/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_label44.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 04:43:02,079 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 04:43:02,138 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 04:43:02,141 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 04:43:02,141 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 04:43:02,164 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 04:43:02,164 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 04:43:02,165 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 04:43:02,165 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 04:43:02,168 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 04:43:02,168 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 04:43:02,169 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 04:43:02,169 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 04:43:02,170 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 04:43:02,170 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 04:43:02,170 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 04:43:02,170 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 04:43:02,171 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 04:43:02,171 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 04:43:02,171 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 04:43:02,171 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 04:43:02,171 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 04:43:02,171 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 04:43:02,171 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 04:43:02,172 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 04:43:02,172 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 04:43:02,172 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 04:43:02,172 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 04:43:02,172 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 04:43:02,172 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 04:43:02,173 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 04:43:02,173 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 04:43:02,173 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 04:43:02,173 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 04:43:02,173 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 04:43:02,173 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 04:43:02,174 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 04:43:02,174 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 04:43:02,174 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 04:43:02,174 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 04:43:02,174 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 04:43:02,174 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 04:43:02,174 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 04:43:02,174 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 04:43:02,175 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 04:43:02,175 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 04:43:02,175 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 04:43:02,350 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 04:43:02,364 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 04:43:02,366 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 04:43:02,367 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 04:43:02,367 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 04:43:02,369 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label44.c
[2023-12-22 04:43:03,363 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 04:43:03,820 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 04:43:03,820 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label44.c
[2023-12-22 04:43:03,863 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26cb1f974/010f33df18084891826a44eb61ecde26/FLAG395f3a257
[2023-12-22 04:43:03,914 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26cb1f974/010f33df18084891826a44eb61ecde26
[2023-12-22 04:43:03,916 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 04:43:03,917 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 04:43:03,919 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 04:43:03,919 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 04:43:03,922 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 04:43:03,923 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:43:03" (1/1) ...
[2023-12-22 04:43:03,923 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eea03e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:43:03, skipping insertion in model container
[2023-12-22 04:43:03,923 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:43:03" (1/1) ...
[2023-12-22 04:43:04,101 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 04:43:05,261 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_label44.c[376997,377010]
[2023-12-22 04:43:05,280 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 04:43:05,289 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 04:43:05,863 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_label44.c[376997,377010]
[2023-12-22 04:43:05,871 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 04:43:05,920 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 04:43:05,920 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:43:05 WrapperNode
[2023-12-22 04:43:05,920 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 04:43:05,921 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 04:43:05,922 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 04:43:05,922 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 04:43:05,927 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:43:05" (1/1) ...
[2023-12-22 04:43:06,004 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:43:05" (1/1) ...
[2023-12-22 04:43:06,274 INFO  L138                Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12345
[2023-12-22 04:43:06,275 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 04:43:06,275 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 04:43:06,276 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 04:43:06,276 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 04:43:06,285 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:43:05" (1/1) ...
[2023-12-22 04:43:06,286 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:43:05" (1/1) ...
[2023-12-22 04:43:06,328 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:43:05" (1/1) ...
[2023-12-22 04:43:06,421 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 04:43:06,421 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:43:05" (1/1) ...
[2023-12-22 04:43:06,422 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:43:05" (1/1) ...
[2023-12-22 04:43:06,525 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:43:05" (1/1) ...
[2023-12-22 04:43:06,655 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:43:05" (1/1) ...
[2023-12-22 04:43:06,688 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:43:05" (1/1) ...
[2023-12-22 04:43:06,705 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:43:05" (1/1) ...
[2023-12-22 04:43:06,751 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 04:43:06,753 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 04:43:06,753 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 04:43:06,753 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 04:43:06,754 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:43:05" (1/1) ...
[2023-12-22 04:43:06,758 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 04:43:06,766 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 04:43:06,776 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 04:43:06,793 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 04:43:06,800 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 04:43:06,800 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 04:43:06,800 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 04:43:06,800 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 04:43:06,861 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 04:43:06,863 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 04:43:13,999 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 04:43:14,062 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 04:43:14,062 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 04:43:14,062 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:43:14 BoogieIcfgContainer
[2023-12-22 04:43:14,062 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 04:43:14,064 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 04:43:14,064 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 04:43:14,066 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 04:43:14,066 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:43:03" (1/3) ...
[2023-12-22 04:43:14,067 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3661b9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:43:14, skipping insertion in model container
[2023-12-22 04:43:14,067 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:43:05" (2/3) ...
[2023-12-22 04:43:14,067 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3661b9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:43:14, skipping insertion in model container
[2023-12-22 04:43:14,067 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:43:14" (3/3) ...
[2023-12-22 04:43:14,068 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem05_label44.c
[2023-12-22 04:43:14,079 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 04:43:14,079 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 04:43:14,140 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 04:43:14,144 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;@123dcc7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 04:43:14,144 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 04:43:14,158 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 04:43:14,227 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1653
[2023-12-22 04:43:14,227 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:43:14,229 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]
[2023-12-22 04:43:14,230 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:43:14,235 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:43:14,235 INFO  L85        PathProgramCache]: Analyzing trace with hash -754558394, now seen corresponding path program 1 times
[2023-12-22 04:43:14,266 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:43:14,267 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876161997]
[2023-12-22 04:43:14,267 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:43:14,267 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:43:14,267 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:43:14,269 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 04:43:14,305 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 04:43:14,824 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:43:14,831 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1701 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 04:43:14,855 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:43:14,942 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 04:43:14,943 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:43:14,943 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:43:14,943 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876161997]
[2023-12-22 04:43:14,944 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [876161997] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:43:14,944 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:43:14,944 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 04:43:14,945 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098348066]
[2023-12-22 04:43:14,945 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:43:14,951 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 04:43:14,952 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:43:14,978 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 04:43:14,979 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 04:43:14,984 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 826.0) internal successors, (1652), 2 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:15,067 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:43:15,068 INFO  L93              Difference]: Finished difference Result 4245 states and 8043 transitions.
[2023-12-22 04:43:15,069 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 04:43:15,071 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 826.0) internal successors, (1652), 2 states have internal predecessors, (1652), 0 states have call successors, (0), 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 1652
[2023-12-22 04:43:15,075 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:43:15,115 INFO  L225             Difference]: With dead ends: 4245
[2023-12-22 04:43:15,115 INFO  L226             Difference]: Without dead ends: 2121
[2023-12-22 04:43:15,124 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1651 GetRequests, 1651 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 04:43:15,126 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 04:43:15,127 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 04:43:15,146 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2121 states.
[2023-12-22 04:43:15,205 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 2121.
[2023-12-22 04:43:15,209 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 04:43:15,214 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 3957 transitions.
[2023-12-22 04:43:15,215 INFO  L78                 Accepts]: Start accepts. Automaton has 2121 states and 3957 transitions. Word has length 1652
[2023-12-22 04:43:15,219 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:43:15,219 INFO  L495      AbstractCegarLoop]: Abstraction has 2121 states and 3957 transitions.
[2023-12-22 04:43:15,220 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 826.0) internal successors, (1652), 2 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:15,220 INFO  L276                IsEmpty]: Start isEmpty. Operand 2121 states and 3957 transitions.
[2023-12-22 04:43:15,316 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1653
[2023-12-22 04:43:15,317 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:43:15,317 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]
[2023-12-22 04:43:15,325 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 04:43:15,521 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 04:43:15,522 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:43:15,523 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:43:15,524 INFO  L85        PathProgramCache]: Analyzing trace with hash 826941683, now seen corresponding path program 1 times
[2023-12-22 04:43:15,536 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:43:15,536 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1716918644]
[2023-12-22 04:43:15,537 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:43:15,537 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:43:15,538 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:43:15,539 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 04:43:15,543 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 04:43:16,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:43:16,049 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1701 conjuncts, 31 conjunts are in the unsatisfiable core
[2023-12-22 04:43:16,072 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:43:58,539 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 04:43:58,539 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:43:58,539 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:43:58,543 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1716918644]
[2023-12-22 04:43:58,543 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1716918644] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:43:58,543 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:43:58,544 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2023-12-22 04:43:58,544 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579969335]
[2023-12-22 04:43:58,544 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:43:58,547 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:43:58,547 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:43:58,548 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:43:58,549 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:43:58,549 INFO  L87              Difference]: Start difference. First operand 2121 states and 3957 transitions. Second operand  has 16 states, 16 states have (on average 103.25) internal successors, (1652), 15 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:19,947 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:44:19,947 INFO  L93              Difference]: Finished difference Result 5867 states and 11163 transitions.
[2023-12-22 04:44:19,948 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2023-12-22 04:44:19,949 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 103.25) internal successors, (1652), 15 states have internal predecessors, (1652), 0 states have call successors, (0), 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 1652
[2023-12-22 04:44:19,951 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:44:19,961 INFO  L225             Difference]: With dead ends: 5867
[2023-12-22 04:44:19,961 INFO  L226             Difference]: Without dead ends: 3747
[2023-12-22 04:44:19,963 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1662 GetRequests, 1637 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 04:44:19,964 INFO  L413           NwaCegarLoop]: 2327 mSDtfsCounter, 7576 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 34632 mSolverCounterSat, 1618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7576 SdHoareTripleChecker+Valid, 4101 SdHoareTripleChecker+Invalid, 36250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1618 IncrementalHoareTripleChecker+Valid, 34632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time
[2023-12-22 04:44:19,965 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [7576 Valid, 4101 Invalid, 36250 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1618 Valid, 34632 Invalid, 0 Unknown, 0 Unchecked, 20.4s Time]
[2023-12-22 04:44:19,970 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3747 states.
[2023-12-22 04:44:20,001 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3747 to 3747.
[2023-12-22 04:44:20,005 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 04:44:20,011 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3747 states to 3747 states and 5588 transitions.
[2023-12-22 04:44:20,011 INFO  L78                 Accepts]: Start accepts. Automaton has 3747 states and 5588 transitions. Word has length 1652
[2023-12-22 04:44:20,013 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:44:20,013 INFO  L495      AbstractCegarLoop]: Abstraction has 3747 states and 5588 transitions.
[2023-12-22 04:44:20,014 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 103.25) internal successors, (1652), 15 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:20,014 INFO  L276                IsEmpty]: Start isEmpty. Operand 3747 states and 5588 transitions.
[2023-12-22 04:44:20,035 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1762
[2023-12-22 04:44:20,036 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:44:20,037 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]
[2023-12-22 04:44:20,046 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 04:44:20,244 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 04:44:20,244 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:44:20,245 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:44:20,245 INFO  L85        PathProgramCache]: Analyzing trace with hash 665697965, now seen corresponding path program 1 times
[2023-12-22 04:44:20,253 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:44:20,253 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1438275777]
[2023-12-22 04:44:20,253 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:44:20,254 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:44:20,254 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:44:20,255 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 04:44:20,258 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 04:44:20,744 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:44:20,751 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1823 conjuncts, 29 conjunts are in the unsatisfiable core
[2023-12-22 04:44:20,770 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:45:57,199 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 04:45:57,199 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:45:57,199 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:45:57,200 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1438275777]
[2023-12-22 04:45:57,200 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1438275777] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:45:57,200 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:45:57,200 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2023-12-22 04:45:57,200 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682529909]
[2023-12-22 04:45:57,200 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:45:57,201 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:45:57,201 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:45:57,203 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:45:57,203 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:45:57,204 INFO  L87              Difference]: Start difference. First operand 3747 states and 5588 transitions. Second operand  has 16 states, 16 states have (on average 110.0625) internal successors, (1761), 16 states have internal predecessors, (1761), 0 states have call successors, (0), 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 04:46:41,371 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:46:41,371 INFO  L93              Difference]: Finished difference Result 10878 states and 19353 transitions.
[2023-12-22 04:46:41,371 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. 
[2023-12-22 04:46:41,372 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 110.0625) internal successors, (1761), 16 states have internal predecessors, (1761), 0 states have call successors, (0), 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 1761
[2023-12-22 04:46:41,375 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:46:41,400 INFO  L225             Difference]: With dead ends: 10878
[2023-12-22 04:46:41,400 INFO  L226             Difference]: Without dead ends: 8758
[2023-12-22 04:46:41,404 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1786 GetRequests, 1748 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=402, Invalid=1158, Unknown=0, NotChecked=0, Total=1560
[2023-12-22 04:46:41,406 INFO  L413           NwaCegarLoop]: 378 mSDtfsCounter, 8261 mSDsluCounter, 1981 mSDsCounter, 0 mSdLazyCounter, 50698 mSolverCounterSat, 5149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8261 SdHoareTripleChecker+Valid, 2359 SdHoareTripleChecker+Invalid, 55847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5149 IncrementalHoareTripleChecker+Valid, 50698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.8s IncrementalHoareTripleChecker+Time
[2023-12-22 04:46:41,407 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8261 Valid, 2359 Invalid, 55847 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5149 Valid, 50698 Invalid, 0 Unknown, 0 Unchecked, 40.8s Time]
[2023-12-22 04:46:41,413 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8758 states.
[2023-12-22 04:46:41,525 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8758 to 8717.
[2023-12-22 04:46:41,544 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8717 states, 8716 states have (on average 1.4464203763194126) internal successors, (12607), 8716 states have internal predecessors, (12607), 0 states have call successors, (0), 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 04:46:41,556 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8717 states to 8717 states and 12607 transitions.
[2023-12-22 04:46:41,556 INFO  L78                 Accepts]: Start accepts. Automaton has 8717 states and 12607 transitions. Word has length 1761
[2023-12-22 04:46:41,559 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:46:41,560 INFO  L495      AbstractCegarLoop]: Abstraction has 8717 states and 12607 transitions.
[2023-12-22 04:46:41,560 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 110.0625) internal successors, (1761), 16 states have internal predecessors, (1761), 0 states have call successors, (0), 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 04:46:41,560 INFO  L276                IsEmpty]: Start isEmpty. Operand 8717 states and 12607 transitions.
[2023-12-22 04:46:41,590 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1784
[2023-12-22 04:46:41,590 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:46:41,591 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-22 04:46:41,597 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 04:46:41,797 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 04:46:41,798 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:46:41,798 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:46:41,798 INFO  L85        PathProgramCache]: Analyzing trace with hash -1472013201, now seen corresponding path program 1 times
[2023-12-22 04:46:41,806 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:46:41,806 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333988816]
[2023-12-22 04:46:41,806 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:46:41,806 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 04:46:41,807 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:46:41,807 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 04:46:41,808 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 04:46:42,302 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:46:42,309 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1874 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:46:42,322 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:46:42,348 INFO  L134       CoverageAnalysis]: Checked inductivity of 153 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2023-12-22 04:46:42,348 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:46:42,349 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:46:42,349 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333988816]
[2023-12-22 04:46:42,349 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [333988816] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:46:42,350 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:46:42,351 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:46:42,351 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399416438]
[2023-12-22 04:46:42,351 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:46:42,352 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:46:42,354 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:46:42,355 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:46:42,355 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:46:42,355 INFO  L87              Difference]: Start difference. First operand 8717 states and 12607 transitions. Second operand  has 3 states, 3 states have (on average 591.3333333333334) internal successors, (1774), 3 states have internal predecessors, (1774), 0 states have call successors, (0), 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 04:46:49,348 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:46:49,349 INFO  L93              Difference]: Finished difference Result 20954 states and 32211 transitions.
[2023-12-22 04:46:49,364 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:46:49,365 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 591.3333333333334) internal successors, (1774), 3 states have internal predecessors, (1774), 0 states have call successors, (0), 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 1783
[2023-12-22 04:46:49,365 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:46:49,403 INFO  L225             Difference]: With dead ends: 20954
[2023-12-22 04:46:49,403 INFO  L226             Difference]: Without dead ends: 13864
[2023-12-22 04:46:49,418 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1782 GetRequests, 1781 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 04:46:49,419 INFO  L413           NwaCegarLoop]: 3908 mSDtfsCounter, 1789 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 5805 mSolverCounterSat, 1471 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1789 SdHoareTripleChecker+Valid, 4176 SdHoareTripleChecker+Invalid, 7276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1471 IncrementalHoareTripleChecker+Valid, 5805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time
[2023-12-22 04:46:49,420 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1789 Valid, 4176 Invalid, 7276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1471 Valid, 5805 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time]
[2023-12-22 04:46:49,431 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13864 states.
[2023-12-22 04:46:49,588 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13864 to 13847.
[2023-12-22 04:46:49,599 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13847 states, 13846 states have (on average 1.3254369492994367) internal successors, (18352), 13846 states have internal predecessors, (18352), 0 states have call successors, (0), 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 04:46:49,617 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13847 states to 13847 states and 18352 transitions.
[2023-12-22 04:46:49,618 INFO  L78                 Accepts]: Start accepts. Automaton has 13847 states and 18352 transitions. Word has length 1783
[2023-12-22 04:46:49,618 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:46:49,618 INFO  L495      AbstractCegarLoop]: Abstraction has 13847 states and 18352 transitions.
[2023-12-22 04:46:49,619 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 591.3333333333334) internal successors, (1774), 3 states have internal predecessors, (1774), 0 states have call successors, (0), 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 04:46:49,619 INFO  L276                IsEmpty]: Start isEmpty. Operand 13847 states and 18352 transitions.
[2023-12-22 04:46:49,655 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1803
[2023-12-22 04:46:49,655 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:46:49,656 INFO  L195           NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2023-12-22 04:46:49,662 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-12-22 04:46:49,860 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 04:46:49,861 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:46:49,862 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:46:49,862 INFO  L85        PathProgramCache]: Analyzing trace with hash -1782272572, now seen corresponding path program 1 times
[2023-12-22 04:46:49,870 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:46:49,870 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608387652]
[2023-12-22 04:46:49,870 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:46:49,870 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 04:46:49,871 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:46:49,872 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 04:46:49,875 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 04:46:50,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:46:50,401 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1893 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:46:50,413 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:46:50,463 INFO  L134       CoverageAnalysis]: Checked inductivity of 193 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2023-12-22 04:46:50,463 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:46:50,463 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:46:50,463 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608387652]
[2023-12-22 04:46:50,463 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608387652] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:46:50,464 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:46:50,464 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:46:50,464 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505474275]
[2023-12-22 04:46:50,464 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:46:50,465 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:46:50,465 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:46:50,466 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:46:50,466 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:46:50,467 INFO  L87              Difference]: Start difference. First operand 13847 states and 18352 transitions. Second operand  has 3 states, 3 states have (on average 598.0) internal successors, (1794), 3 states have internal predecessors, (1794), 0 states have call successors, (0), 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 04:46:57,214 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:46:57,214 INFO  L93              Difference]: Finished difference Result 34602 states and 46231 transitions.
[2023-12-22 04:46:57,214 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:46:57,215 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 598.0) internal successors, (1794), 3 states have internal predecessors, (1794), 0 states have call successors, (0), 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 1802
[2023-12-22 04:46:57,215 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:46:57,246 INFO  L225             Difference]: With dead ends: 34602
[2023-12-22 04:46:57,246 INFO  L226             Difference]: Without dead ends: 22382
[2023-12-22 04:46:57,261 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1801 GetRequests, 1800 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 04:46:57,261 INFO  L413           NwaCegarLoop]: 1547 mSDtfsCounter, 2537 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 4776 mSolverCounterSat, 2064 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2537 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 6840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2064 IncrementalHoareTripleChecker+Valid, 4776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time
[2023-12-22 04:46:57,261 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2537 Valid, 1742 Invalid, 6840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2064 Valid, 4776 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time]
[2023-12-22 04:46:57,279 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22382 states.
[2023-12-22 04:46:57,575 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22382 to 22381.
[2023-12-22 04:46:57,594 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 22381 states, 22380 states have (on average 1.2106344950848973) internal successors, (27094), 22380 states have internal predecessors, (27094), 0 states have call successors, (0), 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 04:46:57,617 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22381 states to 22381 states and 27094 transitions.
[2023-12-22 04:46:57,617 INFO  L78                 Accepts]: Start accepts. Automaton has 22381 states and 27094 transitions. Word has length 1802
[2023-12-22 04:46:57,617 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:46:57,617 INFO  L495      AbstractCegarLoop]: Abstraction has 22381 states and 27094 transitions.
[2023-12-22 04:46:57,618 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 598.0) internal successors, (1794), 3 states have internal predecessors, (1794), 0 states have call successors, (0), 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 04:46:57,619 INFO  L276                IsEmpty]: Start isEmpty. Operand 22381 states and 27094 transitions.
[2023-12-22 04:46:57,660 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1809
[2023-12-22 04:46:57,662 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:46:57,666 INFO  L195           NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2023-12-22 04:46:57,671 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 (6)] Forceful destruction successful, exit code 0
[2023-12-22 04:46:57,871 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 04:46:57,871 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:46:57,872 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:46:57,872 INFO  L85        PathProgramCache]: Analyzing trace with hash -1845060690, now seen corresponding path program 1 times
[2023-12-22 04:46:57,879 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:46:57,880 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408589826]
[2023-12-22 04:46:57,880 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:46:57,880 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 04:46:57,880 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:46:57,881 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 04:46:57,900 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 04:46:58,355 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:46:58,362 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1899 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:46:58,381 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:46:58,401 INFO  L134       CoverageAnalysis]: Checked inductivity of 205 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked.
[2023-12-22 04:46:58,401 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:46:58,402 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:46:58,402 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408589826]
[2023-12-22 04:46:58,402 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [408589826] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:46:58,402 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:46:58,402 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:46:58,402 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846967478]
[2023-12-22 04:46:58,402 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:46:58,403 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:46:58,403 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:46:58,405 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:46:58,405 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:46:58,405 INFO  L87              Difference]: Start difference. First operand 22381 states and 27094 transitions. Second operand  has 3 states, 3 states have (on average 588.6666666666666) internal successors, (1766), 3 states have internal predecessors, (1766), 0 states have call successors, (0), 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 04:47:05,545 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:47:05,546 INFO  L93              Difference]: Finished difference Result 53351 states and 66512 transitions.
[2023-12-22 04:47:05,546 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:47:05,546 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 588.6666666666666) internal successors, (1766), 3 states have internal predecessors, (1766), 0 states have call successors, (0), 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 1808
[2023-12-22 04:47:05,547 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:47:05,592 INFO  L225             Difference]: With dead ends: 53351
[2023-12-22 04:47:05,592 INFO  L226             Difference]: Without dead ends: 32597
[2023-12-22 04:47:05,608 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1807 GetRequests, 1806 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 04:47:05,608 INFO  L413           NwaCegarLoop]: 2246 mSDtfsCounter, 1822 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 5951 mSolverCounterSat, 1398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1822 SdHoareTripleChecker+Valid, 2545 SdHoareTripleChecker+Invalid, 7349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1398 IncrementalHoareTripleChecker+Valid, 5951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time
[2023-12-22 04:47:05,608 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1822 Valid, 2545 Invalid, 7349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1398 Valid, 5951 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time]
[2023-12-22 04:47:05,630 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 32597 states.
[2023-12-22 04:47:05,898 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 32597 to 32587.
[2023-12-22 04:47:05,930 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32587 states, 32586 states have (on average 1.1876265881053214) internal successors, (38700), 32586 states have internal predecessors, (38700), 0 states have call successors, (0), 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 04:47:05,976 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32587 states to 32587 states and 38700 transitions.
[2023-12-22 04:47:05,976 INFO  L78                 Accepts]: Start accepts. Automaton has 32587 states and 38700 transitions. Word has length 1808
[2023-12-22 04:47:05,976 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:47:05,976 INFO  L495      AbstractCegarLoop]: Abstraction has 32587 states and 38700 transitions.
[2023-12-22 04:47:05,977 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 588.6666666666666) internal successors, (1766), 3 states have internal predecessors, (1766), 0 states have call successors, (0), 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 04:47:05,977 INFO  L276                IsEmpty]: Start isEmpty. Operand 32587 states and 38700 transitions.
[2023-12-22 04:47:06,051 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1844
[2023-12-22 04:47:06,051 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:47:06,052 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2023-12-22 04:47:06,071 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 (7)] Ended with exit code 0
[2023-12-22 04:47:06,258 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 04:47:06,258 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:47:06,259 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:47:06,259 INFO  L85        PathProgramCache]: Analyzing trace with hash 1686907640, now seen corresponding path program 1 times
[2023-12-22 04:47:06,267 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:47:06,267 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957920298]
[2023-12-22 04:47:06,267 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:47:06,267 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 04:47:06,267 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:47:06,268 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 04:47:06,272 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 04:47:06,743 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:47:06,750 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1935 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:47:06,761 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:47:06,827 INFO  L134       CoverageAnalysis]: Checked inductivity of 306 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2023-12-22 04:47:06,827 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:47:06,828 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:47:06,828 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957920298]
[2023-12-22 04:47:06,828 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [957920298] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:47:06,828 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:47:06,828 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:47:06,828 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609732750]
[2023-12-22 04:47:06,828 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:47:06,829 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:47:06,829 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:47:06,831 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:47:06,831 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:47:06,831 INFO  L87              Difference]: Start difference. First operand 32587 states and 38700 transitions. Second operand  has 3 states, 3 states have (on average 603.0) internal successors, (1809), 3 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 04:47:13,901 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:47:13,902 INFO  L93              Difference]: Finished difference Result 73752 states and 89714 transitions.
[2023-12-22 04:47:13,902 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:47:13,902 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 603.0) internal successors, (1809), 3 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 1843
[2023-12-22 04:47:13,903 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:47:13,961 INFO  L225             Difference]: With dead ends: 73752
[2023-12-22 04:47:13,961 INFO  L226             Difference]: Without dead ends: 42792
[2023-12-22 04:47:13,991 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1842 GetRequests, 1841 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 04:47:13,992 INFO  L413           NwaCegarLoop]: 3655 mSDtfsCounter, 1921 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 5617 mSolverCounterSat, 1510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1921 SdHoareTripleChecker+Valid, 3913 SdHoareTripleChecker+Invalid, 7127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1510 IncrementalHoareTripleChecker+Valid, 5617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time
[2023-12-22 04:47:13,992 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1921 Valid, 3913 Invalid, 7127 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1510 Valid, 5617 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time]
[2023-12-22 04:47:14,023 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42792 states.
[2023-12-22 04:47:14,359 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42792 to 42783.
[2023-12-22 04:47:14,399 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 42783 states, 42782 states have (on average 1.1727829460988266) internal successors, (50174), 42782 states have internal predecessors, (50174), 0 states have call successors, (0), 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 04:47:14,445 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42783 states to 42783 states and 50174 transitions.
[2023-12-22 04:47:14,445 INFO  L78                 Accepts]: Start accepts. Automaton has 42783 states and 50174 transitions. Word has length 1843
[2023-12-22 04:47:14,445 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:47:14,445 INFO  L495      AbstractCegarLoop]: Abstraction has 42783 states and 50174 transitions.
[2023-12-22 04:47:14,446 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 603.0) internal successors, (1809), 3 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 04:47:14,446 INFO  L276                IsEmpty]: Start isEmpty. Operand 42783 states and 50174 transitions.
[2023-12-22 04:47:14,496 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1846
[2023-12-22 04:47:14,496 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:47:14,497 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-22 04:47:14,504 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 04:47:14,701 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 04:47:14,702 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:47:14,702 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:47:14,703 INFO  L85        PathProgramCache]: Analyzing trace with hash -1577226275, now seen corresponding path program 1 times
[2023-12-22 04:47:14,710 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:47:14,710 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320131550]
[2023-12-22 04:47:14,710 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:47:14,711 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 04:47:14,711 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:47:14,711 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 04:47:14,712 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 04:47:15,510 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:47:15,517 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1938 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:47:15,527 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:47:15,660 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked.
[2023-12-22 04:47:15,660 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:47:15,660 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:47:15,660 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320131550]
[2023-12-22 04:47:15,661 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320131550] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:47:15,661 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:47:15,661 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 04:47:15,661 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416066496]
[2023-12-22 04:47:15,661 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:47:15,662 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:47:15,662 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:47:15,663 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:47:15,663 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:47:15,664 INFO  L87              Difference]: Start difference. First operand 42783 states and 50174 transitions. Second operand  has 3 states, 3 states have (on average 588.0) internal successors, (1764), 2 states have internal predecessors, (1764), 0 states have call successors, (0), 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 04:47:21,805 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:47:21,805 INFO  L93              Difference]: Finished difference Result 102611 states and 119486 transitions.
[2023-12-22 04:47:21,805 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:47:21,806 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 588.0) internal successors, (1764), 2 states have internal predecessors, (1764), 0 states have call successors, (0), 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 1845
[2023-12-22 04:47:21,806 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:47:21,874 INFO  L225             Difference]: With dead ends: 102611
[2023-12-22 04:47:21,874 INFO  L226             Difference]: Without dead ends: 61455
[2023-12-22 04:47:21,893 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1844 GetRequests, 1843 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 04:47:21,894 INFO  L413           NwaCegarLoop]: 1045 mSDtfsCounter, 3082 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 4770 mSolverCounterSat, 1194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3082 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 5964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1194 IncrementalHoareTripleChecker+Valid, 4770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time
[2023-12-22 04:47:21,895 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3082 Valid, 1123 Invalid, 5964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1194 Valid, 4770 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time]
[2023-12-22 04:47:21,938 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 61455 states.
[2023-12-22 04:47:22,521 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 61455 to 61455.
[2023-12-22 04:47:22,563 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 61455 states, 61454 states have (on average 1.1044032935203567) internal successors, (67870), 61454 states have internal predecessors, (67870), 0 states have call successors, (0), 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 04:47:22,639 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 61455 states to 61455 states and 67870 transitions.
[2023-12-22 04:47:22,639 INFO  L78                 Accepts]: Start accepts. Automaton has 61455 states and 67870 transitions. Word has length 1845
[2023-12-22 04:47:22,639 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:47:22,640 INFO  L495      AbstractCegarLoop]: Abstraction has 61455 states and 67870 transitions.
[2023-12-22 04:47:22,640 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 588.0) internal successors, (1764), 2 states have internal predecessors, (1764), 0 states have call successors, (0), 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 04:47:22,640 INFO  L276                IsEmpty]: Start isEmpty. Operand 61455 states and 67870 transitions.
[2023-12-22 04:47:22,708 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1961
[2023-12-22 04:47:22,708 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:47:22,709 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-22 04:47:22,715 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 04:47:22,910 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 04:47:22,911 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:47:22,911 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:47:22,912 INFO  L85        PathProgramCache]: Analyzing trace with hash 96208966, now seen corresponding path program 1 times
[2023-12-22 04:47:23,063 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:47:23,063 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [5462085]
[2023-12-22 04:47:23,064 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:47:23,064 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 04:47:23,064 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:47:23,065 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 04:47:23,066 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 04:47:23,581 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:47:23,589 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2065 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:47:23,616 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:47:23,690 INFO  L134       CoverageAnalysis]: Checked inductivity of 609 backedges. 455 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked.
[2023-12-22 04:47:23,691 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:47:23,691 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:47:23,691 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [5462085]
[2023-12-22 04:47:23,691 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [5462085] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:47:23,691 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:47:23,691 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:47:23,691 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679064723]
[2023-12-22 04:47:23,691 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:47:23,692 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:47:23,693 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:47:23,694 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:47:23,694 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:47:23,694 INFO  L87              Difference]: Start difference. First operand 61455 states and 67870 transitions. Second operand  has 3 states, 3 states have (on average 602.6666666666666) internal successors, (1808), 3 states have internal predecessors, (1808), 0 states have call successors, (0), 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 04:47:30,830 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:47:30,830 INFO  L93              Difference]: Finished difference Result 141676 states and 158674 transitions.
[2023-12-22 04:47:30,831 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:47:30,831 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 602.6666666666666) internal successors, (1808), 3 states have internal predecessors, (1808), 0 states have call successors, (0), 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 1960
[2023-12-22 04:47:30,831 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:47:30,910 INFO  L225             Difference]: With dead ends: 141676
[2023-12-22 04:47:30,910 INFO  L226             Difference]: Without dead ends: 81848
[2023-12-22 04:47:30,934 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1959 GetRequests, 1958 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 04:47:30,934 INFO  L413           NwaCegarLoop]: 1947 mSDtfsCounter, 1820 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 5490 mSolverCounterSat, 1533 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1820 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 7023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1533 IncrementalHoareTripleChecker+Valid, 5490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time
[2023-12-22 04:47:30,935 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1820 Valid, 2193 Invalid, 7023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1533 Valid, 5490 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time]
[2023-12-22 04:47:30,984 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 81848 states.
[2023-12-22 04:47:31,524 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 81848 to 78441.
[2023-12-22 04:47:31,579 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 78441 states, 78440 states have (on average 1.0930010198878124) internal successors, (85735), 78440 states have internal predecessors, (85735), 0 states have call successors, (0), 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 04:47:31,663 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 78441 states to 78441 states and 85735 transitions.
[2023-12-22 04:47:31,663 INFO  L78                 Accepts]: Start accepts. Automaton has 78441 states and 85735 transitions. Word has length 1960
[2023-12-22 04:47:31,664 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:47:31,664 INFO  L495      AbstractCegarLoop]: Abstraction has 78441 states and 85735 transitions.
[2023-12-22 04:47:31,664 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 602.6666666666666) internal successors, (1808), 3 states have internal predecessors, (1808), 0 states have call successors, (0), 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 04:47:31,664 INFO  L276                IsEmpty]: Start isEmpty. Operand 78441 states and 85735 transitions.
[2023-12-22 04:47:32,010 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2126
[2023-12-22 04:47:32,010 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:47:32,011 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:47:32,017 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 (10)] Forceful destruction successful, exit code 0
[2023-12-22 04:47:32,219 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 04:47:32,219 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:47:32,222 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:47:32,223 INFO  L85        PathProgramCache]: Analyzing trace with hash -1772169721, now seen corresponding path program 1 times
[2023-12-22 04:47:32,233 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:47:32,233 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [261891756]
[2023-12-22 04:47:32,233 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:47:32,233 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 04:47:32,233 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:47:32,234 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 04:47:32,252 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 04:47:32,863 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:47:32,871 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2227 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:47:32,882 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:47:33,088 INFO  L134       CoverageAnalysis]: Checked inductivity of 900 backedges. 717 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked.
[2023-12-22 04:47:33,088 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:47:33,088 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:47:33,089 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [261891756]
[2023-12-22 04:47:33,089 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [261891756] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:47:33,089 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:47:33,089 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:47:33,089 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468311260]
[2023-12-22 04:47:33,089 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:47:33,090 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:47:33,090 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:47:33,092 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:47:33,092 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:47:33,092 INFO  L87              Difference]: Start difference. First operand 78441 states and 85735 transitions. Second operand  has 3 states, 3 states have (on average 658.6666666666666) internal successors, (1976), 3 states have internal predecessors, (1976), 0 states have call successors, (0), 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 04:47:40,220 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:47:40,220 INFO  L93              Difference]: Finished difference Result 207897 states and 228244 transitions.
[2023-12-22 04:47:40,221 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:47:40,221 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 658.6666666666666) internal successors, (1976), 3 states have internal predecessors, (1976), 0 states have call successors, (0), 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 2125
[2023-12-22 04:47:40,221 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:47:40,360 INFO  L225             Difference]: With dead ends: 207897
[2023-12-22 04:47:40,361 INFO  L226             Difference]: Without dead ends: 125953
[2023-12-22 04:47:40,398 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2124 GetRequests, 2123 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 04:47:40,398 INFO  L413           NwaCegarLoop]: 1673 mSDtfsCounter, 2290 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 4469 mSolverCounterSat, 2359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2290 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 6828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2359 IncrementalHoareTripleChecker+Valid, 4469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time
[2023-12-22 04:47:40,398 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2290 Valid, 1804 Invalid, 6828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2359 Valid, 4469 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time]
[2023-12-22 04:47:40,484 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 125953 states.
[2023-12-22 04:47:41,626 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 125953 to 120854.
[2023-12-22 04:47:41,681 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 120854 states, 120853 states have (on average 1.0693404383838216) internal successors, (129233), 120853 states have internal predecessors, (129233), 0 states have call successors, (0), 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 04:47:41,980 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 120854 states to 120854 states and 129233 transitions.
[2023-12-22 04:47:41,980 INFO  L78                 Accepts]: Start accepts. Automaton has 120854 states and 129233 transitions. Word has length 2125
[2023-12-22 04:47:41,980 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:47:41,980 INFO  L495      AbstractCegarLoop]: Abstraction has 120854 states and 129233 transitions.
[2023-12-22 04:47:41,981 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 658.6666666666666) internal successors, (1976), 3 states have internal predecessors, (1976), 0 states have call successors, (0), 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 04:47:41,981 INFO  L276                IsEmpty]: Start isEmpty. Operand 120854 states and 129233 transitions.
[2023-12-22 04:47:42,088 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2169
[2023-12-22 04:47:42,089 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:47:42,089 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:47:42,094 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 04:47:42,290 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 04:47:42,290 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:47:42,291 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:47:42,291 INFO  L85        PathProgramCache]: Analyzing trace with hash 1024607314, now seen corresponding path program 1 times
[2023-12-22 04:47:42,300 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:47:42,300 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580851152]
[2023-12-22 04:47:42,300 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:47:42,300 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 04:47:42,300 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:47:42,301 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 04:47:42,304 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 04:47:43,027 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:47:43,037 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:47:43,049 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:47:43,375 INFO  L134       CoverageAnalysis]: Checked inductivity of 1399 backedges. 979 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2023-12-22 04:47:43,375 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:47:43,375 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:47:43,375 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580851152]
[2023-12-22 04:47:43,375 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [580851152] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:47:43,375 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:47:43,375 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:47:43,376 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190851258]
[2023-12-22 04:47:43,376 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:47:43,377 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:47:43,377 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:47:43,378 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:47:43,378 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:47:43,378 INFO  L87              Difference]: Start difference. First operand 120854 states and 129233 transitions. Second operand  has 3 states, 3 states have (on average 631.3333333333334) internal successors, (1894), 3 states have internal predecessors, (1894), 0 states have call successors, (0), 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 04:47:49,567 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:47:49,567 INFO  L93              Difference]: Finished difference Result 255375 states and 272877 transitions.
[2023-12-22 04:47:49,568 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:47:49,568 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 631.3333333333334) internal successors, (1894), 3 states have internal predecessors, (1894), 0 states have call successors, (0), 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 2168
[2023-12-22 04:47:49,568 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:47:49,820 INFO  L225             Difference]: With dead ends: 255375
[2023-12-22 04:47:49,820 INFO  L226             Difference]: Without dead ends: 136148
[2023-12-22 04:47:49,841 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2167 GetRequests, 2166 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 04:47:49,842 INFO  L413           NwaCegarLoop]: 3727 mSDtfsCounter, 1594 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 5410 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 3945 SdHoareTripleChecker+Invalid, 5691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 5410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time
[2023-12-22 04:47:49,842 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1594 Valid, 3945 Invalid, 5691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 5410 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time]
[2023-12-22 04:47:49,920 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 136148 states.
[2023-12-22 04:47:50,904 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 136148 to 134439.
[2023-12-22 04:47:51,155 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 134439 states, 134438 states have (on average 1.064096460822089) internal successors, (143055), 134438 states have internal predecessors, (143055), 0 states have call successors, (0), 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 04:47:51,324 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 134439 states to 134439 states and 143055 transitions.
[2023-12-22 04:47:51,324 INFO  L78                 Accepts]: Start accepts. Automaton has 134439 states and 143055 transitions. Word has length 2168
[2023-12-22 04:47:51,324 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:47:51,324 INFO  L495      AbstractCegarLoop]: Abstraction has 134439 states and 143055 transitions.
[2023-12-22 04:47:51,325 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 631.3333333333334) internal successors, (1894), 3 states have internal predecessors, (1894), 0 states have call successors, (0), 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 04:47:51,325 INFO  L276                IsEmpty]: Start isEmpty. Operand 134439 states and 143055 transitions.
[2023-12-22 04:47:51,587 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2185
[2023-12-22 04:47:51,587 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:47:51,588 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2023-12-22 04:47:51,595 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 04:47:51,788 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 04:47:51,789 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:47:51,789 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:47:51,789 INFO  L85        PathProgramCache]: Analyzing trace with hash 251550208, now seen corresponding path program 1 times
[2023-12-22 04:47:51,798 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:47:51,798 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169522553]
[2023-12-22 04:47:51,798 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:47:51,799 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 04:47:51,799 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:47:51,800 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 04:47:51,800 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 04:47:52,409 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:47:52,419 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2305 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:47:52,431 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:47:52,506 INFO  L134       CoverageAnalysis]: Checked inductivity of 1097 backedges. 799 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked.
[2023-12-22 04:47:52,506 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:47:52,507 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:47:52,507 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169522553]
[2023-12-22 04:47:52,507 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [169522553] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:47:52,507 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:47:52,507 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:47:52,507 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788908357]
[2023-12-22 04:47:52,507 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:47:52,508 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:47:52,508 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:47:52,510 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:47:52,510 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:47:52,510 INFO  L87              Difference]: Start difference. First operand 134439 states and 143055 transitions. Second operand  has 3 states, 3 states have (on average 641.3333333333334) internal successors, (1924), 3 states have internal predecessors, (1924), 0 states have call successors, (0), 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 04:48:00,182 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:48:00,182 INFO  L93              Difference]: Finished difference Result 331850 states and 355617 transitions.
[2023-12-22 04:48:00,186 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:48:00,187 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 641.3333333333334) internal successors, (1924), 3 states have internal predecessors, (1924), 0 states have call successors, (0), 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 2184
[2023-12-22 04:48:00,187 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:48:00,448 INFO  L225             Difference]: With dead ends: 331850
[2023-12-22 04:48:00,449 INFO  L226             Difference]: Without dead ends: 199038
[2023-12-22 04:48:00,495 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2183 GetRequests, 2182 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 04:48:00,496 INFO  L413           NwaCegarLoop]: 3479 mSDtfsCounter, 1826 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 5152 mSolverCounterSat, 1974 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1826 SdHoareTripleChecker+Valid, 3701 SdHoareTripleChecker+Invalid, 7126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1974 IncrementalHoareTripleChecker+Valid, 5152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time
[2023-12-22 04:48:00,496 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1826 Valid, 3701 Invalid, 7126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1974 Valid, 5152 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time]
[2023-12-22 04:48:00,641 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 199038 states.
[2023-12-22 04:48:02,063 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 199038 to 195571.
[2023-12-22 04:48:02,164 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 195571 states, 195570 states have (on average 1.0583320550186635) internal successors, (206978), 195570 states have internal predecessors, (206978), 0 states have call successors, (0), 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 04:48:02,526 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 195571 states to 195571 states and 206978 transitions.
[2023-12-22 04:48:02,526 INFO  L78                 Accepts]: Start accepts. Automaton has 195571 states and 206978 transitions. Word has length 2184
[2023-12-22 04:48:02,527 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:48:02,527 INFO  L495      AbstractCegarLoop]: Abstraction has 195571 states and 206978 transitions.
[2023-12-22 04:48:02,527 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 641.3333333333334) internal successors, (1924), 3 states have internal predecessors, (1924), 0 states have call successors, (0), 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 04:48:02,527 INFO  L276                IsEmpty]: Start isEmpty. Operand 195571 states and 206978 transitions.
[2023-12-22 04:48:02,856 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2275
[2023-12-22 04:48:02,856 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:48:02,857 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-22 04:48:02,863 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 (13)] Ended with exit code 0
[2023-12-22 04:48:03,057 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 04:48:03,058 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:48:03,058 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:48:03,058 INFO  L85        PathProgramCache]: Analyzing trace with hash -120838362, now seen corresponding path program 1 times
[2023-12-22 04:48:03,070 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:48:03,070 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656068365]
[2023-12-22 04:48:03,070 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:48:03,070 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 04:48:03,070 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:48:03,071 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 04:48:03,072 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 04:48:03,755 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:48:03,764 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2409 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:48:03,776 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:48:03,814 INFO  L134       CoverageAnalysis]: Checked inductivity of 1504 backedges. 994 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked.
[2023-12-22 04:48:03,814 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:48:03,815 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:48:03,815 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1656068365]
[2023-12-22 04:48:03,815 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1656068365] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:48:03,815 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:48:03,815 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:48:03,815 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308212144]
[2023-12-22 04:48:03,815 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:48:03,816 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:48:03,816 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:48:03,817 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:48:03,818 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:48:03,818 INFO  L87              Difference]: Start difference. First operand 195571 states and 206978 transitions. Second operand  has 3 states, 3 states have (on average 636.3333333333334) internal successors, (1909), 3 states have internal predecessors, (1909), 0 states have call successors, (0), 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 04:48:11,005 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:48:11,006 INFO  L93              Difference]: Finished difference Result 450635 states and 479149 transitions.
[2023-12-22 04:48:11,006 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:48:11,007 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 636.3333333333334) internal successors, (1909), 3 states have internal predecessors, (1909), 0 states have call successors, (0), 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 2274
[2023-12-22 04:48:11,007 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:48:11,450 INFO  L225             Difference]: With dead ends: 450635
[2023-12-22 04:48:11,451 INFO  L226             Difference]: Without dead ends: 256691
[2023-12-22 04:48:11,518 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2273 GetRequests, 2272 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 04:48:11,518 INFO  L413           NwaCegarLoop]: 3475 mSDtfsCounter, 1912 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 5161 mSolverCounterSat, 1176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1912 SdHoareTripleChecker+Valid, 3810 SdHoareTripleChecker+Invalid, 6337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1176 IncrementalHoareTripleChecker+Valid, 5161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time
[2023-12-22 04:48:11,519 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1912 Valid, 3810 Invalid, 6337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1176 Valid, 5161 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time]
[2023-12-22 04:48:11,667 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 256691 states.
[2023-12-22 04:48:13,826 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 256691 to 254991.
[2023-12-22 04:48:13,978 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 254991 states, 254990 states have (on average 1.0508490529040355) internal successors, (267956), 254990 states have internal predecessors, (267956), 0 states have call successors, (0), 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 04:48:14,744 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 254991 states to 254991 states and 267956 transitions.
[2023-12-22 04:48:14,744 INFO  L78                 Accepts]: Start accepts. Automaton has 254991 states and 267956 transitions. Word has length 2274
[2023-12-22 04:48:14,744 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:48:14,745 INFO  L495      AbstractCegarLoop]: Abstraction has 254991 states and 267956 transitions.
[2023-12-22 04:48:14,745 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 636.3333333333334) internal successors, (1909), 3 states have internal predecessors, (1909), 0 states have call successors, (0), 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 04:48:14,745 INFO  L276                IsEmpty]: Start isEmpty. Operand 254991 states and 267956 transitions.
[2023-12-22 04:48:15,196 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2379
[2023-12-22 04:48:15,196 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:48:15,197 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-22 04:48:15,220 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 (14)] Ended with exit code 0
[2023-12-22 04:48:15,408 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 04:48:15,409 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:48:15,409 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:48:15,409 INFO  L85        PathProgramCache]: Analyzing trace with hash 1115258399, now seen corresponding path program 1 times
[2023-12-22 04:48:15,419 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:48:15,419 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697852193]
[2023-12-22 04:48:15,419 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:48:15,419 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 04:48:15,419 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:48:15,421 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 04:48:15,422 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 04:48:16,077 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:48:16,087 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2514 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:48:16,131 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:48:16,188 INFO  L134       CoverageAnalysis]: Checked inductivity of 1818 backedges. 1215 proven. 0 refuted. 0 times theorem prover too weak. 603 trivial. 0 not checked.
[2023-12-22 04:48:16,189 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:48:16,189 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:48:16,189 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697852193]
[2023-12-22 04:48:16,189 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [697852193] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:48:16,189 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:48:16,189 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:48:16,189 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975325441]
[2023-12-22 04:48:16,189 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:48:16,190 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:48:16,190 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:48:16,192 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:48:16,192 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:48:16,192 INFO  L87              Difference]: Start difference. First operand 254991 states and 267956 transitions. Second operand  has 3 states, 3 states have (on average 644.3333333333334) internal successors, (1933), 3 states have internal predecessors, (1933), 0 states have call successors, (0), 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 04:48:24,358 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:48:24,359 INFO  L93              Difference]: Finished difference Result 571192 states and 604652 transitions.
[2023-12-22 04:48:24,359 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:48:24,360 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 644.3333333333334) internal successors, (1933), 3 states have internal predecessors, (1933), 0 states have call successors, (0), 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 2378
[2023-12-22 04:48:24,360 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:48:24,905 INFO  L225             Difference]: With dead ends: 571192
[2023-12-22 04:48:24,905 INFO  L226             Difference]: Without dead ends: 316127
[2023-12-22 04:48:24,976 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2377 GetRequests, 2376 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 04:48:24,977 INFO  L413           NwaCegarLoop]: 3634 mSDtfsCounter, 1773 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 5572 mSolverCounterSat, 1394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1773 SdHoareTripleChecker+Valid, 3869 SdHoareTripleChecker+Invalid, 6966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1394 IncrementalHoareTripleChecker+Valid, 5572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time
[2023-12-22 04:48:24,977 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1773 Valid, 3869 Invalid, 6966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1394 Valid, 5572 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time]
[2023-12-22 04:48:25,167 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 316127 states.
[2023-12-22 04:48:27,556 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 316127 to 316115.
[2023-12-22 04:48:27,719 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 316115 states, 316114 states have (on average 1.0469229455196543) internal successors, (330947), 316114 states have internal predecessors, (330947), 0 states have call successors, (0), 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 04:48:28,327 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 316115 states to 316115 states and 330947 transitions.
[2023-12-22 04:48:28,327 INFO  L78                 Accepts]: Start accepts. Automaton has 316115 states and 330947 transitions. Word has length 2378
[2023-12-22 04:48:28,328 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:48:28,328 INFO  L495      AbstractCegarLoop]: Abstraction has 316115 states and 330947 transitions.
[2023-12-22 04:48:28,328 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 644.3333333333334) internal successors, (1933), 3 states have internal predecessors, (1933), 0 states have call successors, (0), 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 04:48:28,328 INFO  L276                IsEmpty]: Start isEmpty. Operand 316115 states and 330947 transitions.
[2023-12-22 04:48:28,803 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2518
[2023-12-22 04:48:28,803 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:48:28,804 INFO  L195           NwaCegarLoop]: trace histogram [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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-22 04:48:28,813 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 04:48:29,004 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 04:48:29,005 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:48:29,005 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:48:29,006 INFO  L85        PathProgramCache]: Analyzing trace with hash -1449140742, now seen corresponding path program 1 times
[2023-12-22 04:48:29,016 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:48:29,016 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934139426]
[2023-12-22 04:48:29,016 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:48:29,016 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 04:48:29,016 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:48:29,017 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 04:48:29,017 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 04:48:29,870 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:48:29,880 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2671 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:48:29,893 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:48:29,962 INFO  L134       CoverageAnalysis]: Checked inductivity of 2226 backedges. 1366 proven. 0 refuted. 0 times theorem prover too weak. 860 trivial. 0 not checked.
[2023-12-22 04:48:29,962 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:48:29,962 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:48:29,962 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934139426]
[2023-12-22 04:48:29,962 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [934139426] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:48:29,962 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:48:29,962 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:48:29,962 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507115467]
[2023-12-22 04:48:29,962 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:48:29,964 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:48:29,964 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:48:29,965 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:48:29,965 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:48:29,965 INFO  L87              Difference]: Start difference. First operand 316115 states and 330947 transitions. Second operand  has 3 states, 3 states have (on average 651.0) internal successors, (1953), 3 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:48:37,557 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:48:37,558 INFO  L93              Difference]: Finished difference Result 644209 states and 674976 transitions.
[2023-12-22 04:48:37,558 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:48:37,559 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 651.0) internal successors, (1953), 3 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2517
[2023-12-22 04:48:37,559 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:48:37,986 INFO  L225             Difference]: With dead ends: 644209
[2023-12-22 04:48:37,986 INFO  L226             Difference]: Without dead ends: 329721
[2023-12-22 04:48:38,340 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2516 GetRequests, 2515 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 04:48:38,342 INFO  L413           NwaCegarLoop]: 3784 mSDtfsCounter, 1705 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 4749 mSolverCounterSat, 1184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1705 SdHoareTripleChecker+Valid, 3997 SdHoareTripleChecker+Invalid, 5933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1184 IncrementalHoareTripleChecker+Valid, 4749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time
[2023-12-22 04:48:38,343 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1705 Valid, 3997 Invalid, 5933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1184 Valid, 4749 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time]
[2023-12-22 04:48:38,573 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 329721 states.
[2023-12-22 04:48:41,130 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 329721 to 329701.
[2023-12-22 04:48:41,290 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 329701 states, 329700 states have (on average 1.044388838337883) internal successors, (344335), 329700 states have internal predecessors, (344335), 0 states have call successors, (0), 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 04:48:42,165 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 329701 states to 329701 states and 344335 transitions.
[2023-12-22 04:48:42,165 INFO  L78                 Accepts]: Start accepts. Automaton has 329701 states and 344335 transitions. Word has length 2517
[2023-12-22 04:48:42,165 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:48:42,166 INFO  L495      AbstractCegarLoop]: Abstraction has 329701 states and 344335 transitions.
[2023-12-22 04:48:42,166 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 651.0) internal successors, (1953), 3 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:48:42,166 INFO  L276                IsEmpty]: Start isEmpty. Operand 329701 states and 344335 transitions.
[2023-12-22 04:48:42,705 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2669
[2023-12-22 04:48:42,705 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:48:42,706 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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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]
[2023-12-22 04:48:42,725 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 04:48:42,925 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 04:48:42,926 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:48:42,926 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:48:42,926 INFO  L85        PathProgramCache]: Analyzing trace with hash -43666365, now seen corresponding path program 1 times
[2023-12-22 04:48:42,938 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:48:42,938 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1447345488]
[2023-12-22 04:48:42,939 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:48:42,939 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 04:48:42,939 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:48:42,940 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 04:48:42,942 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 04:48:43,839 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:48:43,850 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2793 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:48:43,864 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:48:45,476 INFO  L134       CoverageAnalysis]: Checked inductivity of 1784 backedges. 1702 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked.
[2023-12-22 04:48:45,476 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:48:45,476 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:48:45,476 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1447345488]
[2023-12-22 04:48:45,476 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1447345488] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:48:45,476 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:48:45,477 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-22 04:48:45,477 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933493212]
[2023-12-22 04:48:45,477 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:48:45,478 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-22 04:48:45,478 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:48:45,480 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-22 04:48:45,480 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-12-22 04:48:45,480 INFO  L87              Difference]: Start difference. First operand 329701 states and 344335 transitions. Second operand  has 4 states, 4 states have (on average 647.0) internal successors, (2588), 4 states have internal predecessors, (2588), 0 states have call successors, (0), 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 04:48:56,241 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:48:56,242 INFO  L93              Difference]: Finished difference Result 661172 states and 690531 transitions.
[2023-12-22 04:48:56,242 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-22 04:48:56,243 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 647.0) internal successors, (2588), 4 states have internal predecessors, (2588), 0 states have call successors, (0), 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 2668
[2023-12-22 04:48:56,243 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:48:56,677 INFO  L225             Difference]: With dead ends: 661172
[2023-12-22 04:48:56,677 INFO  L226             Difference]: Without dead ends: 331398
[2023-12-22 04:48:56,786 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2667 GetRequests, 2665 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 04:48:56,786 INFO  L413           NwaCegarLoop]: 1539 mSDtfsCounter, 2995 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 9059 mSolverCounterSat, 1031 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2995 SdHoareTripleChecker+Valid, 1944 SdHoareTripleChecker+Invalid, 10090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1031 IncrementalHoareTripleChecker+Valid, 9059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time
[2023-12-22 04:48:56,788 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2995 Valid, 1944 Invalid, 10090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1031 Valid, 9059 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time]
[2023-12-22 04:48:57,065 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 331398 states.
[2023-12-22 04:48:59,611 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 331398 to 329699.
[2023-12-22 04:48:59,772 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 329699 states, 329698 states have (on average 1.025529423897021) internal successors, (338115), 329698 states have internal predecessors, (338115), 0 states have call successors, (0), 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 04:49:00,391 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 329699 states to 329699 states and 338115 transitions.
[2023-12-22 04:49:00,391 INFO  L78                 Accepts]: Start accepts. Automaton has 329699 states and 338115 transitions. Word has length 2668
[2023-12-22 04:49:00,391 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:49:00,391 INFO  L495      AbstractCegarLoop]: Abstraction has 329699 states and 338115 transitions.
[2023-12-22 04:49:00,392 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 647.0) internal successors, (2588), 4 states have internal predecessors, (2588), 0 states have call successors, (0), 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 04:49:00,392 INFO  L276                IsEmpty]: Start isEmpty. Operand 329699 states and 338115 transitions.
[2023-12-22 04:49:00,981 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2904
[2023-12-22 04:49:00,981 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:49:00,982 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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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]
[2023-12-22 04:49:00,989 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 04:49:01,182 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 04:49:01,183 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:49:01,183 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:49:01,184 INFO  L85        PathProgramCache]: Analyzing trace with hash 1141222510, now seen corresponding path program 1 times
[2023-12-22 04:49:01,198 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:49:01,198 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1190808782]
[2023-12-22 04:49:01,198 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:49:01,198 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 04:49:01,198 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:49:01,199 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 04:49:01,200 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 04:49:02,084 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:49:02,099 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3049 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:49:02,113 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:49:02,362 INFO  L134       CoverageAnalysis]: Checked inductivity of 2751 backedges. 2122 proven. 0 refuted. 0 times theorem prover too weak. 629 trivial. 0 not checked.
[2023-12-22 04:49:02,362 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:49:02,363 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:49:02,363 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1190808782]
[2023-12-22 04:49:02,363 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1190808782] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:49:02,363 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:49:02,363 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:49:02,363 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543401607]
[2023-12-22 04:49:02,363 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:49:02,365 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:49:02,365 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:49:02,367 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:49:02,367 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:49:02,367 INFO  L87              Difference]: Start difference. First operand 329699 states and 338115 transitions. Second operand  has 3 states, 3 states have (on average 819.0) internal successors, (2457), 3 states have internal predecessors, (2457), 0 states have call successors, (0), 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 04:49:09,244 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:49:09,244 INFO  L93              Difference]: Finished difference Result 667957 states and 684848 transitions.
[2023-12-22 04:49:09,245 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:49:09,245 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 819.0) internal successors, (2457), 3 states have internal predecessors, (2457), 0 states have call successors, (0), 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 2903
[2023-12-22 04:49:09,246 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:49:10,092 INFO  L225             Difference]: With dead ends: 667957
[2023-12-22 04:49:10,092 INFO  L226             Difference]: Without dead ends: 322827
[2023-12-22 04:49:10,306 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2902 GetRequests, 2901 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 04:49:10,307 INFO  L413           NwaCegarLoop]: 2843 mSDtfsCounter, 1770 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 4342 mSolverCounterSat, 917 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 3040 SdHoareTripleChecker+Invalid, 5259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 917 IncrementalHoareTripleChecker+Valid, 4342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time
[2023-12-22 04:49:10,307 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1770 Valid, 3040 Invalid, 5259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [917 Valid, 4342 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time]
[2023-12-22 04:49:10,581 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 322827 states.
[2023-12-22 04:49:13,509 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 322827 to 317726.
[2023-12-22 04:49:13,655 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 317726 states, 317725 states have (on average 1.014987803918483) internal successors, (322487), 317725 states have internal predecessors, (322487), 0 states have call successors, (0), 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 04:49:14,020 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 317726 states to 317726 states and 322487 transitions.
[2023-12-22 04:49:14,020 INFO  L78                 Accepts]: Start accepts. Automaton has 317726 states and 322487 transitions. Word has length 2903
[2023-12-22 04:49:14,021 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:49:14,021 INFO  L495      AbstractCegarLoop]: Abstraction has 317726 states and 322487 transitions.
[2023-12-22 04:49:14,021 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 819.0) internal successors, (2457), 3 states have internal predecessors, (2457), 0 states have call successors, (0), 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 04:49:14,021 INFO  L276                IsEmpty]: Start isEmpty. Operand 317726 states and 322487 transitions.
[2023-12-22 04:49:14,585 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3068
[2023-12-22 04:49:14,586 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:49:14,587 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, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2023-12-22 04:49:14,593 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 04:49:14,787 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 04:49:14,787 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:49:14,788 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:49:14,788 INFO  L85        PathProgramCache]: Analyzing trace with hash -1446770620, now seen corresponding path program 1 times
[2023-12-22 04:49:14,800 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:49:14,800 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011581257]
[2023-12-22 04:49:14,800 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:49:14,800 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 04:49:14,801 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:49:14,802 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 04:49:14,802 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 04:49:15,778 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:49:15,793 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3239 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-22 04:49:15,817 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:49:18,288 INFO  L134       CoverageAnalysis]: Checked inductivity of 3852 backedges. 2797 proven. 199 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked.
[2023-12-22 04:49:18,288 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 04:49:20,781 INFO  L134       CoverageAnalysis]: Checked inductivity of 3852 backedges. 2797 proven. 199 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked.
[2023-12-22 04:49:20,781 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:49:20,781 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011581257]
[2023-12-22 04:49:20,781 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011581257] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-22 04:49:20,781 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-22 04:49:20,782 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6
[2023-12-22 04:49:20,782 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004055534]
[2023-12-22 04:49:20,782 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-22 04:49:20,784 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-22 04:49:20,784 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:49:20,789 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-22 04:49:20,789 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-22 04:49:20,789 INFO  L87              Difference]: Start difference. First operand 317726 states and 322487 transitions. Second operand  has 6 states, 6 states have (on average 409.5) internal successors, (2457), 6 states have internal predecessors, (2457), 0 states have call successors, (0), 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 04:49:33,067 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:49:33,067 INFO  L93              Difference]: Finished difference Result 632864 states and 642381 transitions.
[2023-12-22 04:49:33,068 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-22 04:49:33,069 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 409.5) internal successors, (2457), 6 states have internal predecessors, (2457), 0 states have call successors, (0), 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 3067
[2023-12-22 04:49:33,069 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:49:33,520 INFO  L225             Difference]: With dead ends: 632864
[2023-12-22 04:49:33,520 INFO  L226             Difference]: Without dead ends: 316757
[2023-12-22 04:49:33,864 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6138 GetRequests, 6131 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72
[2023-12-22 04:49:33,873 INFO  L413           NwaCegarLoop]: 322 mSDtfsCounter, 9027 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 13363 mSolverCounterSat, 843 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9027 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 14206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 843 IncrementalHoareTripleChecker+Valid, 13363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time
[2023-12-22 04:49:33,873 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9027 Valid, 801 Invalid, 14206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [843 Valid, 13363 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time]
[2023-12-22 04:49:34,100 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 316757 states.
[2023-12-22 04:49:36,487 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 316757 to 315978.
[2023-12-22 04:49:36,642 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 315978 states, 315977 states have (on average 1.0145516920535356) internal successors, (320575), 315977 states have internal predecessors, (320575), 0 states have call successors, (0), 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 04:49:37,253 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 315978 states to 315978 states and 320575 transitions.
[2023-12-22 04:49:37,253 INFO  L78                 Accepts]: Start accepts. Automaton has 315978 states and 320575 transitions. Word has length 3067
[2023-12-22 04:49:37,254 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:49:37,254 INFO  L495      AbstractCegarLoop]: Abstraction has 315978 states and 320575 transitions.
[2023-12-22 04:49:37,254 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 409.5) internal successors, (2457), 6 states have internal predecessors, (2457), 0 states have call successors, (0), 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 04:49:37,254 INFO  L276                IsEmpty]: Start isEmpty. Operand 315978 states and 320575 transitions.
[2023-12-22 04:49:37,745 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3158
[2023-12-22 04:49:37,745 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:49:37,746 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2023-12-22 04:49:37,752 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0
[2023-12-22 04:49:37,946 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 04:49:37,947 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:49:37,947 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:49:37,947 INFO  L85        PathProgramCache]: Analyzing trace with hash -185188134, now seen corresponding path program 1 times
[2023-12-22 04:49:37,960 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:49:37,960 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48367805]
[2023-12-22 04:49:37,960 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:49:37,960 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:49:37,960 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:49:37,961 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 04:49:37,964 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 04:49:38,796 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:49:38,812 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3285 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:49:38,829 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:49:38,919 INFO  L134       CoverageAnalysis]: Checked inductivity of 2454 backedges. 1891 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked.
[2023-12-22 04:49:38,919 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:49:38,919 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:49:38,919 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48367805]
[2023-12-22 04:49:38,919 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [48367805] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:49:38,919 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:49:38,919 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:49:38,920 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377966996]
[2023-12-22 04:49:38,920 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:49:38,921 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:49:38,921 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:49:38,923 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:49:38,923 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:49:38,923 INFO  L87              Difference]: Start difference. First operand 315978 states and 320575 transitions. Second operand  has 3 states, 3 states have (on average 905.3333333333334) internal successors, (2716), 3 states have internal predecessors, (2716), 0 states have call successors, (0), 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 04:49:45,905 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:49:45,905 INFO  L93              Difference]: Finished difference Result 672777 states and 683767 transitions.
[2023-12-22 04:49:45,905 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:49:45,906 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 905.3333333333334) internal successors, (2716), 3 states have internal predecessors, (2716), 0 states have call successors, (0), 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 3157
[2023-12-22 04:49:45,907 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:49:46,343 INFO  L225             Difference]: With dead ends: 672777
[2023-12-22 04:49:46,343 INFO  L226             Difference]: Without dead ends: 348220
[2023-12-22 04:49:46,468 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3156 GetRequests, 3155 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 04:49:46,468 INFO  L413           NwaCegarLoop]: 2791 mSDtfsCounter, 1748 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 4369 mSolverCounterSat, 826 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 2947 SdHoareTripleChecker+Invalid, 5195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 826 IncrementalHoareTripleChecker+Valid, 4369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time
[2023-12-22 04:49:46,468 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1748 Valid, 2947 Invalid, 5195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [826 Valid, 4369 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time]
[2023-12-22 04:49:46,987 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 348220 states.
[2023-12-22 04:49:49,856 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 348220 to 346507.
[2023-12-22 04:49:50,038 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 346507 states, 346506 states have (on average 1.0130820245536873) internal successors, (351039), 346506 states have internal predecessors, (351039), 0 states have call successors, (0), 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 04:49:50,736 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 346507 states to 346507 states and 351039 transitions.
[2023-12-22 04:49:50,736 INFO  L78                 Accepts]: Start accepts. Automaton has 346507 states and 351039 transitions. Word has length 3157
[2023-12-22 04:49:50,737 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:49:50,737 INFO  L495      AbstractCegarLoop]: Abstraction has 346507 states and 351039 transitions.
[2023-12-22 04:49:50,738 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 905.3333333333334) internal successors, (2716), 3 states have internal predecessors, (2716), 0 states have call successors, (0), 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 04:49:50,738 INFO  L276                IsEmpty]: Start isEmpty. Operand 346507 states and 351039 transitions.
[2023-12-22 04:49:51,310 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3185
[2023-12-22 04:49:51,311 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:49:51,312 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2023-12-22 04:49:51,323 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 04:49:51,517 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 04:49:51,518 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:49:51,518 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:49:51,519 INFO  L85        PathProgramCache]: Analyzing trace with hash 594968673, now seen corresponding path program 1 times
[2023-12-22 04:49:51,531 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:49:51,531 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368708062]
[2023-12-22 04:49:51,531 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:49:51,531 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 04:49:51,531 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:49:51,532 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 04:49:51,533 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 04:49:52,472 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:49:52,486 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3354 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:49:52,503 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:49:52,812 INFO  L134       CoverageAnalysis]: Checked inductivity of 5051 backedges. 3524 proven. 0 refuted. 0 times theorem prover too weak. 1527 trivial. 0 not checked.
[2023-12-22 04:49:52,812 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:49:52,812 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:49:52,813 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368708062]
[2023-12-22 04:49:52,813 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368708062] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:49:52,813 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:49:52,813 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:49:52,813 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724124016]
[2023-12-22 04:49:52,813 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:49:52,815 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:49:52,815 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:49:52,817 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:49:52,817 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:49:52,818 INFO  L87              Difference]: Start difference. First operand 346507 states and 351039 transitions. Second operand  has 3 states, 3 states have (on average 739.3333333333334) internal successors, (2218), 3 states have internal predecessors, (2218), 0 states have call successors, (0), 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 04:50:00,029 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:50:00,029 INFO  L93              Difference]: Finished difference Result 786512 states and 797006 transitions.
[2023-12-22 04:50:00,035 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:50:00,035 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 739.3333333333334) internal successors, (2218), 3 states have internal predecessors, (2218), 0 states have call successors, (0), 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 3184
[2023-12-22 04:50:00,036 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:50:00,661 INFO  L225             Difference]: With dead ends: 786512
[2023-12-22 04:50:00,661 INFO  L226             Difference]: Without dead ends: 438232
[2023-12-22 04:50:00,792 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3183 GetRequests, 3182 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 04:50:00,792 INFO  L413           NwaCegarLoop]: 2727 mSDtfsCounter, 1491 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 4439 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 5099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 4439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time
[2023-12-22 04:50:00,793 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 2864 Invalid, 5099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 4439 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time]
[2023-12-22 04:50:01,164 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 438232 states.
[2023-12-22 04:50:04,527 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 438232 to 426311.
[2023-12-22 04:50:04,735 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 426311 states, 426310 states have (on average 1.010877061293425) internal successors, (430947), 426310 states have internal predecessors, (430947), 0 states have call successors, (0), 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 04:50:05,559 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 426311 states to 426311 states and 430947 transitions.
[2023-12-22 04:50:05,559 INFO  L78                 Accepts]: Start accepts. Automaton has 426311 states and 430947 transitions. Word has length 3184
[2023-12-22 04:50:05,560 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:50:05,560 INFO  L495      AbstractCegarLoop]: Abstraction has 426311 states and 430947 transitions.
[2023-12-22 04:50:05,561 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 739.3333333333334) internal successors, (2218), 3 states have internal predecessors, (2218), 0 states have call successors, (0), 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 04:50:05,561 INFO  L276                IsEmpty]: Start isEmpty. Operand 426311 states and 430947 transitions.
[2023-12-22 04:50:06,157 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3388
[2023-12-22 04:50:06,157 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:50:06,158 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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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[2023-12-22 04:50:06,164 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 (21)] Forceful destruction successful, exit code 0
[2023-12-22 04:50:06,358 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 04:50:06,359 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:50:06,359 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:50:06,360 INFO  L85        PathProgramCache]: Analyzing trace with hash -1655701969, now seen corresponding path program 1 times
[2023-12-22 04:50:06,373 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:50:06,373 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047557620]
[2023-12-22 04:50:06,373 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:50:06,373 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 04:50:06,373 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:50:06,374 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 04:50:06,375 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 04:50:07,346 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:50:07,361 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3503 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:50:07,379 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:50:07,589 INFO  L134       CoverageAnalysis]: Checked inductivity of 2885 backedges. 2400 proven. 0 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked.
[2023-12-22 04:50:07,589 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:50:07,589 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:50:07,589 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047557620]
[2023-12-22 04:50:07,590 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047557620] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:50:07,590 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:50:07,590 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:50:07,590 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481152985]
[2023-12-22 04:50:07,590 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:50:07,592 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:50:07,592 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:50:07,593 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:50:07,593 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:50:07,594 INFO  L87              Difference]: Start difference. First operand 426311 states and 430947 transitions. Second operand  has 3 states, 3 states have (on average 968.0) internal successors, (2904), 3 states have internal predecessors, (2904), 0 states have call successors, (0), 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 04:50:14,636 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:50:14,636 INFO  L93              Difference]: Finished difference Result 915543 states and 925539 transitions.
[2023-12-22 04:50:14,637 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:50:14,637 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 968.0) internal successors, (2904), 3 states have internal predecessors, (2904), 0 states have call successors, (0), 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 3387
[2023-12-22 04:50:14,638 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:50:15,287 INFO  L225             Difference]: With dead ends: 915543
[2023-12-22 04:50:15,287 INFO  L226             Difference]: Without dead ends: 490859
[2023-12-22 04:50:15,691 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3386 GetRequests, 3385 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 04:50:15,701 INFO  L413           NwaCegarLoop]: 1089 mSDtfsCounter, 1559 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 4530 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 5052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 4530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2023-12-22 04:50:15,701 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1559 Valid, 1234 Invalid, 5052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 4530 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time]
[2023-12-22 04:50:16,024 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 490859 states.