/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_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem05_label28.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 04:31:43,524 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 04:31:43,588 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-22 04:31:43,590 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 04:31:43,591 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 04:31:43,615 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 04:31:43,616 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 04:31:43,616 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 04:31:43,617 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 04:31:43,619 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 04:31:43,620 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 04:31:43,620 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 04:31:43,620 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 04:31:43,621 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 04:31:43,622 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 04:31:43,622 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 04:31:43,622 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 04:31:43,622 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 04:31:43,622 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 04:31:43,623 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 04:31:43,623 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 04:31:43,624 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 04:31:43,624 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 04:31:43,624 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 04:31:43,624 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 04:31:43,624 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 04:31:43,624 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 04:31:43,625 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 04:31:43,625 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 04:31:43,625 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 04:31:43,626 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 04:31:43,626 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 04:31:43,626 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 04:31:43,626 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 04:31:43,626 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 04:31:43,626 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 04:31:43,626 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 04:31:43,626 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 04:31:43,626 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 04:31:43,627 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 04:31:43,627 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 04:31:43,627 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 04:31:43,627 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 04:31:43,627 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 04:31:43,627 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 04:31:43,627 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 04:31:43,628 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 04:31:43,832 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 04:31:43,861 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 04:31:43,863 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 04:31:43,864 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 04:31:43,864 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 04:31:43,865 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label28.c
[2023-12-22 04:31:45,019 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 04:31:45,471 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 04:31:45,472 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label28.c
[2023-12-22 04:31:45,511 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c6a1bd19/397be4f1b0904d9783275b29dbafe5a0/FLAG6ad77ed12
[2023-12-22 04:31:45,524 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c6a1bd19/397be4f1b0904d9783275b29dbafe5a0
[2023-12-22 04:31:45,526 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 04:31:45,527 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 04:31:45,529 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 04:31:45,529 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 04:31:45,532 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 04:31:45,532 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:31:45" (1/1) ...
[2023-12-22 04:31:45,533 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d60ebd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:31:45, skipping insertion in model container
[2023-12-22 04:31:45,533 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:31:45" (1/1) ...
[2023-12-22 04:31:45,709 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 04:31:46,765 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label28.c[380793,380806]
[2023-12-22 04:31:46,780 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 04:31:46,789 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 04:31:47,427 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label28.c[380793,380806]
[2023-12-22 04:31:47,434 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 04:31:47,470 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 04:31:47,471 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:31:47 WrapperNode
[2023-12-22 04:31:47,471 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 04:31:47,472 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 04:31:47,472 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 04:31:47,472 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 04:31:47,476 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:31:47" (1/1) ...
[2023-12-22 04:31:47,539 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:31:47" (1/1) ...
[2023-12-22 04:31:47,825 INFO  L138                Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12345
[2023-12-22 04:31:47,825 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 04:31:47,826 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 04:31:47,826 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 04:31:47,826 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 04:31:47,833 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:31:47" (1/1) ...
[2023-12-22 04:31:47,833 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:31:47" (1/1) ...
[2023-12-22 04:31:47,895 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:31:47" (1/1) ...
[2023-12-22 04:31:48,053 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].
[2023-12-22 04:31:48,054 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:31:47" (1/1) ...
[2023-12-22 04:31:48,054 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:31:47" (1/1) ...
[2023-12-22 04:31:48,183 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:31:47" (1/1) ...
[2023-12-22 04:31:48,260 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:31:47" (1/1) ...
[2023-12-22 04:31:48,280 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:31:47" (1/1) ...
[2023-12-22 04:31:48,296 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:31:47" (1/1) ...
[2023-12-22 04:31:48,343 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 04:31:48,345 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 04:31:48,345 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 04:31:48,345 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 04:31:48,346 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:31:47" (1/1) ...
[2023-12-22 04:31:48,349 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 04:31:48,356 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 04:31:48,372 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)
[2023-12-22 04:31:48,386 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
[2023-12-22 04:31:48,395 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 04:31:48,395 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 04:31:48,395 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 04:31:48,395 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 04:31:48,481 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 04:31:48,483 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 04:31:55,664 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 04:31:55,761 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 04:31:55,762 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 04:31:55,762 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:31:55 BoogieIcfgContainer
[2023-12-22 04:31:55,762 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 04:31:55,764 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 04:31:55,764 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 04:31:55,766 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 04:31:55,766 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:31:45" (1/3) ...
[2023-12-22 04:31:55,767 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@926739a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:31:55, skipping insertion in model container
[2023-12-22 04:31:55,767 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:31:47" (2/3) ...
[2023-12-22 04:31:55,767 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@926739a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:31:55, skipping insertion in model container
[2023-12-22 04:31:55,767 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:31:55" (3/3) ...
[2023-12-22 04:31:55,768 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem05_label28.c
[2023-12-22 04:31:55,780 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 04:31:55,780 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 04:31:55,953 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 04:31:55,958 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;@53c8f9ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 04:31:55,959 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 04:31:55,972 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 2123 states, 2121 states have (on average 1.8962753418198963) internal successors, (4022), 2122 states have internal predecessors, (4022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:31:56,066 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1681
[2023-12-22 04:31:56,066 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:31:56,068 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:31:56,068 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:31:56,073 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:31:56,074 INFO  L85        PathProgramCache]: Analyzing trace with hash -1249409714, now seen corresponding path program 1 times
[2023-12-22 04:31:56,100 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:31:56,100 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97681485]
[2023-12-22 04:31:56,101 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:31:56,101 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:31:56,101 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:31:56,112 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:31:56,146 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-22 04:31:56,782 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:31:56,790 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1729 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 04:31:56,813 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:31:56,886 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 04:31:56,886 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:31:56,886 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:31:56,887 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97681485]
[2023-12-22 04:31:56,887 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [97681485] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:31:56,887 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:31:56,887 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 04:31:56,889 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352575889]
[2023-12-22 04:31:56,889 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:31:56,894 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 04:31:56,894 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:31:56,914 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 04:31:56,914 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 04:31:56,920 INFO  L87              Difference]: Start difference. First operand  has 2123 states, 2121 states have (on average 1.8962753418198963) internal successors, (4022), 2122 states have internal predecessors, (4022), 0 states have call successors, (0), 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 2 states, 2 states have (on average 840.0) internal successors, (1680), 2 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:31:56,990 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:31:56,991 INFO  L93              Difference]: Finished difference Result 4245 states and 8043 transitions.
[2023-12-22 04:31:56,992 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 04:31:56,994 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 840.0) internal successors, (1680), 2 states have internal predecessors, (1680), 0 states have call successors, (0), 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 1680
[2023-12-22 04:31:56,997 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:31:57,012 INFO  L225             Difference]: With dead ends: 4245
[2023-12-22 04:31:57,012 INFO  L226             Difference]: Without dead ends: 2121
[2023-12-22 04:31:57,018 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1679 GetRequests, 1679 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 04:31:57,020 INFO  L413           NwaCegarLoop]: 3957 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3957 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-22 04:31:57,020 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3957 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-22 04:31:57,034 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2121 states.
[2023-12-22 04:31:57,202 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 2121.
[2023-12-22 04:31:57,207 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2121 states, 2120 states have (on average 1.866509433962264) internal successors, (3957), 2120 states have internal predecessors, (3957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:31:57,213 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 3957 transitions.
[2023-12-22 04:31:57,214 INFO  L78                 Accepts]: Start accepts. Automaton has 2121 states and 3957 transitions. Word has length 1680
[2023-12-22 04:31:57,218 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:31:57,218 INFO  L495      AbstractCegarLoop]: Abstraction has 2121 states and 3957 transitions.
[2023-12-22 04:31:57,219 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 840.0) internal successors, (1680), 2 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:31:57,219 INFO  L276                IsEmpty]: Start isEmpty. Operand 2121 states and 3957 transitions.
[2023-12-22 04:31:57,274 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1681
[2023-12-22 04:31:57,275 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:31:57,276 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:31:57,283 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-22 04:31:57,479 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:31:57,482 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:31:57,482 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:31:57,483 INFO  L85        PathProgramCache]: Analyzing trace with hash 108541508, now seen corresponding path program 1 times
[2023-12-22 04:31:57,495 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:31:57,496 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121297710]
[2023-12-22 04:31:57,496 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:31:57,497 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:31:57,497 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:31:57,499 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:31:57,513 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-22 04:31:58,088 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:31:58,096 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1729 conjuncts, 31 conjunts are in the unsatisfiable core
[2023-12-22 04:31:58,126 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:32:41,339 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 04:32:41,340 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:32:41,340 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:32:41,342 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121297710]
[2023-12-22 04:32:41,343 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121297710] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:32:41,344 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:32:41,344 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2023-12-22 04:32:41,344 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846224206]
[2023-12-22 04:32:41,344 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:32:41,348 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:32:41,348 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:32:41,350 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:32:41,350 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:32:41,351 INFO  L87              Difference]: Start difference. First operand 2121 states and 3957 transitions. Second operand  has 16 states, 16 states have (on average 105.0) internal successors, (1680), 15 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:32:59,935 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:32:59,936 INFO  L93              Difference]: Finished difference Result 5867 states and 11163 transitions.
[2023-12-22 04:32:59,936 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2023-12-22 04:32:59,937 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 105.0) internal successors, (1680), 15 states have internal predecessors, (1680), 0 states have call successors, (0), 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 1680
[2023-12-22 04:32:59,942 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:32:59,984 INFO  L225             Difference]: With dead ends: 5867
[2023-12-22 04:32:59,985 INFO  L226             Difference]: Without dead ends: 3747
[2023-12-22 04:32:59,991 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1690 GetRequests, 1665 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=224, Invalid=478, Unknown=0, NotChecked=0, Total=702
[2023-12-22 04:32:59,993 INFO  L413           NwaCegarLoop]: 2327 mSDtfsCounter, 7660 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 28106 mSolverCounterSat, 1618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7660 SdHoareTripleChecker+Valid, 3663 SdHoareTripleChecker+Invalid, 29724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1618 IncrementalHoareTripleChecker+Valid, 28106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time
[2023-12-22 04:32:59,993 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [7660 Valid, 3663 Invalid, 29724 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1618 Valid, 28106 Invalid, 0 Unknown, 0 Unchecked, 17.5s Time]
[2023-12-22 04:32:59,999 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3747 states.
[2023-12-22 04:33:00,107 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3747 to 3747.
[2023-12-22 04:33:00,112 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3747 states, 3746 states have (on average 1.4917245061398825) internal successors, (5588), 3746 states have internal predecessors, (5588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:00,121 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3747 states to 3747 states and 5588 transitions.
[2023-12-22 04:33:00,121 INFO  L78                 Accepts]: Start accepts. Automaton has 3747 states and 5588 transitions. Word has length 1680
[2023-12-22 04:33:00,123 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:33:00,123 INFO  L495      AbstractCegarLoop]: Abstraction has 3747 states and 5588 transitions.
[2023-12-22 04:33:00,124 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 105.0) internal successors, (1680), 15 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:00,124 INFO  L276                IsEmpty]: Start isEmpty. Operand 3747 states and 5588 transitions.
[2023-12-22 04:33:00,146 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1790
[2023-12-22 04:33:00,146 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:33:00,147 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:33:00,151 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2023-12-22 04:33:00,351 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:33:00,354 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:33:00,354 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:33:00,355 INFO  L85        PathProgramCache]: Analyzing trace with hash 948485724, now seen corresponding path program 1 times
[2023-12-22 04:33:00,363 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:33:00,363 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428172903]
[2023-12-22 04:33:00,364 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:33:00,364 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:33:00,364 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:33:00,365 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:33:00,371 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-22 04:33:00,852 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:33:00,861 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1851 conjuncts, 29 conjunts are in the unsatisfiable core
[2023-12-22 04:33:00,917 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:34:07,659 INFO  L134       CoverageAnalysis]: Checked inductivity of 108 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 04:34:07,660 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:34:07,660 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:34:07,662 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428172903]
[2023-12-22 04:34:07,662 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1428172903] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:34:07,662 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:34:07,662 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2023-12-22 04:34:07,663 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366720236]
[2023-12-22 04:34:07,663 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:34:07,664 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:34:07,664 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:34:07,666 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:34:07,666 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:34:07,667 INFO  L87              Difference]: Start difference. First operand 3747 states and 5588 transitions. Second operand  has 16 states, 16 states have (on average 111.8125) internal successors, (1789), 16 states have internal predecessors, (1789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:34:34,850 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:34:34,851 INFO  L93              Difference]: Finished difference Result 10832 states and 19277 transitions.
[2023-12-22 04:34:34,851 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. 
[2023-12-22 04:34:34,852 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 111.8125) internal successors, (1789), 16 states have internal predecessors, (1789), 0 states have call successors, (0), 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 1789
[2023-12-22 04:34:34,854 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:34:34,877 INFO  L225             Difference]: With dead ends: 10832
[2023-12-22 04:34:34,878 INFO  L226             Difference]: Without dead ends: 8712
[2023-12-22 04:34:34,881 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1808 GetRequests, 1776 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=341, Invalid=781, Unknown=0, NotChecked=0, Total=1122
[2023-12-22 04:34:34,884 INFO  L413           NwaCegarLoop]: 3884 mSDtfsCounter, 8573 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 28958 mSolverCounterSat, 3038 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8573 SdHoareTripleChecker+Valid, 4579 SdHoareTripleChecker+Invalid, 31996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3038 IncrementalHoareTripleChecker+Valid, 28958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time
[2023-12-22 04:34:34,885 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8573 Valid, 4579 Invalid, 31996 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3038 Valid, 28958 Invalid, 0 Unknown, 0 Unchecked, 24.9s Time]
[2023-12-22 04:34:34,893 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8712 states.
[2023-12-22 04:34:34,980 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8712 to 8708.
[2023-12-22 04:34:35,000 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8708 states, 8707 states have (on average 1.2628919260365223) internal successors, (10996), 8707 states have internal predecessors, (10996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:34:35,011 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8708 states to 8708 states and 10996 transitions.
[2023-12-22 04:34:35,011 INFO  L78                 Accepts]: Start accepts. Automaton has 8708 states and 10996 transitions. Word has length 1789
[2023-12-22 04:34:35,013 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:34:35,013 INFO  L495      AbstractCegarLoop]: Abstraction has 8708 states and 10996 transitions.
[2023-12-22 04:34:35,013 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 111.8125) internal successors, (1789), 16 states have internal predecessors, (1789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:34:35,014 INFO  L276                IsEmpty]: Start isEmpty. Operand 8708 states and 10996 transitions.
[2023-12-22 04:34:35,039 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1826
[2023-12-22 04:34:35,040 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:34:35,040 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:34:35,061 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0
[2023-12-22 04:34:35,245 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:34:35,245 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:34:35,246 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:34:35,246 INFO  L85        PathProgramCache]: Analyzing trace with hash 389024133, now seen corresponding path program 1 times
[2023-12-22 04:34:35,255 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:34:35,255 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [339403142]
[2023-12-22 04:34:35,255 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:34:35,256 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:34:35,256 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:34:35,257 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:34:35,268 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-22 04:34:35,761 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:34:35,768 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1902 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-22 04:34:35,791 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:35:06,599 INFO  L134       CoverageAnalysis]: Checked inductivity of 179 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 04:35:06,599 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:35:06,599 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:35:06,599 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [339403142]
[2023-12-22 04:35:06,599 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [339403142] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:35:06,599 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:35:06,600 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2023-12-22 04:35:06,600 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301039411]
[2023-12-22 04:35:06,600 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:35:06,601 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:35:06,602 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:35:06,604 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:35:06,604 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:35:06,604 INFO  L87              Difference]: Start difference. First operand 8708 states and 10996 transitions. Second operand  has 16 states, 16 states have (on average 114.0625) internal successors, (1825), 15 states have internal predecessors, (1825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:35:27,953 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:35:27,953 INFO  L93              Difference]: Finished difference Result 18684 states and 26083 transitions.
[2023-12-22 04:35:27,954 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2023-12-22 04:35:27,954 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 114.0625) internal successors, (1825), 15 states have internal predecessors, (1825), 0 states have call successors, (0), 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 1825
[2023-12-22 04:35:27,956 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:35:27,979 INFO  L225             Difference]: With dead ends: 18684
[2023-12-22 04:35:27,979 INFO  L226             Difference]: Without dead ends: 9905
[2023-12-22 04:35:27,991 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1834 GetRequests, 1810 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=233, Invalid=417, Unknown=0, NotChecked=0, Total=650
[2023-12-22 04:35:27,992 INFO  L413           NwaCegarLoop]: 1065 mSDtfsCounter, 8248 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 28165 mSolverCounterSat, 3812 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8248 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 31977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3812 IncrementalHoareTripleChecker+Valid, 28165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time
[2023-12-22 04:35:27,993 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8248 Valid, 1524 Invalid, 31977 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3812 Valid, 28165 Invalid, 0 Unknown, 0 Unchecked, 20.4s Time]
[2023-12-22 04:35:28,003 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9905 states.
[2023-12-22 04:35:28,106 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9905 to 9905.
[2023-12-22 04:35:28,114 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9905 states, 9904 states have (on average 1.2102180936995153) internal successors, (11986), 9904 states have internal predecessors, (11986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:35:28,129 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9905 states to 9905 states and 11986 transitions.
[2023-12-22 04:35:28,130 INFO  L78                 Accepts]: Start accepts. Automaton has 9905 states and 11986 transitions. Word has length 1825
[2023-12-22 04:35:28,131 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:35:28,131 INFO  L495      AbstractCegarLoop]: Abstraction has 9905 states and 11986 transitions.
[2023-12-22 04:35:28,132 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 114.0625) internal successors, (1825), 15 states have internal predecessors, (1825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:35:28,132 INFO  L276                IsEmpty]: Start isEmpty. Operand 9905 states and 11986 transitions.
[2023-12-22 04:35:28,167 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2060
[2023-12-22 04:35:28,167 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:35:28,168 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:35:28,172 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-12-22 04:35:28,372 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:35:28,372 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:35:28,373 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:35:28,374 INFO  L85        PathProgramCache]: Analyzing trace with hash 1959242382, now seen corresponding path program 1 times
[2023-12-22 04:35:28,383 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:35:28,384 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246017670]
[2023-12-22 04:35:28,384 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:35:28,384 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:35:28,384 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:35:28,385 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:35:28,412 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-22 04:35:28,940 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:35:28,949 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2154 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-22 04:35:28,968 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:36:22,135 INFO  L134       CoverageAnalysis]: Checked inductivity of 556 backedges. 520 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2023-12-22 04:36:22,136 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:36:22,136 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:36:22,136 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246017670]
[2023-12-22 04:36:22,136 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [246017670] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:36:22,136 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:36:22,136 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2023-12-22 04:36:22,136 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888992815]
[2023-12-22 04:36:22,137 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:36:22,139 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2023-12-22 04:36:22,139 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:36:22,140 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2023-12-22 04:36:22,141 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272
[2023-12-22 04:36:22,141 INFO  L87              Difference]: Start difference. First operand 9905 states and 11986 transitions. Second operand  has 17 states, 17 states have (on average 119.05882352941177) internal successors, (2024), 16 states have internal predecessors, (2024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:37:07,417 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:37:07,417 INFO  L93              Difference]: Finished difference Result 29564 states and 39985 transitions.
[2023-12-22 04:37:07,418 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. 
[2023-12-22 04:37:07,418 INFO  L78                 Accepts]: Start accepts. Automaton has  has 17 states, 17 states have (on average 119.05882352941177) internal successors, (2024), 16 states have internal predecessors, (2024), 0 states have call successors, (0), 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 2059
[2023-12-22 04:37:07,420 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:37:07,468 INFO  L225             Difference]: With dead ends: 29564
[2023-12-22 04:37:07,468 INFO  L226             Difference]: Without dead ends: 21285
[2023-12-22 04:37:07,477 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2077 GetRequests, 2043 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=395, Invalid=865, Unknown=0, NotChecked=0, Total=1260
[2023-12-22 04:37:07,477 INFO  L413           NwaCegarLoop]: 1059 mSDtfsCounter, 22910 mSDsluCounter, 2060 mSDsCounter, 0 mSdLazyCounter, 55419 mSolverCounterSat, 4849 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22910 SdHoareTripleChecker+Valid, 3119 SdHoareTripleChecker+Invalid, 60268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4849 IncrementalHoareTripleChecker+Valid, 55419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.8s IncrementalHoareTripleChecker+Time
[2023-12-22 04:37:07,477 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [22910 Valid, 3119 Invalid, 60268 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4849 Valid, 55419 Invalid, 0 Unknown, 0 Unchecked, 42.8s Time]
[2023-12-22 04:37:07,496 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21285 states.
[2023-12-22 04:37:07,666 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21285 to 17887.
[2023-12-22 04:37:07,682 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17887 states, 17886 states have (on average 1.1792463379179245) internal successors, (21092), 17886 states have internal predecessors, (21092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:37:07,701 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17887 states to 17887 states and 21092 transitions.
[2023-12-22 04:37:07,701 INFO  L78                 Accepts]: Start accepts. Automaton has 17887 states and 21092 transitions. Word has length 2059
[2023-12-22 04:37:07,702 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:37:07,702 INFO  L495      AbstractCegarLoop]: Abstraction has 17887 states and 21092 transitions.
[2023-12-22 04:37:07,703 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 17 states have (on average 119.05882352941177) internal successors, (2024), 16 states have internal predecessors, (2024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:37:07,704 INFO  L276                IsEmpty]: Start isEmpty. Operand 17887 states and 21092 transitions.
[2023-12-22 04:37:07,753 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2102
[2023-12-22 04:37:07,755 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:37:07,760 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:37:07,764 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0
[2023-12-22 04:37:07,964 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:37:07,964 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:37:07,965 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:37:07,965 INFO  L85        PathProgramCache]: Analyzing trace with hash 964550800, now seen corresponding path program 1 times
[2023-12-22 04:37:07,975 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:37:07,975 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1959515524]
[2023-12-22 04:37:07,975 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:37:07,975 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:37:07,976 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:37:07,993 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:37:07,993 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2023-12-22 04:37:08,632 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:37:08,640 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2195 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-22 04:37:08,658 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:37:35,974 INFO  L134       CoverageAnalysis]: Checked inductivity of 598 backedges. 562 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2023-12-22 04:37:35,974 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:37:35,974 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:37:35,974 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1959515524]
[2023-12-22 04:37:35,974 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1959515524] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:37:35,974 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:37:35,974 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-22 04:37:35,974 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546565361]
[2023-12-22 04:37:35,975 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:37:35,976 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-22 04:37:35,976 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:37:35,978 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-22 04:37:35,978 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-12-22 04:37:35,992 INFO  L87              Difference]: Start difference. First operand 17887 states and 21092 transitions. Second operand  has 4 states, 4 states have (on average 516.5) internal successors, (2066), 4 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:37:46,103 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:37:46,103 INFO  L93              Difference]: Finished difference Result 42525 states and 52693 transitions.
[2023-12-22 04:37:46,104 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-22 04:37:46,104 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 516.5) internal successors, (2066), 4 states have internal predecessors, (2066), 0 states have call successors, (0), 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 2101
[2023-12-22 04:37:46,106 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:37:46,141 INFO  L225             Difference]: With dead ends: 42525
[2023-12-22 04:37:46,142 INFO  L226             Difference]: Without dead ends: 22168
[2023-12-22 04:37:46,162 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2100 GetRequests, 2098 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-12-22 04:37:46,163 INFO  L413           NwaCegarLoop]: 2161 mSDtfsCounter, 1689 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 9246 mSolverCounterSat, 3009 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1689 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 12255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3009 IncrementalHoareTripleChecker+Valid, 9246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time
[2023-12-22 04:37:46,163 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1689 Valid, 2439 Invalid, 12255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3009 Valid, 9246 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time]
[2023-12-22 04:37:46,182 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22168 states.
[2023-12-22 04:37:46,339 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22168 to 19876.
[2023-12-22 04:37:46,358 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19876 states, 19875 states have (on average 1.0998238993710692) internal successors, (21859), 19875 states have internal predecessors, (21859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:37:46,376 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19876 states to 19876 states and 21859 transitions.
[2023-12-22 04:37:46,377 INFO  L78                 Accepts]: Start accepts. Automaton has 19876 states and 21859 transitions. Word has length 2101
[2023-12-22 04:37:46,377 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:37:46,377 INFO  L495      AbstractCegarLoop]: Abstraction has 19876 states and 21859 transitions.
[2023-12-22 04:37:46,378 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 516.5) internal successors, (2066), 4 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:37:46,378 INFO  L276                IsEmpty]: Start isEmpty. Operand 19876 states and 21859 transitions.
[2023-12-22 04:37:46,422 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2235
[2023-12-22 04:37:46,422 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:37:46,423 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:37:46,432 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2023-12-22 04:37:46,630 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:37:46,630 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:37:46,631 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:37:46,631 INFO  L85        PathProgramCache]: Analyzing trace with hash 1512556940, now seen corresponding path program 1 times
[2023-12-22 04:37:46,641 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:37:46,642 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085243259]
[2023-12-22 04:37:46,642 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:37:46,642 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:37:46,642 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:37:46,643 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:37:46,644 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2023-12-22 04:37:47,249 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:37:47,260 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2329 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-22 04:37:47,283 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:38:44,921 INFO  L134       CoverageAnalysis]: Checked inductivity of 731 backedges. 695 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2023-12-22 04:38:44,921 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:38:44,921 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:38:44,922 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085243259]
[2023-12-22 04:38:44,922 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085243259] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:38:44,922 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:38:44,922 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2023-12-22 04:38:44,922 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99196361]
[2023-12-22 04:38:44,922 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:38:44,923 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:38:44,924 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:38:44,925 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:38:44,925 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:38:44,926 INFO  L87              Difference]: Start difference. First operand 19876 states and 21859 transitions. Second operand  has 16 states, 16 states have (on average 137.4375) internal successors, (2199), 16 states have internal predecessors, (2199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:39:20,946 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:39:20,946 INFO  L93              Difference]: Finished difference Result 47912 states and 53892 transitions.
[2023-12-22 04:39:20,947 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. 
[2023-12-22 04:39:20,948 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 137.4375) internal successors, (2199), 16 states have internal predecessors, (2199), 0 states have call successors, (0), 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 2234
[2023-12-22 04:39:20,949 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:39:20,983 INFO  L225             Difference]: With dead ends: 47912
[2023-12-22 04:39:20,983 INFO  L226             Difference]: Without dead ends: 29663
[2023-12-22 04:39:20,998 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2254 GetRequests, 2222 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=342, Invalid=780, Unknown=0, NotChecked=0, Total=1122
[2023-12-22 04:39:20,998 INFO  L413           NwaCegarLoop]: 484 mSDtfsCounter, 12528 mSDsluCounter, 1837 mSDsCounter, 0 mSdLazyCounter, 49123 mSolverCounterSat, 1102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12528 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 50225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1102 IncrementalHoareTripleChecker+Valid, 49123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.6s IncrementalHoareTripleChecker+Time
[2023-12-22 04:39:20,999 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12528 Valid, 2321 Invalid, 50225 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1102 Valid, 49123 Invalid, 0 Unknown, 0 Unchecked, 33.6s Time]
[2023-12-22 04:39:21,020 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 29663 states.
[2023-12-22 04:39:21,177 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 29663 to 22858.
[2023-12-22 04:39:21,192 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 22858 states, 22857 states have (on average 1.0870192938705867) internal successors, (24846), 22857 states have internal predecessors, (24846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:39:21,213 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22858 states to 22858 states and 24846 transitions.
[2023-12-22 04:39:21,214 INFO  L78                 Accepts]: Start accepts. Automaton has 22858 states and 24846 transitions. Word has length 2234
[2023-12-22 04:39:21,215 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:39:21,215 INFO  L495      AbstractCegarLoop]: Abstraction has 22858 states and 24846 transitions.
[2023-12-22 04:39:21,215 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 137.4375) internal successors, (2199), 16 states have internal predecessors, (2199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:39:21,215 INFO  L276                IsEmpty]: Start isEmpty. Operand 22858 states and 24846 transitions.
[2023-12-22 04:39:21,259 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2290
[2023-12-22 04:39:21,260 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:39:21,260 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:39:21,265 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0
[2023-12-22 04:39:21,464 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:39:21,465 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:39:21,466 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:39:21,466 INFO  L85        PathProgramCache]: Analyzing trace with hash 917863272, now seen corresponding path program 1 times
[2023-12-22 04:39:21,476 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:39:21,477 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [778253961]
[2023-12-22 04:39:21,477 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:39:21,477 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:39:21,477 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:39:21,478 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:39:21,480 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2023-12-22 04:39:22,163 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:39:22,173 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2400 conjuncts, 31 conjunts are in the unsatisfiable core
[2023-12-22 04:39:22,194 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:40:02,372 INFO  L134       CoverageAnalysis]: Checked inductivity of 1159 backedges. 858 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked.
[2023-12-22 04:40:02,372 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:40:02,372 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:40:02,372 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [778253961]
[2023-12-22 04:40:02,372 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [778253961] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:40:02,372 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:40:02,373 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17
[2023-12-22 04:40:02,373 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513090558]
[2023-12-22 04:40:02,375 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:40:02,377 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2023-12-22 04:40:02,377 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:40:02,379 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2023-12-22 04:40:02,379 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272
[2023-12-22 04:40:02,379 INFO  L87              Difference]: Start difference. First operand 22858 states and 24846 transitions. Second operand  has 17 states, 17 states have (on average 119.17647058823529) internal successors, (2026), 17 states have internal predecessors, (2026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:40:28,304 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:40:28,304 INFO  L93              Difference]: Finished difference Result 45669 states and 50169 transitions.
[2023-12-22 04:40:28,304 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2023-12-22 04:40:28,305 INFO  L78                 Accepts]: Start accepts. Automaton has  has 17 states, 17 states have (on average 119.17647058823529) internal successors, (2026), 17 states have internal predecessors, (2026), 0 states have call successors, (0), 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 2289
[2023-12-22 04:40:28,306 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:40:28,352 INFO  L225             Difference]: With dead ends: 45669
[2023-12-22 04:40:28,352 INFO  L226             Difference]: Without dead ends: 24438
[2023-12-22 04:40:28,359 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2299 GetRequests, 2273 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=250, Invalid=506, Unknown=0, NotChecked=0, Total=756
[2023-12-22 04:40:28,360 INFO  L413           NwaCegarLoop]: 502 mSDtfsCounter, 10312 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 42335 mSolverCounterSat, 534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10312 SdHoareTripleChecker+Valid, 2765 SdHoareTripleChecker+Invalid, 42869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 42335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time
[2023-12-22 04:40:28,360 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10312 Valid, 2765 Invalid, 42869 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [534 Valid, 42335 Invalid, 0 Unknown, 0 Unchecked, 24.7s Time]
[2023-12-22 04:40:28,374 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 24438 states.
[2023-12-22 04:40:28,507 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 24438 to 24435.
[2023-12-22 04:40:28,525 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 24435 states, 24434 states have (on average 1.0815666693951052) internal successors, (26427), 24434 states have internal predecessors, (26427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:40:28,548 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 24435 states to 24435 states and 26427 transitions.
[2023-12-22 04:40:28,548 INFO  L78                 Accepts]: Start accepts. Automaton has 24435 states and 26427 transitions. Word has length 2289
[2023-12-22 04:40:28,549 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:40:28,549 INFO  L495      AbstractCegarLoop]: Abstraction has 24435 states and 26427 transitions.
[2023-12-22 04:40:28,550 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 17 states have (on average 119.17647058823529) internal successors, (2026), 17 states have internal predecessors, (2026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:40:28,550 INFO  L276                IsEmpty]: Start isEmpty. Operand 24435 states and 26427 transitions.
[2023-12-22 04:40:28,602 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2584
[2023-12-22 04:40:28,602 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:40:28,603 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:40:28,608 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0
[2023-12-22 04:40:28,808 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:40:28,809 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:40:28,809 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:40:28,809 INFO  L85        PathProgramCache]: Analyzing trace with hash -1413666426, now seen corresponding path program 1 times
[2023-12-22 04:40:28,820 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:40:28,820 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293547165]
[2023-12-22 04:40:28,820 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:40:28,820 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:40:28,821 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:40:28,821 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:40:28,823 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process
[2023-12-22 04:40:29,488 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:40:29,503 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2708 conjuncts, 31 conjunts are in the unsatisfiable core
[2023-12-22 04:40:29,526 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:41:13,371 INFO  L134       CoverageAnalysis]: Checked inductivity of 2060 backedges. 1759 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked.
[2023-12-22 04:41:13,372 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:41:13,372 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:41:13,372 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [293547165]
[2023-12-22 04:41:13,372 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [293547165] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:41:13,372 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:41:13,372 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18
[2023-12-22 04:41:13,372 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113856410]
[2023-12-22 04:41:13,372 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:41:13,373 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2023-12-22 04:41:13,373 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:41:13,375 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2023-12-22 04:41:13,375 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306
[2023-12-22 04:41:13,375 INFO  L87              Difference]: Start difference. First operand 24435 states and 26427 transitions. Second operand  has 18 states, 18 states have (on average 128.88888888888889) internal successors, (2320), 18 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:41:45,288 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:41:45,288 INFO  L93              Difference]: Finished difference Result 50529 states and 55584 transitions.
[2023-12-22 04:41:45,288 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2023-12-22 04:41:45,289 INFO  L78                 Accepts]: Start accepts. Automaton has  has 18 states, 18 states have (on average 128.88888888888889) internal successors, (2320), 18 states have internal predecessors, (2320), 0 states have call successors, (0), 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 2583
[2023-12-22 04:41:45,291 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:41:45,336 INFO  L225             Difference]: With dead ends: 50529
[2023-12-22 04:41:45,336 INFO  L226             Difference]: Without dead ends: 27721
[2023-12-22 04:41:45,344 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2593 GetRequests, 2566 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=278, Invalid=534, Unknown=0, NotChecked=0, Total=812
[2023-12-22 04:41:45,346 INFO  L413           NwaCegarLoop]: 516 mSDtfsCounter, 12640 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 54247 mSolverCounterSat, 1082 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12640 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 55329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1082 IncrementalHoareTripleChecker+Valid, 54247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time
[2023-12-22 04:41:45,347 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12640 Valid, 2654 Invalid, 55329 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1082 Valid, 54247 Invalid, 0 Unknown, 0 Unchecked, 30.6s Time]
[2023-12-22 04:41:45,363 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27721 states.
[2023-12-22 04:41:45,511 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27721 to 26137.
[2023-12-22 04:41:45,528 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 26137 states, 26136 states have (on average 1.07671411080502) internal successors, (28141), 26136 states have internal predecessors, (28141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:41:45,553 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 26137 states to 26137 states and 28141 transitions.
[2023-12-22 04:41:45,553 INFO  L78                 Accepts]: Start accepts. Automaton has 26137 states and 28141 transitions. Word has length 2583
[2023-12-22 04:41:45,554 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:41:45,554 INFO  L495      AbstractCegarLoop]: Abstraction has 26137 states and 28141 transitions.
[2023-12-22 04:41:45,555 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 18 states, 18 states have (on average 128.88888888888889) internal successors, (2320), 18 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:41:45,555 INFO  L276                IsEmpty]: Start isEmpty. Operand 26137 states and 28141 transitions.
[2023-12-22 04:41:45,613 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2621
[2023-12-22 04:41:45,613 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:41:45,614 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:41:45,620 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0
[2023-12-22 04:41:45,818 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:41:45,819 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:41:45,819 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:41:45,819 INFO  L85        PathProgramCache]: Analyzing trace with hash 623982580, now seen corresponding path program 1 times
[2023-12-22 04:41:45,831 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:41:45,831 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [809789037]
[2023-12-22 04:41:45,831 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:41:45,831 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:41:45,831 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:41:45,832 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:41:45,834 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process
[2023-12-22 04:41:46,515 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:41:46,526 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2751 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:41:46,573 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:41:46,614 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 956 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked.
[2023-12-22 04:41:46,614 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:41:46,614 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:41:46,614 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [809789037]
[2023-12-22 04:41:46,614 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [809789037] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:41:46,614 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:41:46,615 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:41:46,615 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290533020]
[2023-12-22 04:41:46,615 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:41:46,616 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:41:46,616 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:41:46,618 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:41:46,618 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:41:46,618 INFO  L87              Difference]: Start difference. First operand 26137 states and 28141 transitions. Second operand  has 3 states, 3 states have (on average 748.6666666666666) internal successors, (2246), 3 states have internal predecessors, (2246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:41:51,874 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:41:51,875 INFO  L93              Difference]: Finished difference Result 64256 states and 70140 transitions.
[2023-12-22 04:41:51,875 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:41:51,875 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 748.6666666666666) internal successors, (2246), 3 states have internal predecessors, (2246), 0 states have call successors, (0), 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 2620
[2023-12-22 04:41:51,877 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:41:51,910 INFO  L225             Difference]: With dead ends: 64256
[2023-12-22 04:41:51,910 INFO  L226             Difference]: Without dead ends: 39746
[2023-12-22 04:41:51,920 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2619 GetRequests, 2618 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:41:51,921 INFO  L413           NwaCegarLoop]: 2891 mSDtfsCounter, 2002 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 4434 mSolverCounterSat, 1120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2002 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 5554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1120 IncrementalHoareTripleChecker+Valid, 4434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time
[2023-12-22 04:41:51,922 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2002 Valid, 3090 Invalid, 5554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1120 Valid, 4434 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time]
[2023-12-22 04:41:51,948 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 39746 states.
[2023-12-22 04:41:52,154 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 39746 to 36345.
[2023-12-22 04:41:52,175 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 36345 states, 36344 states have (on average 1.0704105216817081) internal successors, (38903), 36344 states have internal predecessors, (38903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:41:52,211 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 36345 states to 36345 states and 38903 transitions.
[2023-12-22 04:41:52,211 INFO  L78                 Accepts]: Start accepts. Automaton has 36345 states and 38903 transitions. Word has length 2620
[2023-12-22 04:41:52,211 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:41:52,212 INFO  L495      AbstractCegarLoop]: Abstraction has 36345 states and 38903 transitions.
[2023-12-22 04:41:52,212 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 748.6666666666666) internal successors, (2246), 3 states have internal predecessors, (2246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:41:52,212 INFO  L276                IsEmpty]: Start isEmpty. Operand 36345 states and 38903 transitions.
[2023-12-22 04:41:52,276 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2712
[2023-12-22 04:41:52,277 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:41:52,278 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:41:52,284 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0
[2023-12-22 04:41:52,483 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:41:52,483 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:41:52,483 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:41:52,484 INFO  L85        PathProgramCache]: Analyzing trace with hash 793845758, now seen corresponding path program 1 times
[2023-12-22 04:41:52,496 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:41:52,497 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178898415]
[2023-12-22 04:41:52,497 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:41:52,497 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:41:52,497 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:41:52,498 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:41:52,500 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process
[2023-12-22 04:41:53,195 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:41:53,209 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2781 conjuncts, 29 conjunts are in the unsatisfiable core
[2023-12-22 04:41:53,261 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:43:14,191 INFO  L134       CoverageAnalysis]: Checked inductivity of 1026 backedges. 1026 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 04:43:14,192 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:43:14,192 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:43:14,192 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178898415]
[2023-12-22 04:43:14,192 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1178898415] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:43:14,192 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:43:14,192 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2023-12-22 04:43:14,192 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402663887]
[2023-12-22 04:43:14,192 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:43:14,194 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2023-12-22 04:43:14,194 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:43:14,195 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2023-12-22 04:43:14,196 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272
[2023-12-22 04:43:14,196 INFO  L87              Difference]: Start difference. First operand 36345 states and 38903 transitions. Second operand  has 17 states, 17 states have (on average 159.47058823529412) internal successors, (2711), 16 states have internal predecessors, (2711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:47,765 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:43:47,765 INFO  L93              Difference]: Finished difference Result 106484 states and 115853 transitions.
[2023-12-22 04:43:47,765 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. 
[2023-12-22 04:43:47,766 INFO  L78                 Accepts]: Start accepts. Automaton has  has 17 states, 17 states have (on average 159.47058823529412) internal successors, (2711), 16 states have internal predecessors, (2711), 0 states have call successors, (0), 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 2711
[2023-12-22 04:43:47,768 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:43:47,860 INFO  L225             Difference]: With dead ends: 106484
[2023-12-22 04:43:47,860 INFO  L226             Difference]: Without dead ends: 71766
[2023-12-22 04:43:47,889 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2734 GetRequests, 2695 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=461, Invalid=1179, Unknown=0, NotChecked=0, Total=1640
[2023-12-22 04:43:47,889 INFO  L413           NwaCegarLoop]: 531 mSDtfsCounter, 16193 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 35519 mSolverCounterSat, 2804 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16193 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 38323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2804 IncrementalHoareTripleChecker+Valid, 35519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time
[2023-12-22 04:43:47,890 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [16193 Valid, 1772 Invalid, 38323 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2804 Valid, 35519 Invalid, 0 Unknown, 0 Unchecked, 29.8s Time]
[2023-12-22 04:43:47,947 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 71766 states.
[2023-12-22 04:43:48,455 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 71766 to 54753.
[2023-12-22 04:43:48,492 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 54753 states, 54752 states have (on average 1.0580252776154295) internal successors, (57929), 54752 states have internal predecessors, (57929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:48,551 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54753 states to 54753 states and 57929 transitions.
[2023-12-22 04:43:48,551 INFO  L78                 Accepts]: Start accepts. Automaton has 54753 states and 57929 transitions. Word has length 2711
[2023-12-22 04:43:48,552 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:43:48,552 INFO  L495      AbstractCegarLoop]: Abstraction has 54753 states and 57929 transitions.
[2023-12-22 04:43:48,553 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 17 states have (on average 159.47058823529412) internal successors, (2711), 16 states have internal predecessors, (2711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:48,553 INFO  L276                IsEmpty]: Start isEmpty. Operand 54753 states and 57929 transitions.
[2023-12-22 04:43:48,645 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2834
[2023-12-22 04:43:48,645 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:43:48,646 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:43:48,652 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0
[2023-12-22 04:43:48,851 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:43:48,852 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:43:48,852 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:43:48,852 INFO  L85        PathProgramCache]: Analyzing trace with hash -1119476978, now seen corresponding path program 1 times
[2023-12-22 04:43:48,865 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:43:48,865 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437223726]
[2023-12-22 04:43:48,866 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:43:48,866 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:43:48,866 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:43:48,867 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:43:48,868 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process
[2023-12-22 04:43:49,619 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:43:49,631 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2977 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:43:49,648 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:43:49,772 INFO  L134       CoverageAnalysis]: Checked inductivity of 2507 backedges. 1826 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked.
[2023-12-22 04:43:49,772 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:43:49,772 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:43:49,772 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437223726]
[2023-12-22 04:43:49,772 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [437223726] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:43:49,772 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:43:49,772 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:43:49,772 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036560910]
[2023-12-22 04:43:49,772 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:43:49,774 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:43:49,774 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:43:49,776 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:43:49,776 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:43:49,776 INFO  L87              Difference]: Start difference. First operand 54753 states and 57929 transitions. Second operand  has 3 states, 3 states have (on average 778.3333333333334) internal successors, (2335), 3 states have internal predecessors, (2335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:55,599 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:43:55,599 INFO  L93              Difference]: Finished difference Result 140080 states and 148859 transitions.
[2023-12-22 04:43:55,600 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:43:55,600 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 778.3333333333334) internal successors, (2335), 3 states have internal predecessors, (2335), 0 states have call successors, (0), 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 2833
[2023-12-22 04:43:55,601 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:43:55,699 INFO  L225             Difference]: With dead ends: 140080
[2023-12-22 04:43:55,699 INFO  L226             Difference]: Without dead ends: 86954
[2023-12-22 04:43:55,740 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2832 GetRequests, 2831 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:43:55,741 INFO  L413           NwaCegarLoop]: 2950 mSDtfsCounter, 1748 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 4817 mSolverCounterSat, 761 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 3156 SdHoareTripleChecker+Invalid, 5578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 761 IncrementalHoareTripleChecker+Valid, 4817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time
[2023-12-22 04:43:55,741 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1748 Valid, 3156 Invalid, 5578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [761 Valid, 4817 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time]
[2023-12-22 04:43:55,829 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 86954 states.
[2023-12-22 04:43:57,042 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 86954 to 78531.
[2023-12-22 04:43:57,085 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 78531 states, 78530 states have (on average 1.051088755889469) internal successors, (82542), 78530 states have internal predecessors, (82542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:57,170 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 78531 states to 78531 states and 82542 transitions.
[2023-12-22 04:43:57,170 INFO  L78                 Accepts]: Start accepts. Automaton has 78531 states and 82542 transitions. Word has length 2833
[2023-12-22 04:43:57,171 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:43:57,171 INFO  L495      AbstractCegarLoop]: Abstraction has 78531 states and 82542 transitions.
[2023-12-22 04:43:57,171 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 778.3333333333334) internal successors, (2335), 3 states have internal predecessors, (2335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:57,171 INFO  L276                IsEmpty]: Start isEmpty. Operand 78531 states and 82542 transitions.
[2023-12-22 04:43:57,393 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2954
[2023-12-22 04:43:57,393 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:43:57,394 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:43:57,400 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0
[2023-12-22 04:43:57,599 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:43:57,600 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:43:57,601 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:43:57,601 INFO  L85        PathProgramCache]: Analyzing trace with hash 1295863906, now seen corresponding path program 1 times
[2023-12-22 04:43:57,613 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:43:57,614 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1073271551]
[2023-12-22 04:43:57,614 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:43:57,614 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:43:57,614 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:43:57,619 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:43:57,619 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process
[2023-12-22 04:43:58,436 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:43:58,448 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3096 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:43:58,464 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:43:58,686 INFO  L134       CoverageAnalysis]: Checked inductivity of 2909 backedges. 2234 proven. 0 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked.
[2023-12-22 04:43:58,686 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:43:58,687 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:43:58,687 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1073271551]
[2023-12-22 04:43:58,687 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1073271551] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:43:58,687 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:43:58,687 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:43:58,687 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839273872]
[2023-12-22 04:43:58,687 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:43:58,689 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:43:58,689 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:43:58,691 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:43:58,692 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:43:58,692 INFO  L87              Difference]: Start difference. First operand 78531 states and 82542 transitions. Second operand  has 3 states, 3 states have (on average 820.3333333333334) internal successors, (2461), 3 states have internal predecessors, (2461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:04,621 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:44:04,621 INFO  L93              Difference]: Finished difference Result 201299 states and 212695 transitions.
[2023-12-22 04:44:04,622 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:44:04,622 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 820.3333333333334) internal successors, (2461), 3 states have internal predecessors, (2461), 0 states have call successors, (0), 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 2953
[2023-12-22 04:44:04,623 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:44:04,759 INFO  L225             Difference]: With dead ends: 201299
[2023-12-22 04:44:04,759 INFO  L226             Difference]: Without dead ends: 124395
[2023-12-22 04:44:04,795 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2952 GetRequests, 2951 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:44:04,801 INFO  L413           NwaCegarLoop]: 3190 mSDtfsCounter, 1553 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 4794 mSolverCounterSat, 941 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 5735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 941 IncrementalHoareTripleChecker+Valid, 4794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time
[2023-12-22 04:44:04,801 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1553 Valid, 3428 Invalid, 5735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [941 Valid, 4794 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time]
[2023-12-22 04:44:04,898 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 124395 states.
[2023-12-22 04:44:05,993 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 124395 to 124375.
[2023-12-22 04:44:06,073 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 124375 states, 124374 states have (on average 1.03816714104234) internal successors, (129121), 124374 states have internal predecessors, (129121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:06,225 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 124375 states to 124375 states and 129121 transitions.
[2023-12-22 04:44:06,225 INFO  L78                 Accepts]: Start accepts. Automaton has 124375 states and 129121 transitions. Word has length 2953
[2023-12-22 04:44:06,226 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:44:06,226 INFO  L495      AbstractCegarLoop]: Abstraction has 124375 states and 129121 transitions.
[2023-12-22 04:44:06,227 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 820.3333333333334) internal successors, (2461), 3 states have internal predecessors, (2461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:06,227 INFO  L276                IsEmpty]: Start isEmpty. Operand 124375 states and 129121 transitions.
[2023-12-22 04:44:06,628 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3146
[2023-12-22 04:44:06,628 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:44:06,630 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:44:06,637 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0
[2023-12-22 04:44:06,835 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:44:06,836 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:44:06,836 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:44:06,837 INFO  L85        PathProgramCache]: Analyzing trace with hash -195535367, now seen corresponding path program 1 times
[2023-12-22 04:44:06,960 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:44:06,960 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501935908]
[2023-12-22 04:44:06,960 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:44:06,960 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:44:06,960 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:44:06,961 INFO  L229       MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:44:06,966 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process
[2023-12-22 04:44:07,851 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:44:07,865 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3277 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:44:07,882 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:44:08,070 INFO  L134       CoverageAnalysis]: Checked inductivity of 2243 backedges. 1836 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked.
[2023-12-22 04:44:08,070 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:44:08,070 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:44:08,070 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501935908]
[2023-12-22 04:44:08,070 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [501935908] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:44:08,070 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:44:08,070 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:44:08,070 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558671922]
[2023-12-22 04:44:08,071 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:44:08,072 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:44:08,072 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:44:08,074 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:44:08,074 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:44:08,074 INFO  L87              Difference]: Start difference. First operand 124375 states and 129121 transitions. Second operand  has 3 states, 3 states have (on average 923.6666666666666) internal successors, (2771), 3 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:14,695 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:44:14,695 INFO  L93              Difference]: Finished difference Result 276000 states and 287897 transitions.
[2023-12-22 04:44:14,695 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:44:14,696 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 923.6666666666666) internal successors, (2771), 3 states have internal predecessors, (2771), 0 states have call successors, (0), 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 3145
[2023-12-22 04:44:14,697 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:44:15,191 INFO  L225             Difference]: With dead ends: 276000
[2023-12-22 04:44:15,191 INFO  L226             Difference]: Without dead ends: 153252
[2023-12-22 04:44:15,262 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3144 GetRequests, 3143 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:44:15,275 INFO  L413           NwaCegarLoop]: 3187 mSDtfsCounter, 1660 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 4673 mSolverCounterSat, 986 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 3398 SdHoareTripleChecker+Invalid, 5659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 986 IncrementalHoareTripleChecker+Valid, 4673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time
[2023-12-22 04:44:15,275 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1660 Valid, 3398 Invalid, 5659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [986 Valid, 4673 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time]
[2023-12-22 04:44:15,410 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 153252 states.
[2023-12-22 04:44:16,626 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 153252 to 143057.
[2023-12-22 04:44:16,707 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 143057 states, 143056 states have (on average 1.0342453304999442) internal successors, (147955), 143056 states have internal predecessors, (147955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:17,014 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 143057 states to 143057 states and 147955 transitions.
[2023-12-22 04:44:17,015 INFO  L78                 Accepts]: Start accepts. Automaton has 143057 states and 147955 transitions. Word has length 3145
[2023-12-22 04:44:17,016 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:44:17,016 INFO  L495      AbstractCegarLoop]: Abstraction has 143057 states and 147955 transitions.
[2023-12-22 04:44:17,016 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 923.6666666666666) internal successors, (2771), 3 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:17,016 INFO  L276                IsEmpty]: Start isEmpty. Operand 143057 states and 147955 transitions.
[2023-12-22 04:44:17,321 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3149
[2023-12-22 04:44:17,322 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:44:17,336 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:44:17,342 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0
[2023-12-22 04:44:17,542 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:44:17,542 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:44:17,542 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:44:17,543 INFO  L85        PathProgramCache]: Analyzing trace with hash -2034938092, now seen corresponding path program 1 times
[2023-12-22 04:44:17,556 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:44:17,556 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441720992]
[2023-12-22 04:44:17,556 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:44:17,556 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:44:17,556 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:44:17,557 INFO  L229       MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:44:17,584 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process
[2023-12-22 04:44:18,428 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:44:18,440 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3249 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:44:18,458 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:44:19,507 INFO  L134       CoverageAnalysis]: Checked inductivity of 1952 backedges. 1588 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked.
[2023-12-22 04:44:19,507 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:44:19,507 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:44:19,507 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441720992]
[2023-12-22 04:44:19,507 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1441720992] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:44:19,507 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:44:19,508 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 04:44:19,508 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828308673]
[2023-12-22 04:44:19,508 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:44:19,510 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:44:19,510 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:44:19,511 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:44:19,511 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:44:19,512 INFO  L87              Difference]: Start difference. First operand 143057 states and 147955 transitions. Second operand  has 3 states, 3 states have (on average 928.6666666666666) internal successors, (2786), 2 states have internal predecessors, (2786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:24,552 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:44:24,553 INFO  L93              Difference]: Finished difference Result 299764 states and 309652 transitions.
[2023-12-22 04:44:24,553 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:44:24,553 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 928.6666666666666) internal successors, (2786), 2 states have internal predecessors, (2786), 0 states have call successors, (0), 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 3148
[2023-12-22 04:44:24,554 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:44:24,726 INFO  L225             Difference]: With dead ends: 299764
[2023-12-22 04:44:24,726 INFO  L226             Difference]: Without dead ends: 141329
[2023-12-22 04:44:24,799 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3147 GetRequests, 3146 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:44:24,799 INFO  L413           NwaCegarLoop]: 971 mSDtfsCounter, 1299 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 4220 mSolverCounterSat, 826 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 5046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 826 IncrementalHoareTripleChecker+Valid, 4220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2023-12-22 04:44:24,799 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1299 Valid, 1087 Invalid, 5046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [826 Valid, 4220 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time]
[2023-12-22 04:44:24,918 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 141329 states.
[2023-12-22 04:44:26,272 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 141329 to 134533.
[2023-12-22 04:44:26,330 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 134533 states, 134532 states have (on average 1.0227306514435228) internal successors, (137590), 134532 states have internal predecessors, (137590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:26,468 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 134533 states to 134533 states and 137590 transitions.
[2023-12-22 04:44:26,468 INFO  L78                 Accepts]: Start accepts. Automaton has 134533 states and 137590 transitions. Word has length 3148
[2023-12-22 04:44:26,469 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:44:26,469 INFO  L495      AbstractCegarLoop]: Abstraction has 134533 states and 137590 transitions.
[2023-12-22 04:44:26,470 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 928.6666666666666) internal successors, (2786), 2 states have internal predecessors, (2786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:26,470 INFO  L276                IsEmpty]: Start isEmpty. Operand 134533 states and 137590 transitions.
[2023-12-22 04:44:26,817 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3197
[2023-12-22 04:44:26,817 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:44:26,818 INFO  L195           NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:44:26,824 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0
[2023-12-22 04:44:27,024 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:44:27,025 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:44:27,025 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:44:27,025 INFO  L85        PathProgramCache]: Analyzing trace with hash -24952231, now seen corresponding path program 1 times
[2023-12-22 04:44:27,038 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:44:27,038 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963492147]
[2023-12-22 04:44:27,039 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:44:27,039 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:44:27,039 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:44:27,040 INFO  L229       MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:44:27,041 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process
[2023-12-22 04:44:28,138 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:44:28,151 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3367 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:44:28,169 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:44:28,808 INFO  L134       CoverageAnalysis]: Checked inductivity of 3712 backedges. 2878 proven. 0 refuted. 0 times theorem prover too weak. 834 trivial. 0 not checked.
[2023-12-22 04:44:28,809 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:44:28,809 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:44:28,809 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963492147]
[2023-12-22 04:44:28,809 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [963492147] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:44:28,809 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:44:28,809 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:44:28,809 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015201913]
[2023-12-22 04:44:28,809 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:44:28,811 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:44:28,811 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:44:28,812 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:44:28,813 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:44:28,813 INFO  L87              Difference]: Start difference. First operand 134533 states and 137590 transitions. Second operand  has 3 states, 3 states have (on average 852.6666666666666) internal successors, (2558), 3 states have internal predecessors, (2558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:34,566 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:44:34,566 INFO  L93              Difference]: Finished difference Result 306485 states and 314093 transitions.
[2023-12-22 04:44:34,567 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:44:34,567 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 852.6666666666666) internal successors, (2558), 3 states have internal predecessors, (2558), 0 states have call successors, (0), 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 3196
[2023-12-22 04:44:34,568 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:44:34,796 INFO  L225             Difference]: With dead ends: 306485
[2023-12-22 04:44:34,796 INFO  L226             Difference]: Without dead ends: 173579
[2023-12-22 04:44:35,013 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3195 GetRequests, 3194 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:44:35,014 INFO  L413           NwaCegarLoop]: 2943 mSDtfsCounter, 1234 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 4188 mSolverCounterSat, 746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 3229 SdHoareTripleChecker+Invalid, 4934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 746 IncrementalHoareTripleChecker+Valid, 4188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2023-12-22 04:44:35,015 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 3229 Invalid, 4934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [746 Valid, 4188 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time]
[2023-12-22 04:44:35,125 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 173579 states.
[2023-12-22 04:44:36,496 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 173579 to 173576.
[2023-12-22 04:44:36,593 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 173576 states, 173575 states have (on average 1.0211147918767103) internal successors, (177240), 173575 states have internal predecessors, (177240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:37,035 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 173576 states to 173576 states and 177240 transitions.
[2023-12-22 04:44:37,035 INFO  L78                 Accepts]: Start accepts. Automaton has 173576 states and 177240 transitions. Word has length 3196
[2023-12-22 04:44:37,036 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:44:37,036 INFO  L495      AbstractCegarLoop]: Abstraction has 173576 states and 177240 transitions.
[2023-12-22 04:44:37,036 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 852.6666666666666) internal successors, (2558), 3 states have internal predecessors, (2558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:37,036 INFO  L276                IsEmpty]: Start isEmpty. Operand 173576 states and 177240 transitions.
[2023-12-22 04:44:37,416 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3340
[2023-12-22 04:44:37,416 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:44:37,417 INFO  L195           NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:44:37,423 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0
[2023-12-22 04:44:37,623 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:44:37,623 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:44:37,624 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:44:37,624 INFO  L85        PathProgramCache]: Analyzing trace with hash 619375838, now seen corresponding path program 1 times
[2023-12-22 04:44:37,638 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:44:37,638 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615127438]
[2023-12-22 04:44:37,638 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:44:37,638 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:44:37,638 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:44:37,640 INFO  L229       MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:44:37,641 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process
[2023-12-22 04:44:38,540 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:44:38,555 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3511 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:44:38,574 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:44:39,207 INFO  L134       CoverageAnalysis]: Checked inductivity of 4617 backedges. 3518 proven. 0 refuted. 0 times theorem prover too weak. 1099 trivial. 0 not checked.
[2023-12-22 04:44:39,207 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:44:39,208 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:44:39,208 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615127438]
[2023-12-22 04:44:39,208 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615127438] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:44:39,208 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:44:39,208 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:44:39,208 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383075430]
[2023-12-22 04:44:39,208 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:44:39,210 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:44:39,210 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:44:39,211 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:44:39,211 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:44:39,212 INFO  L87              Difference]: Start difference. First operand 173576 states and 177240 transitions. Second operand  has 3 states, 3 states have (on average 852.6666666666666) internal successors, (2558), 3 states have internal predecessors, (2558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:45,500 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:44:45,500 INFO  L93              Difference]: Finished difference Result 408367 states and 418219 transitions.
[2023-12-22 04:44:45,500 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:44:45,501 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 852.6666666666666) internal successors, (2558), 3 states have internal predecessors, (2558), 0 states have call successors, (0), 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 3339
[2023-12-22 04:44:45,501 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:44:46,075 INFO  L225             Difference]: With dead ends: 408367
[2023-12-22 04:44:46,076 INFO  L226             Difference]: Without dead ends: 234709
[2023-12-22 04:44:46,163 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3338 GetRequests, 3337 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:44:46,164 INFO  L413           NwaCegarLoop]: 1360 mSDtfsCounter, 1162 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 4544 mSolverCounterSat, 932 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 5476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 932 IncrementalHoareTripleChecker+Valid, 4544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time
[2023-12-22 04:44:46,175 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 1569 Invalid, 5476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [932 Valid, 4544 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time]
[2023-12-22 04:44:46,367 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 234709 states.
[2023-12-22 04:44:48,335 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 234709 to 229604.
[2023-12-22 04:44:48,456 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 229604 states, 229603 states have (on average 1.018135651537654) internal successors, (233767), 229603 states have internal predecessors, (233767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:48,973 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 229604 states to 229604 states and 233767 transitions.
[2023-12-22 04:44:48,974 INFO  L78                 Accepts]: Start accepts. Automaton has 229604 states and 233767 transitions. Word has length 3339
[2023-12-22 04:44:48,974 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:44:48,975 INFO  L495      AbstractCegarLoop]: Abstraction has 229604 states and 233767 transitions.
[2023-12-22 04:44:48,975 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 852.6666666666666) internal successors, (2558), 3 states have internal predecessors, (2558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:48,975 INFO  L276                IsEmpty]: Start isEmpty. Operand 229604 states and 233767 transitions.
[2023-12-22 04:44:49,457 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3476
[2023-12-22 04:44:49,457 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:44:49,458 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:44:49,465 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0
[2023-12-22 04:44:49,665 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:44:49,665 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:44:49,666 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:44:49,666 INFO  L85        PathProgramCache]: Analyzing trace with hash -620258166, now seen corresponding path program 1 times
[2023-12-22 04:44:49,680 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:44:49,680 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556800804]
[2023-12-22 04:44:49,681 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:44:49,681 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:44:49,681 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:44:49,682 INFO  L229       MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:44:49,708 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process
[2023-12-22 04:44:50,788 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:44:50,802 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3620 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:44:50,825 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:44:50,928 INFO  L134       CoverageAnalysis]: Checked inductivity of 3005 backedges. 1859 proven. 0 refuted. 0 times theorem prover too weak. 1146 trivial. 0 not checked.
[2023-12-22 04:44:50,928 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:44:50,928 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:44:50,928 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556800804]
[2023-12-22 04:44:50,928 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556800804] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:44:50,928 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:44:50,929 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:44:50,930 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042672213]
[2023-12-22 04:44:50,930 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:44:50,932 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:44:50,932 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:44:50,934 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:44:50,934 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:44:50,934 INFO  L87              Difference]: Start difference. First operand 229604 states and 233767 transitions. Second operand  has 3 states, 3 states have (on average 935.6666666666666) internal successors, (2807), 3 states have internal predecessors, (2807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:57,397 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:44:57,397 INFO  L93              Difference]: Finished difference Result 481360 states and 490565 transitions.
[2023-12-22 04:44:57,397 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:44:57,398 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 935.6666666666666) internal successors, (2807), 3 states have internal predecessors, (2807), 0 states have call successors, (0), 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 3475
[2023-12-22 04:44:57,398 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:44:57,788 INFO  L225             Difference]: With dead ends: 481360
[2023-12-22 04:44:57,788 INFO  L226             Difference]: Without dead ends: 251684
[2023-12-22 04:44:57,951 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3474 GetRequests, 3473 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:44:57,952 INFO  L413           NwaCegarLoop]: 3029 mSDtfsCounter, 1689 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 4565 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1689 SdHoareTripleChecker+Valid, 3236 SdHoareTripleChecker+Invalid, 5068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 4565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time
[2023-12-22 04:44:57,952 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1689 Valid, 3236 Invalid, 5068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 4565 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time]
[2023-12-22 04:44:58,158 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 251684 states.
[2023-12-22 04:45:00,348 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 251684 to 249980.
[2023-12-22 04:45:00,691 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 249980 states, 249979 states have (on average 1.0169214213993976) internal successors, (254209), 249979 states have internal predecessors, (254209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:00,978 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 249980 states to 249980 states and 254209 transitions.
[2023-12-22 04:45:00,979 INFO  L78                 Accepts]: Start accepts. Automaton has 249980 states and 254209 transitions. Word has length 3475
[2023-12-22 04:45:00,979 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:45:00,979 INFO  L495      AbstractCegarLoop]: Abstraction has 249980 states and 254209 transitions.
[2023-12-22 04:45:00,980 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 935.6666666666666) internal successors, (2807), 3 states have internal predecessors, (2807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:00,980 INFO  L276                IsEmpty]: Start isEmpty. Operand 249980 states and 254209 transitions.
[2023-12-22 04:45:01,532 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3726
[2023-12-22 04:45:01,532 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:45:01,548 INFO  L195           NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:45:01,560 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0
[2023-12-22 04:45:01,748 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:45:01,749 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:45:01,749 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:45:01,750 INFO  L85        PathProgramCache]: Analyzing trace with hash -1675089864, now seen corresponding path program 1 times
[2023-12-22 04:45:01,768 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:45:01,769 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310651796]
[2023-12-22 04:45:01,769 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:45:01,769 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:45:01,769 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:45:01,770 INFO  L229       MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:45:01,773 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process
[2023-12-22 04:45:02,868 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:45:02,885 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3887 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:45:02,944 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:45:03,115 INFO  L134       CoverageAnalysis]: Checked inductivity of 4637 backedges. 3200 proven. 0 refuted. 0 times theorem prover too weak. 1437 trivial. 0 not checked.
[2023-12-22 04:45:03,115 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:45:03,115 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:45:03,115 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310651796]
[2023-12-22 04:45:03,115 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1310651796] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:45:03,115 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:45:03,116 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:45:03,116 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794814784]
[2023-12-22 04:45:03,116 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:45:03,118 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:45:03,118 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:45:03,120 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:45:03,120 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:45:03,130 INFO  L87              Difference]: Start difference. First operand 249980 states and 254209 transitions. Second operand  has 3 states, 3 states have (on average 963.0) internal successors, (2889), 3 states have internal predecessors, (2889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:09,480 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:45:09,481 INFO  L93              Difference]: Finished difference Result 505122 states and 513620 transitions.
[2023-12-22 04:45:09,481 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:45:09,482 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 963.0) internal successors, (2889), 3 states have internal predecessors, (2889), 0 states have call successors, (0), 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 3725
[2023-12-22 04:45:09,482 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:45:09,890 INFO  L225             Difference]: With dead ends: 505122
[2023-12-22 04:45:09,890 INFO  L226             Difference]: Without dead ends: 244851
[2023-12-22 04:45:10,080 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3724 GetRequests, 3723 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:45:10,081 INFO  L413           NwaCegarLoop]: 2726 mSDtfsCounter, 1778 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 4378 mSolverCounterSat, 813 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1778 SdHoareTripleChecker+Valid, 2913 SdHoareTripleChecker+Invalid, 5191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 813 IncrementalHoareTripleChecker+Valid, 4378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time
[2023-12-22 04:45:10,081 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1778 Valid, 2913 Invalid, 5191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [813 Valid, 4378 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time]
[2023-12-22 04:45:10,281 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 244851 states.
[2023-12-22 04:45:12,317 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 244851 to 239751.
[2023-12-22 04:45:12,432 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 239751 states, 239750 states have (on average 1.0105067778936392) internal successors, (242269), 239750 states have internal predecessors, (242269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:12,968 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 239751 states to 239751 states and 242269 transitions.
[2023-12-22 04:45:12,968 INFO  L78                 Accepts]: Start accepts. Automaton has 239751 states and 242269 transitions. Word has length 3725
[2023-12-22 04:45:12,969 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:45:12,969 INFO  L495      AbstractCegarLoop]: Abstraction has 239751 states and 242269 transitions.
[2023-12-22 04:45:12,970 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 963.0) internal successors, (2889), 3 states have internal predecessors, (2889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:12,970 INFO  L276                IsEmpty]: Start isEmpty. Operand 239751 states and 242269 transitions.
[2023-12-22 04:45:13,511 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3785
[2023-12-22 04:45:13,511 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:45:13,513 INFO  L195           NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:45:13,538 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0
[2023-12-22 04:45:13,719 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:45:13,720 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:45:13,720 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:45:13,721 INFO  L85        PathProgramCache]: Analyzing trace with hash 556032181, now seen corresponding path program 1 times
[2023-12-22 04:45:13,736 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:45:13,737 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494976094]
[2023-12-22 04:45:13,737 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:45:13,737 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:45:13,737 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:45:13,738 INFO  L229       MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:45:13,764 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process
[2023-12-22 04:45:14,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:45:14,890 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3987 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:45:14,912 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:45:15,421 INFO  L134       CoverageAnalysis]: Checked inductivity of 7187 backedges. 4882 proven. 0 refuted. 0 times theorem prover too weak. 2305 trivial. 0 not checked.
[2023-12-22 04:45:15,421 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:45:15,421 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:45:15,421 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494976094]
[2023-12-22 04:45:15,421 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [494976094] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:45:15,421 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:45:15,422 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:45:15,422 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530649286]
[2023-12-22 04:45:15,422 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:45:15,423 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:45:15,423 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:45:15,425 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:45:15,425 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:45:15,425 INFO  L87              Difference]: Start difference. First operand 239751 states and 242269 transitions. Second operand  has 3 states, 3 states have (on average 837.6666666666666) internal successors, (2513), 3 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:21,781 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:45:21,781 INFO  L93              Difference]: Finished difference Result 505054 states and 510277 transitions.
[2023-12-22 04:45:21,781 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:45:21,782 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 837.6666666666666) internal successors, (2513), 3 states have internal predecessors, (2513), 0 states have call successors, (0), 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 3784
[2023-12-22 04:45:21,782 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:45:22,129 INFO  L225             Difference]: With dead ends: 505054
[2023-12-22 04:45:22,130 INFO  L226             Difference]: Without dead ends: 266930
[2023-12-22 04:45:22,170 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3783 GetRequests, 3782 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:45:22,172 INFO  L413           NwaCegarLoop]: 2912 mSDtfsCounter, 1530 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 4455 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 4602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 4455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time
[2023-12-22 04:45:22,172 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1530 Valid, 3104 Invalid, 4602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 4455 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time]
[2023-12-22 04:45:22,387 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 266930 states.
[2023-12-22 04:45:24,562 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 266930 to 263526.
[2023-12-22 04:45:24,687 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 263526 states, 263525 states have (on average 1.0097220377573286) internal successors, (266087), 263525 states have internal predecessors, (266087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:25,265 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 263526 states to 263526 states and 266087 transitions.
[2023-12-22 04:45:25,265 INFO  L78                 Accepts]: Start accepts. Automaton has 263526 states and 266087 transitions. Word has length 3784
[2023-12-22 04:45:25,266 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:45:25,266 INFO  L495      AbstractCegarLoop]: Abstraction has 263526 states and 266087 transitions.
[2023-12-22 04:45:25,267 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 837.6666666666666) internal successors, (2513), 3 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:25,267 INFO  L276                IsEmpty]: Start isEmpty. Operand 263526 states and 266087 transitions.
[2023-12-22 04:45:25,604 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3796
[2023-12-22 04:45:25,604 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:45:25,605 INFO  L195           NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:45:25,612 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0
[2023-12-22 04:45:25,812 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:45:25,812 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:45:25,813 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:45:25,813 INFO  L85        PathProgramCache]: Analyzing trace with hash -562201951, now seen corresponding path program 1 times
[2023-12-22 04:45:25,828 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:45:25,828 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005449831]
[2023-12-22 04:45:25,828 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:45:25,828 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:45:25,829 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:45:25,829 INFO  L229       MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:45:26,028 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process
[2023-12-22 04:45:27,111 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:45:27,127 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3972 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:45:27,147 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:45:27,290 INFO  L134       CoverageAnalysis]: Checked inductivity of 5096 backedges. 3553 proven. 0 refuted. 0 times theorem prover too weak. 1543 trivial. 0 not checked.
[2023-12-22 04:45:27,290 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:45:27,291 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:45:27,291 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005449831]
[2023-12-22 04:45:27,291 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005449831] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:45:27,291 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:45:27,291 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:45:27,291 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740320263]
[2023-12-22 04:45:27,291 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:45:27,293 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:45:27,293 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:45:27,295 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:45:27,295 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:45:27,295 INFO  L87              Difference]: Start difference. First operand 263526 states and 266087 transitions. Second operand  has 3 states, 3 states have (on average 895.6666666666666) internal successors, (2687), 3 states have internal predecessors, (2687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:33,768 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:45:33,773 INFO  L93              Difference]: Finished difference Result 583167 states and 589690 transitions.
[2023-12-22 04:45:33,773 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:45:33,773 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 895.6666666666666) internal successors, (2687), 3 states have internal predecessors, (2687), 0 states have call successors, (0), 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 3795
[2023-12-22 04:45:33,774 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:45:34,291 INFO  L225             Difference]: With dead ends: 583167
[2023-12-22 04:45:34,291 INFO  L226             Difference]: Without dead ends: 317870
[2023-12-22 04:45:34,661 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3794 GetRequests, 3793 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:45:34,662 INFO  L413           NwaCegarLoop]: 2796 mSDtfsCounter, 1689 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 4440 mSolverCounterSat, 800 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1689 SdHoareTripleChecker+Valid, 2972 SdHoareTripleChecker+Invalid, 5240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 800 IncrementalHoareTripleChecker+Valid, 4440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time
[2023-12-22 04:45:34,662 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1689 Valid, 2972 Invalid, 5240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [800 Valid, 4440 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time]
[2023-12-22 04:45:34,863 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 317870 states.
Received shutdown request...
[2023-12-22 04:45:35,369 INFO  L805   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-22 04:45:35,375 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0
[2023-12-22 04:45:35,408 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
[2023-12-22 04:45:35,408 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-22 04:45:35,575 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:45:35,575 WARN  L619      AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa.
[2023-12-22 04:45:35,593 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:45:35,595 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-12-22 04:45:35,596 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 04:45:35 BoogieIcfgContainer
[2023-12-22 04:45:35,596 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-22 04:45:35,596 INFO  L158              Benchmark]: Toolchain (without parser) took 830069.60ms. Allocated memory was 274.7MB in the beginning and 7.6GB in the end (delta: 7.3GB). Free memory was 189.9MB in the beginning and 6.2GB in the end (delta: -6.0GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB.
[2023-12-22 04:45:35,596 INFO  L158              Benchmark]: CDTParser took 0.12ms. Allocated memory is still 228.6MB. Free memory is still 180.8MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-22 04:45:35,597 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 1942.11ms. Allocated memory was 274.7MB in the beginning and 417.3MB in the end (delta: 142.6MB). Free memory was 189.9MB in the beginning and 241.5MB in the end (delta: -51.5MB). Peak memory consumption was 98.2MB. Max. memory is 8.0GB.
[2023-12-22 04:45:35,597 INFO  L158              Benchmark]: Boogie Procedure Inliner took 353.77ms. Allocated memory is still 417.3MB. Free memory was 241.5MB in the beginning and 270.3MB in the end (delta: -28.8MB). Peak memory consumption was 78.1MB. Max. memory is 8.0GB.
[2023-12-22 04:45:35,597 INFO  L158              Benchmark]: Boogie Preprocessor took 517.44ms. Allocated memory is still 417.3MB. Free memory was 270.3MB in the beginning and 251.4MB in the end (delta: 18.9MB). Peak memory consumption was 67.6MB. Max. memory is 8.0GB.
[2023-12-22 04:45:35,597 INFO  L158              Benchmark]: RCFGBuilder took 7417.62ms. Allocated memory was 417.3MB in the beginning and 1.2GB in the end (delta: 818.9MB). Free memory was 251.4MB in the beginning and 703.9MB in the end (delta: -452.5MB). Peak memory consumption was 367.5MB. Max. memory is 8.0GB.
[2023-12-22 04:45:35,597 INFO  L158              Benchmark]: TraceAbstraction took 819832.41ms. Allocated memory was 1.2GB in the beginning and 7.6GB in the end (delta: 6.3GB). Free memory was 702.9MB in the beginning and 6.2GB in the end (delta: -5.5GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB.
[2023-12-22 04:45:35,598 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.12ms. Allocated memory is still 228.6MB. Free memory is still 180.8MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 1942.11ms. Allocated memory was 274.7MB in the beginning and 417.3MB in the end (delta: 142.6MB). Free memory was 189.9MB in the beginning and 241.5MB in the end (delta: -51.5MB). Peak memory consumption was 98.2MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 353.77ms. Allocated memory is still 417.3MB. Free memory was 241.5MB in the beginning and 270.3MB in the end (delta: -28.8MB). Peak memory consumption was 78.1MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 517.44ms. Allocated memory is still 417.3MB. Free memory was 270.3MB in the beginning and 251.4MB in the end (delta: 18.9MB). Peak memory consumption was 67.6MB. Max. memory is 8.0GB.
 * RCFGBuilder took 7417.62ms. Allocated memory was 417.3MB in the beginning and 1.2GB in the end (delta: 818.9MB). Free memory was 251.4MB in the beginning and 703.9MB in the end (delta: -452.5MB). Peak memory consumption was 367.5MB. Max. memory is 8.0GB.
 * TraceAbstraction took 819832.41ms. Allocated memory was 1.2GB in the beginning and 7.6GB in the end (delta: 6.3GB). Free memory was 702.9MB in the beginning and 6.2GB in the end (delta: -5.5GB). Peak memory consumption was 1.1GB. 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: 11097]: Timeout (TraceAbstraction)
    Unable to prove that a call to reach_error is unreachable (line 11097). Cancelled while executing MinimizeSevpa.
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 2123 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 819.8s, OverallIterations: 21, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 4.2s, AutomataDifference: 321.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 118097 SdHoareTripleChecker+Valid, 290.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 118097 mSDsluCounter, 59975 SdHoareTripleChecker+Invalid, 248.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14534 mSDsCounter, 30423 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 380628 IncrementalHoareTripleChecker+Invalid, 411051 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30423 mSolverCounterUnsat, 45441 mSDtfsCounter, 380628 mSolverCounterSat, 1.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57070 GetRequests, 56818 SyntacticMatches, 0 SemanticMatches, 252 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 946 ImplicationChecksByTransitivity, 13.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=263526occurred in iteration=20, InterpolantAutomatonStates: 223, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 23.4s AutomataMinimizationTime, 21 MinimizatonAttempts, 75250 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.3s SsaConstructionTime, 9.5s SatisfiabilityAnalysisTime, 448.5s InterpolantComputationTime, 56964 NumberOfCodeBlocks, 56964 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 56943 ConstructedInterpolants, 0 QuantifiedInterpolants, 716317 SizeOfPredicates, 139 NumberOfNonLiveVariables, 59472 ConjunctsInSsa, 267 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 45794/45794 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