/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-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-15 23:28:24,869 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-15 23:28:24,943 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-12-15 23:28:24,946 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-15 23:28:24,947 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-15 23:28:24,970 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-15 23:28:24,971 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-15 23:28:24,972 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-15 23:28:24,972 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-15 23:28:24,975 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-15 23:28:24,976 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-15 23:28:24,976 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-15 23:28:24,977 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-15 23:28:24,978 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-15 23:28:24,978 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-15 23:28:24,978 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-15 23:28:24,978 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-15 23:28:24,978 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-15 23:28:24,979 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-15 23:28:24,979 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-15 23:28:24,980 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-15 23:28:24,980 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-15 23:28:24,980 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-15 23:28:24,980 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-15 23:28:24,980 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-15 23:28:24,981 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-15 23:28:24,981 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-15 23:28:24,981 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-15 23:28:24,981 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-15 23:28:24,982 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-15 23:28:24,982 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-15 23:28:24,982 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-15 23:28:24,983 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-15 23:28:24,983 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-15 23:28:24,983 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-15 23:28:24,983 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-15 23:28:24,983 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-15 23:28:24,983 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-15 23:28:24,983 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-15 23:28:24,984 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-15 23:28:24,984 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-15 23:28:24,984 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-15 23:28:24,984 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-15 23:28:24,984 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-15 23:28:25,199 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-15 23:28:25,220 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-15 23:28:25,222 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-15 23:28:25,223 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-15 23:28:25,223 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-15 23:28:25,224 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c
[2023-12-15 23:28:26,386 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-15 23:28:26,669 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-15 23:28:26,669 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c
[2023-12-15 23:28:26,686 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d46c0e15d/493e994831644672a8bbe554c86a9244/FLAG4f482de52
[2023-12-15 23:28:26,696 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d46c0e15d/493e994831644672a8bbe554c86a9244
[2023-12-15 23:28:26,698 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-15 23:28:26,699 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-15 23:28:26,700 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-15 23:28:26,700 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-15 23:28:26,703 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-15 23:28:26,704 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:28:26" (1/1) ...
[2023-12-15 23:28:26,705 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@707511fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:26, skipping insertion in model container
[2023-12-15 23:28:26,705 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:28:26" (1/1) ...
[2023-12-15 23:28:26,784 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-15 23:28:27,279 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[50207,50220]
[2023-12-15 23:28:27,531 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-15 23:28:27,546 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-15 23:28:27,810 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[50207,50220]
[2023-12-15 23:28:27,944 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-15 23:28:27,966 INFO  L206         MainTranslator]: Completed translation
[2023-12-15 23:28:27,967 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:27 WrapperNode
[2023-12-15 23:28:27,967 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-15 23:28:27,967 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-15 23:28:27,968 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-15 23:28:27,968 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-15 23:28:27,972 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:27" (1/1) ...
[2023-12-15 23:28:28,006 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:27" (1/1) ...
[2023-12-15 23:28:28,132 INFO  L138                Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 4983
[2023-12-15 23:28:28,133 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-15 23:28:28,133 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-15 23:28:28,133 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-15 23:28:28,133 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-15 23:28:28,141 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:27" (1/1) ...
[2023-12-15 23:28:28,142 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:27" (1/1) ...
[2023-12-15 23:28:28,162 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:27" (1/1) ...
[2023-12-15 23:28:28,225 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].
[2023-12-15 23:28:28,225 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:27" (1/1) ...
[2023-12-15 23:28:28,225 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:27" (1/1) ...
[2023-12-15 23:28:28,281 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:27" (1/1) ...
[2023-12-15 23:28:28,349 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:27" (1/1) ...
[2023-12-15 23:28:28,367 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:27" (1/1) ...
[2023-12-15 23:28:28,381 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:27" (1/1) ...
[2023-12-15 23:28:28,398 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-15 23:28:28,398 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-15 23:28:28,399 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-15 23:28:28,399 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-15 23:28:28,399 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:27" (1/1) ...
[2023-12-15 23:28:28,403 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-15 23:28:28,412 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-15 23:28:28,429 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)
[2023-12-15 23:28:28,433 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
[2023-12-15 23:28:28,454 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-15 23:28:28,455 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-15 23:28:28,455 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-15 23:28:28,455 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-15 23:28:28,658 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-15 23:28:28,659 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-15 23:28:30,689 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-15 23:28:30,738 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-15 23:28:30,738 INFO  L309             CfgBuilder]: Removed 0 assume(true) statements.
[2023-12-15 23:28:30,739 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:28:30 BoogieIcfgContainer
[2023-12-15 23:28:30,739 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-15 23:28:30,741 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-15 23:28:30,741 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-15 23:28:30,743 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-15 23:28:30,743 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:28:26" (1/3) ...
[2023-12-15 23:28:30,743 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51bcdcba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:28:30, skipping insertion in model container
[2023-12-15 23:28:30,744 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:27" (2/3) ...
[2023-12-15 23:28:30,744 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51bcdcba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:28:30, skipping insertion in model container
[2023-12-15 23:28:30,744 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:28:30" (3/3) ...
[2023-12-15 23:28:30,745 INFO  L112   eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c
[2023-12-15 23:28:30,756 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-15 23:28:30,756 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-15 23:28:30,801 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-15 23:28:30,807 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;@62dd7c21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-15 23:28:30,807 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-15 23:28:30,815 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 1333 states, 1331 states have (on average 1.8069120961682945) internal successors, (2405), 1332 states have internal predecessors, (2405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:30,840 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 472
[2023-12-15 23:28:30,840 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-15 23:28:30,841 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 23:28:30,841 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 23:28:30,846 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 23:28:30,846 INFO  L85        PathProgramCache]: Analyzing trace with hash -1336231177, now seen corresponding path program 1 times
[2023-12-15 23:28:30,852 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 23:28:30,852 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330755140]
[2023-12-15 23:28:30,853 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 23:28:30,853 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 23:28:31,520 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 23:28:32,390 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-15 23:28:32,391 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 23:28:32,391 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330755140]
[2023-12-15 23:28:32,392 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330755140] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-15 23:28:32,392 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-15 23:28:32,392 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-15 23:28:32,393 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326876486]
[2023-12-15 23:28:32,395 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-15 23:28:32,398 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-15 23:28:32,398 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 23:28:32,417 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-15 23:28:32,418 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-15 23:28:32,422 INFO  L87              Difference]: Start difference. First operand  has 1333 states, 1331 states have (on average 1.8069120961682945) internal successors, (2405), 1332 states have internal predecessors, (2405), 0 states have call successors, (0), 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 117.75) internal successors, (471), 3 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:32,674 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 23:28:32,675 INFO  L93              Difference]: Finished difference Result 3956 states and 7140 transitions.
[2023-12-15 23:28:32,677 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-15 23:28:32,678 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 117.75) internal successors, (471), 3 states have internal predecessors, (471), 0 states have call successors, (0), 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 471
[2023-12-15 23:28:32,679 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 23:28:32,702 INFO  L225             Difference]: With dead ends: 3956
[2023-12-15 23:28:32,702 INFO  L226             Difference]: Without dead ends: 2631
[2023-12-15 23:28:32,710 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-15 23:28:32,714 INFO  L413           NwaCegarLoop]: 3688 mSDtfsCounter, 5577 mSDsluCounter, 2322 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5577 SdHoareTripleChecker+Valid, 6010 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-15 23:28:32,715 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5577 Valid, 6010 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-15 23:28:32,736 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2631 states.
[2023-12-15 23:28:32,808 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 2629.
[2023-12-15 23:28:32,812 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2629 states, 2628 states have (on average 1.6400304414003044) internal successors, (4310), 2628 states have internal predecessors, (4310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:32,818 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 4310 transitions.
[2023-12-15 23:28:32,819 INFO  L78                 Accepts]: Start accepts. Automaton has 2629 states and 4310 transitions. Word has length 471
[2023-12-15 23:28:32,819 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-15 23:28:32,819 INFO  L495      AbstractCegarLoop]: Abstraction has 2629 states and 4310 transitions.
[2023-12-15 23:28:32,820 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 117.75) internal successors, (471), 3 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:32,820 INFO  L276                IsEmpty]: Start isEmpty. Operand 2629 states and 4310 transitions.
[2023-12-15 23:28:32,827 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 474
[2023-12-15 23:28:32,827 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-15 23:28:32,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 23:28:32,828 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-15 23:28:32,828 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 23:28:32,829 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 23:28:32,829 INFO  L85        PathProgramCache]: Analyzing trace with hash 1387289788, now seen corresponding path program 1 times
[2023-12-15 23:28:32,829 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 23:28:32,829 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145119186]
[2023-12-15 23:28:32,829 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 23:28:32,830 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 23:28:32,882 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 23:28:33,087 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-15 23:28:33,088 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 23:28:33,088 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145119186]
[2023-12-15 23:28:33,088 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145119186] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-15 23:28:33,088 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-15 23:28:33,088 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-15 23:28:33,089 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484943154]
[2023-12-15 23:28:33,089 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-15 23:28:33,090 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-15 23:28:33,090 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 23:28:33,134 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-15 23:28:33,134 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-15 23:28:33,134 INFO  L87              Difference]: Start difference. First operand 2629 states and 4310 transitions. Second operand  has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:33,239 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 23:28:33,239 INFO  L93              Difference]: Finished difference Result 7627 states and 12461 transitions.
[2023-12-15 23:28:33,240 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-15 23:28:33,240 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 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 473
[2023-12-15 23:28:33,241 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 23:28:33,255 INFO  L225             Difference]: With dead ends: 7627
[2023-12-15 23:28:33,255 INFO  L226             Difference]: Without dead ends: 5207
[2023-12-15 23:28:33,259 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-15 23:28:33,260 INFO  L413           NwaCegarLoop]: 4220 mSDtfsCounter, 1949 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1949 SdHoareTripleChecker+Valid, 6345 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-15 23:28:33,261 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1949 Valid, 6345 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-15 23:28:33,266 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5207 states.
[2023-12-15 23:28:33,322 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5207 to 5205.
[2023-12-15 23:28:33,328 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5205 states, 5204 states have (on average 1.6341275941583397) internal successors, (8504), 5204 states have internal predecessors, (8504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:33,340 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 8504 transitions.
[2023-12-15 23:28:33,340 INFO  L78                 Accepts]: Start accepts. Automaton has 5205 states and 8504 transitions. Word has length 473
[2023-12-15 23:28:33,340 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-15 23:28:33,341 INFO  L495      AbstractCegarLoop]: Abstraction has 5205 states and 8504 transitions.
[2023-12-15 23:28:33,341 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:33,341 INFO  L276                IsEmpty]: Start isEmpty. Operand 5205 states and 8504 transitions.
[2023-12-15 23:28:33,352 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 475
[2023-12-15 23:28:33,352 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-15 23:28:33,353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 23:28:33,353 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-15 23:28:33,353 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 23:28:33,354 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 23:28:33,354 INFO  L85        PathProgramCache]: Analyzing trace with hash -255591210, now seen corresponding path program 1 times
[2023-12-15 23:28:33,354 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 23:28:33,354 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228529774]
[2023-12-15 23:28:33,354 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 23:28:33,354 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 23:28:33,389 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 23:28:33,535 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-15 23:28:33,535 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 23:28:33,536 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228529774]
[2023-12-15 23:28:33,537 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228529774] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-15 23:28:33,537 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-15 23:28:33,537 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-15 23:28:33,537 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393946942]
[2023-12-15 23:28:33,537 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-15 23:28:33,538 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-15 23:28:33,538 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 23:28:33,539 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-15 23:28:33,541 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-15 23:28:33,542 INFO  L87              Difference]: Start difference. First operand 5205 states and 8504 transitions. Second operand  has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:33,640 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 23:28:33,641 INFO  L93              Difference]: Finished difference Result 15528 states and 25354 transitions.
[2023-12-15 23:28:33,641 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-15 23:28:33,642 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 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 474
[2023-12-15 23:28:33,642 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 23:28:33,673 INFO  L225             Difference]: With dead ends: 15528
[2023-12-15 23:28:33,673 INFO  L226             Difference]: Without dead ends: 10370
[2023-12-15 23:28:33,684 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-15 23:28:33,687 INFO  L413           NwaCegarLoop]: 4338 mSDtfsCounter, 2172 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 6509 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-15 23:28:33,688 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2172 Valid, 6509 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-15 23:28:33,697 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10370 states.
[2023-12-15 23:28:33,889 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10370 to 5252.
[2023-12-15 23:28:33,897 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5252 states, 5251 states have (on average 1.6335936012188155) internal successors, (8578), 5251 states have internal predecessors, (8578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:33,909 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5252 states to 5252 states and 8578 transitions.
[2023-12-15 23:28:33,910 INFO  L78                 Accepts]: Start accepts. Automaton has 5252 states and 8578 transitions. Word has length 474
[2023-12-15 23:28:33,911 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-15 23:28:33,913 INFO  L495      AbstractCegarLoop]: Abstraction has 5252 states and 8578 transitions.
[2023-12-15 23:28:33,914 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:33,916 INFO  L276                IsEmpty]: Start isEmpty. Operand 5252 states and 8578 transitions.
[2023-12-15 23:28:33,931 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 476
[2023-12-15 23:28:33,931 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-15 23:28:33,932 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 23:28:33,932 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-15 23:28:33,932 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 23:28:33,933 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 23:28:33,933 INFO  L85        PathProgramCache]: Analyzing trace with hash 1346540791, now seen corresponding path program 1 times
[2023-12-15 23:28:33,933 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 23:28:33,933 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105699568]
[2023-12-15 23:28:33,933 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 23:28:33,934 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 23:28:33,998 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 23:28:34,205 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-15 23:28:34,206 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 23:28:34,206 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105699568]
[2023-12-15 23:28:34,206 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105699568] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-15 23:28:34,206 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-15 23:28:34,206 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-15 23:28:34,206 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788350694]
[2023-12-15 23:28:34,206 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-15 23:28:34,207 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-15 23:28:34,207 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 23:28:34,208 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-15 23:28:34,208 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-15 23:28:34,208 INFO  L87              Difference]: Start difference. First operand 5252 states and 8578 transitions. Second operand  has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:34,422 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 23:28:34,423 INFO  L93              Difference]: Finished difference Result 15107 states and 24575 transitions.
[2023-12-15 23:28:34,423 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-15 23:28:34,424 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 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 475
[2023-12-15 23:28:34,424 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 23:28:34,463 INFO  L225             Difference]: With dead ends: 15107
[2023-12-15 23:28:34,463 INFO  L226             Difference]: Without dead ends: 10249
[2023-12-15 23:28:34,473 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-15 23:28:34,474 INFO  L413           NwaCegarLoop]: 4304 mSDtfsCounter, 1941 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1941 SdHoareTripleChecker+Valid, 6429 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-15 23:28:34,474 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1941 Valid, 6429 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-15 23:28:34,482 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10249 states.
[2023-12-15 23:28:34,673 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10249 to 10247.
[2023-12-15 23:28:34,700 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10247 states, 10246 states have (on average 1.6248292016396642) internal successors, (16648), 10246 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:34,733 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10247 states to 10247 states and 16648 transitions.
[2023-12-15 23:28:34,733 INFO  L78                 Accepts]: Start accepts. Automaton has 10247 states and 16648 transitions. Word has length 475
[2023-12-15 23:28:34,734 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-15 23:28:34,734 INFO  L495      AbstractCegarLoop]: Abstraction has 10247 states and 16648 transitions.
[2023-12-15 23:28:34,735 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:34,736 INFO  L276                IsEmpty]: Start isEmpty. Operand 10247 states and 16648 transitions.
[2023-12-15 23:28:34,755 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 476
[2023-12-15 23:28:34,755 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-15 23:28:34,755 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 23:28:34,755 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-12-15 23:28:34,756 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 23:28:34,756 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 23:28:34,756 INFO  L85        PathProgramCache]: Analyzing trace with hash 2020774268, now seen corresponding path program 1 times
[2023-12-15 23:28:34,756 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 23:28:34,757 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181130256]
[2023-12-15 23:28:34,757 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 23:28:34,757 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 23:28:34,795 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 23:28:34,912 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-15 23:28:34,912 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 23:28:34,912 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181130256]
[2023-12-15 23:28:34,912 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181130256] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-15 23:28:34,913 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-15 23:28:34,913 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-15 23:28:34,913 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317593032]
[2023-12-15 23:28:34,913 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-15 23:28:34,913 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-15 23:28:34,914 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 23:28:34,914 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-15 23:28:34,914 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-15 23:28:34,915 INFO  L87              Difference]: Start difference. First operand 10247 states and 16648 transitions. Second operand  has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:35,042 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 23:28:35,043 INFO  L93              Difference]: Finished difference Result 30495 states and 49509 transitions.
[2023-12-15 23:28:35,043 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-15 23:28:35,044 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 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 475
[2023-12-15 23:28:35,044 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 23:28:35,080 INFO  L225             Difference]: With dead ends: 30495
[2023-12-15 23:28:35,080 INFO  L226             Difference]: Without dead ends: 20387
[2023-12-15 23:28:35,098 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-15 23:28:35,101 INFO  L413           NwaCegarLoop]: 4342 mSDtfsCounter, 2167 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2167 SdHoareTripleChecker+Valid, 6513 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-15 23:28:35,101 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2167 Valid, 6513 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-15 23:28:35,119 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20387 states.
[2023-12-15 23:28:35,318 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20387 to 10345.
[2023-12-15 23:28:35,333 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10345 states, 10344 states have (on average 1.6240332559938129) internal successors, (16799), 10344 states have internal predecessors, (16799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:35,356 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10345 states to 10345 states and 16799 transitions.
[2023-12-15 23:28:35,357 INFO  L78                 Accepts]: Start accepts. Automaton has 10345 states and 16799 transitions. Word has length 475
[2023-12-15 23:28:35,357 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-15 23:28:35,357 INFO  L495      AbstractCegarLoop]: Abstraction has 10345 states and 16799 transitions.
[2023-12-15 23:28:35,357 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:35,357 INFO  L276                IsEmpty]: Start isEmpty. Operand 10345 states and 16799 transitions.
[2023-12-15 23:28:35,376 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 477
[2023-12-15 23:28:35,376 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-15 23:28:35,376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 23:28:35,376 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-12-15 23:28:35,377 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 23:28:35,378 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 23:28:35,378 INFO  L85        PathProgramCache]: Analyzing trace with hash -2003616377, now seen corresponding path program 1 times
[2023-12-15 23:28:35,378 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 23:28:35,378 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061909030]
[2023-12-15 23:28:35,378 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 23:28:35,378 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 23:28:35,417 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 23:28:35,537 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-15 23:28:35,537 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 23:28:35,537 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061909030]
[2023-12-15 23:28:35,537 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061909030] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-15 23:28:35,538 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-15 23:28:35,538 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-15 23:28:35,538 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176073541]
[2023-12-15 23:28:35,538 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-15 23:28:35,538 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-15 23:28:35,538 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 23:28:35,539 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-15 23:28:35,539 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-15 23:28:35,540 INFO  L87              Difference]: Start difference. First operand 10345 states and 16799 transitions. Second operand  has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:35,727 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 23:28:35,727 INFO  L93              Difference]: Finished difference Result 30630 states and 49690 transitions.
[2023-12-15 23:28:35,727 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-15 23:28:35,728 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 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 476
[2023-12-15 23:28:35,728 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 23:28:35,759 INFO  L225             Difference]: With dead ends: 30630
[2023-12-15 23:28:35,760 INFO  L226             Difference]: Without dead ends: 20504
[2023-12-15 23:28:35,774 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-15 23:28:35,775 INFO  L413           NwaCegarLoop]: 4346 mSDtfsCounter, 2162 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2162 SdHoareTripleChecker+Valid, 6517 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-15 23:28:35,776 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2162 Valid, 6517 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-15 23:28:35,795 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20504 states.
[2023-12-15 23:28:35,961 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20504 to 10462.
[2023-12-15 23:28:35,976 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10462 states, 10461 states have (on average 1.6198260204569352) internal successors, (16945), 10461 states have internal predecessors, (16945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:35,990 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10462 states to 10462 states and 16945 transitions.
[2023-12-15 23:28:35,992 INFO  L78                 Accepts]: Start accepts. Automaton has 10462 states and 16945 transitions. Word has length 476
[2023-12-15 23:28:35,992 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-15 23:28:35,992 INFO  L495      AbstractCegarLoop]: Abstraction has 10462 states and 16945 transitions.
[2023-12-15 23:28:35,993 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:35,993 INFO  L276                IsEmpty]: Start isEmpty. Operand 10462 states and 16945 transitions.
[2023-12-15 23:28:36,009 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 478
[2023-12-15 23:28:36,009 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-15 23:28:36,009 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 23:28:36,009 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-12-15 23:28:36,009 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 23:28:36,010 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 23:28:36,010 INFO  L85        PathProgramCache]: Analyzing trace with hash -1721197230, now seen corresponding path program 1 times
[2023-12-15 23:28:36,010 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 23:28:36,010 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229161573]
[2023-12-15 23:28:36,010 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 23:28:36,010 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 23:28:36,060 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 23:28:36,210 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-15 23:28:36,210 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 23:28:36,210 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229161573]
[2023-12-15 23:28:36,210 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229161573] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-15 23:28:36,210 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-15 23:28:36,211 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-15 23:28:36,211 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869921711]
[2023-12-15 23:28:36,211 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-15 23:28:36,211 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-15 23:28:36,211 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 23:28:36,212 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-15 23:28:36,212 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-15 23:28:36,212 INFO  L87              Difference]: Start difference. First operand 10462 states and 16945 transitions. Second operand  has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:36,365 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 23:28:36,365 INFO  L93              Difference]: Finished difference Result 29713 states and 47992 transitions.
[2023-12-15 23:28:36,365 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-15 23:28:36,366 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 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 477
[2023-12-15 23:28:36,366 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 23:28:36,399 INFO  L225             Difference]: With dead ends: 29713
[2023-12-15 23:28:36,399 INFO  L226             Difference]: Without dead ends: 20215
[2023-12-15 23:28:36,416 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-15 23:28:36,419 INFO  L413           NwaCegarLoop]: 4304 mSDtfsCounter, 1934 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1934 SdHoareTripleChecker+Valid, 6429 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-15 23:28:36,419 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1934 Valid, 6429 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-15 23:28:36,435 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20215 states.
[2023-12-15 23:28:36,733 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20215 to 20213.
[2023-12-15 23:28:36,762 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20213 states, 20212 states have (on average 1.6120126657431229) internal successors, (32582), 20212 states have internal predecessors, (32582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:36,791 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20213 states to 20213 states and 32582 transitions.
[2023-12-15 23:28:36,791 INFO  L78                 Accepts]: Start accepts. Automaton has 20213 states and 32582 transitions. Word has length 477
[2023-12-15 23:28:36,791 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-15 23:28:36,791 INFO  L495      AbstractCegarLoop]: Abstraction has 20213 states and 32582 transitions.
[2023-12-15 23:28:36,792 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:36,792 INFO  L276                IsEmpty]: Start isEmpty. Operand 20213 states and 32582 transitions.
[2023-12-15 23:28:36,821 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 478
[2023-12-15 23:28:36,821 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-15 23:28:36,821 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 23:28:36,821 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-12-15 23:28:36,822 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 23:28:36,822 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 23:28:36,822 INFO  L85        PathProgramCache]: Analyzing trace with hash 1786508591, now seen corresponding path program 1 times
[2023-12-15 23:28:36,822 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 23:28:36,822 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009122215]
[2023-12-15 23:28:36,823 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 23:28:36,823 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 23:28:37,107 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 23:28:37,668 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-15 23:28:37,668 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 23:28:37,669 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009122215]
[2023-12-15 23:28:37,669 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009122215] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-15 23:28:37,669 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-15 23:28:37,669 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-15 23:28:37,669 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020985139]
[2023-12-15 23:28:37,669 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-15 23:28:37,669 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-15 23:28:37,669 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 23:28:37,670 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-15 23:28:37,670 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-15 23:28:37,670 INFO  L87              Difference]: Start difference. First operand 20213 states and 32582 transitions. Second operand  has 5 states, 5 states have (on average 95.4) internal successors, (477), 4 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:37,948 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 23:28:37,948 INFO  L93              Difference]: Finished difference Result 59217 states and 95432 transitions.
[2023-12-15 23:28:37,949 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-15 23:28:37,949 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 95.4) internal successors, (477), 4 states have internal predecessors, (477), 0 states have call successors, (0), 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 477
[2023-12-15 23:28:37,949 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 23:28:38,018 INFO  L225             Difference]: With dead ends: 59217
[2023-12-15 23:28:38,018 INFO  L226             Difference]: Without dead ends: 39217
[2023-12-15 23:28:38,053 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-15 23:28:38,053 INFO  L413           NwaCegarLoop]: 3329 mSDtfsCounter, 4272 mSDsluCounter, 4222 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4272 SdHoareTripleChecker+Valid, 7551 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-15 23:28:38,053 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [4272 Valid, 7551 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-15 23:28:38,083 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 39217 states.
[2023-12-15 23:28:38,771 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 39217 to 39215.
[2023-12-15 23:28:38,857 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 39215 states, 39214 states have (on average 1.6040444739123783) internal successors, (62901), 39214 states have internal predecessors, (62901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:38,939 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 39215 states to 39215 states and 62901 transitions.
[2023-12-15 23:28:38,940 INFO  L78                 Accepts]: Start accepts. Automaton has 39215 states and 62901 transitions. Word has length 477
[2023-12-15 23:28:38,940 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-15 23:28:38,940 INFO  L495      AbstractCegarLoop]: Abstraction has 39215 states and 62901 transitions.
[2023-12-15 23:28:38,941 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 95.4) internal successors, (477), 4 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:38,941 INFO  L276                IsEmpty]: Start isEmpty. Operand 39215 states and 62901 transitions.
[2023-12-15 23:28:38,996 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 480
[2023-12-15 23:28:38,996 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-15 23:28:38,996 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 23:28:38,997 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-12-15 23:28:38,997 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 23:28:38,997 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 23:28:38,998 INFO  L85        PathProgramCache]: Analyzing trace with hash 1718529472, now seen corresponding path program 1 times
[2023-12-15 23:28:38,998 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 23:28:38,998 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510484779]
[2023-12-15 23:28:38,998 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 23:28:38,998 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 23:28:39,199 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 23:28:39,396 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-15 23:28:39,396 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 23:28:39,396 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510484779]
[2023-12-15 23:28:39,397 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510484779] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-15 23:28:39,397 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-15 23:28:39,397 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-15 23:28:39,397 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200970333]
[2023-12-15 23:28:39,397 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-15 23:28:39,398 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-15 23:28:39,398 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 23:28:39,398 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-15 23:28:39,398 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-15 23:28:39,399 INFO  L87              Difference]: Start difference. First operand 39215 states and 62901 transitions. Second operand  has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:39,832 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 23:28:39,832 INFO  L93              Difference]: Finished difference Result 114985 states and 184268 transitions.
[2023-12-15 23:28:39,833 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-15 23:28:39,833 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 0 states have call successors, (0), 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 479
[2023-12-15 23:28:39,833 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 23:28:39,956 INFO  L225             Difference]: With dead ends: 114985
[2023-12-15 23:28:39,956 INFO  L226             Difference]: Without dead ends: 77307
[2023-12-15 23:28:39,998 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-15 23:28:40,000 INFO  L413           NwaCegarLoop]: 4283 mSDtfsCounter, 1921 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1921 SdHoareTripleChecker+Valid, 6408 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-15 23:28:40,000 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1921 Valid, 6408 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-15 23:28:40,055 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 77307 states.
[2023-12-15 23:28:41,115 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 77307 to 77305.
[2023-12-15 23:28:41,213 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 77305 states, 77304 states have (on average 1.5978862672048018) internal successors, (123523), 77304 states have internal predecessors, (123523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:41,502 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 77305 states to 77305 states and 123523 transitions.
[2023-12-15 23:28:41,503 INFO  L78                 Accepts]: Start accepts. Automaton has 77305 states and 123523 transitions. Word has length 479
[2023-12-15 23:28:41,503 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-15 23:28:41,503 INFO  L495      AbstractCegarLoop]: Abstraction has 77305 states and 123523 transitions.
[2023-12-15 23:28:41,503 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:41,503 INFO  L276                IsEmpty]: Start isEmpty. Operand 77305 states and 123523 transitions.
[2023-12-15 23:28:41,594 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 482
[2023-12-15 23:28:41,595 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-15 23:28:41,595 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 23:28:41,595 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-12-15 23:28:41,595 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 23:28:41,596 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 23:28:41,596 INFO  L85        PathProgramCache]: Analyzing trace with hash 633096123, now seen corresponding path program 1 times
[2023-12-15 23:28:41,596 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 23:28:41,596 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792565460]
[2023-12-15 23:28:41,596 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 23:28:41,596 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 23:28:41,658 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 23:28:41,935 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-15 23:28:41,935 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 23:28:41,935 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792565460]
[2023-12-15 23:28:41,936 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792565460] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-15 23:28:41,936 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-15 23:28:41,936 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-15 23:28:41,936 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349926664]
[2023-12-15 23:28:41,936 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-15 23:28:41,936 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-15 23:28:41,937 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 23:28:41,937 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-15 23:28:41,937 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-15 23:28:41,937 INFO  L87              Difference]: Start difference. First operand 77305 states and 123523 transitions. Second operand  has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:42,606 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 23:28:42,609 INFO  L93              Difference]: Finished difference Result 225380 states and 359324 transitions.
[2023-12-15 23:28:42,610 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-15 23:28:42,610 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 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 481
[2023-12-15 23:28:42,610 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 23:28:43,000 INFO  L225             Difference]: With dead ends: 225380
[2023-12-15 23:28:43,000 INFO  L226             Difference]: Without dead ends: 151778
[2023-12-15 23:28:43,096 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-15 23:28:43,096 INFO  L413           NwaCegarLoop]: 4283 mSDtfsCounter, 1914 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1914 SdHoareTripleChecker+Valid, 6408 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-15 23:28:43,097 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1914 Valid, 6408 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-15 23:28:43,194 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 151778 states.
[2023-12-15 23:28:44,941 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 151778 to 151776.
[2023-12-15 23:28:45,092 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 151776 states, 151775 states have (on average 1.5903739087464996) internal successors, (241379), 151775 states have internal predecessors, (241379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:45,626 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 151776 states to 151776 states and 241379 transitions.
[2023-12-15 23:28:45,627 INFO  L78                 Accepts]: Start accepts. Automaton has 151776 states and 241379 transitions. Word has length 481
[2023-12-15 23:28:45,628 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-15 23:28:45,628 INFO  L495      AbstractCegarLoop]: Abstraction has 151776 states and 241379 transitions.
[2023-12-15 23:28:45,628 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:45,629 INFO  L276                IsEmpty]: Start isEmpty. Operand 151776 states and 241379 transitions.
[2023-12-15 23:28:45,846 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 482
[2023-12-15 23:28:45,847 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-15 23:28:45,853 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 23:28:45,853 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-12-15 23:28:45,853 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 23:28:45,854 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 23:28:45,854 INFO  L85        PathProgramCache]: Analyzing trace with hash 1687024344, now seen corresponding path program 1 times
[2023-12-15 23:28:45,855 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 23:28:45,855 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577583433]
[2023-12-15 23:28:45,855 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 23:28:45,855 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 23:28:46,420 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 23:28:46,950 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-15 23:28:46,951 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 23:28:46,951 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577583433]
[2023-12-15 23:28:46,951 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577583433] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-15 23:28:46,951 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-15 23:28:46,951 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-15 23:28:46,951 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348743022]
[2023-12-15 23:28:46,951 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-15 23:28:46,952 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-15 23:28:46,952 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 23:28:46,952 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-15 23:28:46,952 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-15 23:28:46,952 INFO  L87              Difference]: Start difference. First operand 151776 states and 241379 transitions. Second operand  has 5 states, 5 states have (on average 96.2) internal successors, (481), 4 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:48,378 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 23:28:48,379 INFO  L93              Difference]: Finished difference Result 450806 states and 716899 transitions.
[2023-12-15 23:28:48,379 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-15 23:28:48,379 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 96.2) internal successors, (481), 4 states have internal predecessors, (481), 0 states have call successors, (0), 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 481
[2023-12-15 23:28:48,380 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 23:28:49,229 INFO  L225             Difference]: With dead ends: 450806
[2023-12-15 23:28:49,230 INFO  L226             Difference]: Without dead ends: 299413
[2023-12-15 23:28:49,386 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-15 23:28:49,387 INFO  L413           NwaCegarLoop]: 3328 mSDtfsCounter, 7193 mSDsluCounter, 2111 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7193 SdHoareTripleChecker+Valid, 5439 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-15 23:28:49,387 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [7193 Valid, 5439 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-15 23:28:49,545 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 299413 states.
[2023-12-15 23:28:53,284 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 299413 to 299411.
[2023-12-15 23:28:53,542 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 299411 states, 299410 states have (on average 1.583143515580642) internal successors, (474009), 299410 states have internal predecessors, (474009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:54,331 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 299411 states to 299411 states and 474009 transitions.
[2023-12-15 23:28:54,331 INFO  L78                 Accepts]: Start accepts. Automaton has 299411 states and 474009 transitions. Word has length 481
[2023-12-15 23:28:54,332 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-15 23:28:54,332 INFO  L495      AbstractCegarLoop]: Abstraction has 299411 states and 474009 transitions.
[2023-12-15 23:28:54,332 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 96.2) internal successors, (481), 4 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:54,332 INFO  L276                IsEmpty]: Start isEmpty. Operand 299411 states and 474009 transitions.
[2023-12-15 23:28:54,636 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 484
[2023-12-15 23:28:54,636 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-15 23:28:54,637 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 23:28:54,637 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-12-15 23:28:54,637 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 23:28:54,637 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 23:28:54,637 INFO  L85        PathProgramCache]: Analyzing trace with hash 1231775963, now seen corresponding path program 1 times
[2023-12-15 23:28:54,638 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 23:28:54,638 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359378690]
[2023-12-15 23:28:54,638 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 23:28:54,638 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 23:28:55,123 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 23:28:55,582 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-15 23:28:55,582 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 23:28:55,582 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359378690]
[2023-12-15 23:28:55,583 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359378690] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-15 23:28:55,583 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-15 23:28:55,583 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-15 23:28:55,583 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139368221]
[2023-12-15 23:28:55,583 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-15 23:28:55,583 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-15 23:28:55,584 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 23:28:55,584 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-15 23:28:55,584 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-15 23:28:55,584 INFO  L87              Difference]: Start difference. First operand 299411 states and 474009 transitions. Second operand  has 5 states, 5 states have (on average 96.6) internal successors, (483), 4 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:28:58,763 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 23:28:58,763 INFO  L93              Difference]: Finished difference Result 889517 states and 1407758 transitions.
[2023-12-15 23:28:58,764 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-15 23:28:58,764 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 96.6) internal successors, (483), 4 states have internal predecessors, (483), 0 states have call successors, (0), 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 483
[2023-12-15 23:28:58,764 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 23:28:59,696 INFO  L225             Difference]: With dead ends: 889517
[2023-12-15 23:28:59,696 INFO  L226             Difference]: Without dead ends: 590658
[2023-12-15 23:29:00,257 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-15 23:29:00,258 INFO  L413           NwaCegarLoop]: 3328 mSDtfsCounter, 4254 mSDsluCounter, 4222 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4254 SdHoareTripleChecker+Valid, 7550 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-15 23:29:00,258 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [4254 Valid, 7550 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-15 23:29:00,594 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 590658 states.
[2023-12-15 23:29:08,190 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 590658 to 590656.
[2023-12-15 23:29:08,883 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 590656 states, 590655 states have (on average 1.5753324698851274) internal successors, (930478), 590655 states have internal predecessors, (930478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:29:11,290 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 590656 states to 590656 states and 930478 transitions.
[2023-12-15 23:29:11,291 INFO  L78                 Accepts]: Start accepts. Automaton has 590656 states and 930478 transitions. Word has length 483
[2023-12-15 23:29:11,291 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-15 23:29:11,291 INFO  L495      AbstractCegarLoop]: Abstraction has 590656 states and 930478 transitions.
[2023-12-15 23:29:11,291 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 96.6) internal successors, (483), 4 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-15 23:29:11,291 INFO  L276                IsEmpty]: Start isEmpty. Operand 590656 states and 930478 transitions.
[2023-12-15 23:29:12,167 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 484
[2023-12-15 23:29:12,167 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-15 23:29:12,168 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 23:29:12,168 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-12-15 23:29:12,168 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 23:29:12,168 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 23:29:12,169 INFO  L85        PathProgramCache]: Analyzing trace with hash 2089691705, now seen corresponding path program 1 times
[2023-12-15 23:29:12,169 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 23:29:12,169 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706781619]
[2023-12-15 23:29:12,169 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 23:29:12,169 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 23:29:12,656 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 23:29:13,763 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-15 23:29:13,763 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 23:29:13,763 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706781619]
[2023-12-15 23:29:13,764 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706781619] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-15 23:29:13,764 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-15 23:29:13,764 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-15 23:29:13,764 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269583542]
[2023-12-15 23:29:13,764 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-15 23:29:13,764 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-15 23:29:13,764 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 23:29:13,765 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-15 23:29:13,766 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-15 23:29:13,766 INFO  L87              Difference]: Start difference. First operand 590656 states and 930478 transitions. Second operand  has 4 states, 4 states have (on average 120.75) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
Received shutdown request...
[2023-12-15 23:29:15,835 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-15 23:29:15,835 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-15 23:29:15,837 INFO  L413           NwaCegarLoop]: 805 mSDtfsCounter, 2081 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2081 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-15 23:29:15,837 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2081 Valid, 1566 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-15 23:29:15,839 INFO  L805   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-15 23:29:15,840 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-12-15 23:29:15,841 WARN  L619      AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (590656states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (451747 states constructed, input type IntersectNwa).
[2023-12-15 23:29:15,848 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 23:29:15,860 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-15 23:29:15,861 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-12-15 23:29:15,873 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:29:15 BoogieIcfgContainer
[2023-12-15 23:29:15,873 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-15 23:29:15,874 INFO  L158              Benchmark]: Toolchain (without parser) took 49174.54ms. Allocated memory was 203.4MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 145.4MB in the beginning and 4.8GB in the end (delta: -4.6GB). Peak memory consumption was 3.3GB. Max. memory is 8.0GB.
[2023-12-15 23:29:15,875 INFO  L158              Benchmark]: CDTParser took 0.11ms. Allocated memory is still 168.8MB. Free memory is still 118.2MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-15 23:29:15,875 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 1266.71ms. Allocated memory is still 203.4MB. Free memory was 145.4MB in the beginning and 122.0MB in the end (delta: 23.3MB). Peak memory consumption was 51.0MB. Max. memory is 8.0GB.
[2023-12-15 23:29:15,875 INFO  L158              Benchmark]: Boogie Procedure Inliner took 165.40ms. Allocated memory is still 203.4MB. Free memory was 122.0MB in the beginning and 97.4MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB.
[2023-12-15 23:29:15,876 INFO  L158              Benchmark]: Boogie Preprocessor took 264.51ms. Allocated memory is still 203.4MB. Free memory was 97.4MB in the beginning and 146.1MB in the end (delta: -48.7MB). Peak memory consumption was 28.6MB. Max. memory is 8.0GB.
[2023-12-15 23:29:15,876 INFO  L158              Benchmark]: RCFGBuilder took 2340.50ms. Allocated memory was 203.4MB in the beginning and 325.1MB in the end (delta: 121.6MB). Free memory was 146.1MB in the beginning and 208.5MB in the end (delta: -62.4MB). Peak memory consumption was 148.6MB. Max. memory is 8.0GB.
[2023-12-15 23:29:15,881 INFO  L158              Benchmark]: TraceAbstraction took 45132.89ms. Allocated memory was 325.1MB in the beginning and 7.9GB in the end (delta: 7.6GB). Free memory was 207.9MB in the beginning and 4.8GB in the end (delta: -4.6GB). Peak memory consumption was 3.3GB. Max. memory is 8.0GB.
[2023-12-15 23:29:15,886 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.11ms. Allocated memory is still 168.8MB. Free memory is still 118.2MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 1266.71ms. Allocated memory is still 203.4MB. Free memory was 145.4MB in the beginning and 122.0MB in the end (delta: 23.3MB). Peak memory consumption was 51.0MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 165.40ms. Allocated memory is still 203.4MB. Free memory was 122.0MB in the beginning and 97.4MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 264.51ms. Allocated memory is still 203.4MB. Free memory was 97.4MB in the beginning and 146.1MB in the end (delta: -48.7MB). Peak memory consumption was 28.6MB. Max. memory is 8.0GB.
 * RCFGBuilder took 2340.50ms. Allocated memory was 203.4MB in the beginning and 325.1MB in the end (delta: 121.6MB). Free memory was 146.1MB in the beginning and 208.5MB in the end (delta: -62.4MB). Peak memory consumption was 148.6MB. Max. memory is 8.0GB.
 * TraceAbstraction took 45132.89ms. Allocated memory was 325.1MB in the beginning and 7.9GB in the end (delta: 7.6GB). Free memory was 207.9MB in the beginning and 4.8GB in the end (delta: -4.6GB). Peak memory consumption was 3.3GB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - TimeoutResultAtElement [Line: 2920]: Timeout (TraceAbstraction)
    Unable to prove that a call to reach_error is unreachable (line 2920). Cancelled while NwaCegarLoop was constructing difference of abstraction (590656states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (451747 states constructed, input type IntersectNwa).
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 1333 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 45.1s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.7s, AutomataDifference: 12.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39537 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39537 mSDsluCounter, 79674 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30776 mSDsCounter, 364 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 581 IncrementalHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 364 mSolverCounterUnsat, 48898 mSDtfsCounter, 581 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=590656occurred in iteration=12, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 22.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 25220 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 6205 NumberOfCodeBlocks, 6205 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 6192 ConstructedInterpolants, 0 QuantifiedInterpolants, 20318 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown
[2023-12-15 23:29:15,928 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0

!ENTRY org.eclipse.osgi 4 0 2023-12-15 23:29:16.121
!MESSAGE Application error
!STACK 1
org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d46c0e15d/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory)
	at java.base/java.io.FileOutputStream.open0(Native Method)
	at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298)
	at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:237)
	at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:187)
	at org.eclipse.core.internal.localstore.SafeFileOutputStream.<init>(SafeFileOutputStream.java:55)
	at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381)
	at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168)
	at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333)
	at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:190)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1438)
An error has occurred. See the log file
/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d46c0e15d/.metadata/.log.