/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_label04.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 04:13:33,042 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 04:13:33,109 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 04:13:33,112 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 04:13:33,112 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 04:13:33,138 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 04:13:33,138 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 04:13:33,139 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 04:13:33,139 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 04:13:33,142 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 04:13:33,142 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 04:13:33,142 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 04:13:33,142 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 04:13:33,143 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 04:13:33,144 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 04:13:33,144 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 04:13:33,144 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 04:13:33,144 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 04:13:33,144 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 04:13:33,145 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 04:13:33,145 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 04:13:33,145 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 04:13:33,145 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 04:13:33,145 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 04:13:33,145 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 04:13:33,146 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 04:13:33,146 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 04:13:33,146 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 04:13:33,146 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 04:13:33,146 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 04:13:33,147 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 04:13:33,147 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 04:13:33,147 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 04:13:33,147 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 04:13:33,147 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 04:13:33,147 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 04:13:33,147 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 04:13:33,148 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 04:13:33,148 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 04:13:33,148 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 04:13:33,148 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 04:13:33,148 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 04:13:33,149 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 04:13:33,149 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 04:13:33,149 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 04:13:33,149 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 04:13:33,149 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 04:13:33,297 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 04:13:33,309 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 04:13:33,311 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 04:13:33,312 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 04:13:33,312 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 04:13:33,313 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label04.c
[2023-12-22 04:13:34,204 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 04:13:34,703 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 04:13:34,703 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label04.c
[2023-12-22 04:13:34,736 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ff4a53ee/fe5ff687d58847179fd781d2bd0f50fc/FLAG8743dd9ab
[2023-12-22 04:13:34,745 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ff4a53ee/fe5ff687d58847179fd781d2bd0f50fc
[2023-12-22 04:13:34,747 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 04:13:34,748 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 04:13:34,748 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 04:13:34,748 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 04:13:34,752 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 04:13:34,752 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:13:34" (1/1) ...
[2023-12-22 04:13:34,753 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fbd4251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:13:34, skipping insertion in model container
[2023-12-22 04:13:34,753 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:13:34" (1/1) ...
[2023-12-22 04:13:34,898 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 04:13:36,053 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_label04.c[382283,382296]
[2023-12-22 04:13:36,068 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 04:13:36,078 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 04:13:36,630 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_label04.c[382283,382296]
[2023-12-22 04:13:36,632 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 04:13:36,707 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 04:13:36,707 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:13:36 WrapperNode
[2023-12-22 04:13:36,708 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 04:13:36,709 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 04:13:36,709 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 04:13:36,709 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 04:13:36,713 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:13:36" (1/1) ...
[2023-12-22 04:13:36,783 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:13:36" (1/1) ...
[2023-12-22 04:13:37,008 INFO  L138                Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12345
[2023-12-22 04:13:37,008 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 04:13:37,008 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 04:13:37,009 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 04:13:37,009 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 04:13:37,016 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:13:36" (1/1) ...
[2023-12-22 04:13:37,016 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:13:36" (1/1) ...
[2023-12-22 04:13:37,056 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:13:36" (1/1) ...
[2023-12-22 04:13:37,225 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-22 04:13:37,225 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:13:36" (1/1) ...
[2023-12-22 04:13:37,226 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:13:36" (1/1) ...
[2023-12-22 04:13:37,452 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:13:36" (1/1) ...
[2023-12-22 04:13:37,512 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:13:36" (1/1) ...
[2023-12-22 04:13:37,531 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:13:36" (1/1) ...
[2023-12-22 04:13:37,553 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:13:36" (1/1) ...
[2023-12-22 04:13:37,653 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 04:13:37,669 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 04:13:37,669 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 04:13:37,669 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 04:13:37,670 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:13:36" (1/1) ...
[2023-12-22 04:13:37,673 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 04:13:37,681 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 04:13:37,742 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 04:13:37,759 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 04:13:37,786 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 04:13:37,786 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 04:13:37,786 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 04:13:37,787 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 04:13:37,901 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 04:13:37,903 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 04:13:44,978 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 04:13:45,061 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 04:13:45,061 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 04:13:45,061 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:13:45 BoogieIcfgContainer
[2023-12-22 04:13:45,061 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 04:13:45,063 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 04:13:45,064 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 04:13:45,066 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 04:13:45,066 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:13:34" (1/3) ...
[2023-12-22 04:13:45,067 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c65b28e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:13:45, skipping insertion in model container
[2023-12-22 04:13:45,067 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:13:36" (2/3) ...
[2023-12-22 04:13:45,067 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c65b28e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:13:45, skipping insertion in model container
[2023-12-22 04:13:45,067 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:13:45" (3/3) ...
[2023-12-22 04:13:45,068 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem05_label04.c
[2023-12-22 04:13:45,080 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 04:13:45,080 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 04:13:45,152 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 04:13:45,157 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;@b2a30dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 04:13:45,158 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 04:13:45,166 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 04:13:45,232 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1692
[2023-12-22 04:13:45,232 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:13:45,234 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:13:45,234 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:13:45,238 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:13:45,238 INFO  L85        PathProgramCache]: Analyzing trace with hash 873025895, now seen corresponding path program 1 times
[2023-12-22 04:13:45,266 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:13:45,267 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110564883]
[2023-12-22 04:13:45,267 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:13:45,267 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 04:13:45,268 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:13:45,270 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 04:13:45,277 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 04:13:45,861 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:13:45,869 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1740 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 04:13:45,890 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:13:45,961 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 04:13:45,961 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:13:45,961 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:13:45,962 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110564883]
[2023-12-22 04:13:45,962 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [110564883] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:13:45,962 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:13:45,962 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 04:13:45,963 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926669722]
[2023-12-22 04:13:45,964 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:13:45,984 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 04:13:45,984 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:13:46,017 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 04:13:46,017 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 04:13:46,023 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 845.5) internal successors, (1691), 2 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states 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 04:13:46,253 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:13:46,253 INFO  L93              Difference]: Finished difference Result 4245 states and 8043 transitions.
[2023-12-22 04:13:46,254 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 04:13:46,256 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 845.5) internal successors, (1691), 2 states have internal predecessors, (1691), 0 states have call successors, (0), 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 1691
[2023-12-22 04:13:46,261 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:13:46,281 INFO  L225             Difference]: With dead ends: 4245
[2023-12-22 04:13:46,281 INFO  L226             Difference]: Without dead ends: 2121
[2023-12-22 04:13:46,289 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1690 GetRequests, 1690 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 04:13:46,291 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 04:13:46,292 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 04:13:46,305 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2121 states.
[2023-12-22 04:13:46,377 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 2121.
[2023-12-22 04:13:46,381 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 04:13:46,385 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 3957 transitions.
[2023-12-22 04:13:46,386 INFO  L78                 Accepts]: Start accepts. Automaton has 2121 states and 3957 transitions. Word has length 1691
[2023-12-22 04:13:46,389 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:13:46,389 INFO  L495      AbstractCegarLoop]: Abstraction has 2121 states and 3957 transitions.
[2023-12-22 04:13:46,390 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 845.5) internal successors, (1691), 2 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states 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 04:13:46,390 INFO  L276                IsEmpty]: Start isEmpty. Operand 2121 states and 3957 transitions.
[2023-12-22 04:13:46,423 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1692
[2023-12-22 04:13:46,424 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:13:46,424 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:13:46,429 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-22 04:13:46,628 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 04:13:46,629 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:13:46,630 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:13:46,630 INFO  L85        PathProgramCache]: Analyzing trace with hash 526225960, now seen corresponding path program 1 times
[2023-12-22 04:13:46,645 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:13:46,645 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352228755]
[2023-12-22 04:13:46,645 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:13:46,646 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 04:13:46,646 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:13:46,647 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 04:13:46,700 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 04:13:47,140 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:13:47,147 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1740 conjuncts, 31 conjunts are in the unsatisfiable core
[2023-12-22 04:13:47,169 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:14:29,968 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 04:14:29,968 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:14:29,969 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:14:29,969 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352228755]
[2023-12-22 04:14:29,969 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352228755] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:14:29,969 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:14:29,969 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2023-12-22 04:14:29,969 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983745734]
[2023-12-22 04:14:29,969 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:14:29,971 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:14:29,972 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:14:29,973 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:14:29,973 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:14:29,974 INFO  L87              Difference]: Start difference. First operand 2121 states and 3957 transitions. Second operand  has 16 states, 16 states have (on average 105.6875) internal successors, (1691), 15 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states 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 04:14:42,019 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:14:42,020 INFO  L93              Difference]: Finished difference Result 5867 states and 11163 transitions.
[2023-12-22 04:14:42,020 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2023-12-22 04:14:42,021 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 105.6875) internal successors, (1691), 15 states have internal predecessors, (1691), 0 states have call successors, (0), 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 1691
[2023-12-22 04:14:42,041 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:14:42,062 INFO  L225             Difference]: With dead ends: 5867
[2023-12-22 04:14:42,062 INFO  L226             Difference]: Without dead ends: 3747
[2023-12-22 04:14:42,071 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1701 GetRequests, 1676 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 04:14:42,072 INFO  L413           NwaCegarLoop]: 2327 mSDtfsCounter, 8100 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 14129 mSolverCounterSat, 1618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8100 SdHoareTripleChecker+Valid, 2568 SdHoareTripleChecker+Invalid, 15747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1618 IncrementalHoareTripleChecker+Valid, 14129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time
[2023-12-22 04:14:42,072 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8100 Valid, 2568 Invalid, 15747 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1618 Valid, 14129 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time]
[2023-12-22 04:14:42,076 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3747 states.
[2023-12-22 04:14:42,160 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3747 to 3747.
[2023-12-22 04:14:42,164 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 04:14:42,168 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3747 states to 3747 states and 5588 transitions.
[2023-12-22 04:14:42,169 INFO  L78                 Accepts]: Start accepts. Automaton has 3747 states and 5588 transitions. Word has length 1691
[2023-12-22 04:14:42,170 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:14:42,170 INFO  L495      AbstractCegarLoop]: Abstraction has 3747 states and 5588 transitions.
[2023-12-22 04:14:42,171 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 105.6875) internal successors, (1691), 15 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states 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 04:14:42,171 INFO  L276                IsEmpty]: Start isEmpty. Operand 3747 states and 5588 transitions.
[2023-12-22 04:14:42,216 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1801
[2023-12-22 04:14:42,217 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:14:42,217 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:14:42,237 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 04:14:42,427 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 04:14:42,428 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:14:42,429 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:14:42,429 INFO  L85        PathProgramCache]: Analyzing trace with hash 940857134, now seen corresponding path program 1 times
[2023-12-22 04:14:42,437 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:14:42,437 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1872243332]
[2023-12-22 04:14:42,437 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:14:42,437 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 04:14:42,438 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:14:42,451 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 04:14:42,452 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 04:14:42,974 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:14:42,982 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1862 conjuncts, 29 conjunts are in the unsatisfiable core
[2023-12-22 04:14:43,005 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:15:51,176 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 04:15:51,176 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:15:51,176 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:15:51,176 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1872243332]
[2023-12-22 04:15:51,176 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1872243332] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:15:51,176 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:15:51,177 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2023-12-22 04:15:51,177 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531961686]
[2023-12-22 04:15:51,177 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:15:51,178 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:15:51,178 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:15:51,180 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:15:51,180 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:15:51,181 INFO  L87              Difference]: Start difference. First operand 3747 states and 5588 transitions. Second operand  has 16 states, 16 states have (on average 112.5) internal successors, (1800), 16 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:16:22,895 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:16:22,896 INFO  L93              Difference]: Finished difference Result 10832 states and 19277 transitions.
[2023-12-22 04:16:22,896 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. 
[2023-12-22 04:16:22,897 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 112.5) internal successors, (1800), 16 states have internal predecessors, (1800), 0 states have call successors, (0), 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 1800
[2023-12-22 04:16:22,906 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:16:22,927 INFO  L225             Difference]: With dead ends: 10832
[2023-12-22 04:16:22,927 INFO  L226             Difference]: Without dead ends: 8712
[2023-12-22 04:16:22,930 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1819 GetRequests, 1787 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=341, Invalid=781, Unknown=0, NotChecked=0, Total=1122
[2023-12-22 04:16:22,930 INFO  L413           NwaCegarLoop]: 3884 mSDtfsCounter, 11206 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 37534 mSolverCounterSat, 3038 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11206 SdHoareTripleChecker+Valid, 5050 SdHoareTripleChecker+Invalid, 40572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3038 IncrementalHoareTripleChecker+Valid, 37534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.5s IncrementalHoareTripleChecker+Time
[2023-12-22 04:16:22,931 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11206 Valid, 5050 Invalid, 40572 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3038 Valid, 37534 Invalid, 0 Unknown, 0 Unchecked, 29.5s Time]
[2023-12-22 04:16:22,936 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8712 states.
[2023-12-22 04:16:23,013 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8712 to 8708.
[2023-12-22 04:16:23,036 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8708 states, 8707 states have (on average 1.2628919260365223) internal successors, (10996), 8707 states have internal predecessors, (10996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:16:23,050 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8708 states to 8708 states and 10996 transitions.
[2023-12-22 04:16:23,051 INFO  L78                 Accepts]: Start accepts. Automaton has 8708 states and 10996 transitions. Word has length 1800
[2023-12-22 04:16:23,052 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:16:23,052 INFO  L495      AbstractCegarLoop]: Abstraction has 8708 states and 10996 transitions.
[2023-12-22 04:16:23,053 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 112.5) internal successors, (1800), 16 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:16:23,053 INFO  L276                IsEmpty]: Start isEmpty. Operand 8708 states and 10996 transitions.
[2023-12-22 04:16:23,080 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1837
[2023-12-22 04:16:23,080 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:16:23,081 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:16:23,089 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 04:16:23,289 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 04:16:23,290 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:16:23,291 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:16:23,291 INFO  L85        PathProgramCache]: Analyzing trace with hash -1190206235, now seen corresponding path program 1 times
[2023-12-22 04:16:23,299 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:16:23,299 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084022742]
[2023-12-22 04:16:23,300 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:16:23,300 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 04:16:23,300 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:16:23,302 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 04:16:23,303 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 04:16:23,811 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:16:23,819 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1913 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-22 04:16:23,839 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:16:53,805 INFO  L134       CoverageAnalysis]: Checked inductivity of 179 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 04:16:53,806 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:16:53,808 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:16:53,808 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084022742]
[2023-12-22 04:16:53,808 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084022742] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:16:53,809 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:16:53,809 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2023-12-22 04:16:53,809 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746166655]
[2023-12-22 04:16:53,809 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:16:53,825 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:16:53,827 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:16:53,829 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:16:53,829 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:16:53,829 INFO  L87              Difference]: Start difference. First operand 8708 states and 10996 transitions. Second operand  has 16 states, 16 states have (on average 114.75) internal successors, (1836), 15 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states 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 04:17:19,591 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:17:19,591 INFO  L93              Difference]: Finished difference Result 18684 states and 26083 transitions.
[2023-12-22 04:17:19,592 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2023-12-22 04:17:19,616 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 114.75) internal successors, (1836), 15 states have internal predecessors, (1836), 0 states have call successors, (0), 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 1836
[2023-12-22 04:17:19,617 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:17:19,649 INFO  L225             Difference]: With dead ends: 18684
[2023-12-22 04:17:19,649 INFO  L226             Difference]: Without dead ends: 9905
[2023-12-22 04:17:19,659 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1845 GetRequests, 1821 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=233, Invalid=417, Unknown=0, NotChecked=0, Total=650
[2023-12-22 04:17:19,661 INFO  L413           NwaCegarLoop]: 1065 mSDtfsCounter, 6726 mSDsluCounter, 2118 mSDsCounter, 0 mSdLazyCounter, 42343 mSolverCounterSat, 3812 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6726 SdHoareTripleChecker+Valid, 3183 SdHoareTripleChecker+Invalid, 46155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3812 IncrementalHoareTripleChecker+Valid, 42343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time
[2023-12-22 04:17:19,661 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6726 Valid, 3183 Invalid, 46155 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3812 Valid, 42343 Invalid, 0 Unknown, 0 Unchecked, 24.8s Time]
[2023-12-22 04:17:19,669 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9905 states.
[2023-12-22 04:17:19,738 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9905 to 9905.
[2023-12-22 04:17:19,747 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9905 states, 9904 states have (on average 1.2102180936995153) internal successors, (11986), 9904 states have internal predecessors, (11986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:17:19,762 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9905 states to 9905 states and 11986 transitions.
[2023-12-22 04:17:19,763 INFO  L78                 Accepts]: Start accepts. Automaton has 9905 states and 11986 transitions. Word has length 1836
[2023-12-22 04:17:19,764 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:17:19,764 INFO  L495      AbstractCegarLoop]: Abstraction has 9905 states and 11986 transitions.
[2023-12-22 04:17:19,764 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 114.75) internal successors, (1836), 15 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states 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 04:17:19,764 INFO  L276                IsEmpty]: Start isEmpty. Operand 9905 states and 11986 transitions.
[2023-12-22 04:17:19,797 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2071
[2023-12-22 04:17:19,798 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:17:19,798 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:17:19,805 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 04:17:20,003 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 04:17:20,003 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:17:20,005 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:17:20,005 INFO  L85        PathProgramCache]: Analyzing trace with hash 1866917244, now seen corresponding path program 1 times
[2023-12-22 04:17:20,014 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:17:20,014 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [185737474]
[2023-12-22 04:17:20,014 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:17:20,015 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 04:17:20,015 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:17:20,016 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 04:17:20,018 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 04:17:20,599 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:17:20,610 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2165 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-22 04:17:20,668 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:18:33,934 INFO  L134       CoverageAnalysis]: Checked inductivity of 556 backedges. 520 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2023-12-22 04:18:33,935 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:18:33,935 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:18:33,935 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [185737474]
[2023-12-22 04:18:33,935 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [185737474] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:18:33,935 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:18:33,935 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2023-12-22 04:18:33,936 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252944051]
[2023-12-22 04:18:33,936 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:18:33,937 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2023-12-22 04:18:33,937 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:18:33,939 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2023-12-22 04:18:33,939 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272
[2023-12-22 04:18:33,939 INFO  L87              Difference]: Start difference. First operand 9905 states and 11986 transitions. Second operand  has 17 states, 17 states have (on average 119.70588235294117) internal successors, (2035), 16 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:19:19,306 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:19:19,306 INFO  L93              Difference]: Finished difference Result 29634 states and 40102 transitions.
[2023-12-22 04:19:19,306 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. 
[2023-12-22 04:19:19,307 INFO  L78                 Accepts]: Start accepts. Automaton has  has 17 states, 17 states have (on average 119.70588235294117) internal successors, (2035), 16 states have internal predecessors, (2035), 0 states have call successors, (0), 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 2070
[2023-12-22 04:19:19,308 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:19:19,337 INFO  L225             Difference]: With dead ends: 29634
[2023-12-22 04:19:19,337 INFO  L226             Difference]: Without dead ends: 21355
[2023-12-22 04:19:19,344 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2093 GetRequests, 2054 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=465, Invalid=1175, Unknown=0, NotChecked=0, Total=1640
[2023-12-22 04:19:19,344 INFO  L413           NwaCegarLoop]: 580 mSDtfsCounter, 18416 mSDsluCounter, 1872 mSDsCounter, 0 mSdLazyCounter, 55822 mSolverCounterSat, 5237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18416 SdHoareTripleChecker+Valid, 2452 SdHoareTripleChecker+Invalid, 61059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5237 IncrementalHoareTripleChecker+Valid, 55822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.4s IncrementalHoareTripleChecker+Time
[2023-12-22 04:19:19,344 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [18416 Valid, 2452 Invalid, 61059 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5237 Valid, 55822 Invalid, 0 Unknown, 0 Unchecked, 42.4s Time]
[2023-12-22 04:19:19,356 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21355 states.
[2023-12-22 04:19:19,499 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21355 to 17892.
[2023-12-22 04:19:19,513 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17892 states, 17891 states have (on average 1.2190486836957128) internal successors, (21810), 17891 states have internal predecessors, (21810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:19:19,532 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17892 states to 17892 states and 21810 transitions.
[2023-12-22 04:19:19,532 INFO  L78                 Accepts]: Start accepts. Automaton has 17892 states and 21810 transitions. Word has length 2070
[2023-12-22 04:19:19,533 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:19:19,533 INFO  L495      AbstractCegarLoop]: Abstraction has 17892 states and 21810 transitions.
[2023-12-22 04:19:19,534 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 17 states have (on average 119.70588235294117) internal successors, (2035), 16 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:19:19,535 INFO  L276                IsEmpty]: Start isEmpty. Operand 17892 states and 21810 transitions.
[2023-12-22 04:19:19,577 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2098
[2023-12-22 04:19:19,579 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:19:19,583 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:19:19,590 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0
[2023-12-22 04:19:19,788 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:19:19,788 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:19:19,788 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:19:19,789 INFO  L85        PathProgramCache]: Analyzing trace with hash 731418815, now seen corresponding path program 1 times
[2023-12-22 04:19:19,797 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:19:19,797 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1039654283]
[2023-12-22 04:19:19,798 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:19:19,798 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:19:19,798 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:19:19,799 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:19:19,801 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2023-12-22 04:19:20,347 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:19:20,355 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:19:20,371 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:19:20,417 INFO  L134       CoverageAnalysis]: Checked inductivity of 663 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked.
[2023-12-22 04:19:20,417 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:19:20,417 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:19:20,417 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1039654283]
[2023-12-22 04:19:20,417 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1039654283] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:19:20,417 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:19:20,418 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:19:20,418 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712096785]
[2023-12-22 04:19:20,418 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:19:20,419 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:19:20,419 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:19:20,420 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:19:20,421 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:19:20,421 INFO  L87              Difference]: Start difference. First operand 17892 states and 21810 transitions. Second operand  has 3 states, 3 states have (on average 651.6666666666666) internal successors, (1955), 3 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:19:27,832 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:19:27,832 INFO  L93              Difference]: Finished difference Result 46131 states and 57731 transitions.
[2023-12-22 04:19:27,832 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:19:27,833 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 651.6666666666666) internal successors, (1955), 3 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2097
[2023-12-22 04:19:27,833 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:19:27,871 INFO  L225             Difference]: With dead ends: 46131
[2023-12-22 04:19:27,871 INFO  L226             Difference]: Without dead ends: 29866
[2023-12-22 04:19:27,886 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2096 GetRequests, 2095 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 04:19:27,887 INFO  L413           NwaCegarLoop]: 3791 mSDtfsCounter, 1833 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 5389 mSolverCounterSat, 1944 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1833 SdHoareTripleChecker+Valid, 4022 SdHoareTripleChecker+Invalid, 7333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1944 IncrementalHoareTripleChecker+Valid, 5389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time
[2023-12-22 04:19:27,887 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1833 Valid, 4022 Invalid, 7333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1944 Valid, 5389 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time]
[2023-12-22 04:19:27,910 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 29866 states.
[2023-12-22 04:19:28,161 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 29866 to 29806.
[2023-12-22 04:19:28,188 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 29806 states, 29805 states have (on average 1.1792652239557122) internal successors, (35148), 29805 states have internal predecessors, (35148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:19:28,221 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 29806 states to 29806 states and 35148 transitions.
[2023-12-22 04:19:28,221 INFO  L78                 Accepts]: Start accepts. Automaton has 29806 states and 35148 transitions. Word has length 2097
[2023-12-22 04:19:28,221 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:19:28,221 INFO  L495      AbstractCegarLoop]: Abstraction has 29806 states and 35148 transitions.
[2023-12-22 04:19:28,222 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 651.6666666666666) internal successors, (1955), 3 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:19:28,222 INFO  L276                IsEmpty]: Start isEmpty. Operand 29806 states and 35148 transitions.
[2023-12-22 04:19:28,281 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2113
[2023-12-22 04:19:28,281 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:19:28,282 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:19:28,302 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 04:19:28,487 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 04:19:28,487 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:19:28,487 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:19:28,488 INFO  L85        PathProgramCache]: Analyzing trace with hash 1605469050, now seen corresponding path program 1 times
[2023-12-22 04:19:28,496 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:19:28,497 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [230176536]
[2023-12-22 04:19:28,497 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:19:28,497 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:19:28,497 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:19:28,498 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 04:19:28,499 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 04:19:29,034 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:19:29,044 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2206 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-22 04:19:29,062 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:19:56,185 INFO  L134       CoverageAnalysis]: Checked inductivity of 598 backedges. 562 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2023-12-22 04:19:56,185 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:19:56,185 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:19:56,186 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [230176536]
[2023-12-22 04:19:56,186 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [230176536] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:19:56,186 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:19:56,186 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-22 04:19:56,186 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67090909]
[2023-12-22 04:19:56,186 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:19:56,188 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-22 04:19:56,188 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:19:56,189 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-22 04:19:56,190 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-12-22 04:19:56,190 INFO  L87              Difference]: Start difference. First operand 29806 states and 35148 transitions. Second operand  has 4 states, 4 states have (on average 519.25) internal successors, (2077), 4 states have internal predecessors, (2077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:04,957 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:20:04,958 INFO  L93              Difference]: Finished difference Result 71449 states and 86761 transitions.
[2023-12-22 04:20:04,958 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-22 04:20:04,959 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 519.25) internal successors, (2077), 4 states have internal predecessors, (2077), 0 states have call successors, (0), 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 2112
[2023-12-22 04:20:04,960 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:20:05,009 INFO  L225             Difference]: With dead ends: 71449
[2023-12-22 04:20:05,009 INFO  L226             Difference]: Without dead ends: 39173
[2023-12-22 04:20:05,040 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2111 GetRequests, 2109 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-12-22 04:20:05,041 INFO  L413           NwaCegarLoop]: 2134 mSDtfsCounter, 1718 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 9218 mSolverCounterSat, 2853 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 2413 SdHoareTripleChecker+Invalid, 12071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2853 IncrementalHoareTripleChecker+Valid, 9218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time
[2023-12-22 04:20:05,041 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 2413 Invalid, 12071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2853 Valid, 9218 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time]
[2023-12-22 04:20:05,067 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 39173 states.
[2023-12-22 04:20:05,476 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 39173 to 35183.
[2023-12-22 04:20:05,518 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 35183 states, 35182 states have (on average 1.0966971746916037) internal successors, (38584), 35182 states have internal predecessors, (38584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:05,559 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35183 states to 35183 states and 38584 transitions.
[2023-12-22 04:20:05,559 INFO  L78                 Accepts]: Start accepts. Automaton has 35183 states and 38584 transitions. Word has length 2112
[2023-12-22 04:20:05,560 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:20:05,560 INFO  L495      AbstractCegarLoop]: Abstraction has 35183 states and 38584 transitions.
[2023-12-22 04:20:05,560 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 519.25) internal successors, (2077), 4 states have internal predecessors, (2077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:05,560 INFO  L276                IsEmpty]: Start isEmpty. Operand 35183 states and 38584 transitions.
[2023-12-22 04:20:05,617 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2312
[2023-12-22 04:20:05,617 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:20:05,618 INFO  L195           NwaCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:20:05,623 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 04:20:05,823 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 04:20:05,823 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:20:05,824 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:20:05,824 INFO  L85        PathProgramCache]: Analyzing trace with hash 1581361800, now seen corresponding path program 1 times
[2023-12-22 04:20:05,834 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:20:05,834 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [651905541]
[2023-12-22 04:20:05,834 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:20:05,834 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:20:05,834 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:20:05,836 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 04:20:05,837 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 04:20:06,446 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:20:06,457 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2436 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:20:06,489 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:20:06,535 INFO  L134       CoverageAnalysis]: Checked inductivity of 1213 backedges. 661 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked.
[2023-12-22 04:20:06,535 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:20:06,535 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:20:06,536 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [651905541]
[2023-12-22 04:20:06,536 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [651905541] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:20:06,536 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:20:06,536 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:20:06,536 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137658218]
[2023-12-22 04:20:06,539 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:20:06,541 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:20:06,541 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:20:06,543 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:20:06,543 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:20:06,543 INFO  L87              Difference]: Start difference. First operand 35183 states and 38584 transitions. Second operand  has 3 states, 3 states have (on average 647.0) internal successors, (1941), 3 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:11,618 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:20:11,619 INFO  L93              Difference]: Finished difference Result 95924 states and 106000 transitions.
[2023-12-22 04:20:11,619 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:20:11,619 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 647.0) internal successors, (1941), 3 states have internal predecessors, (1941), 0 states have call successors, (0), 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 2311
[2023-12-22 04:20:11,620 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:20:11,688 INFO  L225             Difference]: With dead ends: 95924
[2023-12-22 04:20:11,688 INFO  L226             Difference]: Without dead ends: 62368
[2023-12-22 04:20:11,719 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2310 GetRequests, 2309 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 04:20:11,720 INFO  L413           NwaCegarLoop]: 3014 mSDtfsCounter, 1893 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 4584 mSolverCounterSat, 1032 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 3241 SdHoareTripleChecker+Invalid, 5616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1032 IncrementalHoareTripleChecker+Valid, 4584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time
[2023-12-22 04:20:11,720 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1893 Valid, 3241 Invalid, 5616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1032 Valid, 4584 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time]
[2023-12-22 04:20:11,765 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 62368 states.
[2023-12-22 04:20:12,118 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 62368 to 48774.
[2023-12-22 04:20:12,149 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 48774 states, 48773 states have (on average 1.0863592561458184) internal successors, (52985), 48773 states have internal predecessors, (52985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:12,538 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 48774 states to 48774 states and 52985 transitions.
[2023-12-22 04:20:12,538 INFO  L78                 Accepts]: Start accepts. Automaton has 48774 states and 52985 transitions. Word has length 2311
[2023-12-22 04:20:12,539 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:20:12,539 INFO  L495      AbstractCegarLoop]: Abstraction has 48774 states and 52985 transitions.
[2023-12-22 04:20:12,539 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 647.0) internal successors, (1941), 3 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:12,539 INFO  L276                IsEmpty]: Start isEmpty. Operand 48774 states and 52985 transitions.
[2023-12-22 04:20:12,614 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2324
[2023-12-22 04:20:12,614 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:20:12,615 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:20:12,620 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 04:20:12,819 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 04:20:12,820 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:20:12,821 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:20:12,821 INFO  L85        PathProgramCache]: Analyzing trace with hash 1719318058, now seen corresponding path program 1 times
[2023-12-22 04:20:13,044 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:20:13,045 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136189910]
[2023-12-22 04:20:13,045 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:20:13,045 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:20:13,045 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:20:13,047 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 04:20:13,049 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 04:20:13,710 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:20:13,719 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2447 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:20:13,732 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:20:13,778 INFO  L134       CoverageAnalysis]: Checked inductivity of 1273 backedges. 721 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked.
[2023-12-22 04:20:13,778 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:20:13,778 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:20:13,778 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136189910]
[2023-12-22 04:20:13,778 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [136189910] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:20:13,778 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:20:13,778 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:20:13,778 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752765915]
[2023-12-22 04:20:13,779 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:20:13,780 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:20:13,780 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:20:13,781 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:20:13,781 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:20:13,781 INFO  L87              Difference]: Start difference. First operand 48774 states and 52985 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 04:20:19,878 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:20:19,879 INFO  L93              Difference]: Finished difference Result 112976 states and 123585 transitions.
[2023-12-22 04:20:19,879 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:20:19,879 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 2323
[2023-12-22 04:20:19,880 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:20:19,944 INFO  L225             Difference]: With dead ends: 112976
[2023-12-22 04:20:19,944 INFO  L226             Difference]: Without dead ends: 65829
[2023-12-22 04:20:19,956 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2322 GetRequests, 2321 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 04:20:19,957 INFO  L413           NwaCegarLoop]: 3218 mSDtfsCounter, 1828 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 4975 mSolverCounterSat, 881 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1828 SdHoareTripleChecker+Valid, 3415 SdHoareTripleChecker+Invalid, 5856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 881 IncrementalHoareTripleChecker+Valid, 4975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time
[2023-12-22 04:20:19,957 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1828 Valid, 3415 Invalid, 5856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [881 Valid, 4975 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time]
[2023-12-22 04:20:19,997 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 65829 states.
[2023-12-22 04:20:20,456 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 65829 to 60672.
[2023-12-22 04:20:20,498 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 60672 states, 60671 states have (on average 1.0790328163372946) internal successors, (65466), 60671 states have internal predecessors, (65466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:20,771 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 60672 states to 60672 states and 65466 transitions.
[2023-12-22 04:20:20,771 INFO  L78                 Accepts]: Start accepts. Automaton has 60672 states and 65466 transitions. Word has length 2323
[2023-12-22 04:20:20,772 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:20:20,772 INFO  L495      AbstractCegarLoop]: Abstraction has 60672 states and 65466 transitions.
[2023-12-22 04:20:20,772 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 04:20:20,773 INFO  L276                IsEmpty]: Start isEmpty. Operand 60672 states and 65466 transitions.
[2023-12-22 04:20:20,857 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2368
[2023-12-22 04:20:20,857 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:20:20,858 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:20:20,863 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 (10)] Ended with exit code 0
[2023-12-22 04:20:21,059 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 04:20:21,060 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:20:21,201 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:20:21,202 INFO  L85        PathProgramCache]: Analyzing trace with hash 1683107527, now seen corresponding path program 1 times
[2023-12-22 04:20:21,215 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:20:21,215 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545776939]
[2023-12-22 04:20:21,215 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:20:21,215 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:20:21,216 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:20:21,218 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 04:20:21,248 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 04:20:22,075 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:20:22,088 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2506 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:20:22,101 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:20:22,163 INFO  L134       CoverageAnalysis]: Checked inductivity of 1507 backedges. 932 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked.
[2023-12-22 04:20:22,163 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:20:22,163 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:20:22,163 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1545776939]
[2023-12-22 04:20:22,163 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1545776939] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:20:22,164 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:20:22,164 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:20:22,164 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822175202]
[2023-12-22 04:20:22,164 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:20:22,165 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:20:22,165 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:20:22,167 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:20:22,167 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:20:22,167 INFO  L87              Difference]: Start difference. First operand 60672 states and 65466 transitions. Second operand  has 3 states, 3 states have (on average 658.3333333333334) internal successors, (1975), 3 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:27,898 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:20:27,898 INFO  L93              Difference]: Finished difference Result 136694 states and 148578 transitions.
[2023-12-22 04:20:27,899 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:20:27,899 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 658.3333333333334) internal successors, (1975), 3 states have internal predecessors, (1975), 0 states have call successors, (0), 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 2367
[2023-12-22 04:20:27,899 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:20:27,975 INFO  L225             Difference]: With dead ends: 136694
[2023-12-22 04:20:27,975 INFO  L226             Difference]: Without dead ends: 77649
[2023-12-22 04:20:27,994 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2366 GetRequests, 2365 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 04:20:27,994 INFO  L413           NwaCegarLoop]: 2930 mSDtfsCounter, 1898 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 4262 mSolverCounterSat, 785 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1898 SdHoareTripleChecker+Valid, 3268 SdHoareTripleChecker+Invalid, 5047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 785 IncrementalHoareTripleChecker+Valid, 4262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time
[2023-12-22 04:20:27,995 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1898 Valid, 3268 Invalid, 5047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [785 Valid, 4262 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time]
[2023-12-22 04:20:28,042 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 77649 states.
[2023-12-22 04:20:28,621 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 77649 to 77648.
[2023-12-22 04:20:28,679 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 77648 states, 77647 states have (on average 1.072597782271047) internal successors, (83284), 77647 states have internal predecessors, (83284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:28,778 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 77648 states to 77648 states and 83284 transitions.
[2023-12-22 04:20:28,778 INFO  L78                 Accepts]: Start accepts. Automaton has 77648 states and 83284 transitions. Word has length 2367
[2023-12-22 04:20:28,779 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:20:28,779 INFO  L495      AbstractCegarLoop]: Abstraction has 77648 states and 83284 transitions.
[2023-12-22 04:20:28,779 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 658.3333333333334) internal successors, (1975), 3 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:28,780 INFO  L276                IsEmpty]: Start isEmpty. Operand 77648 states and 83284 transitions.
[2023-12-22 04:20:28,872 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2461
[2023-12-22 04:20:28,872 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:20:28,873 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, 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, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:20:28,880 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 04:20:29,077 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 04:20:29,078 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:20:29,078 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:20:29,079 INFO  L85        PathProgramCache]: Analyzing trace with hash -1604032435, now seen corresponding path program 1 times
[2023-12-22 04:20:29,088 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:20:29,088 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692955609]
[2023-12-22 04:20:29,089 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:20:29,089 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:20:29,089 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:20:29,090 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 04:20:29,091 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 04:20:30,120 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:20:30,130 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2600 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:20:30,143 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:20:30,300 INFO  L134       CoverageAnalysis]: Checked inductivity of 1848 backedges. 1274 proven. 0 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked.
[2023-12-22 04:20:30,300 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:20:30,300 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:20:30,301 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [692955609]
[2023-12-22 04:20:30,301 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [692955609] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:20:30,301 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:20:30,301 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:20:30,301 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848474252]
[2023-12-22 04:20:30,301 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:20:30,302 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:20:30,302 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:20:30,304 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:20:30,304 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:20:30,305 INFO  L87              Difference]: Start difference. First operand 77648 states and 83284 transitions. Second operand  has 3 states, 3 states have (on average 689.6666666666666) internal successors, (2069), 3 states have internal predecessors, (2069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:35,846 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:20:35,846 INFO  L93              Difference]: Finished difference Result 216508 states and 233124 transitions.
[2023-12-22 04:20:35,846 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:20:35,847 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 689.6666666666666) internal successors, (2069), 3 states have internal predecessors, (2069), 0 states have call successors, (0), 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 2460
[2023-12-22 04:20:35,847 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:20:35,989 INFO  L225             Difference]: With dead ends: 216508
[2023-12-22 04:20:35,990 INFO  L226             Difference]: Without dead ends: 140487
[2023-12-22 04:20:36,027 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2459 GetRequests, 2458 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 04:20:36,028 INFO  L413           NwaCegarLoop]: 1417 mSDtfsCounter, 1691 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 4629 mSolverCounterSat, 1020 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 5649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1020 IncrementalHoareTripleChecker+Valid, 4629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time
[2023-12-22 04:20:36,028 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1691 Valid, 1638 Invalid, 5649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1020 Valid, 4629 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time]
[2023-12-22 04:20:36,124 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 140487 states.
[2023-12-22 04:20:37,377 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 140487 to 120099.
[2023-12-22 04:20:37,436 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 120099 states, 120098 states have (on average 1.0554880181185364) internal successors, (126762), 120098 states have internal predecessors, (126762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:37,572 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 120099 states to 120099 states and 126762 transitions.
[2023-12-22 04:20:37,573 INFO  L78                 Accepts]: Start accepts. Automaton has 120099 states and 126762 transitions. Word has length 2460
[2023-12-22 04:20:37,573 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:20:37,573 INFO  L495      AbstractCegarLoop]: Abstraction has 120099 states and 126762 transitions.
[2023-12-22 04:20:37,574 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 689.6666666666666) internal successors, (2069), 3 states have internal predecessors, (2069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:37,574 INFO  L276                IsEmpty]: Start isEmpty. Operand 120099 states and 126762 transitions.
[2023-12-22 04:20:37,875 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2547
[2023-12-22 04:20:37,875 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:20:37,876 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:20:37,880 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 (12)] Ended with exit code 0
[2023-12-22 04:20:38,080 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 04:20:38,081 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:20:38,081 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:20:38,081 INFO  L85        PathProgramCache]: Analyzing trace with hash -1530614239, now seen corresponding path program 1 times
[2023-12-22 04:20:38,093 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:20:38,094 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1933613574]
[2023-12-22 04:20:38,094 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:20:38,094 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:20:38,094 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:20:38,096 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 04:20:38,097 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 04:20:38,936 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:20:38,946 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2671 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:20:38,959 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:20:39,058 INFO  L134       CoverageAnalysis]: Checked inductivity of 1751 backedges. 1401 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked.
[2023-12-22 04:20:39,058 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:20:39,059 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:20:39,059 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1933613574]
[2023-12-22 04:20:39,059 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1933613574] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:20:39,059 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:20:39,059 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:20:39,059 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874156964]
[2023-12-22 04:20:39,059 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:20:39,060 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:20:39,061 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:20:39,062 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:20:39,062 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:20:39,062 INFO  L87              Difference]: Start difference. First operand 120099 states and 126762 transitions. Second operand  has 3 states, 3 states have (on average 744.6666666666666) internal successors, (2234), 3 states have internal predecessors, (2234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:44,895 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:20:44,895 INFO  L93              Difference]: Finished difference Result 309882 states and 327573 transitions.
[2023-12-22 04:20:44,895 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:20:44,896 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 744.6666666666666) internal successors, (2234), 3 states have internal predecessors, (2234), 0 states have call successors, (0), 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 2546
[2023-12-22 04:20:44,896 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:20:45,090 INFO  L225             Difference]: With dead ends: 309882
[2023-12-22 04:20:45,090 INFO  L226             Difference]: Without dead ends: 181168
[2023-12-22 04:20:45,127 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2545 GetRequests, 2544 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 04:20:45,127 INFO  L413           NwaCegarLoop]: 1313 mSDtfsCounter, 1996 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4268 mSolverCounterSat, 1229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 5497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1229 IncrementalHoareTripleChecker+Valid, 4268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time
[2023-12-22 04:20:45,127 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1996 Valid, 1420 Invalid, 5497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1229 Valid, 4268 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time]
[2023-12-22 04:20:45,381 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 181168 states.
[2023-12-22 04:20:46,776 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 181168 to 181165.
[2023-12-22 04:20:46,876 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 181165 states, 181164 states have (on average 1.0411229604115608) internal successors, (188614), 181164 states have internal predecessors, (188614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:47,412 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 181165 states to 181165 states and 188614 transitions.
[2023-12-22 04:20:47,413 INFO  L78                 Accepts]: Start accepts. Automaton has 181165 states and 188614 transitions. Word has length 2546
[2023-12-22 04:20:47,414 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:20:47,414 INFO  L495      AbstractCegarLoop]: Abstraction has 181165 states and 188614 transitions.
[2023-12-22 04:20:47,414 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 744.6666666666666) internal successors, (2234), 3 states have internal predecessors, (2234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:47,414 INFO  L276                IsEmpty]: Start isEmpty. Operand 181165 states and 188614 transitions.
[2023-12-22 04:20:47,768 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2798
[2023-12-22 04:20:47,768 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:20:47,769 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:20:47,774 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 04:20:47,970 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 04:20:47,970 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:20:47,970 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:20:47,971 INFO  L85        PathProgramCache]: Analyzing trace with hash 249910039, now seen corresponding path program 1 times
[2023-12-22 04:20:47,983 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:20:47,983 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499655775]
[2023-12-22 04:20:47,984 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:20:47,984 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:20:47,984 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:20:47,998 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 04:20:48,036 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 04:20:48,913 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:20:48,925 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2928 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:20:48,940 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:20:49,142 INFO  L134       CoverageAnalysis]: Checked inductivity of 2145 backedges. 1589 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked.
[2023-12-22 04:20:49,142 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:20:49,142 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:20:49,143 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499655775]
[2023-12-22 04:20:49,143 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499655775] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:20:49,143 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:20:49,143 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:20:49,143 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851688890]
[2023-12-22 04:20:49,143 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:20:49,144 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:20:49,145 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:20:49,146 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:20:49,146 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:20:49,146 INFO  L87              Difference]: Start difference. First operand 181165 states and 188614 transitions. Second operand  has 3 states, 3 states have (on average 807.6666666666666) internal successors, (2423), 3 states have internal predecessors, (2423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:55,662 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:20:55,662 INFO  L93              Difference]: Finished difference Result 437115 states and 456272 transitions.
[2023-12-22 04:20:55,662 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:20:55,663 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 807.6666666666666) internal successors, (2423), 3 states have internal predecessors, (2423), 0 states have call successors, (0), 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 2797
[2023-12-22 04:20:55,664 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:20:56,036 INFO  L225             Difference]: With dead ends: 437115
[2023-12-22 04:20:56,036 INFO  L226             Difference]: Without dead ends: 249057
[2023-12-22 04:20:56,144 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2796 GetRequests, 2795 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 04:20:56,145 INFO  L413           NwaCegarLoop]: 2750 mSDtfsCounter, 1817 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 4274 mSolverCounterSat, 1036 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1817 SdHoareTripleChecker+Valid, 2903 SdHoareTripleChecker+Invalid, 5310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1036 IncrementalHoareTripleChecker+Valid, 4274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time
[2023-12-22 04:20:56,145 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1817 Valid, 2903 Invalid, 5310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1036 Valid, 4274 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time]
[2023-12-22 04:20:56,336 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 249057 states.
[2023-12-22 04:20:58,268 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 249057 to 243957.
[2023-12-22 04:20:58,386 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 243957 states, 243956 states have (on average 1.0310957713686075) internal successors, (251542), 243956 states have internal predecessors, (251542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:58,888 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 243957 states to 243957 states and 251542 transitions.
[2023-12-22 04:20:58,888 INFO  L78                 Accepts]: Start accepts. Automaton has 243957 states and 251542 transitions. Word has length 2797
[2023-12-22 04:20:58,889 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:20:58,889 INFO  L495      AbstractCegarLoop]: Abstraction has 243957 states and 251542 transitions.
[2023-12-22 04:20:58,889 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 807.6666666666666) internal successors, (2423), 3 states have internal predecessors, (2423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:58,889 INFO  L276                IsEmpty]: Start isEmpty. Operand 243957 states and 251542 transitions.
[2023-12-22 04:20:59,307 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2831
[2023-12-22 04:20:59,307 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:20:59,308 INFO  L195           NwaCegarLoop]: trace histogram [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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:20:59,314 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0
[2023-12-22 04:20:59,513 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 04:20:59,514 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:20:59,514 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:20:59,515 INFO  L85        PathProgramCache]: Analyzing trace with hash 1448796146, now seen corresponding path program 1 times
[2023-12-22 04:20:59,526 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:20:59,526 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840179548]
[2023-12-22 04:20:59,526 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:20:59,526 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:20:59,526 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:20:59,527 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 04:20:59,533 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 (15)] Waiting until timeout for monitored process
[2023-12-22 04:21:00,368 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:21:00,383 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2987 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:21:00,399 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:21:00,433 INFO  L134       CoverageAnalysis]: Checked inductivity of 2340 backedges. 1573 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked.
[2023-12-22 04:21:00,433 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:21:00,434 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:21:00,434 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840179548]
[2023-12-22 04:21:00,434 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1840179548] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:21:00,434 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:21:00,434 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:21:00,434 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554815005]
[2023-12-22 04:21:00,434 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:21:00,436 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:21:00,436 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:21:00,437 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:21:00,437 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:21:00,437 INFO  L87              Difference]: Start difference. First operand 243957 states and 251542 transitions. Second operand  has 3 states, 3 states have (on average 755.6666666666666) internal successors, (2267), 3 states have internal predecessors, (2267), 0 states have call successors, (0), 0 states 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 04:21:06,983 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:21:06,983 INFO  L93              Difference]: Finished difference Result 549182 states and 566955 transitions.
[2023-12-22 04:21:06,983 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:21:06,984 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 755.6666666666666) internal successors, (2267), 3 states have internal predecessors, (2267), 0 states have call successors, (0), 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 2830
[2023-12-22 04:21:06,985 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:21:07,412 INFO  L225             Difference]: With dead ends: 549182
[2023-12-22 04:21:07,412 INFO  L226             Difference]: Without dead ends: 303442
[2023-12-22 04:21:07,721 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2829 GetRequests, 2828 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 04:21:07,721 INFO  L413           NwaCegarLoop]: 2902 mSDtfsCounter, 1815 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 4760 mSolverCounterSat, 619 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1815 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 5379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 619 IncrementalHoareTripleChecker+Valid, 4760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2023-12-22 04:21:07,721 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1815 Valid, 3073 Invalid, 5379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [619 Valid, 4760 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time]
[2023-12-22 04:21:07,911 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 303442 states.
[2023-12-22 04:21:10,377 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 303442 to 291491.
[2023-12-22 04:21:10,504 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 291491 states, 291490 states have (on average 1.0295653367182407) internal successors, (300108), 291490 states have internal predecessors, (300108), 0 states have call successors, (0), 0 states 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 04:21:11,129 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 291491 states to 291491 states and 300108 transitions.
[2023-12-22 04:21:11,129 INFO  L78                 Accepts]: Start accepts. Automaton has 291491 states and 300108 transitions. Word has length 2830
[2023-12-22 04:21:11,130 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:21:11,130 INFO  L495      AbstractCegarLoop]: Abstraction has 291491 states and 300108 transitions.
[2023-12-22 04:21:11,131 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 755.6666666666666) internal successors, (2267), 3 states have internal predecessors, (2267), 0 states have call successors, (0), 0 states 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 04:21:11,131 INFO  L276                IsEmpty]: Start isEmpty. Operand 291491 states and 300108 transitions.
[2023-12-22 04:21:11,344 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2888
[2023-12-22 04:21:11,344 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:21:11,345 INFO  L195           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:21:11,351 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 (15)] Ended with exit code 0
[2023-12-22 04:21:11,550 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 04:21:11,551 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:21:11,551 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:21:11,552 INFO  L85        PathProgramCache]: Analyzing trace with hash 128641992, now seen corresponding path program 1 times
[2023-12-22 04:21:11,563 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:21:11,563 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371731974]
[2023-12-22 04:21:11,563 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:21:11,563 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 04:21:11,563 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:21:11,564 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 04:21:11,566 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 04:21:12,551 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:21:12,562 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3040 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:21:12,578 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:21:13,601 INFO  L134       CoverageAnalysis]: Checked inductivity of 2893 backedges. 2217 proven. 0 refuted. 0 times theorem prover too weak. 676 trivial. 0 not checked.
[2023-12-22 04:21:13,602 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:21:13,602 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:21:13,602 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371731974]
[2023-12-22 04:21:13,602 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [371731974] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:21:13,602 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:21:13,602 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:21:13,602 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941557293]
[2023-12-22 04:21:13,602 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:21:13,604 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:21:13,604 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:21:13,605 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:21:13,605 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:21:13,605 INFO  L87              Difference]: Start difference. First operand 291491 states and 300108 transitions. Second operand  has 3 states, 3 states have (on average 808.0) internal successors, (2424), 3 states have internal predecessors, (2424), 0 states have call successors, (0), 0 states 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 04:21:19,478 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:21:19,478 INFO  L93              Difference]: Finished difference Result 601733 states and 619432 transitions.
[2023-12-22 04:21:19,478 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:21:19,479 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 808.0) internal successors, (2424), 3 states have internal predecessors, (2424), 0 states have call successors, (0), 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 2887
[2023-12-22 04:21:19,480 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:21:20,297 INFO  L225             Difference]: With dead ends: 601733
[2023-12-22 04:21:20,298 INFO  L226             Difference]: Without dead ends: 308467
[2023-12-22 04:21:20,429 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2886 GetRequests, 2885 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 04:21:20,430 INFO  L413           NwaCegarLoop]: 2834 mSDtfsCounter, 1227 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 4470 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 3013 SdHoareTripleChecker+Invalid, 4734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 4470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time
[2023-12-22 04:21:20,430 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 3013 Invalid, 4734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 4470 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time]
[2023-12-22 04:21:20,717 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 308467 states.
[2023-12-22 04:21:23,511 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 308467 to 306768.
[2023-12-22 04:21:23,653 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 306768 states, 306767 states have (on average 1.0274899190590905) internal successors, (315200), 306767 states have internal predecessors, (315200), 0 states have call successors, (0), 0 states 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 04:21:24,538 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 306768 states to 306768 states and 315200 transitions.
[2023-12-22 04:21:24,538 INFO  L78                 Accepts]: Start accepts. Automaton has 306768 states and 315200 transitions. Word has length 2887
[2023-12-22 04:21:24,547 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:21:24,547 INFO  L495      AbstractCegarLoop]: Abstraction has 306768 states and 315200 transitions.
[2023-12-22 04:21:24,548 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 808.0) internal successors, (2424), 3 states have internal predecessors, (2424), 0 states have call successors, (0), 0 states 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 04:21:24,548 INFO  L276                IsEmpty]: Start isEmpty. Operand 306768 states and 315200 transitions.
[2023-12-22 04:21:24,904 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3006
[2023-12-22 04:21:24,904 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:21:24,905 INFO  L195           NwaCegarLoop]: trace histogram [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, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:24,913 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 04:21:25,110 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 04:21:25,111 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:21:25,112 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:21:25,112 INFO  L85        PathProgramCache]: Analyzing trace with hash -1721723826, now seen corresponding path program 1 times
[2023-12-22 04:21:25,128 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:21:25,128 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294445695]
[2023-12-22 04:21:25,128 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:21:25,128 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 04:21:25,129 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:21:25,130 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 04:21:25,160 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 04:21:26,252 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:21:26,266 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3175 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:21:26,282 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:21:26,345 INFO  L134       CoverageAnalysis]: Checked inductivity of 3291 backedges. 2228 proven. 0 refuted. 0 times theorem prover too weak. 1063 trivial. 0 not checked.
[2023-12-22 04:21:26,345 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:21:26,345 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:21:26,345 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294445695]
[2023-12-22 04:21:26,345 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294445695] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:21:26,345 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:21:26,346 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:21:26,346 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944760358]
[2023-12-22 04:21:26,346 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:21:26,347 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:21:26,347 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:21:26,349 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:21:26,349 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:21:26,349 INFO  L87              Difference]: Start difference. First operand 306768 states and 315200 transitions. Second operand  has 3 states, 3 states have (on average 766.6666666666666) internal successors, (2300), 3 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states 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 04:21:33,504 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:21:33,505 INFO  L93              Difference]: Finished difference Result 703615 states and 723621 transitions.
[2023-12-22 04:21:33,505 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:21:33,505 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 766.6666666666666) internal successors, (2300), 3 states have internal predecessors, (2300), 0 states have call successors, (0), 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 3005
[2023-12-22 04:21:33,506 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:21:34,176 INFO  L225             Difference]: With dead ends: 703615
[2023-12-22 04:21:34,176 INFO  L226             Difference]: Without dead ends: 396775
[2023-12-22 04:21:34,597 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3004 GetRequests, 3003 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 04:21:34,598 INFO  L413           NwaCegarLoop]: 2887 mSDtfsCounter, 1713 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 4512 mSolverCounterSat, 739 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1713 SdHoareTripleChecker+Valid, 3078 SdHoareTripleChecker+Invalid, 5251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 739 IncrementalHoareTripleChecker+Valid, 4512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time
[2023-12-22 04:21:34,598 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1713 Valid, 3078 Invalid, 5251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [739 Valid, 4512 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time]
[2023-12-22 04:21:34,880 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 396775 states.
[2023-12-22 04:21:38,202 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 396775 to 384871.
[2023-12-22 04:21:38,486 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 384871 states, 384870 states have (on average 1.0229895808974458) internal successors, (393718), 384870 states have internal predecessors, (393718), 0 states have call successors, (0), 0 states 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 04:21:39,180 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 384871 states to 384871 states and 393718 transitions.
[2023-12-22 04:21:39,180 INFO  L78                 Accepts]: Start accepts. Automaton has 384871 states and 393718 transitions. Word has length 3005
[2023-12-22 04:21:39,181 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:21:39,181 INFO  L495      AbstractCegarLoop]: Abstraction has 384871 states and 393718 transitions.
[2023-12-22 04:21:39,182 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 766.6666666666666) internal successors, (2300), 3 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states 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 04:21:39,182 INFO  L276                IsEmpty]: Start isEmpty. Operand 384871 states and 393718 transitions.
[2023-12-22 04:21:39,505 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3057
[2023-12-22 04:21:39,505 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:21:39,506 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:39,511 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 04:21:39,711 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 04:21:39,712 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:21:39,712 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:21:39,712 INFO  L85        PathProgramCache]: Analyzing trace with hash 915638628, now seen corresponding path program 1 times
[2023-12-22 04:21:39,724 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:21:39,724 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369656828]
[2023-12-22 04:21:39,724 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:21:39,724 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 04:21:39,725 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:21:39,725 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 04:21:39,728 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 04:21:40,742 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:21:40,758 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3187 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-22 04:21:40,777 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:21:49,588 INFO  L134       CoverageAnalysis]: Checked inductivity of 2725 backedges. 1166 proven. 1254 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked.
[2023-12-22 04:21:49,588 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 04:21:59,009 INFO  L134       CoverageAnalysis]: Checked inductivity of 2725 backedges. 1166 proven. 1254 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked.
[2023-12-22 04:21:59,009 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:21:59,009 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369656828]
[2023-12-22 04:21:59,009 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369656828] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-22 04:21:59,009 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-22 04:21:59,010 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7
[2023-12-22 04:21:59,010 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74698994]
[2023-12-22 04:21:59,010 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-22 04:21:59,012 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-22 04:21:59,012 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:21:59,014 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-22 04:21:59,014 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2023-12-22 04:21:59,014 INFO  L87              Difference]: Start difference. First operand 384871 states and 393718 transitions. Second operand  has 7 states, 7 states have (on average 451.14285714285717) internal successors, (3158), 7 states have internal predecessors, (3158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:22:16,699 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:22:16,699 INFO  L93              Difference]: Finished difference Result 852102 states and 872370 transitions.
[2023-12-22 04:22:16,699 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2023-12-22 04:22:16,700 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 451.14285714285717) internal successors, (3158), 7 states have internal predecessors, (3158), 0 states have call successors, (0), 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 3056
[2023-12-22 04:22:16,701 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:22:17,874 INFO  L225             Difference]: With dead ends: 852102
[2023-12-22 04:22:17,874 INFO  L226             Difference]: Without dead ends: 468856
[2023-12-22 04:22:18,023 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6121 GetRequests, 6110 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156
[2023-12-22 04:22:18,023 INFO  L413           NwaCegarLoop]: 325 mSDtfsCounter, 11494 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 18134 mSolverCounterSat, 2678 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11494 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 20812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2678 IncrementalHoareTripleChecker+Valid, 18134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time
[2023-12-22 04:22:18,024 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11494 Valid, 839 Invalid, 20812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2678 Valid, 18134 Invalid, 0 Unknown, 0 Unchecked, 15.4s Time]
[2023-12-22 04:22:18,383 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 468856 states.
[2023-12-22 04:22:23,183 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 468856 to 427329.
[2023-12-22 04:22:23,367 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 427329 states, 427328 states have (on average 1.0183395424591883) internal successors, (435165), 427328 states have internal predecessors, (435165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:22:24,389 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 427329 states to 427329 states and 435165 transitions.
[2023-12-22 04:22:24,389 INFO  L78                 Accepts]: Start accepts. Automaton has 427329 states and 435165 transitions. Word has length 3056
[2023-12-22 04:22:24,390 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:22:24,390 INFO  L495      AbstractCegarLoop]: Abstraction has 427329 states and 435165 transitions.
[2023-12-22 04:22:24,391 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 451.14285714285717) internal successors, (3158), 7 states have internal predecessors, (3158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:22:24,391 INFO  L276                IsEmpty]: Start isEmpty. Operand 427329 states and 435165 transitions.
[2023-12-22 04:22:25,085 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3448
[2023-12-22 04:22:25,085 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:22:25,087 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:22:25,092 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 04:22:25,292 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 04:22:25,292 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:22:25,293 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:22:25,293 INFO  L85        PathProgramCache]: Analyzing trace with hash -812396555, now seen corresponding path program 1 times
[2023-12-22 04:22:25,307 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:22:25,307 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213498118]
[2023-12-22 04:22:25,307 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:22:25,307 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:22:25,307 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:22:25,308 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 04:22:25,309 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 04:22:26,292 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:22:26,307 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3587 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:22:26,325 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:22:26,405 INFO  L134       CoverageAnalysis]: Checked inductivity of 2941 backedges. 1832 proven. 0 refuted. 0 times theorem prover too weak. 1109 trivial. 0 not checked.
[2023-12-22 04:22:26,405 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:22:26,406 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:22:26,406 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [213498118]
[2023-12-22 04:22:26,406 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [213498118] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:22:26,406 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:22:26,406 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:22:26,408 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530434805]
[2023-12-22 04:22:26,408 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:22:26,409 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:22:26,410 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:22:26,411 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:22:26,411 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:22:26,412 INFO  L87              Difference]: Start difference. First operand 427329 states and 435165 transitions. Second operand  has 3 states, 3 states have (on average 940.0) internal successors, (2820), 3 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:22:33,978 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:22:33,978 INFO  L93              Difference]: Finished difference Result 871716 states and 887874 transitions.
[2023-12-22 04:22:33,978 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:22:33,979 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 940.0) internal successors, (2820), 3 states have internal predecessors, (2820), 0 states have call successors, (0), 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 3447
[2023-12-22 04:22:33,979 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:22:34,809 INFO  L225             Difference]: With dead ends: 871716
[2023-12-22 04:22:34,810 INFO  L226             Difference]: Without dead ends: 444315
[2023-12-22 04:22:34,928 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3446 GetRequests, 3445 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 04:22:34,928 INFO  L413           NwaCegarLoop]: 2877 mSDtfsCounter, 1690 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 4434 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 3056 SdHoareTripleChecker+Invalid, 4819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 4434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time
[2023-12-22 04:22:34,929 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 3056 Invalid, 4819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 4434 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time]
[2023-12-22 04:22:35,202 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 444315 states.
[2023-12-22 04:22:38,632 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 444315 to 442610.
[2023-12-22 04:22:38,839 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 442610 states, 442609 states have (on average 1.0177108915543969) internal successors, (450448), 442609 states have internal predecessors, (450448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:22:40,094 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 442610 states to 442610 states and 450448 transitions.
[2023-12-22 04:22:40,094 INFO  L78                 Accepts]: Start accepts. Automaton has 442610 states and 450448 transitions. Word has length 3447
[2023-12-22 04:22:40,095 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:22:40,096 INFO  L495      AbstractCegarLoop]: Abstraction has 442610 states and 450448 transitions.
[2023-12-22 04:22:40,096 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 940.0) internal successors, (2820), 3 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:22:40,096 INFO  L276                IsEmpty]: Start isEmpty. Operand 442610 states and 450448 transitions.
[2023-12-22 04:22:40,717 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3612
[2023-12-22 04:22:40,717 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:22:40,719 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:22:40,728 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 04:22:40,928 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 04:22:40,928 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:22:40,929 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:22:40,929 INFO  L85        PathProgramCache]: Analyzing trace with hash -1121859618, now seen corresponding path program 1 times
[2023-12-22 04:22:40,945 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:22:40,946 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [749708568]
[2023-12-22 04:22:40,946 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:22:40,946 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:22:40,946 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:22:40,947 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 04:22:41,002 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 04:22:42,184 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:22:42,200 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3759 conjuncts, 16 conjunts are in the unsatisfiable core
[2023-12-22 04:22:42,223 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:22:56,589 INFO  L134       CoverageAnalysis]: Checked inductivity of 4387 backedges. 3790 proven. 41 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked.
[2023-12-22 04:22:56,590 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 04:23:09,565 INFO  L134       CoverageAnalysis]: Checked inductivity of 4387 backedges. 3790 proven. 41 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked.
[2023-12-22 04:23:09,565 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:23:09,565 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [749708568]
[2023-12-22 04:23:09,566 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [749708568] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-22 04:23:09,566 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-22 04:23:09,566 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10
[2023-12-22 04:23:09,566 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704101371]
[2023-12-22 04:23:09,566 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-22 04:23:09,570 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2023-12-22 04:23:09,570 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:23:09,572 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2023-12-22 04:23:09,572 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90
[2023-12-22 04:23:09,572 INFO  L87              Difference]: Start difference. First operand 442610 states and 450448 transitions. Second operand  has 10 states, 10 states have (on average 325.9) internal successors, (3259), 10 states have internal predecessors, (3259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:23:31,904 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:23:31,904 INFO  L93              Difference]: Finished difference Result 943776 states and 960496 transitions.
[2023-12-22 04:23:31,905 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. 
[2023-12-22 04:23:31,905 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 325.9) internal successors, (3259), 10 states have internal predecessors, (3259), 0 states have call successors, (0), 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 3611
[2023-12-22 04:23:31,906 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:23:32,577 INFO  L225             Difference]: With dead ends: 943776
[2023-12-22 04:23:32,577 INFO  L226             Difference]: Without dead ends: 502793
[2023-12-22 04:23:32,717 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7248 GetRequests, 7220 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=238, Invalid=632, Unknown=0, NotChecked=0, Total=870
[2023-12-22 04:23:32,717 INFO  L413           NwaCegarLoop]: 461 mSDtfsCounter, 19340 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 25097 mSolverCounterSat, 3407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19340 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 28504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3407 IncrementalHoareTripleChecker+Valid, 25097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time
[2023-12-22 04:23:32,718 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [19340 Valid, 1052 Invalid, 28504 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3407 Valid, 25097 Invalid, 0 Unknown, 0 Unchecked, 18.5s Time]
[2023-12-22 04:23:33,410 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 502793 states.
[2023-12-22 04:23:38,422 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 502793 to 452799.
[2023-12-22 04:23:38,784 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 452799 states, 452798 states have (on average 1.0171378848846506) internal successors, (460558), 452798 states have internal predecessors, (460558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:23:39,650 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 452799 states to 452799 states and 460558 transitions.
[2023-12-22 04:23:39,651 INFO  L78                 Accepts]: Start accepts. Automaton has 452799 states and 460558 transitions. Word has length 3611
[2023-12-22 04:23:39,651 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:23:39,651 INFO  L495      AbstractCegarLoop]: Abstraction has 452799 states and 460558 transitions.
[2023-12-22 04:23:39,652 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 325.9) internal successors, (3259), 10 states have internal predecessors, (3259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:23:39,652 INFO  L276                IsEmpty]: Start isEmpty. Operand 452799 states and 460558 transitions.
[2023-12-22 04:23:40,224 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3697
[2023-12-22 04:23:40,224 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:23:40,225 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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[2023-12-22 04:23:40,231 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 (20)] Ended with exit code 0
[2023-12-22 04:23:40,431 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 04:23:40,432 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:23:40,432 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:23:40,433 INFO  L85        PathProgramCache]: Analyzing trace with hash -1902447014, now seen corresponding path program 1 times
[2023-12-22 04:23:40,447 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:23:40,448 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570630307]
[2023-12-22 04:23:40,448 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:23:40,448 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:23:40,448 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:23:40,449 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 04:23:40,451 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process