/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_label08.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 04:15:13,106 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 04:15:13,171 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 04:15:13,174 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 04:15:13,175 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 04:15:13,196 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 04:15:13,196 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 04:15:13,196 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 04:15:13,197 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 04:15:13,200 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 04:15:13,200 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 04:15:13,200 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 04:15:13,201 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 04:15:13,202 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 04:15:13,202 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 04:15:13,202 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 04:15:13,202 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 04:15:13,203 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 04:15:13,203 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 04:15:13,204 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 04:15:13,204 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 04:15:13,204 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 04:15:13,204 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 04:15:13,204 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 04:15:13,205 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 04:15:13,205 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 04:15:13,205 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 04:15:13,205 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 04:15:13,205 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 04:15:13,205 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 04:15:13,206 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 04:15:13,206 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 04:15:13,206 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 04:15:13,206 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 04:15:13,206 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 04:15:13,207 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 04:15:13,207 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 04:15:13,207 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 04:15:13,207 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 04:15:13,207 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 04:15:13,207 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 04:15:13,207 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 04:15:13,207 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 04:15:13,207 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 04:15:13,208 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 04:15:13,208 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 04:15:13,208 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 04:15:13,403 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 04:15:13,421 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 04:15:13,422 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 04:15:13,423 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 04:15:13,423 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 04:15:13,425 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label08.c
[2023-12-22 04:15:14,429 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 04:15:14,893 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 04:15:14,894 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label08.c
[2023-12-22 04:15:14,931 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d38990489/a37e3c2b08df446183eae2d71013cc5b/FLAGe71d8f8e8
[2023-12-22 04:15:14,945 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d38990489/a37e3c2b08df446183eae2d71013cc5b
[2023-12-22 04:15:14,947 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 04:15:14,948 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 04:15:14,949 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 04:15:14,950 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 04:15:14,953 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 04:15:14,953 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:15:14" (1/1) ...
[2023-12-22 04:15:14,954 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@717c46a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:15:14, skipping insertion in model container
[2023-12-22 04:15:14,954 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:15:14" (1/1) ...
[2023-12-22 04:15:15,100 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 04:15:16,402 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_label08.c[378623,378636]
[2023-12-22 04:15:16,419 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 04:15:16,429 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 04:15:17,026 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_label08.c[378623,378636]
[2023-12-22 04:15:17,030 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 04:15:17,063 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 04:15:17,064 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:15:17 WrapperNode
[2023-12-22 04:15:17,064 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 04:15:17,065 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 04:15:17,065 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 04:15:17,065 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 04:15:17,069 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:15:17" (1/1) ...
[2023-12-22 04:15:17,199 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:15:17" (1/1) ...
[2023-12-22 04:15:17,425 INFO  L138                Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12345
[2023-12-22 04:15:17,426 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 04:15:17,427 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 04:15:17,427 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 04:15:17,427 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 04:15:17,434 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:15:17" (1/1) ...
[2023-12-22 04:15:17,435 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:15:17" (1/1) ...
[2023-12-22 04:15:17,568 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:15:17" (1/1) ...
[2023-12-22 04:15:17,630 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 04:15:17,630 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:15:17" (1/1) ...
[2023-12-22 04:15:17,631 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:15:17" (1/1) ...
[2023-12-22 04:15:17,713 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:15:17" (1/1) ...
[2023-12-22 04:15:17,810 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:15:17" (1/1) ...
[2023-12-22 04:15:17,828 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:15:17" (1/1) ...
[2023-12-22 04:15:17,843 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:15:17" (1/1) ...
[2023-12-22 04:15:17,877 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 04:15:17,879 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 04:15:17,879 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 04:15:17,879 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 04:15:17,880 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:15:17" (1/1) ...
[2023-12-22 04:15:17,884 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 04:15:17,891 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 04:15:17,934 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 04:15:17,968 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 04:15:17,987 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 04:15:17,987 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 04:15:17,987 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 04:15:17,987 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 04:15:18,041 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 04:15:18,042 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 04:15:24,932 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 04:15:24,982 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 04:15:24,982 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 04:15:24,983 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:15:24 BoogieIcfgContainer
[2023-12-22 04:15:24,983 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 04:15:24,984 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 04:15:24,984 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 04:15:24,986 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 04:15:24,986 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:15:14" (1/3) ...
[2023-12-22 04:15:24,987 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a127735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:15:24, skipping insertion in model container
[2023-12-22 04:15:24,987 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:15:17" (2/3) ...
[2023-12-22 04:15:24,987 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a127735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:15:24, skipping insertion in model container
[2023-12-22 04:15:24,987 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:15:24" (3/3) ...
[2023-12-22 04:15:24,988 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem05_label08.c
[2023-12-22 04:15:24,998 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 04:15:24,998 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 04:15:25,050 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 04:15:25,054 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;@1650005, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 04:15:25,054 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 04:15:25,063 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 04:15:25,121 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1665
[2023-12-22 04:15:25,121 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:15:25,124 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]
[2023-12-22 04:15:25,124 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:15:25,128 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:15:25,129 INFO  L85        PathProgramCache]: Analyzing trace with hash 861379262, now seen corresponding path program 1 times
[2023-12-22 04:15:25,153 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:15:25,154 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871457619]
[2023-12-22 04:15:25,155 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:15:25,155 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 04:15:25,155 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:15:25,184 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 04:15:25,192 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 04:15:25,787 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:15:25,794 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1713 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 04:15:25,825 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:15:25,914 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 04:15:25,915 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:15:25,915 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:15:25,915 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871457619]
[2023-12-22 04:15:25,916 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871457619] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:15:25,916 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:15:25,916 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 04:15:25,918 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649190089]
[2023-12-22 04:15:25,918 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:15:25,924 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 04:15:25,924 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:15:25,945 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 04:15:25,946 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 04:15:25,951 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 832.0) internal successors, (1664), 2 states have internal predecessors, (1664), 0 states have call successors, (0), 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 04:15:26,104 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:15:26,105 INFO  L93              Difference]: Finished difference Result 4245 states and 8043 transitions.
[2023-12-22 04:15:26,112 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 04:15:26,114 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 832.0) internal successors, (1664), 2 states have internal predecessors, (1664), 0 states have call successors, (0), 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 1664
[2023-12-22 04:15:26,121 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:15:26,144 INFO  L225             Difference]: With dead ends: 4245
[2023-12-22 04:15:26,144 INFO  L226             Difference]: Without dead ends: 2121
[2023-12-22 04:15:26,151 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1663 GetRequests, 1663 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 04:15:26,153 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 04:15:26,154 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 04:15:26,168 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2121 states.
[2023-12-22 04:15:26,237 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 2121.
[2023-12-22 04:15:26,240 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 04:15:26,245 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 3957 transitions.
[2023-12-22 04:15:26,246 INFO  L78                 Accepts]: Start accepts. Automaton has 2121 states and 3957 transitions. Word has length 1664
[2023-12-22 04:15:26,248 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:15:26,249 INFO  L495      AbstractCegarLoop]: Abstraction has 2121 states and 3957 transitions.
[2023-12-22 04:15:26,249 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 832.0) internal successors, (1664), 2 states have internal predecessors, (1664), 0 states have call successors, (0), 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 04:15:26,249 INFO  L276                IsEmpty]: Start isEmpty. Operand 2121 states and 3957 transitions.
[2023-12-22 04:15:26,285 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1665
[2023-12-22 04:15:26,285 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:15:26,286 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]
[2023-12-22 04:15:26,294 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 (2)] Forceful destruction successful, exit code 0
[2023-12-22 04:15:26,497 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 04:15:26,497 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:15:26,497 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:15:26,498 INFO  L85        PathProgramCache]: Analyzing trace with hash -138361117, now seen corresponding path program 1 times
[2023-12-22 04:15:26,510 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:15:26,510 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079590559]
[2023-12-22 04:15:26,511 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:15:26,511 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 04:15:26,511 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:15:26,518 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 04:15:26,521 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 04:15:27,032 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:15:27,038 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1713 conjuncts, 31 conjunts are in the unsatisfiable core
[2023-12-22 04:15:27,058 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:16:07,444 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 04:16:07,448 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:16:07,448 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:16:07,448 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079590559]
[2023-12-22 04:16:07,448 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2079590559] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:16:07,448 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:16:07,449 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2023-12-22 04:16:07,449 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103448281]
[2023-12-22 04:16:07,449 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:16:07,455 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:16:07,456 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:16:07,458 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:16:07,458 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:16:07,458 INFO  L87              Difference]: Start difference. First operand 2121 states and 3957 transitions. Second operand  has 16 states, 16 states have (on average 104.0) internal successors, (1664), 15 states have internal predecessors, (1664), 0 states have call successors, (0), 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 04:16:23,056 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:16:23,057 INFO  L93              Difference]: Finished difference Result 5867 states and 11163 transitions.
[2023-12-22 04:16:23,057 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2023-12-22 04:16:23,058 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 104.0) internal successors, (1664), 15 states have internal predecessors, (1664), 0 states have call successors, (0), 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 1664
[2023-12-22 04:16:23,060 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:16:23,071 INFO  L225             Difference]: With dead ends: 5867
[2023-12-22 04:16:23,071 INFO  L226             Difference]: Without dead ends: 3747
[2023-12-22 04:16:23,075 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1674 GetRequests, 1649 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 04:16:23,076 INFO  L413           NwaCegarLoop]: 2327 mSDtfsCounter, 7660 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 23062 mSolverCounterSat, 1618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7660 SdHoareTripleChecker+Valid, 3442 SdHoareTripleChecker+Invalid, 24680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1618 IncrementalHoareTripleChecker+Valid, 23062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time
[2023-12-22 04:16:23,077 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [7660 Valid, 3442 Invalid, 24680 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1618 Valid, 23062 Invalid, 0 Unknown, 0 Unchecked, 14.7s Time]
[2023-12-22 04:16:23,082 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3747 states.
[2023-12-22 04:16:23,125 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3747 to 3747.
[2023-12-22 04:16:23,130 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 04:16:23,135 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3747 states to 3747 states and 5588 transitions.
[2023-12-22 04:16:23,135 INFO  L78                 Accepts]: Start accepts. Automaton has 3747 states and 5588 transitions. Word has length 1664
[2023-12-22 04:16:23,136 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:16:23,136 INFO  L495      AbstractCegarLoop]: Abstraction has 3747 states and 5588 transitions.
[2023-12-22 04:16:23,137 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 104.0) internal successors, (1664), 15 states have internal predecessors, (1664), 0 states have call successors, (0), 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 04:16:23,137 INFO  L276                IsEmpty]: Start isEmpty. Operand 3747 states and 5588 transitions.
[2023-12-22 04:16:23,192 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1774
[2023-12-22 04:16:23,192 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:16:23,193 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]
[2023-12-22 04:16:23,210 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 (3)] Forceful destruction successful, exit code 0
[2023-12-22 04:16:23,411 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 04:16:23,412 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:16:23,412 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:16:23,413 INFO  L85        PathProgramCache]: Analyzing trace with hash 399744413, now seen corresponding path program 1 times
[2023-12-22 04:16:23,425 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:16:23,426 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362161992]
[2023-12-22 04:16:23,426 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:16:23,426 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 04:16:23,426 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:16:23,427 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 04:16:23,451 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 04:16:23,946 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:16:23,954 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 29 conjunts are in the unsatisfiable core
[2023-12-22 04:16:24,022 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:17:30,043 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 04:17:30,044 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:17:30,060 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:17:30,063 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362161992]
[2023-12-22 04:17:30,063 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [362161992] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:17:30,063 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:17:30,064 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2023-12-22 04:17:30,065 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101641795]
[2023-12-22 04:17:30,067 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:17:30,073 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:17:30,074 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:17:30,075 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:17:30,075 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:17:30,076 INFO  L87              Difference]: Start difference. First operand 3747 states and 5588 transitions. Second operand  has 16 states, 16 states have (on average 110.8125) internal successors, (1773), 16 states have internal predecessors, (1773), 0 states have call successors, (0), 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 04:18:11,968 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:18:11,968 INFO  L93              Difference]: Finished difference Result 10832 states and 19277 transitions.
[2023-12-22 04:18:11,968 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. 
[2023-12-22 04:18:11,969 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 110.8125) internal successors, (1773), 16 states have internal predecessors, (1773), 0 states have call successors, (0), 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 1773
[2023-12-22 04:18:11,970 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:18:12,009 INFO  L225             Difference]: With dead ends: 10832
[2023-12-22 04:18:12,009 INFO  L226             Difference]: Without dead ends: 8712
[2023-12-22 04:18:12,012 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1792 GetRequests, 1760 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=341, Invalid=781, Unknown=0, NotChecked=0, Total=1122
[2023-12-22 04:18:12,015 INFO  L413           NwaCegarLoop]: 3884 mSDtfsCounter, 9901 mSDsluCounter, 1939 mSDsCounter, 0 mSdLazyCounter, 58220 mSolverCounterSat, 3038 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9901 SdHoareTripleChecker+Valid, 5823 SdHoareTripleChecker+Invalid, 61258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3038 IncrementalHoareTripleChecker+Valid, 58220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.5s IncrementalHoareTripleChecker+Time
[2023-12-22 04:18:12,016 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9901 Valid, 5823 Invalid, 61258 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3038 Valid, 58220 Invalid, 0 Unknown, 0 Unchecked, 39.5s Time]
[2023-12-22 04:18:12,021 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8712 states.
[2023-12-22 04:18:12,095 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8712 to 8708.
[2023-12-22 04:18:12,113 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 04:18:12,124 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8708 states to 8708 states and 10996 transitions.
[2023-12-22 04:18:12,124 INFO  L78                 Accepts]: Start accepts. Automaton has 8708 states and 10996 transitions. Word has length 1773
[2023-12-22 04:18:12,125 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:18:12,125 INFO  L495      AbstractCegarLoop]: Abstraction has 8708 states and 10996 transitions.
[2023-12-22 04:18:12,126 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 110.8125) internal successors, (1773), 16 states have internal predecessors, (1773), 0 states have call successors, (0), 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 04:18:12,126 INFO  L276                IsEmpty]: Start isEmpty. Operand 8708 states and 10996 transitions.
[2023-12-22 04:18:12,151 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1810
[2023-12-22 04:18:12,151 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:18:12,152 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]
[2023-12-22 04:18:12,163 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 (4)] Forceful destruction successful, exit code 0
[2023-12-22 04:18:12,356 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 04:18:12,358 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:18:12,359 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:18:12,360 INFO  L85        PathProgramCache]: Analyzing trace with hash 2089086534, now seen corresponding path program 1 times
[2023-12-22 04:18:12,368 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:18:12,368 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1203813707]
[2023-12-22 04:18:12,369 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:18:12,369 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 04:18:12,369 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:18:12,370 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 04:18:12,374 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 04:18:12,906 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:18:12,914 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1886 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-22 04:18:12,938 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:18:41,430 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 04:18:41,431 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:18:41,431 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:18:41,431 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1203813707]
[2023-12-22 04:18:41,431 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1203813707] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:18:41,431 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:18:41,431 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2023-12-22 04:18:41,432 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251990373]
[2023-12-22 04:18:41,432 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:18:41,433 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:18:41,433 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:18:41,434 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:18:41,434 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:18:41,435 INFO  L87              Difference]: Start difference. First operand 8708 states and 10996 transitions. Second operand  has 16 states, 16 states have (on average 113.0625) internal successors, (1809), 15 states have internal predecessors, (1809), 0 states have call successors, (0), 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 04:18:59,241 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:18:59,241 INFO  L93              Difference]: Finished difference Result 18684 states and 26083 transitions.
[2023-12-22 04:18:59,244 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2023-12-22 04:18:59,260 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 113.0625) internal successors, (1809), 15 states have internal predecessors, (1809), 0 states have call successors, (0), 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 1809
[2023-12-22 04:18:59,262 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:18:59,294 INFO  L225             Difference]: With dead ends: 18684
[2023-12-22 04:18:59,294 INFO  L226             Difference]: Without dead ends: 9905
[2023-12-22 04:18:59,302 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1818 GetRequests, 1794 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=233, Invalid=417, Unknown=0, NotChecked=0, Total=650
[2023-12-22 04:18:59,302 INFO  L413           NwaCegarLoop]: 1065 mSDtfsCounter, 11015 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 23384 mSolverCounterSat, 3991 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11015 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 27375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3991 IncrementalHoareTripleChecker+Valid, 23384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time
[2023-12-22 04:18:59,302 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11015 Valid, 1910 Invalid, 27375 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3991 Valid, 23384 Invalid, 0 Unknown, 0 Unchecked, 17.0s Time]
[2023-12-22 04:18:59,309 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9905 states.
[2023-12-22 04:18:59,377 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9905 to 9905.
[2023-12-22 04:18:59,384 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 04:18:59,399 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9905 states to 9905 states and 11986 transitions.
[2023-12-22 04:18:59,399 INFO  L78                 Accepts]: Start accepts. Automaton has 9905 states and 11986 transitions. Word has length 1809
[2023-12-22 04:18:59,400 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:18:59,400 INFO  L495      AbstractCegarLoop]: Abstraction has 9905 states and 11986 transitions.
[2023-12-22 04:18:59,400 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 113.0625) internal successors, (1809), 15 states have internal predecessors, (1809), 0 states have call successors, (0), 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 04:18:59,401 INFO  L276                IsEmpty]: Start isEmpty. Operand 9905 states and 11986 transitions.
[2023-12-22 04:18:59,433 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2044
[2023-12-22 04:18:59,433 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:18:59,434 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]
[2023-12-22 04:18:59,440 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 (5)] Ended with exit code 0
[2023-12-22 04:18:59,638 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 04:18:59,639 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:18:59,640 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:18:59,640 INFO  L85        PathProgramCache]: Analyzing trace with hash -1552279537, now seen corresponding path program 1 times
[2023-12-22 04:18:59,650 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:18:59,650 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898901491]
[2023-12-22 04:18:59,650 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:18:59,650 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 04:18:59,650 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:18:59,651 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 04:18:59,684 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 04:19:00,249 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:19:00,257 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2138 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-22 04:19:00,279 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:19:29,452 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 04:19:29,452 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:19:29,453 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:19:29,453 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898901491]
[2023-12-22 04:19:29,453 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [898901491] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:19:29,453 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:19:29,453 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2023-12-22 04:19:29,453 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619480378]
[2023-12-22 04:19:29,453 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:19:29,455 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:19:29,456 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:19:29,457 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:19:29,457 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:19:29,458 INFO  L87              Difference]: Start difference. First operand 9905 states and 11986 transitions. Second operand  has 16 states, 16 states have (on average 125.5) internal successors, (2008), 15 states have internal predecessors, (2008), 0 states have call successors, (0), 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 04:19:57,869 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:19:57,869 INFO  L93              Difference]: Finished difference Result 21032 states and 27194 transitions.
[2023-12-22 04:19:57,869 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2023-12-22 04:19:57,870 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 125.5) internal successors, (2008), 15 states have internal predecessors, (2008), 0 states have call successors, (0), 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 2043
[2023-12-22 04:19:57,871 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:19:57,893 INFO  L225             Difference]: With dead ends: 21032
[2023-12-22 04:19:57,893 INFO  L226             Difference]: Without dead ends: 12754
[2023-12-22 04:19:57,898 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2052 GetRequests, 2028 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=232, Invalid=418, Unknown=0, NotChecked=0, Total=650
[2023-12-22 04:19:57,899 INFO  L413           NwaCegarLoop]: 1039 mSDtfsCounter, 11679 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 45174 mSolverCounterSat, 2768 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11679 SdHoareTripleChecker+Valid, 3327 SdHoareTripleChecker+Invalid, 47942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2768 IncrementalHoareTripleChecker+Valid, 45174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.3s IncrementalHoareTripleChecker+Time
[2023-12-22 04:19:57,899 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11679 Valid, 3327 Invalid, 47942 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2768 Valid, 45174 Invalid, 0 Unknown, 0 Unchecked, 27.3s Time]
[2023-12-22 04:19:57,906 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12754 states.
[2023-12-22 04:19:57,986 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12754 to 11055.
[2023-12-22 04:19:57,994 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11055 states, 11054 states have (on average 1.1874434593812195) internal successors, (13126), 11054 states have internal predecessors, (13126), 0 states have call successors, (0), 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 04:19:58,004 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11055 states to 11055 states and 13126 transitions.
[2023-12-22 04:19:58,004 INFO  L78                 Accepts]: Start accepts. Automaton has 11055 states and 13126 transitions. Word has length 2043
[2023-12-22 04:19:58,005 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:19:58,005 INFO  L495      AbstractCegarLoop]: Abstraction has 11055 states and 13126 transitions.
[2023-12-22 04:19:58,006 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 125.5) internal successors, (2008), 15 states have internal predecessors, (2008), 0 states have call successors, (0), 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 04:19:58,006 INFO  L276                IsEmpty]: Start isEmpty. Operand 11055 states and 13126 transitions.
[2023-12-22 04:19:58,043 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2086
[2023-12-22 04:19:58,044 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:19:58,045 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]
[2023-12-22 04:19:58,067 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 04:19:58,249 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 04:19:58,250 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:19:58,250 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:19:58,250 INFO  L85        PathProgramCache]: Analyzing trace with hash -402911023, now seen corresponding path program 1 times
[2023-12-22 04:19:58,260 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:19:58,260 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880668720]
[2023-12-22 04:19:58,260 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:19:58,260 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 04:19:58,261 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:19:58,262 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 04:19:58,263 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 04:19:58,829 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:19:58,837 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2179 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-22 04:19:58,855 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:20:24,217 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 04:20:24,217 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:20:24,218 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:20:24,218 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880668720]
[2023-12-22 04:20:24,218 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [880668720] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:20:24,218 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:20:24,222 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-22 04:20:24,222 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132076105]
[2023-12-22 04:20:24,222 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:20:24,223 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-22 04:20:24,223 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:20:24,225 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-22 04:20:24,225 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-12-22 04:20:24,225 INFO  L87              Difference]: Start difference. First operand 11055 states and 13126 transitions. Second operand  has 4 states, 4 states have (on average 512.5) internal successors, (2050), 4 states have internal predecessors, (2050), 0 states have call successors, (0), 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 04:20:33,606 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:20:33,607 INFO  L93              Difference]: Finished difference Result 27188 states and 34398 transitions.
[2023-12-22 04:20:33,607 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-22 04:20:33,608 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 512.5) internal successors, (2050), 4 states have internal predecessors, (2050), 0 states have call successors, (0), 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 2085
[2023-12-22 04:20:33,609 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:20:33,626 INFO  L225             Difference]: With dead ends: 27188
[2023-12-22 04:20:33,626 INFO  L226             Difference]: Without dead ends: 13072
[2023-12-22 04:20:33,638 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2084 GetRequests, 2082 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 04:20:33,639 INFO  L413           NwaCegarLoop]: 2153 mSDtfsCounter, 1683 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 10176 mSolverCounterSat, 2354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1683 SdHoareTripleChecker+Valid, 2548 SdHoareTripleChecker+Invalid, 12530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2354 IncrementalHoareTripleChecker+Valid, 10176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time
[2023-12-22 04:20:33,639 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1683 Valid, 2548 Invalid, 12530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2354 Valid, 10176 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time]
[2023-12-22 04:20:33,647 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13072 states.
[2023-12-22 04:20:33,769 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13072 to 11371.
[2023-12-22 04:20:33,777 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11371 states, 11370 states have (on average 1.1167106420404573) internal successors, (12697), 11370 states have internal predecessors, (12697), 0 states have call successors, (0), 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 04:20:33,786 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11371 states to 11371 states and 12697 transitions.
[2023-12-22 04:20:33,786 INFO  L78                 Accepts]: Start accepts. Automaton has 11371 states and 12697 transitions. Word has length 2085
[2023-12-22 04:20:33,787 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:20:33,787 INFO  L495      AbstractCegarLoop]: Abstraction has 11371 states and 12697 transitions.
[2023-12-22 04:20:33,787 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 512.5) internal successors, (2050), 4 states have internal predecessors, (2050), 0 states have call successors, (0), 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 04:20:33,787 INFO  L276                IsEmpty]: Start isEmpty. Operand 11371 states and 12697 transitions.
[2023-12-22 04:20:33,821 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2219
[2023-12-22 04:20:33,822 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:20:33,822 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]
[2023-12-22 04:20:33,829 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 04:20:34,027 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 04:20:34,028 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:20:34,028 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:20:34,029 INFO  L85        PathProgramCache]: Analyzing trace with hash 4055915, now seen corresponding path program 1 times
[2023-12-22 04:20:34,038 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:20:34,038 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [510750642]
[2023-12-22 04:20:34,039 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:20:34,039 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 04:20:34,039 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:20:34,040 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 04:20:34,040 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 04:20:34,638 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:20:34,647 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2313 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-22 04:20:34,666 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:21:33,000 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 04:21:33,000 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:21:33,005 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:21:33,005 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [510750642]
[2023-12-22 04:21:33,005 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [510750642] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:21:33,005 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:21:33,005 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2023-12-22 04:21:33,005 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290534144]
[2023-12-22 04:21:33,005 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:21:33,007 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:21:33,007 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:21:33,008 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:21:33,008 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:21:33,009 INFO  L87              Difference]: Start difference. First operand 11371 states and 12697 transitions. Second operand  has 16 states, 16 states have (on average 136.4375) internal successors, (2183), 16 states have internal predecessors, (2183), 0 states have call successors, (0), 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 04:22:07,985 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:22:07,986 INFO  L93              Difference]: Finished difference Result 30922 states and 35748 transitions.
[2023-12-22 04:22:07,986 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. 
[2023-12-22 04:22:07,986 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 136.4375) internal successors, (2183), 16 states have internal predecessors, (2183), 0 states have call successors, (0), 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 2218
[2023-12-22 04:22:07,988 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:22:08,010 INFO  L225             Difference]: With dead ends: 30922
[2023-12-22 04:22:08,010 INFO  L226             Difference]: Without dead ends: 21178
[2023-12-22 04:22:08,016 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2238 GetRequests, 2206 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=342, Invalid=780, Unknown=0, NotChecked=0, Total=1122
[2023-12-22 04:22:08,016 INFO  L413           NwaCegarLoop]: 484 mSDtfsCounter, 13440 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 45034 mSolverCounterSat, 1379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13440 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 46413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1379 IncrementalHoareTripleChecker+Valid, 45034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.6s IncrementalHoareTripleChecker+Time
[2023-12-22 04:22:08,017 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13440 Valid, 2081 Invalid, 46413 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1379 Valid, 45034 Invalid, 0 Unknown, 0 Unchecked, 32.6s Time]
[2023-12-22 04:22:08,026 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21178 states.
[2023-12-22 04:22:08,135 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21178 to 19466.
[2023-12-22 04:22:08,148 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19466 states, 19465 states have (on average 1.091292062676599) internal successors, (21242), 19465 states have internal predecessors, (21242), 0 states have call successors, (0), 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 04:22:08,165 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19466 states to 19466 states and 21242 transitions.
[2023-12-22 04:22:08,165 INFO  L78                 Accepts]: Start accepts. Automaton has 19466 states and 21242 transitions. Word has length 2218
[2023-12-22 04:22:08,166 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:22:08,166 INFO  L495      AbstractCegarLoop]: Abstraction has 19466 states and 21242 transitions.
[2023-12-22 04:22:08,167 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 136.4375) internal successors, (2183), 16 states have internal predecessors, (2183), 0 states have call successors, (0), 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 04:22:08,167 INFO  L276                IsEmpty]: Start isEmpty. Operand 19466 states and 21242 transitions.
[2023-12-22 04:22:08,210 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2274
[2023-12-22 04:22:08,211 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:22:08,211 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]
[2023-12-22 04:22:08,216 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 (8)] Forceful destruction successful, exit code 0
[2023-12-22 04:22:08,415 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 04:22:08,416 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:22:08,416 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:22:08,417 INFO  L85        PathProgramCache]: Analyzing trace with hash 734178345, now seen corresponding path program 1 times
[2023-12-22 04:22:08,427 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:22:08,427 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989368807]
[2023-12-22 04:22:08,427 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:22:08,427 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 04:22:08,428 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:22:08,429 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 04:22:08,430 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 04:22:09,011 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:22:09,021 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2384 conjuncts, 31 conjunts are in the unsatisfiable core
[2023-12-22 04:22:09,043 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:22:49,307 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 04:22:49,307 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:22:49,307 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:22:49,307 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989368807]
[2023-12-22 04:22:49,308 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [989368807] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:22:49,308 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:22:49,308 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17
[2023-12-22 04:22:49,308 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502962832]
[2023-12-22 04:22:49,308 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:22:49,309 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2023-12-22 04:22:49,309 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:22:49,311 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2023-12-22 04:22:49,311 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272
[2023-12-22 04:22:49,311 INFO  L87              Difference]: Start difference. First operand 19466 states and 21242 transitions. Second operand  has 17 states, 17 states have (on average 118.23529411764706) internal successors, (2010), 17 states have internal predecessors, (2010), 0 states have call successors, (0), 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 04:23:04,772 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:23:04,772 INFO  L93              Difference]: Finished difference Result 38885 states and 42961 transitions.
[2023-12-22 04:23:04,772 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2023-12-22 04:23:04,773 INFO  L78                 Accepts]: Start accepts. Automaton has  has 17 states, 17 states have (on average 118.23529411764706) internal successors, (2010), 17 states have internal predecessors, (2010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2273
[2023-12-22 04:23:04,774 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:23:04,800 INFO  L225             Difference]: With dead ends: 38885
[2023-12-22 04:23:04,800 INFO  L226             Difference]: Without dead ends: 21046
[2023-12-22 04:23:04,815 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2283 GetRequests, 2257 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 04:23:04,816 INFO  L413           NwaCegarLoop]: 511 mSDtfsCounter, 8967 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 24609 mSolverCounterSat, 535 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8967 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 25144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 535 IncrementalHoareTripleChecker+Valid, 24609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time
[2023-12-22 04:23:04,816 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8967 Valid, 1458 Invalid, 25144 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [535 Valid, 24609 Invalid, 0 Unknown, 0 Unchecked, 14.5s Time]
[2023-12-22 04:23:04,830 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21046 states.
[2023-12-22 04:23:05,021 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21046 to 21043.
[2023-12-22 04:23:05,034 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 21043 states, 21042 states have (on average 1.0846402433228781) internal successors, (22823), 21042 states have internal predecessors, (22823), 0 states have call successors, (0), 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 04:23:05,053 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21043 states to 21043 states and 22823 transitions.
[2023-12-22 04:23:05,053 INFO  L78                 Accepts]: Start accepts. Automaton has 21043 states and 22823 transitions. Word has length 2273
[2023-12-22 04:23:05,054 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:23:05,055 INFO  L495      AbstractCegarLoop]: Abstraction has 21043 states and 22823 transitions.
[2023-12-22 04:23:05,055 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 17 states have (on average 118.23529411764706) internal successors, (2010), 17 states have internal predecessors, (2010), 0 states have call successors, (0), 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 04:23:05,055 INFO  L276                IsEmpty]: Start isEmpty. Operand 21043 states and 22823 transitions.
[2023-12-22 04:23:05,102 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2568
[2023-12-22 04:23:05,103 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:23:05,103 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]
[2023-12-22 04:23:05,111 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 04:23:05,311 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 04:23:05,312 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:23:05,312 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:23:05,312 INFO  L85        PathProgramCache]: Analyzing trace with hash -1139659385, now seen corresponding path program 1 times
[2023-12-22 04:23:05,324 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:23:05,324 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364443415]
[2023-12-22 04:23:05,324 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:23:05,324 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 04:23:05,324 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:23:05,325 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 04:23:05,326 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 04:23:05,991 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:23:06,005 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2692 conjuncts, 31 conjunts are in the unsatisfiable core
[2023-12-22 04:23:06,028 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:23:50,488 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 04:23:50,488 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:23:50,489 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:23:50,489 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364443415]
[2023-12-22 04:23:50,489 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364443415] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:23:50,489 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:23:50,489 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18
[2023-12-22 04:23:50,489 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125406338]
[2023-12-22 04:23:50,489 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:23:50,490 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2023-12-22 04:23:50,490 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:23:50,492 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2023-12-22 04:23:50,492 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306
[2023-12-22 04:23:50,492 INFO  L87              Difference]: Start difference. First operand 21043 states and 22823 transitions. Second operand  has 18 states, 18 states have (on average 128.0) internal successors, (2304), 18 states have internal predecessors, (2304), 0 states have call successors, (0), 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 04:24:10,950 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:24:10,950 INFO  L93              Difference]: Finished difference Result 43745 states and 48376 transitions.
[2023-12-22 04:24:10,950 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2023-12-22 04:24:10,951 INFO  L78                 Accepts]: Start accepts. Automaton has  has 18 states, 18 states have (on average 128.0) internal successors, (2304), 18 states have internal predecessors, (2304), 0 states have call successors, (0), 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 2567
[2023-12-22 04:24:10,952 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:24:10,978 INFO  L225             Difference]: With dead ends: 43745
[2023-12-22 04:24:10,979 INFO  L226             Difference]: Without dead ends: 24329
[2023-12-22 04:24:10,987 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2577 GetRequests, 2550 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 04:24:10,987 INFO  L413           NwaCegarLoop]: 525 mSDtfsCounter, 11724 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 34445 mSolverCounterSat, 1089 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11724 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 35534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1089 IncrementalHoareTripleChecker+Valid, 34445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time
[2023-12-22 04:24:10,987 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11724 Valid, 927 Invalid, 35534 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1089 Valid, 34445 Invalid, 0 Unknown, 0 Unchecked, 19.4s Time]
[2023-12-22 04:24:11,002 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 24329 states.
[2023-12-22 04:24:11,149 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 24329 to 22745.
[2023-12-22 04:24:11,165 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 22745 states, 22744 states have (on average 1.0788339781920506) internal successors, (24537), 22744 states have internal predecessors, (24537), 0 states have call successors, (0), 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 04:24:11,185 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22745 states to 22745 states and 24537 transitions.
[2023-12-22 04:24:11,186 INFO  L78                 Accepts]: Start accepts. Automaton has 22745 states and 24537 transitions. Word has length 2567
[2023-12-22 04:24:11,187 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:24:11,187 INFO  L495      AbstractCegarLoop]: Abstraction has 22745 states and 24537 transitions.
[2023-12-22 04:24:11,187 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 18 states, 18 states have (on average 128.0) internal successors, (2304), 18 states have internal predecessors, (2304), 0 states have call successors, (0), 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 04:24:11,187 INFO  L276                IsEmpty]: Start isEmpty. Operand 22745 states and 24537 transitions.
[2023-12-22 04:24:11,238 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2605
[2023-12-22 04:24:11,238 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:24:11,239 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]
[2023-12-22 04:24:11,245 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 04:24:11,440 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 04:24:11,440 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:24:11,440 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:24:11,441 INFO  L85        PathProgramCache]: Analyzing trace with hash -618297837, now seen corresponding path program 1 times
[2023-12-22 04:24:11,452 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:24:11,452 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1490437196]
[2023-12-22 04:24:11,453 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:24:11,453 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 04:24:11,453 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:24:11,454 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 04:24:11,455 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 04:24:12,177 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:24:12,189 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2735 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:24:12,207 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:24:12,242 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 04:24:12,242 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:24:12,242 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:24:12,242 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1490437196]
[2023-12-22 04:24:12,242 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1490437196] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:24:12,242 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:24:12,243 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:24:12,243 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774746339]
[2023-12-22 04:24:12,243 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:24:12,244 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:24:12,244 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:24:12,246 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:24:12,246 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:24:12,246 INFO  L87              Difference]: Start difference. First operand 22745 states and 24537 transitions. Second operand  has 3 states, 3 states have (on average 743.3333333333334) internal successors, (2230), 3 states have internal predecessors, (2230), 0 states have call successors, (0), 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 04:24:17,452 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:24:17,452 INFO  L93              Difference]: Finished difference Result 55776 states and 61017 transitions.
[2023-12-22 04:24:17,453 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:24:17,453 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 743.3333333333334) internal successors, (2230), 3 states have internal predecessors, (2230), 0 states have call successors, (0), 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 2604
[2023-12-22 04:24:17,454 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:24:17,487 INFO  L225             Difference]: With dead ends: 55776
[2023-12-22 04:24:17,487 INFO  L226             Difference]: Without dead ends: 34658
[2023-12-22 04:24:17,517 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2603 GetRequests, 2602 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 04:24:17,517 INFO  L413           NwaCegarLoop]: 2901 mSDtfsCounter, 2005 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 4437 mSolverCounterSat, 1121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2005 SdHoareTripleChecker+Valid, 3106 SdHoareTripleChecker+Invalid, 5558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1121 IncrementalHoareTripleChecker+Valid, 4437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time
[2023-12-22 04:24:17,518 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2005 Valid, 3106 Invalid, 5558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1121 Valid, 4437 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time]
[2023-12-22 04:24:17,539 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 34658 states.
[2023-12-22 04:24:17,742 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 34658 to 34653.
[2023-12-22 04:24:17,765 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 34653 states, 34652 states have (on average 1.0671245526953712) internal successors, (36978), 34652 states have internal predecessors, (36978), 0 states have call successors, (0), 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 04:24:17,796 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 34653 states to 34653 states and 36978 transitions.
[2023-12-22 04:24:17,797 INFO  L78                 Accepts]: Start accepts. Automaton has 34653 states and 36978 transitions. Word has length 2604
[2023-12-22 04:24:17,797 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:24:17,797 INFO  L495      AbstractCegarLoop]: Abstraction has 34653 states and 36978 transitions.
[2023-12-22 04:24:17,798 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 743.3333333333334) internal successors, (2230), 3 states have internal predecessors, (2230), 0 states have call successors, (0), 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 04:24:17,798 INFO  L276                IsEmpty]: Start isEmpty. Operand 34653 states and 36978 transitions.
[2023-12-22 04:24:17,984 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2693
[2023-12-22 04:24:17,984 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:24:17,985 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:17,991 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 04:24:18,190 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 04:24:18,191 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:24:18,192 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:24:18,192 INFO  L85        PathProgramCache]: Analyzing trace with hash 989651520, now seen corresponding path program 1 times
[2023-12-22 04:24:18,204 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:24:18,204 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398236320]
[2023-12-22 04:24:18,204 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:24:18,205 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 04:24:18,205 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:24:18,206 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 04:24:18,236 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 04:24:18,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:24:18,912 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2822 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:24:18,930 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:24:19,056 INFO  L134       CoverageAnalysis]: Checked inductivity of 1895 backedges. 1339 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked.
[2023-12-22 04:24:19,056 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:24:19,056 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:24:19,056 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398236320]
[2023-12-22 04:24:19,056 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398236320] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:24:19,056 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:24:19,057 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:24:19,057 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136129001]
[2023-12-22 04:24:19,057 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:24:19,058 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:24:19,058 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:24:19,060 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:24:19,060 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:24:19,060 INFO  L87              Difference]: Start difference. First operand 34653 states and 36978 transitions. Second operand  has 3 states, 3 states have (on average 772.6666666666666) internal successors, (2318), 3 states have internal predecessors, (2318), 0 states have call successors, (0), 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 04:24:24,703 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:24:24,703 INFO  L93              Difference]: Finished difference Result 91412 states and 98208 transitions.
[2023-12-22 04:24:24,704 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:24:24,704 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 772.6666666666666) internal successors, (2318), 3 states have internal predecessors, (2318), 0 states have call successors, (0), 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 2692
[2023-12-22 04:24:24,705 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:24:24,764 INFO  L225             Difference]: With dead ends: 91412
[2023-12-22 04:24:24,764 INFO  L226             Difference]: Without dead ends: 58386
[2023-12-22 04:24:24,788 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2691 GetRequests, 2690 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 04:24:24,788 INFO  L413           NwaCegarLoop]: 2920 mSDtfsCounter, 1771 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 4938 mSolverCounterSat, 854 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1771 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 5792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 854 IncrementalHoareTripleChecker+Valid, 4938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time
[2023-12-22 04:24:24,788 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1771 Valid, 3130 Invalid, 5792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [854 Valid, 4938 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time]
[2023-12-22 04:24:24,826 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 58386 states.
[2023-12-22 04:24:25,146 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 58386 to 49947.
[2023-12-22 04:24:25,180 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 49947 states, 49946 states have (on average 1.0617066431746287) internal successors, (53028), 49946 states have internal predecessors, (53028), 0 states have call successors, (0), 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 04:24:25,231 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 49947 states to 49947 states and 53028 transitions.
[2023-12-22 04:24:25,231 INFO  L78                 Accepts]: Start accepts. Automaton has 49947 states and 53028 transitions. Word has length 2692
[2023-12-22 04:24:25,232 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:24:25,232 INFO  L495      AbstractCegarLoop]: Abstraction has 49947 states and 53028 transitions.
[2023-12-22 04:24:25,233 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 772.6666666666666) internal successors, (2318), 3 states have internal predecessors, (2318), 0 states have call successors, (0), 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 04:24:25,233 INFO  L276                IsEmpty]: Start isEmpty. Operand 49947 states and 53028 transitions.
[2023-12-22 04:24:25,302 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2767
[2023-12-22 04:24:25,302 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:24:25,303 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:25,311 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 04:24:25,508 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 04:24:25,509 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:24:25,509 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:24:25,510 INFO  L85        PathProgramCache]: Analyzing trace with hash -1907332063, now seen corresponding path program 1 times
[2023-12-22 04:24:25,522 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:24:25,523 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150772930]
[2023-12-22 04:24:25,523 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:24:25,523 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 04:24:25,523 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:24:25,524 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 04:24:25,525 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 04:24:26,504 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:24:26,518 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2836 conjuncts, 29 conjunts are in the unsatisfiable core
[2023-12-22 04:24:26,570 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:26:05,697 INFO  L134       CoverageAnalysis]: Checked inductivity of 1097 backedges. 1097 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 04:26:05,697 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:26:05,697 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:26:05,697 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150772930]
[2023-12-22 04:26:05,697 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150772930] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:26:05,697 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:26:05,698 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2023-12-22 04:26:05,698 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986161366]
[2023-12-22 04:26:05,698 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:26:05,699 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2023-12-22 04:26:05,699 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:26:05,701 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2023-12-22 04:26:05,701 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272
[2023-12-22 04:26:05,702 INFO  L87              Difference]: Start difference. First operand 49947 states and 53028 transitions. Second operand  has 17 states, 17 states have (on average 162.7058823529412) internal successors, (2766), 16 states have internal predecessors, (2766), 0 states have call successors, (0), 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 04:26:41,922 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:26:41,922 INFO  L93              Difference]: Finished difference Result 154206 states and 166483 transitions.
[2023-12-22 04:26:41,923 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. 
[2023-12-22 04:26:41,923 INFO  L78                 Accepts]: Start accepts. Automaton has  has 17 states, 17 states have (on average 162.7058823529412) internal successors, (2766), 16 states have internal predecessors, (2766), 0 states have call successors, (0), 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 2766
[2023-12-22 04:26:41,925 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:26:42,044 INFO  L225             Difference]: With dead ends: 154206
[2023-12-22 04:26:42,044 INFO  L226             Difference]: Without dead ends: 105886
[2023-12-22 04:26:42,065 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2791 GetRequests, 2750 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=476, Invalid=1330, Unknown=0, NotChecked=0, Total=1806
[2023-12-22 04:26:42,066 INFO  L413           NwaCegarLoop]: 468 mSDtfsCounter, 19641 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 37098 mSolverCounterSat, 3491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19641 SdHoareTripleChecker+Valid, 2404 SdHoareTripleChecker+Invalid, 40589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3491 IncrementalHoareTripleChecker+Valid, 37098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time
[2023-12-22 04:26:42,066 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [19641 Valid, 2404 Invalid, 40589 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3491 Valid, 37098 Invalid, 0 Unknown, 0 Unchecked, 32.3s Time]
[2023-12-22 04:26:42,140 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 105886 states.
[2023-12-22 04:26:43,232 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 105886 to 92206.
[2023-12-22 04:26:43,307 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 92206 states, 92205 states have (on average 1.0487500677837427) internal successors, (96700), 92205 states have internal predecessors, (96700), 0 states have call successors, (0), 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 04:26:43,498 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 92206 states to 92206 states and 96700 transitions.
[2023-12-22 04:26:43,498 INFO  L78                 Accepts]: Start accepts. Automaton has 92206 states and 96700 transitions. Word has length 2766
[2023-12-22 04:26:43,499 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:26:43,499 INFO  L495      AbstractCegarLoop]: Abstraction has 92206 states and 96700 transitions.
[2023-12-22 04:26:43,500 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 17 states have (on average 162.7058823529412) internal successors, (2766), 16 states have internal predecessors, (2766), 0 states have call successors, (0), 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 04:26:43,500 INFO  L276                IsEmpty]: Start isEmpty. Operand 92206 states and 96700 transitions.
[2023-12-22 04:26:43,734 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2938
[2023-12-22 04:26:43,735 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:26:43,736 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]
[2023-12-22 04:26:43,742 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 04:26:43,942 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 04:26:43,942 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:26:43,943 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:26:43,943 INFO  L85        PathProgramCache]: Analyzing trace with hash -68767197, now seen corresponding path program 1 times
[2023-12-22 04:26:43,958 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:26:43,958 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000941844]
[2023-12-22 04:26:43,959 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:26:43,959 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 04:26:43,959 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:26:43,975 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 04:26:44,024 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 04:26:44,845 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:26:44,858 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3080 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:26:44,880 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:26:45,117 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 04:26:45,118 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:26:45,118 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:26:45,118 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000941844]
[2023-12-22 04:26:45,118 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000941844] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:26:45,118 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:26:45,118 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:26:45,118 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338777090]
[2023-12-22 04:26:45,118 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:26:45,140 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:26:45,140 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:26:45,142 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:26:45,142 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:26:45,143 INFO  L87              Difference]: Start difference. First operand 92206 states and 96700 transitions. Second operand  has 3 states, 3 states have (on average 815.0) internal successors, (2445), 3 states have internal predecessors, (2445), 0 states have call successors, (0), 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 04:26:51,491 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:26:51,491 INFO  L93              Difference]: Finished difference Result 233744 states and 246193 transitions.
[2023-12-22 04:26:51,492 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:26:51,492 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 815.0) internal successors, (2445), 3 states have internal predecessors, (2445), 0 states have call successors, (0), 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 2937
[2023-12-22 04:26:51,493 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:26:51,669 INFO  L225             Difference]: With dead ends: 233744
[2023-12-22 04:26:51,669 INFO  L226             Difference]: Without dead ends: 143165
[2023-12-22 04:26:51,879 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2936 GetRequests, 2935 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 04:26:51,880 INFO  L413           NwaCegarLoop]: 3195 mSDtfsCounter, 1556 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 4798 mSolverCounterSat, 942 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 3435 SdHoareTripleChecker+Invalid, 5740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 942 IncrementalHoareTripleChecker+Valid, 4798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time
[2023-12-22 04:26:51,881 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1556 Valid, 3435 Invalid, 5740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [942 Valid, 4798 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time]
[2023-12-22 04:26:51,966 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 143165 states.
[2023-12-22 04:26:53,194 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 143165 to 139749.
[2023-12-22 04:26:53,270 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 139749 states, 139748 states have (on average 1.0372670807453417) internal successors, (144956), 139748 states have internal predecessors, (144956), 0 states have call successors, (0), 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 04:26:53,534 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 139749 states to 139749 states and 144956 transitions.
[2023-12-22 04:26:53,534 INFO  L78                 Accepts]: Start accepts. Automaton has 139749 states and 144956 transitions. Word has length 2937
[2023-12-22 04:26:53,535 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:26:53,535 INFO  L495      AbstractCegarLoop]: Abstraction has 139749 states and 144956 transitions.
[2023-12-22 04:26:53,536 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 815.0) internal successors, (2445), 3 states have internal predecessors, (2445), 0 states have call successors, (0), 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 04:26:53,536 INFO  L276                IsEmpty]: Start isEmpty. Operand 139749 states and 144956 transitions.
[2023-12-22 04:26:53,821 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3130
[2023-12-22 04:26:53,821 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:26:53,822 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, 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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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2023-12-22 04:26:53,829 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 04:26:54,027 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 04:26:54,027 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:26:54,028 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:26:54,028 INFO  L85        PathProgramCache]: Analyzing trace with hash -1345571398, now seen corresponding path program 1 times
[2023-12-22 04:26:54,042 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:26:54,042 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824938084]
[2023-12-22 04:26:54,042 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:26:54,042 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 04:26:54,042 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:26:54,043 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 04:26:54,045 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 04:26:54,888 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:26:54,901 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3261 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:26:54,918 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:26:55,149 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 04:26:55,149 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:26:55,149 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:26:55,149 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824938084]
[2023-12-22 04:26:55,149 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [824938084] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:26:55,149 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:26:55,149 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:26:55,150 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871346865]
[2023-12-22 04:26:55,150 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:26:55,151 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:26:55,151 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:26:55,153 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:26:55,153 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:26:55,153 INFO  L87              Difference]: Start difference. First operand 139749 states and 144956 transitions. Second operand  has 3 states, 3 states have (on average 918.3333333333334) internal successors, (2755), 3 states have internal predecessors, (2755), 0 states have call successors, (0), 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 04:27:01,849 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:27:01,849 INFO  L93              Difference]: Finished difference Result 306748 states and 319715 transitions.
[2023-12-22 04:27:01,850 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:27:01,850 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 918.3333333333334) internal successors, (2755), 3 states have internal predecessors, (2755), 0 states have call successors, (0), 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 3129
[2023-12-22 04:27:01,851 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:27:02,045 INFO  L225             Difference]: With dead ends: 306748
[2023-12-22 04:27:02,045 INFO  L226             Difference]: Without dead ends: 168626
[2023-12-22 04:27:02,094 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3128 GetRequests, 3127 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 04:27:02,094 INFO  L413           NwaCegarLoop]: 3195 mSDtfsCounter, 1660 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 4681 mSolverCounterSat, 986 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 3406 SdHoareTripleChecker+Invalid, 5667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 986 IncrementalHoareTripleChecker+Valid, 4681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time
[2023-12-22 04:27:02,094 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1660 Valid, 3406 Invalid, 5667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [986 Valid, 4681 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time]
[2023-12-22 04:27:02,338 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 168626 states.
[2023-12-22 04:27:03,532 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 168626 to 156733.
[2023-12-22 04:27:03,624 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 156733 states, 156732 states have (on average 1.0341602225454916) internal successors, (162086), 156732 states have internal predecessors, (162086), 0 states have call successors, (0), 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 04:27:03,927 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 156733 states to 156733 states and 162086 transitions.
[2023-12-22 04:27:03,927 INFO  L78                 Accepts]: Start accepts. Automaton has 156733 states and 162086 transitions. Word has length 3129
[2023-12-22 04:27:03,928 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:27:03,928 INFO  L495      AbstractCegarLoop]: Abstraction has 156733 states and 162086 transitions.
[2023-12-22 04:27:03,929 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 918.3333333333334) internal successors, (2755), 3 states have internal predecessors, (2755), 0 states have call successors, (0), 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 04:27:03,929 INFO  L276                IsEmpty]: Start isEmpty. Operand 156733 states and 162086 transitions.
[2023-12-22 04:27:04,282 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3133
[2023-12-22 04:27:04,282 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:27:04,283 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, 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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]
[2023-12-22 04:27:04,291 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 04:27:04,488 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 04:27:04,489 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:27:04,489 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:27:04,490 INFO  L85        PathProgramCache]: Analyzing trace with hash 1413447475, now seen corresponding path program 1 times
[2023-12-22 04:27:04,505 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:27:04,506 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300235915]
[2023-12-22 04:27:04,506 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:27:04,506 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 04:27:04,506 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:27:04,507 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 04:27:04,508 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 04:27:05,373 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:27:05,388 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3233 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:27:05,404 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:27:06,540 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 04:27:06,540 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:27:06,540 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:27:06,540 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300235915]
[2023-12-22 04:27:06,548 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300235915] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:27:06,548 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:27:06,548 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 04:27:06,548 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490170765]
[2023-12-22 04:27:06,548 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:27:06,550 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:27:06,550 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:27:06,552 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:27:06,552 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:27:06,552 INFO  L87              Difference]: Start difference. First operand 156733 states and 162086 transitions. Second operand  has 3 states, 3 states have (on average 923.3333333333334) internal successors, (2770), 2 states have internal predecessors, (2770), 0 states have call successors, (0), 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 04:27:12,855 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:27:12,855 INFO  L93              Difference]: Finished difference Result 355982 states and 369082 transitions.
[2023-12-22 04:27:12,856 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:27:12,857 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 923.3333333333334) internal successors, (2770), 2 states have internal predecessors, (2770), 0 states have call successors, (0), 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 3132
[2023-12-22 04:27:12,858 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:27:13,140 INFO  L225             Difference]: With dead ends: 355982
[2023-12-22 04:27:13,141 INFO  L226             Difference]: Without dead ends: 187267
[2023-12-22 04:27:13,207 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3131 GetRequests, 3130 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 04:27:13,208 INFO  L413           NwaCegarLoop]: 1041 mSDtfsCounter, 1247 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 4226 mSolverCounterSat, 1250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 5476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1250 IncrementalHoareTripleChecker+Valid, 4226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time
[2023-12-22 04:27:13,211 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1247 Valid, 1157 Invalid, 5476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1250 Valid, 4226 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time]
[2023-12-22 04:27:13,362 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 187267 states.
[2023-12-22 04:27:14,912 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 187267 to 175377.
[2023-12-22 04:27:14,996 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 175377 states, 175376 states have (on average 1.0300155095338017) internal successors, (180640), 175376 states have internal predecessors, (180640), 0 states have call successors, (0), 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 04:27:15,177 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 175377 states to 175377 states and 180640 transitions.
[2023-12-22 04:27:15,177 INFO  L78                 Accepts]: Start accepts. Automaton has 175377 states and 180640 transitions. Word has length 3132
[2023-12-22 04:27:15,179 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:27:15,185 INFO  L495      AbstractCegarLoop]: Abstraction has 175377 states and 180640 transitions.
[2023-12-22 04:27:15,186 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 923.3333333333334) internal successors, (2770), 2 states have internal predecessors, (2770), 0 states have call successors, (0), 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 04:27:15,186 INFO  L276                IsEmpty]: Start isEmpty. Operand 175377 states and 180640 transitions.
[2023-12-22 04:27:15,563 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3181
[2023-12-22 04:27:15,563 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:27:15,564 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, 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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]
[2023-12-22 04:27:15,571 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 04:27:15,769 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 04:27:15,769 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:27:15,770 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:27:15,770 INFO  L85        PathProgramCache]: Analyzing trace with hash 1682752120, now seen corresponding path program 1 times
[2023-12-22 04:27:15,783 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:27:15,783 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100462627]
[2023-12-22 04:27:15,784 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:27:15,784 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 04:27:15,784 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:27:15,785 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 04:27:15,785 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 04:27:16,822 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:27:16,839 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3351 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:27:16,856 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:27:17,527 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 04:27:17,527 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:27:17,527 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:27:17,527 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100462627]
[2023-12-22 04:27:17,527 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100462627] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:27:17,527 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:27:17,528 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:27:17,528 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664575182]
[2023-12-22 04:27:17,528 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:27:17,529 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:27:17,529 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:27:17,531 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:27:17,531 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:27:17,531 INFO  L87              Difference]: Start difference. First operand 175377 states and 180640 transitions. Second operand  has 3 states, 3 states have (on average 847.3333333333334) internal successors, (2542), 3 states have internal predecessors, (2542), 0 states have call successors, (0), 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 04:27:22,833 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:27:22,833 INFO  L93              Difference]: Finished difference Result 394965 states and 407598 transitions.
[2023-12-22 04:27:22,834 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:27:22,834 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 847.3333333333334) internal successors, (2542), 3 states have internal predecessors, (2542), 0 states have call successors, (0), 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 3180
[2023-12-22 04:27:22,835 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:27:23,128 INFO  L225             Difference]: With dead ends: 394965
[2023-12-22 04:27:23,128 INFO  L226             Difference]: Without dead ends: 221215
[2023-12-22 04:27:23,364 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3179 GetRequests, 3178 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 04:27:23,365 INFO  L413           NwaCegarLoop]: 2975 mSDtfsCounter, 1235 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 4210 mSolverCounterSat, 774 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 3269 SdHoareTripleChecker+Invalid, 4984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 774 IncrementalHoareTripleChecker+Valid, 4210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2023-12-22 04:27:23,365 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1235 Valid, 3269 Invalid, 4984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [774 Valid, 4210 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2023-12-22 04:27:23,502 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 221215 states.
[2023-12-22 04:27:25,511 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 221215 to 219514.
[2023-12-22 04:27:25,621 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 219514 states, 219513 states have (on average 1.027529121282111) internal successors, (225556), 219513 states have internal predecessors, (225556), 0 states have call successors, (0), 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 04:27:26,233 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 219514 states to 219514 states and 225556 transitions.
[2023-12-22 04:27:26,233 INFO  L78                 Accepts]: Start accepts. Automaton has 219514 states and 225556 transitions. Word has length 3180
[2023-12-22 04:27:26,234 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:27:26,234 INFO  L495      AbstractCegarLoop]: Abstraction has 219514 states and 225556 transitions.
[2023-12-22 04:27:26,234 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 847.3333333333334) internal successors, (2542), 3 states have internal predecessors, (2542), 0 states have call successors, (0), 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 04:27:26,234 INFO  L276                IsEmpty]: Start isEmpty. Operand 219514 states and 225556 transitions.
[2023-12-22 04:27:26,444 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3324
[2023-12-22 04:27:26,444 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:27:26,446 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, 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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]
[2023-12-22 04:27:26,452 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 (17)] Ended with exit code 0
[2023-12-22 04:27:26,655 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 04:27:26,655 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:27:26,657 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:27:26,657 INFO  L85        PathProgramCache]: Analyzing trace with hash -1735828897, now seen corresponding path program 1 times
[2023-12-22 04:27:26,673 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:27:26,673 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441661032]
[2023-12-22 04:27:26,673 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:27:26,674 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 04:27:26,674 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:27:26,689 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 04:27:26,691 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 04:27:27,889 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:27:27,903 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3495 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:27:27,920 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:27:28,622 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 04:27:28,622 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:27:28,622 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:27:28,622 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [441661032]
[2023-12-22 04:27:28,623 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [441661032] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:27:28,623 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:27:28,623 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:27:28,623 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095030085]
[2023-12-22 04:27:28,623 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:27:28,625 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:27:28,625 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:27:28,627 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:27:28,627 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:27:28,627 INFO  L87              Difference]: Start difference. First operand 219514 states and 225556 transitions. Second operand  has 3 states, 3 states have (on average 847.3333333333334) internal successors, (2542), 3 states have internal predecessors, (2542), 0 states have call successors, (0), 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 04:27:35,184 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:27:35,184 INFO  L93              Difference]: Finished difference Result 505336 states and 520408 transitions.
[2023-12-22 04:27:35,185 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:27:35,185 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 847.3333333333334) internal successors, (2542), 3 states have internal predecessors, (2542), 0 states have call successors, (0), 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 3323
[2023-12-22 04:27:35,186 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:27:35,517 INFO  L225             Difference]: With dead ends: 505336
[2023-12-22 04:27:35,518 INFO  L226             Difference]: Without dead ends: 282344
[2023-12-22 04:27:35,597 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3322 GetRequests, 3321 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 04:27:35,597 INFO  L413           NwaCegarLoop]: 1389 mSDtfsCounter, 1164 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 4571 mSolverCounterSat, 955 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 5526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 955 IncrementalHoareTripleChecker+Valid, 4571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time
[2023-12-22 04:27:35,597 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 1601 Invalid, 5526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [955 Valid, 4571 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time]
[2023-12-22 04:27:35,797 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 282344 states.
[2023-12-22 04:27:38,065 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 282344 to 275539.
[2023-12-22 04:27:38,208 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 275539 states, 275538 states have (on average 1.0238043391474134) internal successors, (282097), 275538 states have internal predecessors, (282097), 0 states have call successors, (0), 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 04:27:38,752 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 275539 states to 275539 states and 282097 transitions.
[2023-12-22 04:27:38,752 INFO  L78                 Accepts]: Start accepts. Automaton has 275539 states and 282097 transitions. Word has length 3323
[2023-12-22 04:27:38,753 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:27:38,753 INFO  L495      AbstractCegarLoop]: Abstraction has 275539 states and 282097 transitions.
[2023-12-22 04:27:38,754 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 847.3333333333334) internal successors, (2542), 3 states have internal predecessors, (2542), 0 states have call successors, (0), 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 04:27:38,754 INFO  L276                IsEmpty]: Start isEmpty. Operand 275539 states and 282097 transitions.
[2023-12-22 04:27:39,345 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3585
[2023-12-22 04:27:39,345 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:27:39,346 INFO  L195           NwaCegarLoop]: trace histogram [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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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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]
[2023-12-22 04:27:39,353 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 (18)] Forceful destruction successful, exit code 0
[2023-12-22 04:27:39,553 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 04:27:39,553 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:27:39,554 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:27:39,554 INFO  L85        PathProgramCache]: Analyzing trace with hash 1024123186, now seen corresponding path program 1 times
[2023-12-22 04:27:39,571 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:27:39,571 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268490668]
[2023-12-22 04:27:39,572 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:27:39,572 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 04:27:39,572 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:27:39,573 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 04:27:39,574 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 04:27:40,540 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:27:40,556 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3730 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:27:40,575 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:27:40,694 INFO  L134       CoverageAnalysis]: Checked inductivity of 3625 backedges. 1998 proven. 0 refuted. 0 times theorem prover too weak. 1627 trivial. 0 not checked.
[2023-12-22 04:27:40,694 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:27:40,694 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:27:40,695 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268490668]
[2023-12-22 04:27:40,695 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268490668] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:27:40,695 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:27:40,695 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:27:40,697 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578796617]
[2023-12-22 04:27:40,697 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:27:40,699 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:27:40,699 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:27:40,701 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:27:40,701 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:27:40,702 INFO  L87              Difference]: Start difference. First operand 275539 states and 282097 transitions. Second operand  has 3 states, 3 states have (on average 930.3333333333334) internal successors, (2791), 3 states have internal predecessors, (2791), 0 states have call successors, (0), 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 04:27:46,859 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:27:46,859 INFO  L93              Difference]: Finished difference Result 576436 states and 590460 transitions.
[2023-12-22 04:27:46,859 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:27:46,859 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 930.3333333333334) internal successors, (2791), 3 states have internal predecessors, (2791), 0 states have call successors, (0), 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 3584
[2023-12-22 04:27:46,860 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:27:47,190 INFO  L225             Difference]: With dead ends: 576436
[2023-12-22 04:27:47,190 INFO  L226             Difference]: Without dead ends: 297429
[2023-12-22 04:27:47,498 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3583 GetRequests, 3582 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 04:27:47,498 INFO  L413           NwaCegarLoop]: 3051 mSDtfsCounter, 1692 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 4601 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 3259 SdHoareTripleChecker+Invalid, 5121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 4601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2023-12-22 04:27:47,498 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 3259 Invalid, 5121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 4601 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time]
[2023-12-22 04:27:47,712 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 297429 states.
[2023-12-22 04:27:50,268 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 297429 to 297421.
[2023-12-22 04:27:50,455 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 297421 states, 297420 states have (on average 1.0222883464461032) internal successors, (304049), 297420 states have internal predecessors, (304049), 0 states have call successors, (0), 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 04:27:50,829 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 297421 states to 297421 states and 304049 transitions.
[2023-12-22 04:27:50,831 INFO  L78                 Accepts]: Start accepts. Automaton has 297421 states and 304049 transitions. Word has length 3584
[2023-12-22 04:27:50,832 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:27:50,832 INFO  L495      AbstractCegarLoop]: Abstraction has 297421 states and 304049 transitions.
[2023-12-22 04:27:50,832 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 930.3333333333334) internal successors, (2791), 3 states have internal predecessors, (2791), 0 states have call successors, (0), 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 04:27:50,832 INFO  L276                IsEmpty]: Start isEmpty. Operand 297421 states and 304049 transitions.
[2023-12-22 04:27:51,530 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3881
[2023-12-22 04:27:51,530 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:27:51,531 INFO  L195           NwaCegarLoop]: trace histogram [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, 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, 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, 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, 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, 4, 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, 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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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:51,538 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 (19)] Ended with exit code 0
[2023-12-22 04:27:51,740 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 04:27:51,740 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:27:51,740 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:27:51,741 INFO  L85        PathProgramCache]: Analyzing trace with hash 2080466305, now seen corresponding path program 1 times
[2023-12-22 04:27:51,759 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:27:51,759 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910878737]
[2023-12-22 04:27:51,760 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:27:51,760 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 04:27:51,760 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:27:51,761 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 04:27:51,798 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 04:27:53,050 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:27:53,067 INFO  L262         TraceCheckSpWp]: Trace formula consists of 4042 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:27:53,110 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:27:53,309 INFO  L134       CoverageAnalysis]: Checked inductivity of 5689 backedges. 3614 proven. 0 refuted. 0 times theorem prover too weak. 2075 trivial. 0 not checked.
[2023-12-22 04:27:53,309 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:27:53,310 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:27:53,310 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910878737]
[2023-12-22 04:27:53,310 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [910878737] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:27:53,310 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:27:53,310 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:27:53,310 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043973410]
[2023-12-22 04:27:53,310 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:27:53,312 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:27:53,312 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:27:53,314 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:27:53,314 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:27:53,314 INFO  L87              Difference]: Start difference. First operand 297421 states and 304049 transitions. Second operand  has 3 states, 3 states have (on average 957.6666666666666) internal successors, (2873), 3 states have internal predecessors, (2873), 0 states have call successors, (0), 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 04:27:59,767 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:27:59,767 INFO  L93              Difference]: Finished difference Result 600003 states and 613275 transitions.
[2023-12-22 04:27:59,767 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:27:59,768 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 957.6666666666666) internal successors, (2873), 3 states have internal predecessors, (2873), 0 states have call successors, (0), 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 3880
[2023-12-22 04:27:59,768 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:28:00,264 INFO  L225             Difference]: With dead ends: 600003
[2023-12-22 04:28:00,264 INFO  L226             Difference]: Without dead ends: 280385
[2023-12-22 04:28:00,444 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3879 GetRequests, 3878 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 04:28:00,690 INFO  L413           NwaCegarLoop]: 2736 mSDtfsCounter, 1779 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 4385 mSolverCounterSat, 823 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 2928 SdHoareTripleChecker+Invalid, 5208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 823 IncrementalHoareTripleChecker+Valid, 4385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2023-12-22 04:28:00,691 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1779 Valid, 2928 Invalid, 5208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [823 Valid, 4385 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time]
[2023-12-22 04:28:00,872 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 280385 states.
[2023-12-22 04:28:03,092 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 280385 to 273587.
[2023-12-22 04:28:03,214 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 273587 states, 273586 states have (on average 1.013337670787248) internal successors, (277235), 273586 states have internal predecessors, (277235), 0 states have call successors, (0), 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 04:28:03,526 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 273587 states to 273587 states and 277235 transitions.
[2023-12-22 04:28:03,526 INFO  L78                 Accepts]: Start accepts. Automaton has 273587 states and 277235 transitions. Word has length 3880
[2023-12-22 04:28:03,527 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:28:03,527 INFO  L495      AbstractCegarLoop]: Abstraction has 273587 states and 277235 transitions.
[2023-12-22 04:28:03,527 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 957.6666666666666) internal successors, (2873), 3 states have internal predecessors, (2873), 0 states have call successors, (0), 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 04:28:03,527 INFO  L276                IsEmpty]: Start isEmpty. Operand 273587 states and 277235 transitions.
[2023-12-22 04:28:04,107 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3961
[2023-12-22 04:28:04,107 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:28:04,108 INFO  L195           NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 10, 10, 10, 10, 10, 10, 10, 10, 9, 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, 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, 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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]
[2023-12-22 04:28:04,117 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 04:28:04,315 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 04:28:04,315 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:28:04,315 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:28:04,316 INFO  L85        PathProgramCache]: Analyzing trace with hash 1544039970, now seen corresponding path program 1 times
[2023-12-22 04:28:04,332 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:28:04,332 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851712888]
[2023-12-22 04:28:04,333 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:28:04,333 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 04:28:04,333 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:28:04,334 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 04:28:04,335 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 04:28:05,558 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:28:05,577 INFO  L262         TraceCheckSpWp]: Trace formula consists of 4166 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:28:05,596 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:28:06,124 INFO  L134       CoverageAnalysis]: Checked inductivity of 8443 backedges. 5588 proven. 0 refuted. 0 times theorem prover too weak. 2855 trivial. 0 not checked.
[2023-12-22 04:28:06,124 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:28:06,124 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:28:06,125 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851712888]
[2023-12-22 04:28:06,125 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1851712888] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:28:06,125 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:28:06,125 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:28:06,125 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010951254]
[2023-12-22 04:28:06,125 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:28:06,127 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:28:06,127 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:28:06,129 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:28:06,129 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:28:06,129 INFO  L87              Difference]: Start difference. First operand 273587 states and 277235 transitions. Second operand  has 3 states, 3 states have (on average 831.6666666666666) internal successors, (2495), 3 states have internal predecessors, (2495), 0 states have call successors, (0), 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 04:28:12,187 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:28:12,188 INFO  L93              Difference]: Finished difference Result 574424 states and 581934 transitions.
[2023-12-22 04:28:12,188 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:28:12,188 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 831.6666666666666) internal successors, (2495), 3 states have internal predecessors, (2495), 0 states have call successors, (0), 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 3960
[2023-12-22 04:28:12,189 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:28:12,833 INFO  L225             Difference]: With dead ends: 574424
[2023-12-22 04:28:12,833 INFO  L226             Difference]: Without dead ends: 302464
[2023-12-22 04:28:12,883 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3959 GetRequests, 3958 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 04:28:12,883 INFO  L413           NwaCegarLoop]: 2878 mSDtfsCounter, 1531 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 4416 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 3062 SdHoareTripleChecker+Invalid, 4562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 4416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time
[2023-12-22 04:28:12,883 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 3062 Invalid, 4562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 4416 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time]
[2023-12-22 04:28:13,108 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 302464 states.
[2023-12-22 04:28:15,356 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 302464 to 299060.
[2023-12-22 04:28:15,527 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 299060 states, 299059 states have (on average 1.012368796792606) internal successors, (302758), 299059 states have internal predecessors, (302758), 0 states have call successors, (0), 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 04:28:16,164 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 299060 states to 299060 states and 302758 transitions.
[2023-12-22 04:28:16,164 INFO  L78                 Accepts]: Start accepts. Automaton has 299060 states and 302758 transitions. Word has length 3960
[2023-12-22 04:28:16,165 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:28:16,165 INFO  L495      AbstractCegarLoop]: Abstraction has 299060 states and 302758 transitions.
[2023-12-22 04:28:16,165 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 831.6666666666666) internal successors, (2495), 3 states have internal predecessors, (2495), 0 states have call successors, (0), 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 04:28:16,166 INFO  L276                IsEmpty]: Start isEmpty. Operand 299060 states and 302758 transitions.
[2023-12-22 04:28:16,793 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3972
[2023-12-22 04:28:16,793 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:28:16,794 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, 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, 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, 8, 8, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:28:16,800 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 04:28:17,000 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 04:28:17,001 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:28:17,001 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:28:17,001 INFO  L85        PathProgramCache]: Analyzing trace with hash -429270800, now seen corresponding path program 1 times
[2023-12-22 04:28:17,019 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:28:17,019 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770703613]
[2023-12-22 04:28:17,019 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:28:17,019 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 04:28:17,019 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:28:17,020 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 04:28:17,022 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 04:28:18,102 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:28:18,122 INFO  L262         TraceCheckSpWp]: Trace formula consists of 4151 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:28:18,143 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:28:18,314 INFO  L134       CoverageAnalysis]: Checked inductivity of 6171 backedges. 4184 proven. 0 refuted. 0 times theorem prover too weak. 1987 trivial. 0 not checked.
[2023-12-22 04:28:18,314 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:28:18,314 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:28:18,314 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770703613]
[2023-12-22 04:28:18,314 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [770703613] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:28:18,314 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:28:18,315 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:28:18,315 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684480245]
[2023-12-22 04:28:18,315 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:28:18,317 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:28:18,317 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:28:18,319 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:28:18,319 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:28:18,319 INFO  L87              Difference]: Start difference. First operand 299060 states and 302758 transitions. Second operand  has 3 states, 3 states have (on average 889.6666666666666) internal successors, (2669), 3 states have internal predecessors, (2669), 0 states have call successors, (0), 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 04:28:25,482 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:28:25,482 INFO  L93              Difference]: Finished difference Result 657630 states and 666858 transitions.
[2023-12-22 04:28:25,483 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:28:25,483 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 889.6666666666666) internal successors, (2669), 3 states have internal predecessors, (2669), 0 states have call successors, (0), 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 3971
[2023-12-22 04:28:25,484 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:28:25,965 INFO  L225             Difference]: With dead ends: 657630
[2023-12-22 04:28:25,965 INFO  L226             Difference]: Without dead ends: 353403
[2023-12-22 04:28:26,098 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3970 GetRequests, 3969 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 04:28:26,099 INFO  L413           NwaCegarLoop]: 2750 mSDtfsCounter, 1693 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 4408 mSolverCounterSat, 769 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1693 SdHoareTripleChecker+Valid, 2917 SdHoareTripleChecker+Invalid, 5177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 769 IncrementalHoareTripleChecker+Valid, 4408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time
[2023-12-22 04:28:26,099 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1693 Valid, 2917 Invalid, 5177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [769 Valid, 4408 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time]
[2023-12-22 04:28:26,441 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 353403 states.
[2023-12-22 04:28:29,179 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 353403 to 344892.
[2023-12-22 04:28:29,343 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 344892 states, 344891 states have (on average 1.0111136561986251) internal successors, (348724), 344891 states have internal predecessors, (348724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)