/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.brp.4.prop1-func-interl.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-25 14:37:07,867 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-25 14:37:07,949 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 14:37:07,954 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-25 14:37:07,955 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-25 14:37:07,988 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-25 14:37:07,988 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-25 14:37:07,988 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-25 14:37:07,989 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-25 14:37:07,992 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-25 14:37:07,993 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-25 14:37:07,993 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-25 14:37:07,993 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-25 14:37:07,995 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-25 14:37:07,995 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-25 14:37:07,995 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-25 14:37:07,995 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-25 14:37:07,995 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-25 14:37:07,996 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-25 14:37:07,997 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-25 14:37:07,997 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-25 14:37:07,997 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-25 14:37:07,997 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-25 14:37:07,998 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-25 14:37:07,998 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-25 14:37:07,998 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-25 14:37:07,998 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-25 14:37:07,999 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-25 14:37:07,999 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-25 14:37:07,999 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 14:37:08,000 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-25 14:37:08,000 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-25 14:37:08,000 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-25 14:37:08,000 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-25 14:37:08,000 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-25 14:37:08,001 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-25 14:37:08,001 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-25 14:37:08,001 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-25 14:37:08,001 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-25 14:37:08,001 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-25 14:37:08,001 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-25 14:37:08,184 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-25 14:37:08,205 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-25 14:37:08,207 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-25 14:37:08,208 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-25 14:37:08,209 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-25 14:37:08,209 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.brp.4.prop1-func-interl.c
[2023-12-25 14:37:09,331 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-25 14:37:09,682 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-25 14:37:09,682 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.brp.4.prop1-func-interl.c
[2023-12-25 14:37:09,706 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/163330e2d/572331f7f1964773bbf705831130ce62/FLAG8818d7109
[2023-12-25 14:37:09,720 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/163330e2d/572331f7f1964773bbf705831130ce62
[2023-12-25 14:37:09,723 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-25 14:37:09,724 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-25 14:37:09,726 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-25 14:37:09,727 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-25 14:37:09,731 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-25 14:37:09,731 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 02:37:09" (1/1) ...
[2023-12-25 14:37:09,732 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d583690 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:37:09, skipping insertion in model container
[2023-12-25 14:37:09,732 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 02:37:09" (1/1) ...
[2023-12-25 14:37:09,807 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-25 14:37:10,003 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.brp.4.prop1-func-interl.c[1170,1183]
[2023-12-25 14:37:10,516 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 14:37:10,524 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-25 14:37:10,535 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.brp.4.prop1-func-interl.c[1170,1183]
[2023-12-25 14:37:10,756 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 14:37:10,771 INFO  L206         MainTranslator]: Completed translation
[2023-12-25 14:37:10,772 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:37:10 WrapperNode
[2023-12-25 14:37:10,772 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-25 14:37:10,773 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-25 14:37:10,773 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-25 14:37:10,774 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-25 14:37:10,780 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:37:10" (1/1) ...
[2023-12-25 14:37:10,866 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:37:10" (1/1) ...
[2023-12-25 14:37:12,223 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 12107
[2023-12-25 14:37:12,224 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-25 14:37:12,225 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-25 14:37:12,225 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-25 14:37:12,225 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-25 14:37:12,234 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:37:10" (1/1) ...
[2023-12-25 14:37:12,235 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:37:10" (1/1) ...
[2023-12-25 14:37:12,587 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:37:10" (1/1) ...
[2023-12-25 14:37:12,866 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 14:37:12,866 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:37:10" (1/1) ...
[2023-12-25 14:37:12,867 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:37:10" (1/1) ...
[2023-12-25 14:37:13,218 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:37:10" (1/1) ...
[2023-12-25 14:37:13,267 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:37:10" (1/1) ...
[2023-12-25 14:37:13,331 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:37:10" (1/1) ...
[2023-12-25 14:37:13,370 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:37:10" (1/1) ...
[2023-12-25 14:37:13,709 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-25 14:37:13,713 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-25 14:37:13,713 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-25 14:37:13,713 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-25 14:37:13,714 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:37:10" (1/1) ...
[2023-12-25 14:37:13,719 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 14:37:13,729 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:37:13,741 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 14:37:13,743 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 14:37:13,763 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-25 14:37:13,763 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-25 14:37:13,763 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-25 14:37:13,763 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-25 14:37:14,287 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-25 14:37:14,289 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-25 14:37:19,892 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-25 14:37:20,040 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-25 14:37:20,041 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-25 14:37:20,041 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 02:37:20 BoogieIcfgContainer
[2023-12-25 14:37:20,041 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-25 14:37:20,043 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-25 14:37:20,043 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-25 14:37:20,046 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-25 14:37:20,046 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 02:37:09" (1/3) ...
[2023-12-25 14:37:20,047 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341edc22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 02:37:20, skipping insertion in model container
[2023-12-25 14:37:20,047 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:37:10" (2/3) ...
[2023-12-25 14:37:20,047 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341edc22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 02:37:20, skipping insertion in model container
[2023-12-25 14:37:20,047 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 02:37:20" (3/3) ...
[2023-12-25 14:37:20,048 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.brp.4.prop1-func-interl.c
[2023-12-25 14:37:20,062 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-25 14:37:20,063 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-25 14:37:20,140 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-25 14:37:20,146 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;@4bdbef4c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-25 14:37:20,146 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-25 14:37:20,156 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 2771 states, 2769 states have (on average 1.6666666666666667) internal successors, (4615), 2770 states have internal predecessors, (4615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:20,169 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 171
[2023-12-25 14:37:20,169 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:37:20,170 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:37:20,170 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:37:20,174 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:37:20,175 INFO  L85        PathProgramCache]: Analyzing trace with hash 1552974218, now seen corresponding path program 1 times
[2023-12-25 14:37:20,181 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:37:20,182 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549028344]
[2023-12-25 14:37:20,182 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:37:20,182 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:37:20,471 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:37:21,253 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:37:21,254 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:37:21,254 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549028344]
[2023-12-25 14:37:21,255 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549028344] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:37:21,255 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:37:21,255 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:37:21,257 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702731658]
[2023-12-25 14:37:21,257 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:37:21,261 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:37:21,261 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:37:21,295 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:37:21,295 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:37:21,302 INFO  L87              Difference]: Start difference. First operand  has 2771 states, 2769 states have (on average 1.6666666666666667) internal successors, (4615), 2770 states have internal predecessors, (4615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:21,523 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:37:21,524 INFO  L93              Difference]: Finished difference Result 5427 states and 9041 transitions.
[2023-12-25 14:37:21,526 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:37:21,527 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 170
[2023-12-25 14:37:21,528 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:37:21,562 INFO  L225             Difference]: With dead ends: 5427
[2023-12-25 14:37:21,562 INFO  L226             Difference]: Without dead ends: 2771
[2023-12-25 14:37:21,574 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:37:21,577 INFO  L413           NwaCegarLoop]: 4608 mSDtfsCounter, 1 mSDsluCounter, 9211 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 13819 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:37:21,578 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 13819 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:37:21,607 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2771 states.
[2023-12-25 14:37:21,709 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2771 to 2771.
[2023-12-25 14:37:21,715 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2771 states, 2770 states have (on average 1.6653429602888086) internal successors, (4613), 2770 states have internal predecessors, (4613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:21,722 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4613 transitions.
[2023-12-25 14:37:21,723 INFO  L78                 Accepts]: Start accepts. Automaton has 2771 states and 4613 transitions. Word has length 170
[2023-12-25 14:37:21,726 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:37:21,726 INFO  L495      AbstractCegarLoop]: Abstraction has 2771 states and 4613 transitions.
[2023-12-25 14:37:21,726 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:21,726 INFO  L276                IsEmpty]: Start isEmpty. Operand 2771 states and 4613 transitions.
[2023-12-25 14:37:21,734 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2023-12-25 14:37:21,734 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:37:21,735 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:37:21,735 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-25 14:37:21,735 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:37:21,736 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:37:21,736 INFO  L85        PathProgramCache]: Analyzing trace with hash 899286446, now seen corresponding path program 1 times
[2023-12-25 14:37:21,736 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:37:21,737 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387803101]
[2023-12-25 14:37:21,737 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:37:21,737 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:37:21,829 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:37:22,120 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:37:22,121 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:37:22,121 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387803101]
[2023-12-25 14:37:22,122 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387803101] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:37:22,122 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:37:22,122 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:37:22,122 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101356059]
[2023-12-25 14:37:22,122 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:37:22,125 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:37:22,128 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:37:22,129 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:37:22,129 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:37:22,129 INFO  L87              Difference]: Start difference. First operand 2771 states and 4613 transitions. Second operand  has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:22,260 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:37:22,261 INFO  L93              Difference]: Finished difference Result 5430 states and 9039 transitions.
[2023-12-25 14:37:22,261 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:37:22,262 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171
[2023-12-25 14:37:22,264 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:37:22,275 INFO  L225             Difference]: With dead ends: 5430
[2023-12-25 14:37:22,275 INFO  L226             Difference]: Without dead ends: 2774
[2023-12-25 14:37:22,279 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:37:22,280 INFO  L413           NwaCegarLoop]: 4608 mSDtfsCounter, 1 mSDsluCounter, 9209 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 13817 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:37:22,280 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 13817 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:37:22,286 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2774 states.
[2023-12-25 14:37:22,389 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 2773.
[2023-12-25 14:37:22,393 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2773 states, 2772 states have (on average 1.6648629148629148) internal successors, (4615), 2772 states have internal predecessors, (4615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:22,399 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2773 states to 2773 states and 4615 transitions.
[2023-12-25 14:37:22,399 INFO  L78                 Accepts]: Start accepts. Automaton has 2773 states and 4615 transitions. Word has length 171
[2023-12-25 14:37:22,401 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:37:22,401 INFO  L495      AbstractCegarLoop]: Abstraction has 2773 states and 4615 transitions.
[2023-12-25 14:37:22,401 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:22,401 INFO  L276                IsEmpty]: Start isEmpty. Operand 2773 states and 4615 transitions.
[2023-12-25 14:37:22,403 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2023-12-25 14:37:22,403 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:37:22,403 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:37:22,404 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-25 14:37:22,404 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:37:22,405 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:37:22,406 INFO  L85        PathProgramCache]: Analyzing trace with hash -622315354, now seen corresponding path program 1 times
[2023-12-25 14:37:22,406 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:37:22,406 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555718127]
[2023-12-25 14:37:22,406 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:37:22,407 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:37:22,476 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:37:22,711 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:37:22,712 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:37:22,712 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555718127]
[2023-12-25 14:37:22,713 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555718127] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:37:22,713 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:37:22,713 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:37:22,713 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289640791]
[2023-12-25 14:37:22,713 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:37:22,714 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:37:22,714 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:37:22,715 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:37:22,717 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:37:22,717 INFO  L87              Difference]: Start difference. First operand 2773 states and 4615 transitions. Second operand  has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:22,878 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:37:22,879 INFO  L93              Difference]: Finished difference Result 8079 states and 13448 transitions.
[2023-12-25 14:37:22,879 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:37:22,879 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 172
[2023-12-25 14:37:22,880 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:37:22,898 INFO  L225             Difference]: With dead ends: 8079
[2023-12-25 14:37:22,898 INFO  L226             Difference]: Without dead ends: 5421
[2023-12-25 14:37:22,905 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:37:22,907 INFO  L413           NwaCegarLoop]: 4819 mSDtfsCounter, 4406 mSDsluCounter, 9416 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4406 SdHoareTripleChecker+Valid, 14235 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:37:22,908 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [4406 Valid, 14235 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:37:22,915 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5421 states.
[2023-12-25 14:37:22,963 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5421 to 2775.
[2023-12-25 14:37:22,968 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2775 states, 2774 states have (on average 1.6643835616438356) internal successors, (4617), 2774 states have internal predecessors, (4617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:22,976 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 4617 transitions.
[2023-12-25 14:37:22,976 INFO  L78                 Accepts]: Start accepts. Automaton has 2775 states and 4617 transitions. Word has length 172
[2023-12-25 14:37:22,977 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:37:22,977 INFO  L495      AbstractCegarLoop]: Abstraction has 2775 states and 4617 transitions.
[2023-12-25 14:37:22,978 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:22,979 INFO  L276                IsEmpty]: Start isEmpty. Operand 2775 states and 4617 transitions.
[2023-12-25 14:37:22,982 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 174
[2023-12-25 14:37:22,983 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:37:22,987 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:37:22,987 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-25 14:37:22,988 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:37:22,988 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:37:22,988 INFO  L85        PathProgramCache]: Analyzing trace with hash 2072354966, now seen corresponding path program 1 times
[2023-12-25 14:37:22,988 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:37:22,988 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187777347]
[2023-12-25 14:37:22,988 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:37:22,988 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:37:23,045 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:37:23,359 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:37:23,360 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:37:23,360 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187777347]
[2023-12-25 14:37:23,360 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187777347] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:37:23,360 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:37:23,360 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:37:23,360 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393732028]
[2023-12-25 14:37:23,360 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:37:23,361 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:37:23,361 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:37:23,361 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:37:23,361 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:37:23,362 INFO  L87              Difference]: Start difference. First operand 2775 states and 4617 transitions. Second operand  has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:23,565 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:37:23,565 INFO  L93              Difference]: Finished difference Result 8214 states and 13669 transitions.
[2023-12-25 14:37:23,565 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:37:23,565 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173
[2023-12-25 14:37:23,566 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:37:23,585 INFO  L225             Difference]: With dead ends: 8214
[2023-12-25 14:37:23,585 INFO  L226             Difference]: Without dead ends: 5554
[2023-12-25 14:37:23,589 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 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 14:37:23,594 INFO  L413           NwaCegarLoop]: 4815 mSDtfsCounter, 17893 mSDsluCounter, 9207 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17893 SdHoareTripleChecker+Valid, 14022 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:37:23,595 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [17893 Valid, 14022 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:37:23,602 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5554 states.
[2023-12-25 14:37:23,650 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5554 to 2904.
[2023-12-25 14:37:23,655 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2904 states, 2903 states have (on average 1.6644850155012056) internal successors, (4832), 2903 states have internal predecessors, (4832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:23,661 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2904 states to 2904 states and 4832 transitions.
[2023-12-25 14:37:23,661 INFO  L78                 Accepts]: Start accepts. Automaton has 2904 states and 4832 transitions. Word has length 173
[2023-12-25 14:37:23,662 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:37:23,662 INFO  L495      AbstractCegarLoop]: Abstraction has 2904 states and 4832 transitions.
[2023-12-25 14:37:23,662 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:23,662 INFO  L276                IsEmpty]: Start isEmpty. Operand 2904 states and 4832 transitions.
[2023-12-25 14:37:23,752 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1943
[2023-12-25 14:37:23,753 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:37:23,754 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:37:23,754 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-12-25 14:37:23,754 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:37:23,754 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:37:23,755 INFO  L85        PathProgramCache]: Analyzing trace with hash 604618359, now seen corresponding path program 1 times
[2023-12-25 14:37:23,755 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:37:23,755 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628939004]
[2023-12-25 14:37:23,756 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:37:23,756 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:37:30,195 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:37:34,918 INFO  L134       CoverageAnalysis]: Checked inductivity of 92 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:37:34,919 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:37:34,919 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628939004]
[2023-12-25 14:37:34,919 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628939004] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:37:34,919 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:37:34,919 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:37:34,919 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710707501]
[2023-12-25 14:37:34,920 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:37:34,921 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:37:34,922 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:37:34,923 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:37:34,923 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:37:34,924 INFO  L87              Difference]: Start difference. First operand 2904 states and 4832 transitions. Second operand  has 4 states, 4 states have (on average 485.5) internal successors, (1942), 4 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:36,967 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:37:36,967 INFO  L93              Difference]: Finished difference Result 7960 states and 13162 transitions.
[2023-12-25 14:37:36,968 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:37:36,969 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 485.5) internal successors, (1942), 4 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1942
[2023-12-25 14:37:36,971 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:37:36,981 INFO  L225             Difference]: With dead ends: 7960
[2023-12-25 14:37:36,981 INFO  L226             Difference]: Without dead ends: 2904
[2023-12-25 14:37:36,986 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 14:37:36,987 INFO  L413           NwaCegarLoop]: 5829 mSDtfsCounter, 2605 mSDsluCounter, 9307 mSDsCounter, 0 mSdLazyCounter, 1645 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2605 SdHoareTripleChecker+Valid, 15136 SdHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 1645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2023-12-25 14:37:36,987 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2605 Valid, 15136 Invalid, 1898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 1645 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2023-12-25 14:37:36,990 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2904 states.
[2023-12-25 14:37:37,027 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 2904.
[2023-12-25 14:37:37,031 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2904 states, 2903 states have (on average 1.6641405442645538) internal successors, (4831), 2903 states have internal predecessors, (4831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:37,036 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2904 states to 2904 states and 4831 transitions.
[2023-12-25 14:37:37,037 INFO  L78                 Accepts]: Start accepts. Automaton has 2904 states and 4831 transitions. Word has length 1942
[2023-12-25 14:37:37,038 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:37:37,038 INFO  L495      AbstractCegarLoop]: Abstraction has 2904 states and 4831 transitions.
[2023-12-25 14:37:37,039 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 485.5) internal successors, (1942), 4 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:37,039 INFO  L276                IsEmpty]: Start isEmpty. Operand 2904 states and 4831 transitions.
[2023-12-25 14:37:37,065 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1944
[2023-12-25 14:37:37,065 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:37:37,066 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:37:37,066 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-12-25 14:37:37,066 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:37:37,067 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:37:37,067 INFO  L85        PathProgramCache]: Analyzing trace with hash -1717570845, now seen corresponding path program 1 times
[2023-12-25 14:37:37,067 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:37:37,067 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598870665]
[2023-12-25 14:37:37,068 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:37:37,068 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:37:42,381 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:37:45,374 INFO  L134       CoverageAnalysis]: Checked inductivity of 92 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:37:45,374 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:37:45,374 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598870665]
[2023-12-25 14:37:45,374 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598870665] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:37:45,374 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:37:45,375 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:37:45,375 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559647417]
[2023-12-25 14:37:45,375 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:37:45,377 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:37:45,377 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:37:45,379 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:37:45,379 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:37:45,379 INFO  L87              Difference]: Start difference. First operand 2904 states and 4831 transitions. Second operand  has 4 states, 4 states have (on average 485.75) internal successors, (1943), 4 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:47,150 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:37:47,150 INFO  L93              Difference]: Finished difference Result 5564 states and 9256 transitions.
[2023-12-25 14:37:47,150 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:37:47,152 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 485.75) internal successors, (1943), 4 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1943
[2023-12-25 14:37:47,153 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:37:47,162 INFO  L225             Difference]: With dead ends: 5564
[2023-12-25 14:37:47,163 INFO  L226             Difference]: Without dead ends: 2904
[2023-12-25 14:37:47,166 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:37:47,167 INFO  L413           NwaCegarLoop]: 3486 mSDtfsCounter, 4587 mSDsluCounter, 3477 mSDsCounter, 0 mSdLazyCounter, 2251 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4587 SdHoareTripleChecker+Valid, 6963 SdHoareTripleChecker+Invalid, 2252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2023-12-25 14:37:47,167 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [4587 Valid, 6963 Invalid, 2252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2251 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2023-12-25 14:37:47,171 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2904 states.
[2023-12-25 14:37:47,204 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 2904.
[2023-12-25 14:37:47,207 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2904 states, 2903 states have (on average 1.6637960730279022) internal successors, (4830), 2903 states have internal predecessors, (4830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:47,213 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2904 states to 2904 states and 4830 transitions.
[2023-12-25 14:37:47,216 INFO  L78                 Accepts]: Start accepts. Automaton has 2904 states and 4830 transitions. Word has length 1943
[2023-12-25 14:37:47,217 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:37:47,218 INFO  L495      AbstractCegarLoop]: Abstraction has 2904 states and 4830 transitions.
[2023-12-25 14:37:47,219 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 485.75) internal successors, (1943), 4 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:47,219 INFO  L276                IsEmpty]: Start isEmpty. Operand 2904 states and 4830 transitions.
[2023-12-25 14:37:47,245 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1945
[2023-12-25 14:37:47,245 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:37:47,246 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 14:37:47,247 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-12-25 14:37:47,247 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:37:47,247 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:37:47,248 INFO  L85        PathProgramCache]: Analyzing trace with hash -2129198341, now seen corresponding path program 1 times
[2023-12-25 14:37:47,248 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:37:47,248 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504019705]
[2023-12-25 14:37:47,248 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:37:47,248 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:37:51,533 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:37:55,069 INFO  L134       CoverageAnalysis]: Checked inductivity of 92 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:37:55,070 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:37:55,070 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504019705]
[2023-12-25 14:37:55,070 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504019705] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:37:55,070 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:37:55,070 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-25 14:37:55,070 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601675552]
[2023-12-25 14:37:55,070 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:37:55,072 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 14:37:55,072 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:37:55,074 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 14:37:55,074 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:37:55,074 INFO  L87              Difference]: Start difference. First operand 2904 states and 4830 transitions. Second operand  has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:59,665 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:37:59,666 INFO  L93              Difference]: Finished difference Result 8222 states and 13675 transitions.
[2023-12-25 14:37:59,668 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-25 14:37:59,669 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1944
[2023-12-25 14:37:59,670 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:37:59,687 INFO  L225             Difference]: With dead ends: 8222
[2023-12-25 14:37:59,688 INFO  L226             Difference]: Without dead ends: 5562
[2023-12-25 14:37:59,692 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-25 14:37:59,693 INFO  L413           NwaCegarLoop]: 6786 mSDtfsCounter, 9030 mSDsluCounter, 17035 mSDsCounter, 0 mSdLazyCounter, 7480 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9030 SdHoareTripleChecker+Valid, 23821 SdHoareTripleChecker+Invalid, 7481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time
[2023-12-25 14:37:59,693 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9030 Valid, 23821 Invalid, 7481 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 7480 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time]
[2023-12-25 14:37:59,698 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5562 states.
[2023-12-25 14:37:59,748 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5562 to 2978.
[2023-12-25 14:37:59,751 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2978 states, 2977 states have (on average 1.663419549882432) internal successors, (4952), 2977 states have internal predecessors, (4952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:59,755 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 4952 transitions.
[2023-12-25 14:37:59,755 INFO  L78                 Accepts]: Start accepts. Automaton has 2978 states and 4952 transitions. Word has length 1944
[2023-12-25 14:37:59,756 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:37:59,756 INFO  L495      AbstractCegarLoop]: Abstraction has 2978 states and 4952 transitions.
[2023-12-25 14:37:59,757 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:37:59,757 INFO  L276                IsEmpty]: Start isEmpty. Operand 2978 states and 4952 transitions.
[2023-12-25 14:37:59,785 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1945
[2023-12-25 14:37:59,785 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:37:59,787 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 14:37:59,787 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-12-25 14:37:59,787 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:37:59,787 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:37:59,788 INFO  L85        PathProgramCache]: Analyzing trace with hash -1804878151, now seen corresponding path program 1 times
[2023-12-25 14:37:59,788 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:37:59,788 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114659461]
[2023-12-25 14:37:59,788 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:37:59,788 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:38:03,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:38:06,142 INFO  L134       CoverageAnalysis]: Checked inductivity of 92 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:38:06,143 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:38:06,143 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114659461]
[2023-12-25 14:38:06,143 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114659461] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:38:06,143 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:38:06,143 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:38:06,143 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042959744]
[2023-12-25 14:38:06,144 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:38:06,146 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:38:06,146 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:38:06,147 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:38:06,148 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:38:06,148 INFO  L87              Difference]: Start difference. First operand 2978 states and 4952 transitions. Second operand  has 4 states, 4 states have (on average 486.0) internal successors, (1944), 4 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:38:07,683 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:38:07,683 INFO  L93              Difference]: Finished difference Result 5712 states and 9498 transitions.
[2023-12-25 14:38:07,684 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:38:07,685 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 486.0) internal successors, (1944), 4 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1944
[2023-12-25 14:38:07,687 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:38:07,695 INFO  L225             Difference]: With dead ends: 5712
[2023-12-25 14:38:07,695 INFO  L226             Difference]: Without dead ends: 2978
[2023-12-25 14:38:07,698 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:38:07,699 INFO  L413           NwaCegarLoop]: 3486 mSDtfsCounter, 4383 mSDsluCounter, 3479 mSDsCounter, 0 mSdLazyCounter, 2247 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4383 SdHoareTripleChecker+Valid, 6965 SdHoareTripleChecker+Invalid, 2248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2023-12-25 14:38:07,699 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [4383 Valid, 6965 Invalid, 2248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2247 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2023-12-25 14:38:07,703 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2978 states.
[2023-12-25 14:38:07,739 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 2978.
[2023-12-25 14:38:07,743 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2978 states, 2977 states have (on average 1.6630836412495802) internal successors, (4951), 2977 states have internal predecessors, (4951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:38:07,747 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 4951 transitions.
[2023-12-25 14:38:07,747 INFO  L78                 Accepts]: Start accepts. Automaton has 2978 states and 4951 transitions. Word has length 1944
[2023-12-25 14:38:07,749 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:38:07,749 INFO  L495      AbstractCegarLoop]: Abstraction has 2978 states and 4951 transitions.
[2023-12-25 14:38:07,750 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 486.0) internal successors, (1944), 4 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:38:07,750 INFO  L276                IsEmpty]: Start isEmpty. Operand 2978 states and 4951 transitions.
[2023-12-25 14:38:07,777 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1946
[2023-12-25 14:38:07,778 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:38:07,779 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 14:38:07,779 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-12-25 14:38:07,779 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:38:07,779 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:38:07,780 INFO  L85        PathProgramCache]: Analyzing trace with hash -1790638361, now seen corresponding path program 1 times
[2023-12-25 14:38:07,780 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:38:07,780 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906701315]
[2023-12-25 14:38:07,780 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:38:07,780 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:38:12,496 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:38:15,080 INFO  L134       CoverageAnalysis]: Checked inductivity of 92 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:38:15,080 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:38:15,081 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906701315]
[2023-12-25 14:38:15,081 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906701315] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:38:15,081 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:38:15,081 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:38:15,081 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528359745]
[2023-12-25 14:38:15,081 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:38:15,086 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:38:15,086 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:38:15,089 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:38:15,089 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:38:15,090 INFO  L87              Difference]: Start difference. First operand 2978 states and 4951 transitions. Second operand  has 5 states, 5 states have (on average 389.0) internal successors, (1945), 5 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:38:18,440 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:38:18,440 INFO  L93              Difference]: Finished difference Result 7194 states and 11958 transitions.
[2023-12-25 14:38:18,440 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:38:18,441 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 389.0) internal successors, (1945), 5 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1945
[2023-12-25 14:38:18,443 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:38:18,450 INFO  L225             Difference]: With dead ends: 7194
[2023-12-25 14:38:18,450 INFO  L226             Difference]: Without dead ends: 4460
[2023-12-25 14:38:18,454 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:38:18,455 INFO  L413           NwaCegarLoop]: 5201 mSDtfsCounter, 8755 mSDsluCounter, 6997 mSDsCounter, 0 mSdLazyCounter, 4867 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8755 SdHoareTripleChecker+Valid, 12198 SdHoareTripleChecker+Invalid, 4868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2023-12-25 14:38:18,455 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8755 Valid, 12198 Invalid, 4868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4867 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2023-12-25 14:38:18,459 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4460 states.
[2023-12-25 14:38:18,500 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4460 to 2978.
[2023-12-25 14:38:18,504 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2978 states, 2977 states have (on average 1.6627477326167281) internal successors, (4950), 2977 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:38:18,509 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 4950 transitions.
[2023-12-25 14:38:18,509 INFO  L78                 Accepts]: Start accepts. Automaton has 2978 states and 4950 transitions. Word has length 1945
[2023-12-25 14:38:18,511 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:38:18,511 INFO  L495      AbstractCegarLoop]: Abstraction has 2978 states and 4950 transitions.
[2023-12-25 14:38:18,511 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 389.0) internal successors, (1945), 5 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:38:18,512 INFO  L276                IsEmpty]: Start isEmpty. Operand 2978 states and 4950 transitions.
[2023-12-25 14:38:18,539 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1947
[2023-12-25 14:38:18,539 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:38:18,540 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:38:18,540 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-12-25 14:38:18,540 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:38:18,541 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:38:18,541 INFO  L85        PathProgramCache]: Analyzing trace with hash 898695895, now seen corresponding path program 1 times
[2023-12-25 14:38:18,541 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:38:18,541 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683468902]
[2023-12-25 14:38:18,542 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:38:18,542 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:38:23,162 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:38:25,866 INFO  L134       CoverageAnalysis]: Checked inductivity of 92 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:38:25,867 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:38:25,867 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683468902]
[2023-12-25 14:38:25,867 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683468902] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:38:25,867 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:38:25,867 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:38:25,867 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374688526]
[2023-12-25 14:38:25,867 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:38:25,869 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 14:38:25,870 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:38:25,871 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 14:38:25,871 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:38:25,872 INFO  L87              Difference]: Start difference. First operand 2978 states and 4950 transitions. Second operand  has 6 states, 6 states have (on average 324.3333333333333) internal successors, (1946), 5 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:38:27,333 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:38:27,336 INFO  L93              Difference]: Finished difference Result 9251 states and 15333 transitions.
[2023-12-25 14:38:27,336 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-25 14:38:27,352 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 324.3333333333333) internal successors, (1946), 5 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1946
[2023-12-25 14:38:27,353 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:38:27,375 INFO  L225             Difference]: With dead ends: 9251
[2023-12-25 14:38:27,376 INFO  L226             Difference]: Without dead ends: 5573
[2023-12-25 14:38:27,380 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90
[2023-12-25 14:38:27,381 INFO  L413           NwaCegarLoop]: 4466 mSDtfsCounter, 15999 mSDsluCounter, 12260 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15999 SdHoareTripleChecker+Valid, 16726 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2023-12-25 14:38:27,394 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [15999 Valid, 16726 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2023-12-25 14:38:27,401 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5573 states.
[2023-12-25 14:38:27,469 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5573 to 2978.
[2023-12-25 14:38:27,480 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2978 states, 2977 states have (on average 1.6624118239838763) internal successors, (4949), 2977 states have internal predecessors, (4949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:38:27,484 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 4949 transitions.
[2023-12-25 14:38:27,484 INFO  L78                 Accepts]: Start accepts. Automaton has 2978 states and 4949 transitions. Word has length 1946
[2023-12-25 14:38:27,485 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:38:27,485 INFO  L495      AbstractCegarLoop]: Abstraction has 2978 states and 4949 transitions.
[2023-12-25 14:38:27,486 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 324.3333333333333) internal successors, (1946), 5 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:38:27,486 INFO  L276                IsEmpty]: Start isEmpty. Operand 2978 states and 4949 transitions.
[2023-12-25 14:38:27,540 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1948
[2023-12-25 14:38:27,541 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:38:27,542 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:38:27,542 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-12-25 14:38:27,542 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:38:27,556 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:38:27,557 INFO  L85        PathProgramCache]: Analyzing trace with hash 1926989511, now seen corresponding path program 1 times
[2023-12-25 14:38:27,557 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:38:27,557 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962215957]
[2023-12-25 14:38:27,557 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:38:27,557 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:38:32,770 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:38:35,132 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:38:35,132 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:38:35,132 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962215957]
[2023-12-25 14:38:35,132 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962215957] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:38:35,133 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:38:35,133 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:38:35,133 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410851971]
[2023-12-25 14:38:35,133 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:38:35,135 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 14:38:35,135 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:38:35,137 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 14:38:35,137 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:38:35,138 INFO  L87              Difference]: Start difference. First operand 2978 states and 4949 transitions. Second operand  has 6 states, 6 states have (on average 324.5) internal successors, (1947), 5 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:38:37,653 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:38:37,654 INFO  L93              Difference]: Finished difference Result 8391 states and 13933 transitions.
[2023-12-25 14:38:37,654 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:38:37,655 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 324.5) internal successors, (1947), 5 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1947
[2023-12-25 14:38:37,655 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:38:37,664 INFO  L225             Difference]: With dead ends: 8391
[2023-12-25 14:38:37,664 INFO  L226             Difference]: Without dead ends: 5657
[2023-12-25 14:38:37,669 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72
[2023-12-25 14:38:37,669 INFO  L413           NwaCegarLoop]: 3698 mSDtfsCounter, 13254 mSDsluCounter, 11405 mSDsCounter, 0 mSdLazyCounter, 3283 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13254 SdHoareTripleChecker+Valid, 15103 SdHoareTripleChecker+Invalid, 3325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 3283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2023-12-25 14:38:37,670 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13254 Valid, 15103 Invalid, 3325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 3283 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2023-12-25 14:38:37,675 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5657 states.
[2023-12-25 14:38:37,715 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5657 to 3043.
[2023-12-25 14:38:37,721 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3043 states, 3042 states have (on average 1.660749506903353) internal successors, (5052), 3042 states have internal predecessors, (5052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:38:37,726 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 5052 transitions.
[2023-12-25 14:38:37,726 INFO  L78                 Accepts]: Start accepts. Automaton has 3043 states and 5052 transitions. Word has length 1947
[2023-12-25 14:38:37,727 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:38:37,727 INFO  L495      AbstractCegarLoop]: Abstraction has 3043 states and 5052 transitions.
[2023-12-25 14:38:37,727 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 324.5) internal successors, (1947), 5 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:38:37,728 INFO  L276                IsEmpty]: Start isEmpty. Operand 3043 states and 5052 transitions.
[2023-12-25 14:38:37,755 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1949
[2023-12-25 14:38:37,755 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:38:37,756 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:38:37,756 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-12-25 14:38:37,756 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:38:37,757 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:38:37,757 INFO  L85        PathProgramCache]: Analyzing trace with hash -1845672231, now seen corresponding path program 1 times
[2023-12-25 14:38:37,757 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:38:37,757 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490681921]
[2023-12-25 14:38:37,758 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:38:37,758 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:38:42,073 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:38:44,332 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:38:44,332 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:38:44,332 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490681921]
[2023-12-25 14:38:44,332 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490681921] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:38:44,332 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:38:44,333 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-25 14:38:44,333 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91616192]
[2023-12-25 14:38:44,333 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:38:44,335 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 14:38:44,335 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:38:44,337 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 14:38:44,337 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:38:44,337 INFO  L87              Difference]: Start difference. First operand 3043 states and 5052 transitions. Second operand  has 6 states, 6 states have (on average 324.6666666666667) internal successors, (1948), 6 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:38:46,306 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:38:46,307 INFO  L93              Difference]: Finished difference Result 9677 states and 16011 transitions.
[2023-12-25 14:38:46,307 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:38:46,308 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 324.6666666666667) internal successors, (1948), 6 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1948
[2023-12-25 14:38:46,308 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:38:46,320 INFO  L225             Difference]: With dead ends: 9677
[2023-12-25 14:38:46,320 INFO  L226             Difference]: Without dead ends: 6943
[2023-12-25 14:38:46,324 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:38:46,325 INFO  L413           NwaCegarLoop]: 3754 mSDtfsCounter, 10182 mSDsluCounter, 13008 mSDsCounter, 0 mSdLazyCounter, 3253 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10182 SdHoareTripleChecker+Valid, 16762 SdHoareTripleChecker+Invalid, 3408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 3253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2023-12-25 14:38:46,325 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10182 Valid, 16762 Invalid, 3408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 3253 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2023-12-25 14:38:46,330 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6943 states.
[2023-12-25 14:38:46,434 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6943 to 3431.
[2023-12-25 14:38:46,438 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3431 states, 3430 states have (on average 1.654518950437318) internal successors, (5675), 3430 states have internal predecessors, (5675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:38:46,442 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3431 states to 3431 states and 5675 transitions.
[2023-12-25 14:38:46,443 INFO  L78                 Accepts]: Start accepts. Automaton has 3431 states and 5675 transitions. Word has length 1948
[2023-12-25 14:38:46,443 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:38:46,443 INFO  L495      AbstractCegarLoop]: Abstraction has 3431 states and 5675 transitions.
[2023-12-25 14:38:46,444 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 324.6666666666667) internal successors, (1948), 6 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:38:46,444 INFO  L276                IsEmpty]: Start isEmpty. Operand 3431 states and 5675 transitions.
[2023-12-25 14:38:46,471 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1950
[2023-12-25 14:38:46,472 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:38:46,473 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:38:46,473 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-12-25 14:38:46,473 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:38:46,473 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:38:46,474 INFO  L85        PathProgramCache]: Analyzing trace with hash 1135674209, now seen corresponding path program 1 times
[2023-12-25 14:38:46,474 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:38:46,474 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236565754]
[2023-12-25 14:38:46,474 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:38:46,474 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:38:47,311 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:38:50,466 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:38:50,467 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:38:50,467 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236565754]
[2023-12-25 14:38:50,467 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236565754] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:38:50,467 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:38:50,467 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 14:38:50,468 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108337240]
[2023-12-25 14:38:50,468 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:38:50,470 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 14:38:50,470 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:38:50,471 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 14:38:50,471 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 14:38:50,472 INFO  L87              Difference]: Start difference. First operand 3431 states and 5675 transitions. Second operand  has 7 states, 7 states have (on average 278.42857142857144) internal successors, (1949), 7 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:38:55,765 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:38:55,766 INFO  L93              Difference]: Finished difference Result 12380 states and 20498 transitions.
[2023-12-25 14:38:55,766 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-25 14:38:55,766 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 278.42857142857144) internal successors, (1949), 7 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1949
[2023-12-25 14:38:55,767 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:38:55,778 INFO  L225             Difference]: With dead ends: 12380
[2023-12-25 14:38:55,779 INFO  L226             Difference]: Without dead ends: 9392
[2023-12-25 14:38:55,783 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 14:38:55,784 INFO  L413           NwaCegarLoop]: 7018 mSDtfsCounter, 17468 mSDsluCounter, 20677 mSDsCounter, 0 mSdLazyCounter, 8785 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17468 SdHoareTripleChecker+Valid, 27695 SdHoareTripleChecker+Invalid, 8786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time
[2023-12-25 14:38:55,784 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [17468 Valid, 27695 Invalid, 8786 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 8785 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time]
[2023-12-25 14:38:55,789 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9392 states.
[2023-12-25 14:38:55,836 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9392 to 3438.
[2023-12-25 14:38:55,841 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3438 states, 3437 states have (on average 1.6537678207739308) internal successors, (5684), 3437 states have internal predecessors, (5684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:38:55,847 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3438 states to 3438 states and 5684 transitions.
[2023-12-25 14:38:55,847 INFO  L78                 Accepts]: Start accepts. Automaton has 3438 states and 5684 transitions. Word has length 1949
[2023-12-25 14:38:55,848 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:38:55,848 INFO  L495      AbstractCegarLoop]: Abstraction has 3438 states and 5684 transitions.
[2023-12-25 14:38:55,849 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 278.42857142857144) internal successors, (1949), 7 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:38:55,849 INFO  L276                IsEmpty]: Start isEmpty. Operand 3438 states and 5684 transitions.
[2023-12-25 14:38:55,876 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1950
[2023-12-25 14:38:55,876 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:38:55,877 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:38:55,877 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-12-25 14:38:55,878 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:38:55,878 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:38:55,879 INFO  L85        PathProgramCache]: Analyzing trace with hash 372641055, now seen corresponding path program 1 times
[2023-12-25 14:38:55,879 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:38:55,879 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559304465]
[2023-12-25 14:38:55,879 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:38:55,880 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:39:00,431 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:39:02,498 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:39:02,499 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:39:02,499 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559304465]
[2023-12-25 14:39:02,499 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559304465] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:39:02,499 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:39:02,499 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-25 14:39:02,499 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761724786]
[2023-12-25 14:39:02,499 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:39:02,501 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 14:39:02,501 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:39:02,503 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 14:39:02,503 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:39:02,503 INFO  L87              Difference]: Start difference. First operand 3438 states and 5684 transitions. Second operand  has 6 states, 6 states have (on average 324.8333333333333) internal successors, (1949), 6 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:39:05,381 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:39:05,381 INFO  L93              Difference]: Finished difference Result 10622 states and 17525 transitions.
[2023-12-25 14:39:05,381 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:39:05,382 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 324.8333333333333) internal successors, (1949), 6 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1949
[2023-12-25 14:39:05,382 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:39:05,394 INFO  L225             Difference]: With dead ends: 10622
[2023-12-25 14:39:05,394 INFO  L226             Difference]: Without dead ends: 7627
[2023-12-25 14:39:05,400 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:39:05,400 INFO  L413           NwaCegarLoop]: 3752 mSDtfsCounter, 5728 mSDsluCounter, 16462 mSDsCounter, 0 mSdLazyCounter, 4359 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5728 SdHoareTripleChecker+Valid, 20214 SdHoareTripleChecker+Invalid, 4515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 4359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2023-12-25 14:39:05,401 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5728 Valid, 20214 Invalid, 4515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 4359 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2023-12-25 14:39:05,407 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7627 states.
[2023-12-25 14:39:05,462 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7627 to 4126.
[2023-12-25 14:39:05,467 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4126 states, 4125 states have (on average 1.6465454545454545) internal successors, (6792), 4125 states have internal predecessors, (6792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:39:05,474 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4126 states to 4126 states and 6792 transitions.
[2023-12-25 14:39:05,474 INFO  L78                 Accepts]: Start accepts. Automaton has 4126 states and 6792 transitions. Word has length 1949
[2023-12-25 14:39:05,474 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:39:05,474 INFO  L495      AbstractCegarLoop]: Abstraction has 4126 states and 6792 transitions.
[2023-12-25 14:39:05,475 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 324.8333333333333) internal successors, (1949), 6 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:39:05,476 INFO  L276                IsEmpty]: Start isEmpty. Operand 4126 states and 6792 transitions.
[2023-12-25 14:39:05,504 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1951
[2023-12-25 14:39:05,504 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:39:05,505 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:39:05,506 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-12-25 14:39:05,506 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:39:05,506 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:39:05,506 INFO  L85        PathProgramCache]: Analyzing trace with hash 1207567887, now seen corresponding path program 1 times
[2023-12-25 14:39:05,507 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:39:05,507 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066557868]
[2023-12-25 14:39:05,507 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:39:05,507 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:39:10,224 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:39:12,356 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:39:12,357 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:39:12,357 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066557868]
[2023-12-25 14:39:12,357 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066557868] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:39:12,357 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:39:12,357 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-25 14:39:12,357 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98930475]
[2023-12-25 14:39:12,357 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:39:12,359 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 14:39:12,359 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:39:12,361 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 14:39:12,361 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:39:12,361 INFO  L87              Difference]: Start difference. First operand 4126 states and 6792 transitions. Second operand  has 6 states, 6 states have (on average 325.0) internal successors, (1950), 6 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:39:14,328 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:39:14,328 INFO  L93              Difference]: Finished difference Result 12416 states and 20412 transitions.
[2023-12-25 14:39:14,329 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:39:14,330 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 325.0) internal successors, (1950), 6 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1950
[2023-12-25 14:39:14,330 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:39:14,340 INFO  L225             Difference]: With dead ends: 12416
[2023-12-25 14:39:14,340 INFO  L226             Difference]: Without dead ends: 9004
[2023-12-25 14:39:14,345 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:39:14,345 INFO  L413           NwaCegarLoop]: 3750 mSDtfsCounter, 10153 mSDsluCounter, 13030 mSDsCounter, 0 mSdLazyCounter, 3286 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10153 SdHoareTripleChecker+Valid, 16780 SdHoareTripleChecker+Invalid, 3443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 3286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2023-12-25 14:39:14,346 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10153 Valid, 16780 Invalid, 3443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 3286 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2023-12-25 14:39:14,351 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9004 states.
[2023-12-25 14:39:14,413 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9004 to 5517.
[2023-12-25 14:39:14,419 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5517 states, 5516 states have (on average 1.6375997099347352) internal successors, (9033), 5516 states have internal predecessors, (9033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:39:14,426 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5517 states to 5517 states and 9033 transitions.
[2023-12-25 14:39:14,426 INFO  L78                 Accepts]: Start accepts. Automaton has 5517 states and 9033 transitions. Word has length 1950
[2023-12-25 14:39:14,426 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:39:14,426 INFO  L495      AbstractCegarLoop]: Abstraction has 5517 states and 9033 transitions.
[2023-12-25 14:39:14,427 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 325.0) internal successors, (1950), 6 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:39:14,427 INFO  L276                IsEmpty]: Start isEmpty. Operand 5517 states and 9033 transitions.
[2023-12-25 14:39:14,457 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1952
[2023-12-25 14:39:14,457 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:39:14,458 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 14:39:14,458 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2023-12-25 14:39:14,458 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:39:14,459 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:39:14,459 INFO  L85        PathProgramCache]: Analyzing trace with hash -1603377837, now seen corresponding path program 1 times
[2023-12-25 14:39:14,459 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:39:14,459 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447387582]
[2023-12-25 14:39:14,460 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:39:14,460 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:39:18,771 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:39:21,045 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:39:21,046 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:39:21,046 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447387582]
[2023-12-25 14:39:21,048 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447387582] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:39:21,048 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:39:21,048 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-25 14:39:21,048 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784669063]
[2023-12-25 14:39:21,048 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:39:21,050 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 14:39:21,050 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:39:21,052 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 14:39:21,052 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:39:21,053 INFO  L87              Difference]: Start difference. First operand 5517 states and 9033 transitions. Second operand  has 6 states, 6 states have (on average 325.1666666666667) internal successors, (1951), 6 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:39:23,076 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:39:23,076 INFO  L93              Difference]: Finished difference Result 16042 states and 26249 transitions.
[2023-12-25 14:39:23,076 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:39:23,077 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 325.1666666666667) internal successors, (1951), 6 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1951
[2023-12-25 14:39:23,077 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:39:23,092 INFO  L225             Difference]: With dead ends: 16042
[2023-12-25 14:39:23,092 INFO  L226             Difference]: Without dead ends: 11784
[2023-12-25 14:39:23,097 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:39:23,098 INFO  L413           NwaCegarLoop]: 3748 mSDtfsCounter, 10143 mSDsluCounter, 13005 mSDsCounter, 0 mSdLazyCounter, 3259 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10143 SdHoareTripleChecker+Valid, 16753 SdHoareTripleChecker+Invalid, 3417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 3259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2023-12-25 14:39:23,098 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10143 Valid, 16753 Invalid, 3417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 3259 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2023-12-25 14:39:23,105 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11784 states.
[2023-12-25 14:39:23,182 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11784 to 8311.
[2023-12-25 14:39:23,191 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8311 states, 8310 states have (on average 1.6287605294825511) internal successors, (13535), 8310 states have internal predecessors, (13535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:39:23,202 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8311 states to 8311 states and 13535 transitions.
[2023-12-25 14:39:23,202 INFO  L78                 Accepts]: Start accepts. Automaton has 8311 states and 13535 transitions. Word has length 1951
[2023-12-25 14:39:23,203 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:39:23,203 INFO  L495      AbstractCegarLoop]: Abstraction has 8311 states and 13535 transitions.
[2023-12-25 14:39:23,203 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 325.1666666666667) internal successors, (1951), 6 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:39:23,204 INFO  L276                IsEmpty]: Start isEmpty. Operand 8311 states and 13535 transitions.
[2023-12-25 14:39:23,241 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1953
[2023-12-25 14:39:23,241 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:39:23,242 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 14:39:23,242 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2023-12-25 14:39:23,243 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:39:23,243 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:39:23,243 INFO  L85        PathProgramCache]: Analyzing trace with hash -843291965, now seen corresponding path program 1 times
[2023-12-25 14:39:23,243 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:39:23,243 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647042946]
[2023-12-25 14:39:23,244 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:39:23,244 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:39:27,237 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:39:29,667 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:39:29,667 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:39:29,667 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647042946]
[2023-12-25 14:39:29,667 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647042946] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:39:29,667 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:39:29,667 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-25 14:39:29,667 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932959285]
[2023-12-25 14:39:29,667 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:39:29,669 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 14:39:29,669 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:39:29,670 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 14:39:29,670 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:39:29,670 INFO  L87              Difference]: Start difference. First operand 8311 states and 13535 transitions. Second operand  has 6 states, 6 states have (on average 325.3333333333333) internal successors, (1952), 6 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:39:32,615 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:39:32,615 INFO  L93              Difference]: Finished difference Result 23329 states and 37981 transitions.
[2023-12-25 14:39:32,616 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:39:32,616 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 325.3333333333333) internal successors, (1952), 6 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1952
[2023-12-25 14:39:32,616 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:39:32,633 INFO  L225             Difference]: With dead ends: 23329
[2023-12-25 14:39:32,633 INFO  L226             Difference]: Without dead ends: 17370
[2023-12-25 14:39:32,641 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:39:32,641 INFO  L413           NwaCegarLoop]: 3746 mSDtfsCounter, 5710 mSDsluCounter, 16456 mSDsCounter, 0 mSdLazyCounter, 4362 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5710 SdHoareTripleChecker+Valid, 20202 SdHoareTripleChecker+Invalid, 4521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 4362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2023-12-25 14:39:32,641 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5710 Valid, 20202 Invalid, 4521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 4362 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2023-12-25 14:39:32,653 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17370 states.
[2023-12-25 14:39:32,802 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17370 to 13911.
[2023-12-25 14:39:32,819 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13911 states, 13910 states have (on average 1.6217828900071891) internal successors, (22559), 13910 states have internal predecessors, (22559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:39:32,841 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13911 states to 13911 states and 22559 transitions.
[2023-12-25 14:39:32,842 INFO  L78                 Accepts]: Start accepts. Automaton has 13911 states and 22559 transitions. Word has length 1952
[2023-12-25 14:39:32,842 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:39:32,842 INFO  L495      AbstractCegarLoop]: Abstraction has 13911 states and 22559 transitions.
[2023-12-25 14:39:32,843 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 325.3333333333333) internal successors, (1952), 6 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:39:32,843 INFO  L276                IsEmpty]: Start isEmpty. Operand 13911 states and 22559 transitions.
[2023-12-25 14:39:32,927 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1954
[2023-12-25 14:39:32,927 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:39:32,929 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:39:32,929 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2023-12-25 14:39:32,929 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:39:32,929 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:39:32,930 INFO  L85        PathProgramCache]: Analyzing trace with hash 1519305095, now seen corresponding path program 1 times
[2023-12-25 14:39:32,930 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:39:32,930 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464314723]
[2023-12-25 14:39:32,930 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:39:32,930 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:39:37,853 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:39:40,026 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:39:40,027 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:39:40,027 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464314723]
[2023-12-25 14:39:40,027 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464314723] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:39:40,027 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:39:40,027 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-25 14:39:40,027 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920528789]
[2023-12-25 14:39:40,027 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:39:40,028 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 14:39:40,028 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:39:40,030 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 14:39:40,030 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:39:40,030 INFO  L87              Difference]: Start difference. First operand 13911 states and 22559 transitions. Second operand  has 6 states, 6 states have (on average 325.5) internal successors, (1953), 6 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:39:43,066 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:39:43,066 INFO  L93              Difference]: Finished difference Result 37938 states and 61503 transitions.
[2023-12-25 14:39:43,066 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:39:43,067 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 325.5) internal successors, (1953), 6 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1953
[2023-12-25 14:39:43,067 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:39:43,091 INFO  L225             Difference]: With dead ends: 37938
[2023-12-25 14:39:43,092 INFO  L226             Difference]: Without dead ends: 28568
[2023-12-25 14:39:43,105 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:39:43,106 INFO  L413           NwaCegarLoop]: 3744 mSDtfsCounter, 5704 mSDsluCounter, 16454 mSDsCounter, 0 mSdLazyCounter, 4363 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5704 SdHoareTripleChecker+Valid, 20198 SdHoareTripleChecker+Invalid, 4523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 4363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2023-12-25 14:39:43,106 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5704 Valid, 20198 Invalid, 4523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 4363 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2023-12-25 14:39:43,127 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 28568 states.
[2023-12-25 14:39:43,412 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 28568 to 25123.
[2023-12-25 14:39:43,435 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 25123 states, 25122 states have (on average 1.6171881219648117) internal successors, (40627), 25122 states have internal predecessors, (40627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:39:43,472 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25123 states to 25123 states and 40627 transitions.
[2023-12-25 14:39:43,473 INFO  L78                 Accepts]: Start accepts. Automaton has 25123 states and 40627 transitions. Word has length 1953
[2023-12-25 14:39:43,473 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:39:43,473 INFO  L495      AbstractCegarLoop]: Abstraction has 25123 states and 40627 transitions.
[2023-12-25 14:39:43,474 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 325.5) internal successors, (1953), 6 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:39:43,474 INFO  L276                IsEmpty]: Start isEmpty. Operand 25123 states and 40627 transitions.
[2023-12-25 14:39:43,527 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1955
[2023-12-25 14:39:43,527 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:39:43,528 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:39:43,528 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2023-12-25 14:39:43,529 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:39:43,529 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:39:43,529 INFO  L85        PathProgramCache]: Analyzing trace with hash 1673536375, now seen corresponding path program 1 times
[2023-12-25 14:39:43,529 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:39:43,529 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994595930]
[2023-12-25 14:39:43,529 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:39:43,530 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:39:48,119 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:39:51,096 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:39:51,097 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:39:51,097 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994595930]
[2023-12-25 14:39:51,097 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994595930] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:39:51,097 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:39:51,097 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:39:51,097 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798078791]
[2023-12-25 14:39:51,097 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:39:51,099 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 14:39:51,099 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:39:51,100 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 14:39:51,100 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:39:51,100 INFO  L87              Difference]: Start difference. First operand 25123 states and 40627 transitions. Second operand  has 6 states, 6 states have (on average 325.6666666666667) internal successors, (1954), 5 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:39:53,906 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:39:53,906 INFO  L93              Difference]: Finished difference Result 43871 states and 71026 transitions.
[2023-12-25 14:39:53,906 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:39:53,907 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 325.6666666666667) internal successors, (1954), 5 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1954
[2023-12-25 14:39:53,907 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:39:53,932 INFO  L225             Difference]: With dead ends: 43871
[2023-12-25 14:39:53,933 INFO  L226             Difference]: Without dead ends: 27670
[2023-12-25 14:39:53,948 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:39:53,948 INFO  L413           NwaCegarLoop]: 3494 mSDtfsCounter, 12986 mSDsluCounter, 10459 mSDsCounter, 0 mSdLazyCounter, 4688 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12986 SdHoareTripleChecker+Valid, 13953 SdHoareTripleChecker+Invalid, 4689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2023-12-25 14:39:53,949 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12986 Valid, 13953 Invalid, 4689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4688 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2023-12-25 14:39:53,963 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27670 states.
[2023-12-25 14:39:54,160 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27670 to 25119.
[2023-12-25 14:39:54,180 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 25119 states, 25118 states have (on average 1.6171669718926667) internal successors, (40620), 25118 states have internal predecessors, (40620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:39:54,212 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25119 states to 25119 states and 40620 transitions.
[2023-12-25 14:39:54,213 INFO  L78                 Accepts]: Start accepts. Automaton has 25119 states and 40620 transitions. Word has length 1954
[2023-12-25 14:39:54,213 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:39:54,213 INFO  L495      AbstractCegarLoop]: Abstraction has 25119 states and 40620 transitions.
[2023-12-25 14:39:54,214 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 325.6666666666667) internal successors, (1954), 5 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:39:54,214 INFO  L276                IsEmpty]: Start isEmpty. Operand 25119 states and 40620 transitions.
[2023-12-25 14:39:54,248 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1955
[2023-12-25 14:39:54,249 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:39:54,250 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:39:54,250 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2023-12-25 14:39:54,250 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:39:54,250 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:39:54,251 INFO  L85        PathProgramCache]: Analyzing trace with hash -378472395, now seen corresponding path program 1 times
[2023-12-25 14:39:54,251 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:39:54,251 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611454357]
[2023-12-25 14:39:54,251 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:39:54,251 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:39:58,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:40:01,375 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:40:01,376 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:40:01,376 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611454357]
[2023-12-25 14:40:01,376 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611454357] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:40:01,376 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:40:01,376 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-25 14:40:01,376 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136288755]
[2023-12-25 14:40:01,376 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:40:01,378 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 14:40:01,378 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:40:01,380 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 14:40:01,380 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:40:01,380 INFO  L87              Difference]: Start difference. First operand 25119 states and 40620 transitions. Second operand  has 6 states, 6 states have (on average 325.6666666666667) internal successors, (1954), 6 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:40:03,219 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:40:03,219 INFO  L93              Difference]: Finished difference Result 66330 states and 107211 transitions.
[2023-12-25 14:40:03,219 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:40:03,220 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 325.6666666666667) internal successors, (1954), 6 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1954
[2023-12-25 14:40:03,220 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:40:03,264 INFO  L225             Difference]: With dead ends: 66330
[2023-12-25 14:40:03,264 INFO  L226             Difference]: Without dead ends: 50133
[2023-12-25 14:40:03,283 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:40:03,284 INFO  L413           NwaCegarLoop]: 3741 mSDtfsCounter, 8721 mSDsluCounter, 11878 mSDsCounter, 0 mSdLazyCounter, 3133 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8721 SdHoareTripleChecker+Valid, 15619 SdHoareTripleChecker+Invalid, 3168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 3133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2023-12-25 14:40:03,285 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8721 Valid, 15619 Invalid, 3168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 3133 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2023-12-25 14:40:03,397 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 50133 states.
[2023-12-25 14:40:03,685 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 50133 to 47546.
[2023-12-25 14:40:03,725 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 47546 states, 47545 states have (on average 1.6144915343358923) internal successors, (76761), 47545 states have internal predecessors, (76761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:40:04,034 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 47546 states to 47546 states and 76761 transitions.
[2023-12-25 14:40:04,034 INFO  L78                 Accepts]: Start accepts. Automaton has 47546 states and 76761 transitions. Word has length 1954
[2023-12-25 14:40:04,035 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:40:04,035 INFO  L495      AbstractCegarLoop]: Abstraction has 47546 states and 76761 transitions.
[2023-12-25 14:40:04,035 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 325.6666666666667) internal successors, (1954), 6 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:40:04,035 INFO  L276                IsEmpty]: Start isEmpty. Operand 47546 states and 76761 transitions.
[2023-12-25 14:40:04,099 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1956
[2023-12-25 14:40:04,099 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:40:04,100 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:40:04,101 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2023-12-25 14:40:04,101 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:40:04,101 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:40:04,101 INFO  L85        PathProgramCache]: Analyzing trace with hash 148956349, now seen corresponding path program 1 times
[2023-12-25 14:40:04,102 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:40:04,102 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089907355]
[2023-12-25 14:40:04,102 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:40:04,102 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:40:09,411 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:40:12,259 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:40:12,259 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:40:12,259 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089907355]
[2023-12-25 14:40:12,259 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089907355] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:40:12,259 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:40:12,260 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:40:12,260 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955175884]
[2023-12-25 14:40:12,260 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:40:12,262 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 14:40:12,262 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:40:12,263 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 14:40:12,263 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:40:12,264 INFO  L87              Difference]: Start difference. First operand 47546 states and 76761 transitions. Second operand  has 6 states, 6 states have (on average 325.8333333333333) internal successors, (1955), 5 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:40:14,972 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:40:14,972 INFO  L93              Difference]: Finished difference Result 79938 states and 129068 transitions.
[2023-12-25 14:40:14,976 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:40:14,977 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 325.8333333333333) internal successors, (1955), 5 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1955
[2023-12-25 14:40:14,977 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:40:15,030 INFO  L225             Difference]: With dead ends: 79938
[2023-12-25 14:40:15,030 INFO  L226             Difference]: Without dead ends: 50079
[2023-12-25 14:40:15,057 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:40:15,058 INFO  L413           NwaCegarLoop]: 3493 mSDtfsCounter, 8774 mSDsluCounter, 10358 mSDsCounter, 0 mSdLazyCounter, 4508 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8774 SdHoareTripleChecker+Valid, 13851 SdHoareTripleChecker+Invalid, 4508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2023-12-25 14:40:15,058 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8774 Valid, 13851 Invalid, 4508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4508 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2023-12-25 14:40:15,089 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 50079 states.
[2023-12-25 14:40:15,371 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 50079 to 47547.
[2023-12-25 14:40:15,407 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 47547 states, 47546 states have (on average 1.6144786101880284) internal successors, (76762), 47546 states have internal predecessors, (76762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:40:15,462 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 47547 states to 47547 states and 76762 transitions.
[2023-12-25 14:40:15,462 INFO  L78                 Accepts]: Start accepts. Automaton has 47547 states and 76762 transitions. Word has length 1955
[2023-12-25 14:40:15,462 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:40:15,462 INFO  L495      AbstractCegarLoop]: Abstraction has 47547 states and 76762 transitions.
[2023-12-25 14:40:15,463 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 325.8333333333333) internal successors, (1955), 5 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:40:15,463 INFO  L276                IsEmpty]: Start isEmpty. Operand 47547 states and 76762 transitions.
[2023-12-25 14:40:15,531 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1956
[2023-12-25 14:40:15,531 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:40:15,533 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:40:15,533 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2023-12-25 14:40:15,533 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:40:15,533 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:40:15,534 INFO  L85        PathProgramCache]: Analyzing trace with hash -683292549, now seen corresponding path program 1 times
[2023-12-25 14:40:15,534 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:40:15,534 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234765935]
[2023-12-25 14:40:15,534 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:40:15,534 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:40:20,746 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:40:22,860 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:40:22,860 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:40:22,860 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234765935]
[2023-12-25 14:40:22,861 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234765935] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:40:22,861 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:40:22,861 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-25 14:40:22,861 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778310386]
[2023-12-25 14:40:22,861 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:40:22,862 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 14:40:22,862 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:40:22,864 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 14:40:22,864 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:40:22,864 INFO  L87              Difference]: Start difference. First operand 47547 states and 76762 transitions. Second operand  has 6 states, 6 states have (on average 325.8333333333333) internal successors, (1955), 6 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:40:25,685 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:40:25,685 INFO  L93              Difference]: Finished difference Result 124852 states and 201439 transitions.
[2023-12-25 14:40:25,687 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:40:25,687 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 325.8333333333333) internal successors, (1955), 6 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1955
[2023-12-25 14:40:25,687 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:40:25,757 INFO  L225             Difference]: With dead ends: 124852
[2023-12-25 14:40:25,757 INFO  L226             Difference]: Without dead ends: 94992
[2023-12-25 14:40:25,783 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:40:25,784 INFO  L413           NwaCegarLoop]: 3739 mSDtfsCounter, 4437 mSDsluCounter, 15326 mSDsCounter, 0 mSdLazyCounter, 4233 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4437 SdHoareTripleChecker+Valid, 19065 SdHoareTripleChecker+Invalid, 4269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 4233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2023-12-25 14:40:25,784 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [4437 Valid, 19065 Invalid, 4269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 4233 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2023-12-25 14:40:25,832 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 94992 states.
[2023-12-25 14:40:26,434 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 94992 to 92414.
[2023-12-25 14:40:26,502 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 92414 states, 92413 states have (on average 1.6130306342181295) internal successors, (149065), 92413 states have internal predecessors, (149065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:40:27,140 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 92414 states to 92414 states and 149065 transitions.
[2023-12-25 14:40:27,140 INFO  L78                 Accepts]: Start accepts. Automaton has 92414 states and 149065 transitions. Word has length 1955
[2023-12-25 14:40:27,140 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:40:27,141 INFO  L495      AbstractCegarLoop]: Abstraction has 92414 states and 149065 transitions.
[2023-12-25 14:40:27,141 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 325.8333333333333) internal successors, (1955), 6 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:40:27,141 INFO  L276                IsEmpty]: Start isEmpty. Operand 92414 states and 149065 transitions.
[2023-12-25 14:40:27,266 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1957
[2023-12-25 14:40:27,266 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:40:27,277 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:40:27,277 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2023-12-25 14:40:27,277 INFO  L420      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:40:27,292 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:40:27,293 INFO  L85        PathProgramCache]: Analyzing trace with hash 1486059883, now seen corresponding path program 1 times
[2023-12-25 14:40:27,293 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:40:27,293 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733965178]
[2023-12-25 14:40:27,293 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:40:27,293 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:40:32,228 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:40:35,315 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:40:35,316 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:40:35,316 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733965178]
[2023-12-25 14:40:35,316 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733965178] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:40:35,316 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:40:35,316 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:40:35,316 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660565519]
[2023-12-25 14:40:35,316 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:40:35,318 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 14:40:35,318 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:40:35,320 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 14:40:35,320 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:40:35,320 INFO  L87              Difference]: Start difference. First operand 92414 states and 149065 transitions. Second operand  has 6 states, 6 states have (on average 326.0) internal successors, (1956), 5 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:40:38,317 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:40:38,318 INFO  L93              Difference]: Finished difference Result 152132 states and 245250 transitions.
[2023-12-25 14:40:38,318 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:40:38,318 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 326.0) internal successors, (1956), 5 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1956
[2023-12-25 14:40:38,319 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:40:38,409 INFO  L225             Difference]: With dead ends: 152132
[2023-12-25 14:40:38,409 INFO  L226             Difference]: Without dead ends: 94938
[2023-12-25 14:40:38,444 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:40:38,444 INFO  L413           NwaCegarLoop]: 3492 mSDtfsCounter, 12971 mSDsluCounter, 10455 mSDsCounter, 0 mSdLazyCounter, 4664 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12971 SdHoareTripleChecker+Valid, 13947 SdHoareTripleChecker+Invalid, 4664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2023-12-25 14:40:38,444 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12971 Valid, 13947 Invalid, 4664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4664 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2023-12-25 14:40:38,514 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 94938 states.
[2023-12-25 14:40:39,300 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 94938 to 92415.
[2023-12-25 14:40:39,369 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 92415 states, 92414 states have (on average 1.6130240006925358) internal successors, (149066), 92414 states have internal predecessors, (149066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:40:39,741 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 92415 states to 92415 states and 149066 transitions.
[2023-12-25 14:40:39,741 INFO  L78                 Accepts]: Start accepts. Automaton has 92415 states and 149066 transitions. Word has length 1956
[2023-12-25 14:40:39,741 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:40:39,742 INFO  L495      AbstractCegarLoop]: Abstraction has 92415 states and 149066 transitions.
[2023-12-25 14:40:39,742 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 326.0) internal successors, (1956), 5 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:40:39,742 INFO  L276                IsEmpty]: Start isEmpty. Operand 92415 states and 149066 transitions.
[2023-12-25 14:40:39,846 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1957
[2023-12-25 14:40:39,846 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:40:39,847 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 14:40:39,847 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2023-12-25 14:40:39,847 INFO  L420      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:40:39,847 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:40:39,848 INFO  L85        PathProgramCache]: Analyzing trace with hash 1376513065, now seen corresponding path program 1 times
[2023-12-25 14:40:39,848 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:40:39,848 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461937425]
[2023-12-25 14:40:39,848 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:40:39,848 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:40:44,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:40:46,817 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:40:46,818 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:40:46,818 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461937425]
[2023-12-25 14:40:46,818 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461937425] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:40:46,818 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:40:46,818 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-25 14:40:46,818 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639778067]
[2023-12-25 14:40:46,818 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:40:46,820 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 14:40:46,820 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:40:46,821 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 14:40:46,821 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:40:46,821 INFO  L87              Difference]: Start difference. First operand 92415 states and 149066 transitions. Second operand  has 6 states, 6 states have (on average 326.0) internal successors, (1956), 6 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:40:49,763 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:40:49,763 INFO  L93              Difference]: Finished difference Result 241926 states and 389945 transitions.
[2023-12-25 14:40:49,764 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:40:49,764 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 326.0) internal successors, (1956), 6 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1956
[2023-12-25 14:40:49,765 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:40:49,938 INFO  L225             Difference]: With dead ends: 241926
[2023-12-25 14:40:49,939 INFO  L226             Difference]: Without dead ends: 184731
[2023-12-25 14:40:50,010 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:40:50,011 INFO  L413           NwaCegarLoop]: 3737 mSDtfsCounter, 4431 mSDsluCounter, 15324 mSDsCounter, 0 mSdLazyCounter, 4234 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4431 SdHoareTripleChecker+Valid, 19061 SdHoareTripleChecker+Invalid, 4271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 4234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2023-12-25 14:40:50,011 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [4431 Valid, 19061 Invalid, 4271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 4234 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2023-12-25 14:40:50,112 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 184731 states.
[2023-12-25 14:40:52,005 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 184731 to 182162.
[2023-12-25 14:40:52,129 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 182162 states, 182161 states have (on average 1.6122715619699057) internal successors, (293693), 182161 states have internal predecessors, (293693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:40:52,677 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 182162 states to 182162 states and 293693 transitions.
[2023-12-25 14:40:52,677 INFO  L78                 Accepts]: Start accepts. Automaton has 182162 states and 293693 transitions. Word has length 1956
[2023-12-25 14:40:52,678 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:40:52,678 INFO  L495      AbstractCegarLoop]: Abstraction has 182162 states and 293693 transitions.
[2023-12-25 14:40:52,678 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 326.0) internal successors, (1956), 6 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:40:52,679 INFO  L276                IsEmpty]: Start isEmpty. Operand 182162 states and 293693 transitions.
[2023-12-25 14:40:52,820 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1958
[2023-12-25 14:40:52,820 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:40:52,821 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:40:52,821 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2023-12-25 14:40:52,821 INFO  L420      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:40:52,822 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:40:52,822 INFO  L85        PathProgramCache]: Analyzing trace with hash 1381851569, now seen corresponding path program 1 times
[2023-12-25 14:40:52,822 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:40:52,822 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063722549]
[2023-12-25 14:40:52,822 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:40:52,822 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:40:57,818 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:41:00,808 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:41:00,808 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:41:00,808 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063722549]
[2023-12-25 14:41:00,808 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063722549] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:41:00,808 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:41:00,809 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:41:00,809 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788953742]
[2023-12-25 14:41:00,809 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:41:00,810 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 14:41:00,810 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:41:00,811 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 14:41:00,811 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:41:00,812 INFO  L87              Difference]: Start difference. First operand 182162 states and 293693 transitions. Second operand  has 6 states, 6 states have (on average 326.1666666666667) internal successors, (1957), 5 states have internal predecessors, (1957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:41:03,961 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:41:03,961 INFO  L93              Difference]: Finished difference Result 296550 states and 477664 transitions.
[2023-12-25 14:41:03,961 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:41:03,962 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 326.1666666666667) internal successors, (1957), 5 states have internal predecessors, (1957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1957
[2023-12-25 14:41:03,962 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:41:04,360 INFO  L225             Difference]: With dead ends: 296550
[2023-12-25 14:41:04,361 INFO  L226             Difference]: Without dead ends: 184677
[2023-12-25 14:41:04,428 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:41:04,429 INFO  L413           NwaCegarLoop]: 3491 mSDtfsCounter, 12964 mSDsluCounter, 10453 mSDsCounter, 0 mSdLazyCounter, 4652 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12964 SdHoareTripleChecker+Valid, 13944 SdHoareTripleChecker+Invalid, 4652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2023-12-25 14:41:04,430 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12964 Valid, 13944 Invalid, 4652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4652 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2023-12-25 14:41:04,539 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 184677 states.
[2023-12-25 14:41:06,125 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 184677 to 182163.
[2023-12-25 14:41:06,245 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 182163 states, 182162 states have (on average 1.6122682008322262) internal successors, (293694), 182162 states have internal predecessors, (293694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:41:07,246 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 182163 states to 182163 states and 293694 transitions.
[2023-12-25 14:41:07,247 INFO  L78                 Accepts]: Start accepts. Automaton has 182163 states and 293694 transitions. Word has length 1957
[2023-12-25 14:41:07,247 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:41:07,247 INFO  L495      AbstractCegarLoop]: Abstraction has 182163 states and 293694 transitions.
[2023-12-25 14:41:07,248 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 326.1666666666667) internal successors, (1957), 5 states have internal predecessors, (1957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:41:07,248 INFO  L276                IsEmpty]: Start isEmpty. Operand 182163 states and 293694 transitions.
[2023-12-25 14:41:07,418 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1958
[2023-12-25 14:41:07,418 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:41:07,419 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:07,419 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2023-12-25 14:41:07,419 INFO  L420      AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:41:07,420 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:41:07,420 INFO  L85        PathProgramCache]: Analyzing trace with hash 1963516783, now seen corresponding path program 1 times
[2023-12-25 14:41:07,420 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:41:07,420 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240542726]
[2023-12-25 14:41:07,421 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:41:07,421 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:41:12,576 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:41:14,606 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:41:14,607 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:41:14,607 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240542726]
[2023-12-25 14:41:14,607 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240542726] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:41:14,607 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:41:14,607 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-25 14:41:14,607 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331289510]
[2023-12-25 14:41:14,607 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:41:14,610 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 14:41:14,610 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:41:14,611 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 14:41:14,612 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:41:14,612 INFO  L87              Difference]: Start difference. First operand 182163 states and 293694 transitions. Second operand  has 6 states, 6 states have (on average 326.1666666666667) internal successors, (1957), 6 states have internal predecessors, (1957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:41:17,766 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:41:17,772 INFO  L93              Difference]: Finished difference Result 476104 states and 767007 transitions.
[2023-12-25 14:41:17,772 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:41:17,773 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 326.1666666666667) internal successors, (1957), 6 states have internal predecessors, (1957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1957
[2023-12-25 14:41:17,773 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:41:18,112 INFO  L225             Difference]: With dead ends: 476104
[2023-12-25 14:41:18,112 INFO  L226             Difference]: Without dead ends: 364230
[2023-12-25 14:41:18,199 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:41:18,215 INFO  L413           NwaCegarLoop]: 3735 mSDtfsCounter, 8682 mSDsluCounter, 11875 mSDsCounter, 0 mSdLazyCounter, 3139 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8682 SdHoareTripleChecker+Valid, 15610 SdHoareTripleChecker+Invalid, 3177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 3139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2023-12-25 14:41:18,217 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8682 Valid, 15610 Invalid, 3177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 3139 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2023-12-25 14:41:18,400 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 364230 states.
[2023-12-25 14:41:21,956 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 364230 to 361670.
[2023-12-25 14:41:22,234 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 361670 states, 361669 states have (on average 1.6118854532735734) internal successors, (582969), 361669 states have internal predecessors, (582969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:41:23,206 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 361670 states to 361670 states and 582969 transitions.
[2023-12-25 14:41:23,207 INFO  L78                 Accepts]: Start accepts. Automaton has 361670 states and 582969 transitions. Word has length 1957
[2023-12-25 14:41:23,207 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:41:23,207 INFO  L495      AbstractCegarLoop]: Abstraction has 361670 states and 582969 transitions.
[2023-12-25 14:41:23,207 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 326.1666666666667) internal successors, (1957), 6 states have internal predecessors, (1957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:41:23,207 INFO  L276                IsEmpty]: Start isEmpty. Operand 361670 states and 582969 transitions.
[2023-12-25 14:41:23,820 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1959
[2023-12-25 14:41:23,820 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:41:23,821 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 14:41:23,821 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2023-12-25 14:41:23,821 INFO  L420      AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:41:23,821 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:41:23,822 INFO  L85        PathProgramCache]: Analyzing trace with hash -1881791649, now seen corresponding path program 1 times
[2023-12-25 14:41:23,822 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:41:23,822 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984209711]
[2023-12-25 14:41:23,822 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:41:23,823 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:41:28,611 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:41:31,521 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:41:31,522 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:41:31,522 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984209711]
[2023-12-25 14:41:31,522 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984209711] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:41:31,522 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:41:31,522 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:41:31,522 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557661807]
[2023-12-25 14:41:31,522 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:41:31,524 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 14:41:31,524 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:41:31,525 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 14:41:31,525 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:41:31,525 INFO  L87              Difference]: Start difference. First operand 361670 states and 582969 transitions. Second operand  has 6 states, 6 states have (on average 326.3333333333333) internal successors, (1958), 5 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:41:35,571 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:41:35,571 INFO  L93              Difference]: Finished difference Result 585416 states and 942542 transitions.
[2023-12-25 14:41:35,572 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:41:35,572 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 326.3333333333333) internal successors, (1958), 5 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1958
[2023-12-25 14:41:35,572 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:41:35,948 INFO  L225             Difference]: With dead ends: 585416
[2023-12-25 14:41:35,949 INFO  L226             Difference]: Without dead ends: 364176
[2023-12-25 14:41:36,093 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:41:36,093 INFO  L413           NwaCegarLoop]: 3490 mSDtfsCounter, 12959 mSDsluCounter, 10355 mSDsCounter, 0 mSdLazyCounter, 4484 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12959 SdHoareTripleChecker+Valid, 13845 SdHoareTripleChecker+Invalid, 4484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2023-12-25 14:41:36,093 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12959 Valid, 13845 Invalid, 4484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4484 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]