) internal successors, (2484), 5 states have internal predecessors, (2484), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:07:02,824 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:07:02,825 INFO  L93              Difference]: Finished difference Result 15500 states and 25782 transitions.
[2023-12-25 14:07:02,825 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:07:02,826 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 496.8) internal successors, (2484), 5 states have internal predecessors, (2484), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2561
[2023-12-25 14:07:02,827 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:07:02,834 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:07:02,834 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:07:02,839 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:07:02,840 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 27404 mSDsluCounter, 13258 mSDsCounter, 0 mSdLazyCounter, 2607 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27420 SdHoareTripleChecker+Valid, 26514 SdHoareTripleChecker+Invalid, 2608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2023-12-25 14:07:02,840 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [27420 Valid, 26514 Invalid, 2608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2607 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2023-12-25 14:07:02,849 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:07:02,913 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:07:02,922 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.6633447880870562) internal successors, (14521), 8730 states have internal predecessors, (14521), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:07:02,932 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14553 transitions.
[2023-12-25 14:07:02,932 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14553 transitions. Word has length 2561
[2023-12-25 14:07:02,933 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:07:02,933 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14553 transitions.
[2023-12-25 14:07:02,934 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 496.8) internal successors, (2484), 5 states have internal predecessors, (2484), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:07:02,934 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14553 transitions.
[2023-12-25 14:07:02,981 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2563
[2023-12-25 14:07:02,981 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:07:02,982 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:07:02,982 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2023-12-25 14:07:02,983 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:07:02,983 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:07:02,984 INFO  L85        PathProgramCache]: Analyzing trace with hash 1644927369, now seen corresponding path program 1 times
[2023-12-25 14:07:02,984 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:07:02,984 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224604673]
[2023-12-25 14:07:02,984 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:07:02,984 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:07:06,167 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:09,302 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:07:09,304 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:09,305 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:07:09,305 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:09,306 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:07:09,306 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:09,307 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:07:09,307 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:09,308 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:07:09,308 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:09,309 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:07:09,309 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:09,310 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:07:09,310 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:09,310 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:07:09,311 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:09,311 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:07:09,312 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:09,312 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:07:09,312 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:09,313 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:07:09,313 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:09,314 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:07:09,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:09,315 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:07:09,315 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:09,316 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:07:09,316 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:09,316 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:07:09,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:09,317 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:07:09,318 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:09,321 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:07:09,321 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:07:09,321 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224604673]
[2023-12-25 14:07:09,322 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224604673] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:07:09,322 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:07:09,322 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:07:09,322 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169731077]
[2023-12-25 14:07:09,322 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:07:09,324 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:07:09,324 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:07:09,326 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:07:09,326 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:07:09,326 INFO  L87              Difference]: Start difference. First operand 8748 states and 14553 transitions. Second operand  has 5 states, 5 states have (on average 497.0) internal successors, (2485), 5 states have internal predecessors, (2485), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:07:11,354 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:07:11,354 INFO  L93              Difference]: Finished difference Result 15500 states and 25780 transitions.
[2023-12-25 14:07:11,354 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:07:11,355 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 497.0) internal successors, (2485), 5 states have internal predecessors, (2485), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2562
[2023-12-25 14:07:11,356 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:07:11,364 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:07:11,364 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:07:11,370 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:07:11,371 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 14481 mSDsluCounter, 13277 mSDsCounter, 0 mSdLazyCounter, 2605 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14497 SdHoareTripleChecker+Valid, 26533 SdHoareTripleChecker+Invalid, 2606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2023-12-25 14:07:11,371 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [14497 Valid, 26533 Invalid, 2606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2605 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2023-12-25 14:07:11,379 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:07:11,440 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:07:11,448 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.6632302405498283) internal successors, (14520), 8730 states have internal predecessors, (14520), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:07:11,457 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14552 transitions.
[2023-12-25 14:07:11,457 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14552 transitions. Word has length 2562
[2023-12-25 14:07:11,458 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:07:11,459 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14552 transitions.
[2023-12-25 14:07:11,459 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 497.0) internal successors, (2485), 5 states have internal predecessors, (2485), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:07:11,459 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14552 transitions.
[2023-12-25 14:07:11,501 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2564
[2023-12-25 14:07:11,502 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:07:11,503 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1]
[2023-12-25 14:07:11,503 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2023-12-25 14:07:11,503 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:07:11,503 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:07:11,504 INFO  L85        PathProgramCache]: Analyzing trace with hash 515568013, now seen corresponding path program 1 times
[2023-12-25 14:07:11,504 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:07:11,504 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280177661]
[2023-12-25 14:07:11,504 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:07:11,505 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:07:15,780 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:18,825 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:07:18,826 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:18,827 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:07:18,828 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:18,828 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:07:18,829 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:18,830 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:07:18,830 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:18,831 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:07:18,831 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:18,832 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:07:18,832 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:18,833 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:07:18,834 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:18,834 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:07:18,835 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:18,835 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:07:18,836 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:18,837 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:07:18,837 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:18,838 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:07:18,838 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:18,839 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:07:18,839 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:18,840 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:07:18,840 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:18,841 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:07:18,842 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:18,842 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:07:18,843 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:18,844 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:07:18,844 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:18,848 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:07:18,848 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:07:18,849 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280177661]
[2023-12-25 14:07:18,849 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280177661] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:07:18,849 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:07:18,849 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:07:18,849 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254321830]
[2023-12-25 14:07:18,849 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:07:18,851 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:07:18,851 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:07:18,853 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:07:18,854 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:07:18,854 INFO  L87              Difference]: Start difference. First operand 8748 states and 14552 transitions. Second operand  has 5 states, 5 states have (on average 497.2) internal successors, (2486), 5 states have internal predecessors, (2486), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:07:20,811 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:07:20,812 INFO  L93              Difference]: Finished difference Result 15500 states and 25778 transitions.
[2023-12-25 14:07:20,812 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:07:20,813 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 497.2) internal successors, (2486), 5 states have internal predecessors, (2486), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2563
[2023-12-25 14:07:20,814 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:07:20,821 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:07:20,821 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:07:20,826 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:07:20,826 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 14477 mSDsluCounter, 13277 mSDsCounter, 0 mSdLazyCounter, 2603 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14493 SdHoareTripleChecker+Valid, 26533 SdHoareTripleChecker+Invalid, 2604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2023-12-25 14:07:20,827 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [14493 Valid, 26533 Invalid, 2604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2603 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2023-12-25 14:07:20,836 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:07:20,887 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:07:20,893 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.6631156930126003) internal successors, (14519), 8730 states have internal predecessors, (14519), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:07:20,900 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14551 transitions.
[2023-12-25 14:07:20,901 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14551 transitions. Word has length 2563
[2023-12-25 14:07:20,902 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:07:20,902 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14551 transitions.
[2023-12-25 14:07:20,902 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 497.2) internal successors, (2486), 5 states have internal predecessors, (2486), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:07:20,903 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14551 transitions.
[2023-12-25 14:07:20,982 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2565
[2023-12-25 14:07:20,982 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:07:20,983 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 14:07:20,983 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2023-12-25 14:07:20,984 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:07:20,984 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:07:20,985 INFO  L85        PathProgramCache]: Analyzing trace with hash 1753681903, now seen corresponding path program 1 times
[2023-12-25 14:07:20,985 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:07:20,985 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193970787]
[2023-12-25 14:07:20,986 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:07:20,986 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:07:23,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:27,051 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:07:27,051 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:27,052 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:07:27,053 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:27,053 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:07:27,053 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:27,054 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:07:27,055 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:27,055 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:07:27,056 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:27,057 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:07:27,057 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:27,058 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:07:27,058 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:27,059 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:07:27,059 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:27,060 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:07:27,060 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:27,060 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:07:27,061 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:27,061 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:07:27,062 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:27,062 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:07:27,063 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:27,064 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:07:27,064 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:27,065 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:07:27,065 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:27,066 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:07:27,067 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:27,068 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:07:27,068 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:27,072 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:07:27,072 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:07:27,073 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193970787]
[2023-12-25 14:07:27,073 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193970787] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:07:27,073 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:07:27,073 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:07:27,073 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920330755]
[2023-12-25 14:07:27,073 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:07:27,075 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:07:27,075 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:07:27,077 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:07:27,078 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:07:27,078 INFO  L87              Difference]: Start difference. First operand 8748 states and 14551 transitions. Second operand  has 5 states, 5 states have (on average 497.4) internal successors, (2487), 5 states have internal predecessors, (2487), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:07:29,076 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:07:29,076 INFO  L93              Difference]: Finished difference Result 15500 states and 25776 transitions.
[2023-12-25 14:07:29,076 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:07:29,077 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 497.4) internal successors, (2487), 5 states have internal predecessors, (2487), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2564
[2023-12-25 14:07:29,078 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:07:29,086 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:07:29,086 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:07:29,091 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:07:29,092 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 14473 mSDsluCounter, 13277 mSDsCounter, 0 mSdLazyCounter, 2601 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14489 SdHoareTripleChecker+Valid, 26533 SdHoareTripleChecker+Invalid, 2602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2023-12-25 14:07:29,092 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [14489 Valid, 26533 Invalid, 2602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2601 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2023-12-25 14:07:29,098 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:07:29,165 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:07:29,174 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.6630011454753724) internal successors, (14518), 8730 states have internal predecessors, (14518), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:07:29,183 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14550 transitions.
[2023-12-25 14:07:29,183 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14550 transitions. Word has length 2564
[2023-12-25 14:07:29,184 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:07:29,184 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14550 transitions.
[2023-12-25 14:07:29,185 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 497.4) internal successors, (2487), 5 states have internal predecessors, (2487), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:07:29,185 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14550 transitions.
[2023-12-25 14:07:29,225 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2566
[2023-12-25 14:07:29,225 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:07:29,226 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 14:07:29,226 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2023-12-25 14:07:29,226 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:07:29,226 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:07:29,227 INFO  L85        PathProgramCache]: Analyzing trace with hash -1105234637, now seen corresponding path program 1 times
[2023-12-25 14:07:29,227 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:07:29,227 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580069116]
[2023-12-25 14:07:29,227 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:07:29,227 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:07:32,788 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:36,979 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:07:36,981 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:36,982 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:07:36,982 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:36,983 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:07:36,984 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:36,984 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:07:36,985 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:36,986 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:07:36,986 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:36,992 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:07:36,993 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:36,994 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:07:36,994 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:36,995 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:07:36,995 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:36,996 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:07:36,997 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:36,998 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:07:36,998 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:36,999 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:07:36,999 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:37,000 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:07:37,001 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:37,001 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:07:37,002 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:37,003 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:07:37,003 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:37,004 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:07:37,004 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:37,005 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:07:37,006 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:37,011 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:07:37,012 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:07:37,012 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580069116]
[2023-12-25 14:07:37,012 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580069116] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:07:37,012 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:07:37,013 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:07:37,013 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743163212]
[2023-12-25 14:07:37,013 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:07:37,016 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:07:37,016 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:07:37,019 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:07:37,019 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:07:37,019 INFO  L87              Difference]: Start difference. First operand 8748 states and 14550 transitions. Second operand  has 5 states, 5 states have (on average 497.6) internal successors, (2488), 5 states have internal predecessors, (2488), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:07:39,375 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:07:39,376 INFO  L93              Difference]: Finished difference Result 15500 states and 25774 transitions.
[2023-12-25 14:07:39,376 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:07:39,377 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 497.6) internal successors, (2488), 5 states have internal predecessors, (2488), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2565
[2023-12-25 14:07:39,377 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:07:39,384 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:07:39,384 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:07:39,389 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:07:39,389 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 14469 mSDsluCounter, 13277 mSDsCounter, 0 mSdLazyCounter, 2599 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14485 SdHoareTripleChecker+Valid, 26533 SdHoareTripleChecker+Invalid, 2600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2023-12-25 14:07:39,389 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [14485 Valid, 26533 Invalid, 2600 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2599 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2023-12-25 14:07:39,396 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:07:39,456 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:07:39,464 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.6628865979381444) internal successors, (14517), 8730 states have internal predecessors, (14517), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:07:39,474 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14549 transitions.
[2023-12-25 14:07:39,475 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14549 transitions. Word has length 2565
[2023-12-25 14:07:39,476 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:07:39,476 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14549 transitions.
[2023-12-25 14:07:39,477 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 497.6) internal successors, (2488), 5 states have internal predecessors, (2488), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:07:39,477 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14549 transitions.
[2023-12-25 14:07:39,521 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2567
[2023-12-25 14:07:39,522 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:07:39,523 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:07:39,523 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2023-12-25 14:07:39,523 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:07:39,523 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:07:39,581 INFO  L85        PathProgramCache]: Analyzing trace with hash -1129736361, now seen corresponding path program 1 times
[2023-12-25 14:07:39,582 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:07:39,582 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831005635]
[2023-12-25 14:07:39,582 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:07:39,582 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:07:42,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:45,713 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:07:45,714 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:45,716 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:07:45,716 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:45,717 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:07:45,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:45,718 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:07:45,719 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:45,719 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:07:45,720 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:45,720 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:07:45,721 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:45,722 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:07:45,722 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:45,723 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:07:45,723 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:45,724 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:07:45,724 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:45,725 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:07:45,726 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:45,726 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:07:45,727 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:45,727 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:07:45,728 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:45,729 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:07:45,729 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:45,730 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:07:45,730 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:45,731 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:07:45,731 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:45,732 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:07:45,732 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:45,737 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:07:45,737 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:07:45,737 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831005635]
[2023-12-25 14:07:45,737 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831005635] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:07:45,737 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:07:45,737 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:07:45,737 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921613866]
[2023-12-25 14:07:45,737 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:07:45,739 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:07:45,740 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:07:45,741 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:07:45,742 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:07:45,742 INFO  L87              Difference]: Start difference. First operand 8748 states and 14549 transitions. Second operand  has 5 states, 5 states have (on average 497.8) internal successors, (2489), 5 states have internal predecessors, (2489), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:07:47,730 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:07:47,731 INFO  L93              Difference]: Finished difference Result 15500 states and 25772 transitions.
[2023-12-25 14:07:47,731 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:07:47,731 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 497.8) internal successors, (2489), 5 states have internal predecessors, (2489), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2566
[2023-12-25 14:07:47,732 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:07:47,739 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:07:47,739 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:07:47,743 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:07:47,745 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 27364 mSDsluCounter, 13258 mSDsCounter, 0 mSdLazyCounter, 2597 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27380 SdHoareTripleChecker+Valid, 26514 SdHoareTripleChecker+Invalid, 2598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2023-12-25 14:07:47,745 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [27380 Valid, 26514 Invalid, 2598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2597 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2023-12-25 14:07:47,752 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:07:47,812 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:07:47,818 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.6627720504009165) internal successors, (14516), 8730 states have internal predecessors, (14516), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:07:47,826 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14548 transitions.
[2023-12-25 14:07:47,827 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14548 transitions. Word has length 2566
[2023-12-25 14:07:47,828 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:07:47,828 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14548 transitions.
[2023-12-25 14:07:47,828 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 497.8) internal successors, (2489), 5 states have internal predecessors, (2489), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:07:47,828 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14548 transitions.
[2023-12-25 14:07:47,867 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2568
[2023-12-25 14:07:47,867 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:07:47,868 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:07:47,868 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2023-12-25 14:07:47,868 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:07:47,868 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:07:47,869 INFO  L85        PathProgramCache]: Analyzing trace with hash -945713641, now seen corresponding path program 1 times
[2023-12-25 14:07:47,869 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:07:47,869 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221007153]
[2023-12-25 14:07:47,869 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:07:47,869 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:07:51,636 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:55,113 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:07:55,113 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:55,114 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:07:55,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:55,115 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:07:55,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:55,116 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:07:55,116 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:55,117 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:07:55,117 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:55,118 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:07:55,118 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:55,119 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:07:55,119 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:55,120 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:07:55,120 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:55,121 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:07:55,121 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:55,122 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:07:55,122 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:55,123 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:07:55,123 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:55,123 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:07:55,124 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:55,125 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:07:55,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:55,126 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:07:55,126 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:55,127 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:07:55,128 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:55,128 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:07:55,129 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:07:55,133 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:07:55,133 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:07:55,133 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221007153]
[2023-12-25 14:07:55,134 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221007153] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:07:55,134 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:07:55,134 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:07:55,134 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793845524]
[2023-12-25 14:07:55,134 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:07:55,136 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:07:55,136 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:07:55,138 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:07:55,138 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:07:55,139 INFO  L87              Difference]: Start difference. First operand 8748 states and 14548 transitions. Second operand  has 5 states, 5 states have (on average 498.0) internal successors, (2490), 5 states have internal predecessors, (2490), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:07:57,117 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:07:57,117 INFO  L93              Difference]: Finished difference Result 15500 states and 25770 transitions.
[2023-12-25 14:07:57,117 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:07:57,118 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 498.0) internal successors, (2490), 5 states have internal predecessors, (2490), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2567
[2023-12-25 14:07:57,119 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:07:57,127 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:07:57,128 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:07:57,133 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:07:57,134 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 27356 mSDsluCounter, 13258 mSDsCounter, 0 mSdLazyCounter, 2595 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27372 SdHoareTripleChecker+Valid, 26514 SdHoareTripleChecker+Invalid, 2596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2023-12-25 14:07:57,134 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [27372 Valid, 26514 Invalid, 2596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2595 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2023-12-25 14:07:57,142 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:07:57,203 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:07:57,212 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.6626575028636885) internal successors, (14515), 8730 states have internal predecessors, (14515), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:07:57,223 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14547 transitions.
[2023-12-25 14:07:57,224 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14547 transitions. Word has length 2567
[2023-12-25 14:07:57,225 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:07:57,225 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14547 transitions.
[2023-12-25 14:07:57,226 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 498.0) internal successors, (2490), 5 states have internal predecessors, (2490), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:07:57,226 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14547 transitions.
[2023-12-25 14:07:57,264 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2569
[2023-12-25 14:07:57,264 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:07:57,265 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:07:57,265 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2023-12-25 14:07:57,265 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:07:57,266 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:07:57,266 INFO  L85        PathProgramCache]: Analyzing trace with hash -928502979, now seen corresponding path program 1 times
[2023-12-25 14:07:57,266 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:07:57,266 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505624282]
[2023-12-25 14:07:57,266 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:07:57,266 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:08:00,565 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:03,743 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:08:03,745 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:03,747 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:08:03,748 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:03,748 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:08:03,749 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:03,750 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:08:03,750 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:03,755 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:08:03,756 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:03,756 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:08:03,757 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:03,757 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:08:03,758 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:03,759 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:08:03,759 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:03,760 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:08:03,760 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:03,761 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:08:03,761 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:03,762 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:08:03,762 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:03,763 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:08:03,763 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:03,764 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:08:03,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:03,765 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:08:03,765 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:03,766 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:08:03,766 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:03,767 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:08:03,768 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:03,773 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:08:03,774 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:08:03,774 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505624282]
[2023-12-25 14:08:03,774 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505624282] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:08:03,774 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:08:03,774 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:08:03,774 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028345452]
[2023-12-25 14:08:03,775 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:08:03,777 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:08:03,777 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:08:03,779 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:08:03,779 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:08:03,779 INFO  L87              Difference]: Start difference. First operand 8748 states and 14547 transitions. Second operand  has 5 states, 5 states have (on average 498.2) internal successors, (2491), 5 states have internal predecessors, (2491), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:08:05,766 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:08:05,767 INFO  L93              Difference]: Finished difference Result 15500 states and 25768 transitions.
[2023-12-25 14:08:05,768 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:08:05,769 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 498.2) internal successors, (2491), 5 states have internal predecessors, (2491), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2568
[2023-12-25 14:08:05,770 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:08:05,779 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:08:05,779 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:08:05,786 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:08:05,786 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 27348 mSDsluCounter, 13258 mSDsCounter, 0 mSdLazyCounter, 2593 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27364 SdHoareTripleChecker+Valid, 26514 SdHoareTripleChecker+Invalid, 2594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2023-12-25 14:08:05,787 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [27364 Valid, 26514 Invalid, 2594 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2593 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2023-12-25 14:08:05,793 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:08:05,848 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:08:05,856 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.6625429553264606) internal successors, (14514), 8730 states have internal predecessors, (14514), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:08:05,865 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14546 transitions.
[2023-12-25 14:08:05,866 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14546 transitions. Word has length 2568
[2023-12-25 14:08:05,867 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:08:05,867 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14546 transitions.
[2023-12-25 14:08:05,867 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 498.2) internal successors, (2491), 5 states have internal predecessors, (2491), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:08:05,867 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14546 transitions.
[2023-12-25 14:08:05,906 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2570
[2023-12-25 14:08:05,906 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:08:05,907 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:08:05,907 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2023-12-25 14:08:05,908 INFO  L420      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:08:05,908 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:08:05,908 INFO  L85        PathProgramCache]: Analyzing trace with hash 1239330877, now seen corresponding path program 1 times
[2023-12-25 14:08:05,908 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:08:05,908 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40110230]
[2023-12-25 14:08:05,909 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:08:05,909 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:08:09,059 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:12,474 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344
[2023-12-25 14:08:12,475 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:12,476 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358
[2023-12-25 14:08:12,476 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:12,477 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1372
[2023-12-25 14:08:12,478 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:12,478 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386
[2023-12-25 14:08:12,479 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:12,479 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400
[2023-12-25 14:08:12,480 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:12,481 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1418
[2023-12-25 14:08:12,481 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:12,482 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1436
[2023-12-25 14:08:12,482 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:12,483 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452
[2023-12-25 14:08:12,483 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:12,484 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470
[2023-12-25 14:08:12,484 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:12,485 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488
[2023-12-25 14:08:12,485 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:12,486 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1498
[2023-12-25 14:08:12,486 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:12,487 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1510
[2023-12-25 14:08:12,488 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:12,488 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1522
[2023-12-25 14:08:12,489 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:12,490 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534
[2023-12-25 14:08:12,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:12,491 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1546
[2023-12-25 14:08:12,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:12,492 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1558
[2023-12-25 14:08:12,492 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:08:12,496 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-25 14:08:12,496 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:08:12,496 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40110230]
[2023-12-25 14:08:12,496 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40110230] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:08:12,497 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:08:12,497 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:08:12,497 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376015745]
[2023-12-25 14:08:12,497 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:08:12,499 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:08:12,499 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:08:12,501 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:08:12,501 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:08:12,502 INFO  L87              Difference]: Start difference. First operand 8748 states and 14546 transitions. Second operand  has 5 states, 5 states have (on average 498.4) internal successors, (2492), 5 states have internal predecessors, (2492), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:08:14,427 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:08:14,427 INFO  L93              Difference]: Finished difference Result 15500 states and 25766 transitions.
[2023-12-25 14:08:14,428 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:08:14,428 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 498.4) internal successors, (2492), 5 states have internal predecessors, (2492), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 2569
[2023-12-25 14:08:14,429 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:08:14,437 INFO  L225             Difference]: With dead ends: 15500
[2023-12-25 14:08:14,437 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:08:14,442 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:08:14,442 INFO  L413           NwaCegarLoop]: 13256 mSDtfsCounter, 14453 mSDsluCounter, 13277 mSDsCounter, 0 mSdLazyCounter, 2591 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14469 SdHoareTripleChecker+Valid, 26533 SdHoareTripleChecker+Invalid, 2592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2023-12-25 14:08:14,443 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [14469 Valid, 26533 Invalid, 2592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2591 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2023-12-25 14:08:14,449 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:08:14,506 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8748.
[2023-12-25 14:08:14,513 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8748 states, 8730 states have (on average 1.6624284077892326) internal successors, (14513), 8730 states have internal predecessors, (14513), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-25 14:08:14,520 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 14545 transitions.
[2023-12-25 14:08:14,521 INFO  L78                 Accepts]: Start accepts. Automaton has 8748 states and 14545 transitions. Word has length 2569
[2023-12-25 14:08:14,522 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:08:14,522 INFO  L495      AbstractCegarLoop]: Abstraction has 8748 states and 14545 transitions.
[2023-12-25 14:08:14,522 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 498.4) internal successors, (2492), 5 states have internal predecessors, (2492), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-25 14:08:14,522 INFO  L276                IsEmpty]: Start isEmpty. Operand 8748 states and 14545 transitions.
[2023-12-25 14:08:14,596 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2571
[2023-12-25 14:08:14,596 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:08:14,597 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-12-25 14:08:14,597 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2023-12-25 14:08:14,598 INFO  L420      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:08:14,598 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:08:14,599 INFO  L85        PathProgramCache]: Analyzing trace with hash 590352933, now seen corresponding path program 1 times
[2023-12-25 14:08:14,599 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:08:14,599 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210043365]
[2023-12-25 14:08:14,599 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:08:14,599 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms