/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_label40.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 04:39:07,853 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 04:39:07,911 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 04:39:07,915 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 04:39:07,916 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 04:39:07,940 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 04:39:07,940 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 04:39:07,940 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 04:39:07,941 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 04:39:07,944 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 04:39:07,944 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 04:39:07,944 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 04:39:07,944 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 04:39:07,945 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 04:39:07,945 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 04:39:07,946 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 04:39:07,946 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 04:39:07,946 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 04:39:07,946 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 04:39:07,947 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 04:39:07,947 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 04:39:07,947 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 04:39:07,947 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 04:39:07,948 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 04:39:07,948 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 04:39:07,948 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 04:39:07,948 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 04:39:07,948 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 04:39:07,948 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 04:39:07,949 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 04:39:07,949 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 04:39:07,950 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 04:39:07,950 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 04:39:07,950 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 04:39:07,950 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 04:39:07,950 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 04:39:07,950 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 04:39:07,951 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 04:39:07,951 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 04:39:07,951 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 04:39:07,951 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 04:39:07,951 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 04:39:07,951 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 04:39:07,951 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 04:39:07,952 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 04:39:07,952 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 04:39:07,953 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 04:39:08,158 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 04:39:08,184 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 04:39:08,186 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 04:39:08,186 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 04:39:08,188 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 04:39:08,190 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label40.c
[2023-12-22 04:39:09,314 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 04:39:09,767 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 04:39:09,768 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label40.c
[2023-12-22 04:39:09,807 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ff317e2/148cbce021aa40d789ee2886a426eed0/FLAG6cbe870cc
[2023-12-22 04:39:09,819 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ff317e2/148cbce021aa40d789ee2886a426eed0
[2023-12-22 04:39:09,821 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 04:39:09,822 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 04:39:09,824 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 04:39:09,824 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 04:39:09,827 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 04:39:09,827 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:39:09" (1/1) ...
[2023-12-22 04:39:09,828 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9c73236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:39:09, skipping insertion in model container
[2023-12-22 04:39:09,828 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:39:09" (1/1) ...
[2023-12-22 04:39:09,984 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 04:39:11,415 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_label40.c[376726,376739]
[2023-12-22 04:39:11,434 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 04:39:11,444 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 04:39:12,084 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_label40.c[376726,376739]
[2023-12-22 04:39:12,090 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 04:39:12,126 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 04:39:12,126 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:39:12 WrapperNode
[2023-12-22 04:39:12,126 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 04:39:12,128 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 04:39:12,128 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 04:39:12,128 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 04:39:12,132 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:39:12" (1/1) ...
[2023-12-22 04:39:12,187 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:39:12" (1/1) ...
[2023-12-22 04:39:12,528 INFO  L138                Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12345
[2023-12-22 04:39:12,528 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 04:39:12,529 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 04:39:12,529 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 04:39:12,529 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 04:39:12,536 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:39:12" (1/1) ...
[2023-12-22 04:39:12,537 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:39:12" (1/1) ...
[2023-12-22 04:39:12,592 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:39:12" (1/1) ...
[2023-12-22 04:39:12,658 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 04:39:12,658 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:39:12" (1/1) ...
[2023-12-22 04:39:12,659 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:39:12" (1/1) ...
[2023-12-22 04:39:12,739 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:39:12" (1/1) ...
[2023-12-22 04:39:12,929 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:39:12" (1/1) ...
[2023-12-22 04:39:12,962 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:39:12" (1/1) ...
[2023-12-22 04:39:13,006 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:39:12" (1/1) ...
[2023-12-22 04:39:13,039 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 04:39:13,040 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 04:39:13,040 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 04:39:13,041 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 04:39:13,041 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:39:12" (1/1) ...
[2023-12-22 04:39:13,045 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 04:39:13,052 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 04:39:13,099 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 04:39:13,124 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 04:39:13,142 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 04:39:13,142 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 04:39:13,143 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 04:39:13,144 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 04:39:13,223 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 04:39:13,224 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 04:39:20,425 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 04:39:20,476 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 04:39:20,476 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 04:39:20,476 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:39:20 BoogieIcfgContainer
[2023-12-22 04:39:20,476 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 04:39:20,478 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 04:39:20,478 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 04:39:20,480 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 04:39:20,480 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:39:09" (1/3) ...
[2023-12-22 04:39:20,481 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b25bd80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:39:20, skipping insertion in model container
[2023-12-22 04:39:20,481 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:39:12" (2/3) ...
[2023-12-22 04:39:20,481 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b25bd80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:39:20, skipping insertion in model container
[2023-12-22 04:39:20,481 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:39:20" (3/3) ...
[2023-12-22 04:39:20,482 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem05_label40.c
[2023-12-22 04:39:20,492 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 04:39:20,493 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 04:39:20,553 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 04:39:20,559 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;@110cbbd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 04:39:20,560 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 04:39:20,570 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 04:39:20,649 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1651
[2023-12-22 04:39:20,649 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:39:20,651 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]
[2023-12-22 04:39:20,651 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:39:20,655 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:39:20,655 INFO  L85        PathProgramCache]: Analyzing trace with hash 1666239369, now seen corresponding path program 1 times
[2023-12-22 04:39:20,685 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:39:20,685 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1036050338]
[2023-12-22 04:39:20,686 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:39:20,686 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:39:20,686 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:39:20,688 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 04:39:20,709 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 04:39:21,330 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:39:21,338 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1699 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 04:39:21,377 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:39:21,454 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 04:39:21,455 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:39:21,455 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:39:21,455 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1036050338]
[2023-12-22 04:39:21,456 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1036050338] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:39:21,456 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:39:21,456 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 04:39:21,457 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972658835]
[2023-12-22 04:39:21,458 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:39:21,463 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 04:39:21,464 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:39:21,483 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 04:39:21,484 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 04:39:21,491 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 825.0) internal successors, (1650), 2 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:39:21,715 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:39:21,715 INFO  L93              Difference]: Finished difference Result 4245 states and 8043 transitions.
[2023-12-22 04:39:21,732 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 04:39:21,734 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 825.0) internal successors, (1650), 2 states have internal predecessors, (1650), 0 states have call successors, (0), 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 1650
[2023-12-22 04:39:21,738 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:39:21,765 INFO  L225             Difference]: With dead ends: 4245
[2023-12-22 04:39:21,765 INFO  L226             Difference]: Without dead ends: 2121
[2023-12-22 04:39:21,773 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1649 GetRequests, 1649 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 04:39:21,776 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 04:39:21,777 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 04:39:21,791 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2121 states.
[2023-12-22 04:39:21,854 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 2121.
[2023-12-22 04:39:21,860 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 04:39:21,866 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 3957 transitions.
[2023-12-22 04:39:21,868 INFO  L78                 Accepts]: Start accepts. Automaton has 2121 states and 3957 transitions. Word has length 1650
[2023-12-22 04:39:21,872 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:39:21,872 INFO  L495      AbstractCegarLoop]: Abstraction has 2121 states and 3957 transitions.
[2023-12-22 04:39:21,872 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 825.0) internal successors, (1650), 2 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:39:21,873 INFO  L276                IsEmpty]: Start isEmpty. Operand 2121 states and 3957 transitions.
[2023-12-22 04:39:21,905 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1651
[2023-12-22 04:39:21,905 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:39:21,906 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]
[2023-12-22 04:39:21,920 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-22 04:39:22,110 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 04:39:22,111 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:39:22,112 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:39:22,112 INFO  L85        PathProgramCache]: Analyzing trace with hash -12547765, now seen corresponding path program 1 times
[2023-12-22 04:39:22,127 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:39:22,127 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [622043838]
[2023-12-22 04:39:22,127 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:39:22,128 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 04:39:22,128 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:39:22,145 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 04:39:22,145 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 04:39:22,620 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:39:22,627 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1699 conjuncts, 31 conjunts are in the unsatisfiable core
[2023-12-22 04:39:22,648 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:40:05,678 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 04:40:05,682 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:40:05,682 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:40:05,686 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [622043838]
[2023-12-22 04:40:05,686 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [622043838] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:40:05,686 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:40:05,686 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2023-12-22 04:40:05,686 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829468873]
[2023-12-22 04:40:05,687 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:40:05,690 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:40:05,690 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:40:05,708 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:40:05,708 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:40:05,709 INFO  L87              Difference]: Start difference. First operand 2121 states and 3957 transitions. Second operand  has 16 states, 16 states have (on average 103.125) internal successors, (1650), 15 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:40:25,820 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:40:25,820 INFO  L93              Difference]: Finished difference Result 5867 states and 11163 transitions.
[2023-12-22 04:40:25,821 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2023-12-22 04:40:25,821 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 103.125) internal successors, (1650), 15 states have internal predecessors, (1650), 0 states have call successors, (0), 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 1650
[2023-12-22 04:40:25,823 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:40:25,833 INFO  L225             Difference]: With dead ends: 5867
[2023-12-22 04:40:25,834 INFO  L226             Difference]: Without dead ends: 3747
[2023-12-22 04:40:25,836 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1660 GetRequests, 1635 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 04:40:25,836 INFO  L413           NwaCegarLoop]: 2327 mSDtfsCounter, 7576 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 30240 mSolverCounterSat, 1618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7576 SdHoareTripleChecker+Valid, 3665 SdHoareTripleChecker+Invalid, 31858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1618 IncrementalHoareTripleChecker+Valid, 30240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time
[2023-12-22 04:40:25,837 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [7576 Valid, 3665 Invalid, 31858 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1618 Valid, 30240 Invalid, 0 Unknown, 0 Unchecked, 19.1s Time]
[2023-12-22 04:40:25,840 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3747 states.
[2023-12-22 04:40:25,873 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3747 to 3747.
[2023-12-22 04:40:25,878 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 04:40:25,886 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3747 states to 3747 states and 5588 transitions.
[2023-12-22 04:40:25,887 INFO  L78                 Accepts]: Start accepts. Automaton has 3747 states and 5588 transitions. Word has length 1650
[2023-12-22 04:40:25,888 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:40:25,888 INFO  L495      AbstractCegarLoop]: Abstraction has 3747 states and 5588 transitions.
[2023-12-22 04:40:25,889 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 103.125) internal successors, (1650), 15 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:40:25,889 INFO  L276                IsEmpty]: Start isEmpty. Operand 3747 states and 5588 transitions.
[2023-12-22 04:40:25,911 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1760
[2023-12-22 04:40:25,911 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:40:25,912 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]
[2023-12-22 04:40:25,919 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2023-12-22 04:40:26,117 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 04:40:26,117 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:40:26,118 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:40:26,118 INFO  L85        PathProgramCache]: Analyzing trace with hash -142324347, now seen corresponding path program 1 times
[2023-12-22 04:40:26,126 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:40:26,127 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [404541687]
[2023-12-22 04:40:26,127 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:40:26,127 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:40:26,127 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:40:26,128 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 04:40:26,152 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 04:40:26,621 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:40:26,628 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1821 conjuncts, 29 conjunts are in the unsatisfiable core
[2023-12-22 04:40:26,659 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:41:07,946 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 04:41:07,947 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:41:07,947 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:41:07,947 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [404541687]
[2023-12-22 04:41:07,947 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [404541687] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:41:07,947 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:41:07,948 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2023-12-22 04:41:07,948 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216356123]
[2023-12-22 04:41:07,948 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:41:07,950 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:41:07,950 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:41:07,952 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:41:07,952 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:41:07,952 INFO  L87              Difference]: Start difference. First operand 3747 states and 5588 transitions. Second operand  has 16 states, 16 states have (on average 109.9375) internal successors, (1759), 15 states have internal predecessors, (1759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:41:28,016 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:41:28,017 INFO  L93              Difference]: Finished difference Result 9127 states and 15944 transitions.
[2023-12-22 04:41:28,018 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-22 04:41:28,019 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 109.9375) internal successors, (1759), 15 states have internal predecessors, (1759), 0 states have call successors, (0), 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 1759
[2023-12-22 04:41:28,021 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:41:28,069 INFO  L225             Difference]: With dead ends: 9127
[2023-12-22 04:41:28,069 INFO  L226             Difference]: Without dead ends: 7007
[2023-12-22 04:41:28,073 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1768 GetRequests, 1744 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=222, Invalid=428, Unknown=0, NotChecked=0, Total=650
[2023-12-22 04:41:28,074 INFO  L413           NwaCegarLoop]: 1098 mSDtfsCounter, 10299 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 22495 mSolverCounterSat, 3652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10299 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 26147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3652 IncrementalHoareTripleChecker+Valid, 22495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time
[2023-12-22 04:41:28,074 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10299 Valid, 1960 Invalid, 26147 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3652 Valid, 22495 Invalid, 0 Unknown, 0 Unchecked, 19.1s Time]
[2023-12-22 04:41:28,078 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7007 states.
[2023-12-22 04:41:28,284 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7007 to 7004.
[2023-12-22 04:41:28,292 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7004 states, 7003 states have (on average 1.4315293445666144) internal successors, (10025), 7003 states have internal predecessors, (10025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:41:28,315 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7004 states to 7004 states and 10025 transitions.
[2023-12-22 04:41:28,315 INFO  L78                 Accepts]: Start accepts. Automaton has 7004 states and 10025 transitions. Word has length 1759
[2023-12-22 04:41:28,317 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:41:28,317 INFO  L495      AbstractCegarLoop]: Abstraction has 7004 states and 10025 transitions.
[2023-12-22 04:41:28,317 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 109.9375) internal successors, (1759), 15 states have internal predecessors, (1759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:41:28,318 INFO  L276                IsEmpty]: Start isEmpty. Operand 7004 states and 10025 transitions.
[2023-12-22 04:41:28,366 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1796
[2023-12-22 04:41:28,366 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:41:28,367 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]
[2023-12-22 04:41:28,381 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 04:41:28,580 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 04:41:28,581 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:41:28,581 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:41:28,582 INFO  L85        PathProgramCache]: Analyzing trace with hash 1450183150, now seen corresponding path program 1 times
[2023-12-22 04:41:28,590 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:41:28,590 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978733633]
[2023-12-22 04:41:28,590 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:41:28,590 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:41:28,591 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:41:28,597 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 04:41:28,598 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 04:41:29,197 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:41:29,205 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1872 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-22 04:41:29,235 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:42:32,468 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 04:42:32,468 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:42:32,468 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:42:32,468 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978733633]
[2023-12-22 04:42:32,468 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978733633] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:42:32,468 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:42:32,469 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2023-12-22 04:42:32,469 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901557188]
[2023-12-22 04:42:32,469 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:42:32,470 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:42:32,471 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:42:32,472 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:42:32,472 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:42:32,473 INFO  L87              Difference]: Start difference. First operand 7004 states and 10025 transitions. Second operand  has 16 states, 16 states have (on average 112.1875) internal successors, (1795), 16 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:03,112 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:43:03,113 INFO  L93              Difference]: Finished difference Result 23843 states and 38737 transitions.
[2023-12-22 04:43:03,117 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. 
[2023-12-22 04:43:03,117 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 112.1875) internal successors, (1795), 16 states have internal predecessors, (1795), 0 states have call successors, (0), 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 1795
[2023-12-22 04:43:03,119 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:43:03,175 INFO  L225             Difference]: With dead ends: 23843
[2023-12-22 04:43:03,175 INFO  L226             Difference]: Without dead ends: 18466
[2023-12-22 04:43:03,186 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1815 GetRequests, 1783 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=353, Invalid=769, Unknown=0, NotChecked=0, Total=1122
[2023-12-22 04:43:03,188 INFO  L413           NwaCegarLoop]: 1624 mSDtfsCounter, 15691 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 28905 mSolverCounterSat, 6398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15691 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 35303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6398 IncrementalHoareTripleChecker+Valid, 28905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time
[2023-12-22 04:43:03,189 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [15691 Valid, 2290 Invalid, 35303 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6398 Valid, 28905 Invalid, 0 Unknown, 0 Unchecked, 28.1s Time]
[2023-12-22 04:43:03,204 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 18466 states.
[2023-12-22 04:43:03,385 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 18466 to 18459.
[2023-12-22 04:43:03,412 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18459 states, 18458 states have (on average 1.2827500270885253) internal successors, (23677), 18458 states have internal predecessors, (23677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:03,442 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18459 states to 18459 states and 23677 transitions.
[2023-12-22 04:43:03,442 INFO  L78                 Accepts]: Start accepts. Automaton has 18459 states and 23677 transitions. Word has length 1795
[2023-12-22 04:43:03,444 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:43:03,444 INFO  L495      AbstractCegarLoop]: Abstraction has 18459 states and 23677 transitions.
[2023-12-22 04:43:03,445 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 112.1875) internal successors, (1795), 16 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:03,445 INFO  L276                IsEmpty]: Start isEmpty. Operand 18459 states and 23677 transitions.
[2023-12-22 04:43:03,493 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2024
[2023-12-22 04:43:03,493 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:43:03,494 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-22 04:43:03,512 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0
[2023-12-22 04:43:03,699 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 04:43:03,699 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:43:03,700 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:43:03,700 INFO  L85        PathProgramCache]: Analyzing trace with hash -665941619, now seen corresponding path program 1 times
[2023-12-22 04:43:03,709 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:43:03,709 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178140275]
[2023-12-22 04:43:03,709 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:43:03,710 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:43:03,710 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:43:03,711 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 04:43:03,721 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 04:43:04,304 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:43:04,312 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2117 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:43:04,347 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:43:04,585 INFO  L134       CoverageAnalysis]: Checked inductivity of 550 backedges. 515 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2023-12-22 04:43:04,585 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:43:04,586 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:43:04,586 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178140275]
[2023-12-22 04:43:04,586 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1178140275] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:43:04,586 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:43:04,586 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:43:04,586 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062712587]
[2023-12-22 04:43:04,586 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:43:04,589 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:43:04,589 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:43:04,590 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:43:04,590 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:43:04,591 INFO  L87              Difference]: Start difference. First operand 18459 states and 23677 transitions. Second operand  has 3 states, 3 states have (on average 663.0) internal successors, (1989), 3 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:11,848 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:43:11,848 INFO  L93              Difference]: Finished difference Result 45487 states and 59016 transitions.
[2023-12-22 04:43:11,849 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:43:11,849 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 663.0) internal successors, (1989), 3 states have internal predecessors, (1989), 0 states have call successors, (0), 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 2023
[2023-12-22 04:43:11,850 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:43:11,895 INFO  L225             Difference]: With dead ends: 45487
[2023-12-22 04:43:11,896 INFO  L226             Difference]: Without dead ends: 26957
[2023-12-22 04:43:11,920 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2022 GetRequests, 2021 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:43:11,921 INFO  L413           NwaCegarLoop]: 3478 mSDtfsCounter, 1696 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 5478 mSolverCounterSat, 1492 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 3724 SdHoareTripleChecker+Invalid, 6970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1492 IncrementalHoareTripleChecker+Valid, 5478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time
[2023-12-22 04:43:11,921 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1696 Valid, 3724 Invalid, 6970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1492 Valid, 5478 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time]
[2023-12-22 04:43:11,952 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 26957 states.
[2023-12-22 04:43:12,198 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 26957 to 26949.
[2023-12-22 04:43:12,224 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 26949 states, 26948 states have (on average 1.1994953243283362) internal successors, (32324), 26948 states have internal predecessors, (32324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:12,255 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 26949 states to 26949 states and 32324 transitions.
[2023-12-22 04:43:12,256 INFO  L78                 Accepts]: Start accepts. Automaton has 26949 states and 32324 transitions. Word has length 2023
[2023-12-22 04:43:12,256 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:43:12,256 INFO  L495      AbstractCegarLoop]: Abstraction has 26949 states and 32324 transitions.
[2023-12-22 04:43:12,257 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 663.0) internal successors, (1989), 3 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:12,258 INFO  L276                IsEmpty]: Start isEmpty. Operand 26949 states and 32324 transitions.
[2023-12-22 04:43:12,311 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2041
[2023-12-22 04:43:12,314 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:43:12,318 INFO  L195           NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2023-12-22 04:43:12,339 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 04:43:12,523 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 04:43:12,523 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:43:12,523 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:43:12,524 INFO  L85        PathProgramCache]: Analyzing trace with hash 1506316997, now seen corresponding path program 1 times
[2023-12-22 04:43:12,533 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:43:12,534 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1306040801]
[2023-12-22 04:43:12,534 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:43:12,534 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:43:12,534 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:43:12,535 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 04:43:12,537 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 04:43:13,185 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:43:13,196 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2149 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:43:13,208 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:43:13,238 INFO  L134       CoverageAnalysis]: Checked inductivity of 599 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked.
[2023-12-22 04:43:13,238 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:43:13,238 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:43:13,239 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1306040801]
[2023-12-22 04:43:13,239 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1306040801] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:43:13,239 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:43:13,239 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:43:13,239 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150028515]
[2023-12-22 04:43:13,239 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:43:13,240 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:43:13,241 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:43:13,242 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:43:13,242 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:43:13,242 INFO  L87              Difference]: Start difference. First operand 26949 states and 32324 transitions. Second operand  has 3 states, 3 states have (on average 632.6666666666666) internal successors, (1898), 3 states have internal predecessors, (1898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:19,049 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:43:19,050 INFO  L93              Difference]: Finished difference Result 60773 states and 74604 transitions.
[2023-12-22 04:43:19,050 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:43:19,050 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 632.6666666666666) internal successors, (1898), 3 states have internal predecessors, (1898), 0 states have call successors, (0), 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 2040
[2023-12-22 04:43:19,051 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:43:19,104 INFO  L225             Difference]: With dead ends: 60773
[2023-12-22 04:43:19,104 INFO  L226             Difference]: Without dead ends: 35451
[2023-12-22 04:43:19,130 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2039 GetRequests, 2038 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:43:19,131 INFO  L413           NwaCegarLoop]: 1775 mSDtfsCounter, 1866 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 5599 mSolverCounterSat, 1388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1866 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 6987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1388 IncrementalHoareTripleChecker+Valid, 5599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time
[2023-12-22 04:43:19,131 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1866 Valid, 2047 Invalid, 6987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1388 Valid, 5599 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time]
[2023-12-22 04:43:19,157 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 35451 states.
[2023-12-22 04:43:19,386 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 35451 to 32048.
[2023-12-22 04:43:19,411 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32048 states, 32047 states have (on average 1.1932786220239024) internal successors, (38241), 32047 states have internal predecessors, (38241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:19,445 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32048 states to 32048 states and 38241 transitions.
[2023-12-22 04:43:19,445 INFO  L78                 Accepts]: Start accepts. Automaton has 32048 states and 38241 transitions. Word has length 2040
[2023-12-22 04:43:19,445 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:43:19,445 INFO  L495      AbstractCegarLoop]: Abstraction has 32048 states and 38241 transitions.
[2023-12-22 04:43:19,446 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 632.6666666666666) internal successors, (1898), 3 states have internal predecessors, (1898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:19,446 INFO  L276                IsEmpty]: Start isEmpty. Operand 32048 states and 38241 transitions.
[2023-12-22 04:43:19,501 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2075
[2023-12-22 04:43:19,501 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:43:19,502 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, 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]
[2023-12-22 04:43:19,512 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2023-12-22 04:43:19,707 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 04:43:19,707 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:43:19,707 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:43:19,708 INFO  L85        PathProgramCache]: Analyzing trace with hash 1338984939, now seen corresponding path program 1 times
[2023-12-22 04:43:19,717 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:43:19,717 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963450547]
[2023-12-22 04:43:19,717 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:43:19,717 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:43:19,717 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:43:19,718 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 04:43:19,720 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 04:43:20,409 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:43:20,417 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2196 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:43:20,429 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:43:20,484 INFO  L134       CoverageAnalysis]: Checked inductivity of 737 backedges. 547 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2023-12-22 04:43:20,484 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:43:20,484 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:43:20,485 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963450547]
[2023-12-22 04:43:20,485 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [963450547] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:43:20,485 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:43:20,485 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:43:20,485 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179286893]
[2023-12-22 04:43:20,485 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:43:20,486 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:43:20,486 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:43:20,488 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:43:20,488 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:43:20,488 INFO  L87              Difference]: Start difference. First operand 32048 states and 38241 transitions. Second operand  has 3 states, 3 states have (on average 640.6666666666666) internal successors, (1922), 3 states have internal predecessors, (1922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:27,732 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:43:27,732 INFO  L93              Difference]: Finished difference Result 79530 states and 95308 transitions.
[2023-12-22 04:43:27,732 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:43:27,733 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 640.6666666666666) internal successors, (1922), 3 states have internal predecessors, (1922), 0 states have call successors, (0), 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 2074
[2023-12-22 04:43:27,734 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:43:27,793 INFO  L225             Difference]: With dead ends: 79530
[2023-12-22 04:43:27,793 INFO  L226             Difference]: Without dead ends: 49109
[2023-12-22 04:43:27,824 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2073 GetRequests, 2072 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:43:27,825 INFO  L413           NwaCegarLoop]: 3532 mSDtfsCounter, 1820 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 5274 mSolverCounterSat, 2059 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1820 SdHoareTripleChecker+Valid, 3759 SdHoareTripleChecker+Invalid, 7333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2059 IncrementalHoareTripleChecker+Valid, 5274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time
[2023-12-22 04:43:27,825 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1820 Valid, 3759 Invalid, 7333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2059 Valid, 5274 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time]
[2023-12-22 04:43:27,862 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 49109 states.
[2023-12-22 04:43:28,210 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 49109 to 49043.
[2023-12-22 04:43:28,250 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 49043 states, 49042 states have (on average 1.154214754700053) internal successors, (56605), 49042 states have internal predecessors, (56605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:28,300 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 49043 states to 49043 states and 56605 transitions.
[2023-12-22 04:43:28,300 INFO  L78                 Accepts]: Start accepts. Automaton has 49043 states and 56605 transitions. Word has length 2074
[2023-12-22 04:43:28,301 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:43:28,301 INFO  L495      AbstractCegarLoop]: Abstraction has 49043 states and 56605 transitions.
[2023-12-22 04:43:28,302 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 640.6666666666666) internal successors, (1922), 3 states have internal predecessors, (1922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:28,302 INFO  L276                IsEmpty]: Start isEmpty. Operand 49043 states and 56605 transitions.
[2023-12-22 04:43:28,362 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2105
[2023-12-22 04:43:28,362 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:43:28,363 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2023-12-22 04:43:28,369 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 04:43:28,567 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 04:43:28,568 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:43:28,568 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:43:28,568 INFO  L85        PathProgramCache]: Analyzing trace with hash -2013672094, now seen corresponding path program 1 times
[2023-12-22 04:43:28,577 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:43:28,577 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522689283]
[2023-12-22 04:43:28,578 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:43:28,578 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:43:28,578 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:43:28,579 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 04:43:28,580 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 04:43:29,575 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:43:29,586 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2239 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:43:29,598 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:43:29,659 INFO  L134       CoverageAnalysis]: Checked inductivity of 881 backedges. 660 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked.
[2023-12-22 04:43:29,659 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:43:29,659 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:43:29,659 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [522689283]
[2023-12-22 04:43:29,659 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [522689283] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:43:29,659 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:43:29,660 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:43:29,660 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297504077]
[2023-12-22 04:43:29,660 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:43:29,661 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:43:29,661 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:43:29,663 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:43:29,663 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:43:29,663 INFO  L87              Difference]: Start difference. First operand 49043 states and 56605 transitions. Second operand  has 3 states, 3 states have (on average 644.3333333333334) internal successors, (1933), 3 states have internal predecessors, (1933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:36,570 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:43:36,570 INFO  L93              Difference]: Finished difference Result 127035 states and 146677 transitions.
[2023-12-22 04:43:36,570 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:43:36,571 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 644.3333333333334) internal successors, (1933), 3 states have internal predecessors, (1933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2104
[2023-12-22 04:43:36,571 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:43:36,655 INFO  L225             Difference]: With dead ends: 127035
[2023-12-22 04:43:36,655 INFO  L226             Difference]: Without dead ends: 79619
[2023-12-22 04:43:36,675 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2103 GetRequests, 2102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:43:36,676 INFO  L413           NwaCegarLoop]: 3769 mSDtfsCounter, 1740 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 5734 mSolverCounterSat, 1471 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1740 SdHoareTripleChecker+Valid, 4009 SdHoareTripleChecker+Invalid, 7205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1471 IncrementalHoareTripleChecker+Valid, 5734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time
[2023-12-22 04:43:36,676 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1740 Valid, 4009 Invalid, 7205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1471 Valid, 5734 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time]
[2023-12-22 04:43:36,727 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 79619 states.
[2023-12-22 04:43:37,384 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 79619 to 79610.
[2023-12-22 04:43:37,435 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 79610 states, 79609 states have (on average 1.1101257395520607) internal successors, (88376), 79609 states have internal predecessors, (88376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:37,521 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 79610 states to 79610 states and 88376 transitions.
[2023-12-22 04:43:37,521 INFO  L78                 Accepts]: Start accepts. Automaton has 79610 states and 88376 transitions. Word has length 2104
[2023-12-22 04:43:37,521 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:43:37,522 INFO  L495      AbstractCegarLoop]: Abstraction has 79610 states and 88376 transitions.
[2023-12-22 04:43:37,522 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 644.3333333333334) internal successors, (1933), 3 states have internal predecessors, (1933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:37,522 INFO  L276                IsEmpty]: Start isEmpty. Operand 79610 states and 88376 transitions.
[2023-12-22 04:43:37,628 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2154
[2023-12-22 04:43:37,628 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:43:37,629 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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]
[2023-12-22 04:43:37,634 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 04:43:37,834 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 04:43:37,834 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:43:37,835 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:43:37,835 INFO  L85        PathProgramCache]: Analyzing trace with hash 1411528747, now seen corresponding path program 1 times
[2023-12-22 04:43:37,844 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:43:37,844 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86424940]
[2023-12-22 04:43:37,844 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:43:37,845 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:43:37,845 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:43:37,846 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 04:43:37,847 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 04:43:38,762 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:43:38,771 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2275 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:43:38,782 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:43:38,818 INFO  L134       CoverageAnalysis]: Checked inductivity of 998 backedges. 713 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked.
[2023-12-22 04:43:38,819 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:43:38,819 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:43:38,819 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [86424940]
[2023-12-22 04:43:38,819 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [86424940] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:43:38,819 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:43:38,819 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:43:38,819 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569223553]
[2023-12-22 04:43:38,819 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:43:38,821 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:43:38,821 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:43:38,822 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:43:38,822 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:43:38,823 INFO  L87              Difference]: Start difference. First operand 79610 states and 88376 transitions. Second operand  has 3 states, 3 states have (on average 635.3333333333334) internal successors, (1906), 3 states have internal predecessors, (1906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:46,133 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:43:46,134 INFO  L93              Difference]: Finished difference Result 179664 states and 201305 transitions.
[2023-12-22 04:43:46,134 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:43:46,135 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 635.3333333333334) internal successors, (1906), 3 states have internal predecessors, (1906), 0 states have call successors, (0), 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 2153
[2023-12-22 04:43:46,135 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:43:46,272 INFO  L225             Difference]: With dead ends: 179664
[2023-12-22 04:43:46,272 INFO  L226             Difference]: Without dead ends: 101681
[2023-12-22 04:43:46,308 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2152 GetRequests, 2151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:43:46,309 INFO  L413           NwaCegarLoop]: 3506 mSDtfsCounter, 1907 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 5238 mSolverCounterSat, 1187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1907 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 6425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1187 IncrementalHoareTripleChecker+Valid, 5238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time
[2023-12-22 04:43:46,309 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1907 Valid, 3850 Invalid, 6425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1187 Valid, 5238 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time]
[2023-12-22 04:43:46,378 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 101681 states.
[2023-12-22 04:43:47,223 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 101681 to 101679.
[2023-12-22 04:43:47,295 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 101679 states, 101678 states have (on average 1.101113318515313) internal successors, (111959), 101678 states have internal predecessors, (111959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:47,408 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 101679 states to 101679 states and 111959 transitions.
[2023-12-22 04:43:47,409 INFO  L78                 Accepts]: Start accepts. Automaton has 101679 states and 111959 transitions. Word has length 2153
[2023-12-22 04:43:47,409 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:43:47,409 INFO  L495      AbstractCegarLoop]: Abstraction has 101679 states and 111959 transitions.
[2023-12-22 04:43:47,410 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 635.3333333333334) internal successors, (1906), 3 states have internal predecessors, (1906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:47,410 INFO  L276                IsEmpty]: Start isEmpty. Operand 101679 states and 111959 transitions.
[2023-12-22 04:43:47,745 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2249
[2023-12-22 04:43:47,746 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:43:47,746 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2023-12-22 04:43:47,751 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 04:43:47,951 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 04:43:47,952 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:43:47,952 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:43:47,952 INFO  L85        PathProgramCache]: Analyzing trace with hash -1798601780, now seen corresponding path program 1 times
[2023-12-22 04:43:47,962 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:43:47,962 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729406022]
[2023-12-22 04:43:47,962 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:43:47,962 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:43:47,962 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:43:47,964 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 04:43:47,966 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process
[2023-12-22 04:43:48,787 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:43:48,797 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2397 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:43:48,809 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:43:49,091 INFO  L134       CoverageAnalysis]: Checked inductivity of 1316 backedges. 1032 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked.
[2023-12-22 04:43:49,091 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:43:49,091 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:43:49,091 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729406022]
[2023-12-22 04:43:49,091 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [729406022] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:43:49,091 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:43:49,091 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:43:49,092 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411532614]
[2023-12-22 04:43:49,092 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:43:49,093 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:43:49,093 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:43:49,095 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:43:49,095 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:43:49,095 INFO  L87              Difference]: Start difference. First operand 101679 states and 111959 transitions. Second operand  has 3 states, 3 states have (on average 682.0) internal successors, (2046), 3 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:55,222 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:43:55,222 INFO  L93              Difference]: Finished difference Result 220432 states and 242449 transitions.
[2023-12-22 04:43:55,223 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:43:55,224 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 682.0) internal successors, (2046), 3 states have internal predecessors, (2046), 0 states have call successors, (0), 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 2248
[2023-12-22 04:43:55,224 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:43:55,369 INFO  L225             Difference]: With dead ends: 220432
[2023-12-22 04:43:55,369 INFO  L226             Difference]: Without dead ends: 120380
[2023-12-22 04:43:55,550 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2247 GetRequests, 2246 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:43:55,550 INFO  L413           NwaCegarLoop]: 3847 mSDtfsCounter, 1616 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 4815 mSolverCounterSat, 1221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 4068 SdHoareTripleChecker+Invalid, 6036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1221 IncrementalHoareTripleChecker+Valid, 4815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time
[2023-12-22 04:43:55,550 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1616 Valid, 4068 Invalid, 6036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1221 Valid, 4815 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time]
[2023-12-22 04:43:55,638 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 120380 states.
[2023-12-22 04:43:56,665 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 120380 to 120360.
[2023-12-22 04:43:56,736 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 120360 states, 120359 states have (on average 1.0883191119899633) internal successors, (130989), 120359 states have internal predecessors, (130989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:57,018 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 120360 states to 120360 states and 130989 transitions.
[2023-12-22 04:43:57,018 INFO  L78                 Accepts]: Start accepts. Automaton has 120360 states and 130989 transitions. Word has length 2248
[2023-12-22 04:43:57,019 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:43:57,019 INFO  L495      AbstractCegarLoop]: Abstraction has 120360 states and 130989 transitions.
[2023-12-22 04:43:57,019 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 682.0) internal successors, (2046), 3 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:43:57,020 INFO  L276                IsEmpty]: Start isEmpty. Operand 120360 states and 130989 transitions.
[2023-12-22 04:43:57,268 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2451
[2023-12-22 04:43:57,268 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:43:57,269 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:43:57,275 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 04:43:57,472 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 04:43:57,473 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:43:57,473 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:43:57,473 INFO  L85        PathProgramCache]: Analyzing trace with hash -241552374, now seen corresponding path program 1 times
[2023-12-22 04:43:57,484 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:43:57,484 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1195628443]
[2023-12-22 04:43:57,484 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:43:57,484 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:43:57,484 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:43:57,486 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 04:43:57,487 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 04:43:58,143 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:43:58,154 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2585 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:43:58,166 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:43:58,423 INFO  L134       CoverageAnalysis]: Checked inductivity of 1950 backedges. 1442 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked.
[2023-12-22 04:43:58,423 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:43:58,423 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:43:58,423 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1195628443]
[2023-12-22 04:43:58,423 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1195628443] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:43:58,423 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:43:58,423 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:43:58,424 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635870192]
[2023-12-22 04:43:58,424 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:43:58,425 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:43:58,425 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:43:58,427 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:43:58,427 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:43:58,427 INFO  L87              Difference]: Start difference. First operand 120360 states and 130989 transitions. Second operand  has 3 states, 3 states have (on average 679.0) internal successors, (2037), 3 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:04,903 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:44:04,903 INFO  L93              Difference]: Finished difference Result 247604 states and 269670 transitions.
[2023-12-22 04:44:04,904 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:44:04,904 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 679.0) internal successors, (2037), 3 states have internal predecessors, (2037), 0 states have call successors, (0), 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 2450
[2023-12-22 04:44:04,904 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:44:05,054 INFO  L225             Difference]: With dead ends: 247604
[2023-12-22 04:44:05,054 INFO  L226             Difference]: Without dead ends: 128871
[2023-12-22 04:44:05,269 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2449 GetRequests, 2448 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:44:05,275 INFO  L413           NwaCegarLoop]: 3844 mSDtfsCounter, 1631 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 4886 mSolverCounterSat, 1039 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1631 SdHoareTripleChecker+Valid, 4064 SdHoareTripleChecker+Invalid, 5925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1039 IncrementalHoareTripleChecker+Valid, 4886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time
[2023-12-22 04:44:05,275 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1631 Valid, 4064 Invalid, 5925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1039 Valid, 4886 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time]
[2023-12-22 04:44:05,356 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 128871 states.
[2023-12-22 04:44:06,389 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 128871 to 128851.
[2023-12-22 04:44:06,464 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 128851 states, 128850 states have (on average 1.083616608459449) internal successors, (139624), 128850 states have internal predecessors, (139624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:06,797 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 128851 states to 128851 states and 139624 transitions.
[2023-12-22 04:44:06,797 INFO  L78                 Accepts]: Start accepts. Automaton has 128851 states and 139624 transitions. Word has length 2450
[2023-12-22 04:44:06,798 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:44:06,798 INFO  L495      AbstractCegarLoop]: Abstraction has 128851 states and 139624 transitions.
[2023-12-22 04:44:06,798 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 679.0) internal successors, (2037), 3 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:06,798 INFO  L276                IsEmpty]: Start isEmpty. Operand 128851 states and 139624 transitions.
[2023-12-22 04:44:06,964 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2533
[2023-12-22 04:44:06,964 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:44:06,965 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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]
[2023-12-22 04:44:06,970 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 04:44:07,170 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 04:44:07,170 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:44:07,171 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:44:07,171 INFO  L85        PathProgramCache]: Analyzing trace with hash 1418693560, now seen corresponding path program 1 times
[2023-12-22 04:44:07,182 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:44:07,182 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587265546]
[2023-12-22 04:44:07,182 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:44:07,182 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:44:07,182 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:44:07,183 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 04:44:07,185 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 04:44:08,186 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:44:08,197 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2671 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:44:08,210 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:44:08,289 INFO  L134       CoverageAnalysis]: Checked inductivity of 2269 backedges. 1500 proven. 0 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked.
[2023-12-22 04:44:08,289 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:44:08,289 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:44:08,289 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587265546]
[2023-12-22 04:44:08,289 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1587265546] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:44:08,290 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:44:08,290 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:44:08,290 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914083408]
[2023-12-22 04:44:08,290 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:44:08,291 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:44:08,291 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:44:08,292 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:44:08,293 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:44:08,293 INFO  L87              Difference]: Start difference. First operand 128851 states and 139624 transitions. Second operand  has 3 states, 3 states have (on average 648.6666666666666) internal successors, (1946), 3 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:16,994 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:44:16,995 INFO  L93              Difference]: Finished difference Result 301997 states and 330183 transitions.
[2023-12-22 04:44:16,995 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:44:16,996 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 648.6666666666666) internal successors, (1946), 3 states have internal predecessors, (1946), 0 states have call successors, (0), 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 2532
[2023-12-22 04:44:16,996 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:44:17,234 INFO  L225             Difference]: With dead ends: 301997
[2023-12-22 04:44:17,235 INFO  L226             Difference]: Without dead ends: 173074
[2023-12-22 04:44:17,326 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2531 GetRequests, 2530 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:44:17,327 INFO  L413           NwaCegarLoop]: 3858 mSDtfsCounter, 1802 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 6116 mSolverCounterSat, 1293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1802 SdHoareTripleChecker+Valid, 4055 SdHoareTripleChecker+Invalid, 7409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1293 IncrementalHoareTripleChecker+Valid, 6116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time
[2023-12-22 04:44:17,327 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1802 Valid, 4055 Invalid, 7409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1293 Valid, 6116 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time]
[2023-12-22 04:44:17,475 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 173074 states.
[2023-12-22 04:44:18,913 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 173074 to 173007.
[2023-12-22 04:44:19,004 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 173007 states, 173006 states have (on average 1.0773845993780562) internal successors, (186394), 173006 states have internal predecessors, (186394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:19,357 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 173007 states to 173007 states and 186394 transitions.
[2023-12-22 04:44:19,357 INFO  L78                 Accepts]: Start accepts. Automaton has 173007 states and 186394 transitions. Word has length 2532
[2023-12-22 04:44:19,357 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:44:19,357 INFO  L495      AbstractCegarLoop]: Abstraction has 173007 states and 186394 transitions.
[2023-12-22 04:44:19,358 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 648.6666666666666) internal successors, (1946), 3 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:19,358 INFO  L276                IsEmpty]: Start isEmpty. Operand 173007 states and 186394 transitions.
[2023-12-22 04:44:19,713 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2612
[2023-12-22 04:44:19,714 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:44:19,714 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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]
[2023-12-22 04:44:19,721 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 04:44:19,918 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 04:44:19,919 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:44:19,919 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:44:19,920 INFO  L85        PathProgramCache]: Analyzing trace with hash 1387096736, now seen corresponding path program 1 times
[2023-12-22 04:44:19,933 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:44:19,933 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587630669]
[2023-12-22 04:44:19,933 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:44:19,933 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:44:19,934 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:44:19,934 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 04:44:19,936 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 04:44:20,731 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:44:20,744 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2751 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:44:20,758 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:44:20,913 INFO  L134       CoverageAnalysis]: Checked inductivity of 2630 backedges. 1861 proven. 0 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked.
[2023-12-22 04:44:20,913 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:44:20,913 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:44:20,913 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587630669]
[2023-12-22 04:44:20,913 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [587630669] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:44:20,913 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:44:20,914 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:44:20,914 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397724205]
[2023-12-22 04:44:20,914 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:44:20,915 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:44:20,915 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:44:20,917 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:44:20,917 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:44:20,917 INFO  L87              Difference]: Start difference. First operand 173007 states and 186394 transitions. Second operand  has 3 states, 3 states have (on average 675.0) internal successors, (2025), 3 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:29,423 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:44:29,423 INFO  L93              Difference]: Finished difference Result 405527 states and 440193 transitions.
[2023-12-22 04:44:29,424 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:44:29,424 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 675.0) internal successors, (2025), 3 states have internal predecessors, (2025), 0 states have call successors, (0), 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 2611
[2023-12-22 04:44:29,425 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:44:29,975 INFO  L225             Difference]: With dead ends: 405527
[2023-12-22 04:44:29,975 INFO  L226             Difference]: Without dead ends: 232448
[2023-12-22 04:44:30,127 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2610 GetRequests, 2609 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:44:30,141 INFO  L413           NwaCegarLoop]: 2138 mSDtfsCounter, 1669 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 5641 mSolverCounterSat, 1503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1669 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 7144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1503 IncrementalHoareTripleChecker+Valid, 5641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time
[2023-12-22 04:44:30,141 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1669 Valid, 2370 Invalid, 7144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1503 Valid, 5641 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time]
[2023-12-22 04:44:30,332 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 232448 states.
[2023-12-22 04:44:32,258 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 232448 to 232434.
[2023-12-22 04:44:32,567 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 232434 states, 232433 states have (on average 1.0643196103823467) internal successors, (247383), 232433 states have internal predecessors, (247383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:32,811 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 232434 states to 232434 states and 247383 transitions.
[2023-12-22 04:44:32,811 INFO  L78                 Accepts]: Start accepts. Automaton has 232434 states and 247383 transitions. Word has length 2611
[2023-12-22 04:44:32,811 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:44:32,811 INFO  L495      AbstractCegarLoop]: Abstraction has 232434 states and 247383 transitions.
[2023-12-22 04:44:32,812 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 675.0) internal successors, (2025), 3 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:32,812 INFO  L276                IsEmpty]: Start isEmpty. Operand 232434 states and 247383 transitions.
[2023-12-22 04:44:33,249 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2625
[2023-12-22 04:44:33,249 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:44:33,250 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:44:33,256 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0
[2023-12-22 04:44:33,455 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:44:33,456 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:44:33,457 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:44:33,457 INFO  L85        PathProgramCache]: Analyzing trace with hash -1001888707, now seen corresponding path program 1 times
[2023-12-22 04:44:33,468 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:44:33,468 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48202588]
[2023-12-22 04:44:33,468 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:44:33,469 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:44:33,469 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:44:33,471 INFO  L229       MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:44:33,500 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process
[2023-12-22 04:44:34,485 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:44:34,496 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2748 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:44:34,515 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:44:36,373 INFO  L134       CoverageAnalysis]: Checked inductivity of 1584 backedges. 1544 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2023-12-22 04:44:36,373 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:44:36,374 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:44:36,374 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48202588]
[2023-12-22 04:44:36,374 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [48202588] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:44:36,374 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:44:36,374 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-22 04:44:36,375 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404368771]
[2023-12-22 04:44:36,375 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:44:36,376 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-22 04:44:36,376 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:44:36,378 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-22 04:44:36,378 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-12-22 04:44:36,378 INFO  L87              Difference]: Start difference. First operand 232434 states and 247383 transitions. Second operand  has 4 states, 4 states have (on average 646.5) internal successors, (2586), 4 states have internal predecessors, (2586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:45,845 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:44:45,845 INFO  L93              Difference]: Finished difference Result 468335 states and 499782 transitions.
[2023-12-22 04:44:45,846 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-22 04:44:45,846 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 646.5) internal successors, (2586), 4 states have internal predecessors, (2586), 0 states have call successors, (0), 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 2624
[2023-12-22 04:44:45,847 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:44:46,164 INFO  L225             Difference]: With dead ends: 468335
[2023-12-22 04:44:46,164 INFO  L226             Difference]: Without dead ends: 237528
[2023-12-22 04:44:46,244 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2623 GetRequests, 2621 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 04:44:46,246 INFO  L413           NwaCegarLoop]: 1743 mSDtfsCounter, 2938 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 9097 mSolverCounterSat, 1677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2938 SdHoareTripleChecker+Valid, 2127 SdHoareTripleChecker+Invalid, 10774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1677 IncrementalHoareTripleChecker+Valid, 9097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time
[2023-12-22 04:44:46,246 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2938 Valid, 2127 Invalid, 10774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1677 Valid, 9097 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time]
[2023-12-22 04:44:46,441 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 237528 states.
[2023-12-22 04:44:48,330 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 237528 to 230733.
[2023-12-22 04:44:48,456 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 230733 states, 230732 states have (on average 1.0590685297227953) internal successors, (244361), 230732 states have internal predecessors, (244361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:48,955 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 230733 states to 230733 states and 244361 transitions.
[2023-12-22 04:44:48,955 INFO  L78                 Accepts]: Start accepts. Automaton has 230733 states and 244361 transitions. Word has length 2624
[2023-12-22 04:44:48,956 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:44:48,956 INFO  L495      AbstractCegarLoop]: Abstraction has 230733 states and 244361 transitions.
[2023-12-22 04:44:48,957 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 646.5) internal successors, (2586), 4 states have internal predecessors, (2586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:48,957 INFO  L276                IsEmpty]: Start isEmpty. Operand 230733 states and 244361 transitions.
[2023-12-22 04:44:49,139 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2711
[2023-12-22 04:44:49,139 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:44:49,140 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2023-12-22 04:44:49,148 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0
[2023-12-22 04:44:49,345 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:44:49,346 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:44:49,346 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:44:49,347 INFO  L85        PathProgramCache]: Analyzing trace with hash 712532820, now seen corresponding path program 1 times
[2023-12-22 04:44:49,358 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:44:49,358 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727796624]
[2023-12-22 04:44:49,358 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:44:49,358 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:44:49,358 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:44:49,359 INFO  L229       MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:44:49,561 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process
[2023-12-22 04:44:50,392 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:44:50,403 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2839 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:44:50,421 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:44:50,582 INFO  L134       CoverageAnalysis]: Checked inductivity of 2007 backedges. 1451 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked.
[2023-12-22 04:44:50,582 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:44:50,582 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:44:50,582 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727796624]
[2023-12-22 04:44:50,582 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [727796624] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:44:50,582 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:44:50,583 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:44:50,583 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129296557]
[2023-12-22 04:44:50,583 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:44:50,584 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:44:50,584 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:44:50,586 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:44:50,586 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:44:50,586 INFO  L87              Difference]: Start difference. First operand 230733 states and 244361 transitions. Second operand  has 3 states, 3 states have (on average 778.6666666666666) internal successors, (2336), 3 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:44:58,969 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:44:58,970 INFO  L93              Difference]: Finished difference Result 515894 states and 548911 transitions.
[2023-12-22 04:44:58,970 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:44:58,971 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 778.6666666666666) internal successors, (2336), 3 states have internal predecessors, (2336), 0 states have call successors, (0), 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 2710
[2023-12-22 04:44:58,971 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:44:59,669 INFO  L225             Difference]: With dead ends: 515894
[2023-12-22 04:44:59,669 INFO  L226             Difference]: Without dead ends: 286788
[2023-12-22 04:44:59,836 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2709 GetRequests, 2708 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:44:59,836 INFO  L413           NwaCegarLoop]: 3630 mSDtfsCounter, 1673 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 5535 mSolverCounterSat, 1426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1673 SdHoareTripleChecker+Valid, 3872 SdHoareTripleChecker+Invalid, 6961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1426 IncrementalHoareTripleChecker+Valid, 5535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time
[2023-12-22 04:44:59,837 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1673 Valid, 3872 Invalid, 6961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1426 Valid, 5535 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time]
[2023-12-22 04:45:00,058 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 286788 states.
[2023-12-22 04:45:02,585 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 286788 to 286765.
[2023-12-22 04:45:02,722 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 286765 states, 286764 states have (on average 1.0516766400245499) internal successors, (301583), 286764 states have internal predecessors, (301583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:03,050 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 286765 states to 286765 states and 301583 transitions.
[2023-12-22 04:45:03,051 INFO  L78                 Accepts]: Start accepts. Automaton has 286765 states and 301583 transitions. Word has length 2710
[2023-12-22 04:45:03,052 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:45:03,052 INFO  L495      AbstractCegarLoop]: Abstraction has 286765 states and 301583 transitions.
[2023-12-22 04:45:03,052 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 778.6666666666666) internal successors, (2336), 3 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:03,052 INFO  L276                IsEmpty]: Start isEmpty. Operand 286765 states and 301583 transitions.
[2023-12-22 04:45:03,588 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2766
[2023-12-22 04:45:03,588 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:45:03,589 INFO  L195           NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:45:03,596 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 04:45:03,794 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 04:45:03,794 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:45:03,795 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:45:03,795 INFO  L85        PathProgramCache]: Analyzing trace with hash -1140804700, now seen corresponding path program 1 times
[2023-12-22 04:45:03,806 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:45:03,806 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234458308]
[2023-12-22 04:45:03,807 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:45:03,807 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:45:03,807 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:45:03,808 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 04:45:03,809 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 04:45:04,712 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:45:04,724 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2931 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:45:04,742 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:45:04,906 INFO  L134       CoverageAnalysis]: Checked inductivity of 3243 backedges. 2236 proven. 0 refuted. 0 times theorem prover too weak. 1007 trivial. 0 not checked.
[2023-12-22 04:45:04,906 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:45:04,906 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:45:04,906 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234458308]
[2023-12-22 04:45:04,906 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1234458308] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:45:04,906 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:45:04,907 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:45:04,907 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101786537]
[2023-12-22 04:45:04,907 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:45:04,908 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:45:04,908 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:45:04,910 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:45:04,910 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:45:04,910 INFO  L87              Difference]: Start difference. First operand 286765 states and 301583 transitions. Second operand  has 3 states, 3 states have (on average 732.6666666666666) internal successors, (2198), 3 states have internal predecessors, (2198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:12,812 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:45:12,812 INFO  L93              Difference]: Finished difference Result 726414 states and 765136 transitions.
[2023-12-22 04:45:12,813 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:45:12,813 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 732.6666666666666) internal successors, (2198), 3 states have internal predecessors, (2198), 0 states have call successors, (0), 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 2765
[2023-12-22 04:45:12,814 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:45:13,474 INFO  L225             Difference]: With dead ends: 726414
[2023-12-22 04:45:13,474 INFO  L226             Difference]: Without dead ends: 411571
[2023-12-22 04:45:13,601 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2764 GetRequests, 2763 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:45:13,602 INFO  L413           NwaCegarLoop]: 1630 mSDtfsCounter, 2333 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 4470 mSolverCounterSat, 2322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2333 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 6792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2322 IncrementalHoareTripleChecker+Valid, 4470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time
[2023-12-22 04:45:13,603 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2333 Valid, 1738 Invalid, 6792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2322 Valid, 4470 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time]
[2023-12-22 04:45:13,968 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 411571 states.
[2023-12-22 04:45:17,264 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 411571 to 384399.
[2023-12-22 04:45:17,453 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 384399 states, 384398 states have (on average 1.0232467390569149) internal successors, (393334), 384398 states have internal predecessors, (393334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:18,492 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 384399 states to 384399 states and 393334 transitions.
[2023-12-22 04:45:18,492 INFO  L78                 Accepts]: Start accepts. Automaton has 384399 states and 393334 transitions. Word has length 2765
[2023-12-22 04:45:18,493 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:45:18,493 INFO  L495      AbstractCegarLoop]: Abstraction has 384399 states and 393334 transitions.
[2023-12-22 04:45:18,493 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 732.6666666666666) internal successors, (2198), 3 states have internal predecessors, (2198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:18,493 INFO  L276                IsEmpty]: Start isEmpty. Operand 384399 states and 393334 transitions.
[2023-12-22 04:45:19,128 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2855
[2023-12-22 04:45:19,128 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:45:19,130 INFO  L195           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:45:19,150 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0
[2023-12-22 04:45:19,340 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 04:45:19,341 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:45:19,341 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:45:19,342 INFO  L85        PathProgramCache]: Analyzing trace with hash -1137126808, now seen corresponding path program 1 times
[2023-12-22 04:45:19,355 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:45:19,355 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426661627]
[2023-12-22 04:45:19,355 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:45:19,355 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:45:19,355 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:45:19,377 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 04:45:19,378 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 04:45:20,517 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:45:20,528 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3012 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-22 04:45:20,546 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:45:23,013 INFO  L134       CoverageAnalysis]: Checked inductivity of 2814 backedges. 2121 proven. 199 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked.
[2023-12-22 04:45:23,013 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 04:45:24,997 INFO  L134       CoverageAnalysis]: Checked inductivity of 2814 backedges. 2121 proven. 199 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked.
[2023-12-22 04:45:24,997 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:45:24,997 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426661627]
[2023-12-22 04:45:24,997 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [426661627] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-22 04:45:24,997 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-22 04:45:24,998 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6
[2023-12-22 04:45:24,999 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688276578]
[2023-12-22 04:45:24,999 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-22 04:45:25,001 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-22 04:45:25,001 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:45:25,003 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-22 04:45:25,003 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-22 04:45:25,004 INFO  L87              Difference]: Start difference. First operand 384399 states and 393334 transitions. Second operand  has 6 states, 6 states have (on average 409.0) internal successors, (2454), 6 states have internal predecessors, (2454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:36,251 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:45:36,251 INFO  L93              Difference]: Finished difference Result 764634 states and 782477 transitions.
[2023-12-22 04:45:36,252 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-22 04:45:36,253 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 409.0) internal successors, (2454), 6 states have internal predecessors, (2454), 0 states have call successors, (0), 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 2854
[2023-12-22 04:45:36,253 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:45:36,778 INFO  L225             Difference]: With dead ends: 764634
[2023-12-22 04:45:36,778 INFO  L226             Difference]: Without dead ends: 381862
[2023-12-22 04:45:36,908 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5712 GetRequests, 5705 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72
[2023-12-22 04:45:36,909 INFO  L413           NwaCegarLoop]: 370 mSDtfsCounter, 10867 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 10992 mSolverCounterSat, 881 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10867 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 11873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 881 IncrementalHoareTripleChecker+Valid, 10992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time
[2023-12-22 04:45:36,909 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10867 Valid, 727 Invalid, 11873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [881 Valid, 10992 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time]
[2023-12-22 04:45:37,258 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 381862 states.
[2023-12-22 04:45:40,393 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 381862 to 380988.
[2023-12-22 04:45:40,559 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 380988 states, 380987 states have (on average 1.0230716533635007) internal successors, (389777), 380987 states have internal predecessors, (389777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:41,263 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 380988 states to 380988 states and 389777 transitions.
[2023-12-22 04:45:41,263 INFO  L78                 Accepts]: Start accepts. Automaton has 380988 states and 389777 transitions. Word has length 2854
[2023-12-22 04:45:41,264 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:45:41,264 INFO  L495      AbstractCegarLoop]: Abstraction has 380988 states and 389777 transitions.
[2023-12-22 04:45:41,265 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 409.0) internal successors, (2454), 6 states have internal predecessors, (2454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:41,265 INFO  L276                IsEmpty]: Start isEmpty. Operand 380988 states and 389777 transitions.
[2023-12-22 04:45:41,768 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2969
[2023-12-22 04:45:41,768 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:45:41,769 INFO  L195           NwaCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:45:41,774 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 (18)] Ended with exit code 0
[2023-12-22 04:45:41,974 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 04:45:41,974 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:45:41,975 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:45:41,975 INFO  L85        PathProgramCache]: Analyzing trace with hash -1058046850, now seen corresponding path program 1 times
[2023-12-22 04:45:41,987 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:45:41,987 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889244873]
[2023-12-22 04:45:41,988 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:45:41,988 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:45:41,988 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:45:41,989 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 04:45:42,012 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 04:45:42,789 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:45:42,802 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3095 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:45:42,817 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:45:42,946 INFO  L134       CoverageAnalysis]: Checked inductivity of 1820 backedges. 1379 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked.
[2023-12-22 04:45:42,946 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:45:42,946 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:45:42,946 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889244873]
[2023-12-22 04:45:42,946 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889244873] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:45:42,946 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:45:42,946 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:45:42,948 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748742520]
[2023-12-22 04:45:42,948 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:45:42,950 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:45:42,950 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:45:42,952 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:45:42,952 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:45:42,952 INFO  L87              Difference]: Start difference. First operand 380988 states and 389777 transitions. Second operand  has 3 states, 3 states have (on average 901.3333333333334) internal successors, (2704), 3 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:49,763 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:45:49,763 INFO  L93              Difference]: Finished difference Result 782428 states and 800260 transitions.
[2023-12-22 04:45:49,764 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:45:49,764 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 901.3333333333334) internal successors, (2704), 3 states have internal predecessors, (2704), 0 states have call successors, (0), 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 2968
[2023-12-22 04:45:49,765 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:45:50,680 INFO  L225             Difference]: With dead ends: 782428
[2023-12-22 04:45:50,681 INFO  L226             Difference]: Without dead ends: 401367
[2023-12-22 04:45:50,811 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2967 GetRequests, 2966 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:45:50,812 INFO  L413           NwaCegarLoop]: 3042 mSDtfsCounter, 1690 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 4541 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 3250 SdHoareTripleChecker+Invalid, 4671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 4541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time
[2023-12-22 04:45:50,812 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 3250 Invalid, 4671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 4541 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time]
[2023-12-22 04:45:51,113 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 401367 states.
[2023-12-22 04:45:54,419 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 401367 to 399665.
[2023-12-22 04:45:54,620 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 399665 states, 399664 states have (on average 1.02196344929741) internal successors, (408442), 399664 states have internal predecessors, (408442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:55,381 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 399665 states to 399665 states and 408442 transitions.
[2023-12-22 04:45:55,382 INFO  L78                 Accepts]: Start accepts. Automaton has 399665 states and 408442 transitions. Word has length 2968
[2023-12-22 04:45:55,382 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:45:55,383 INFO  L495      AbstractCegarLoop]: Abstraction has 399665 states and 408442 transitions.
[2023-12-22 04:45:55,383 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 901.3333333333334) internal successors, (2704), 3 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:45:55,383 INFO  L276                IsEmpty]: Start isEmpty. Operand 399665 states and 408442 transitions.
[2023-12-22 04:45:55,680 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3037
[2023-12-22 04:45:55,680 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:45:55,681 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2023-12-22 04:45:55,687 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0
[2023-12-22 04:45:55,887 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:45:55,887 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:45:55,887 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:45:55,888 INFO  L85        PathProgramCache]: Analyzing trace with hash -730444809, now seen corresponding path program 1 times
[2023-12-22 04:45:55,901 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:45:55,901 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585673553]
[2023-12-22 04:45:55,901 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:45:55,902 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:45:55,902 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:45:55,903 INFO  L229       MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:45:55,907 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process
[2023-12-22 04:45:57,055 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:45:57,070 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3151 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:45:57,088 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:45:57,163 INFO  L134       CoverageAnalysis]: Checked inductivity of 1945 backedges. 1620 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked.
[2023-12-22 04:45:57,164 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:45:57,164 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:45:57,164 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585673553]
[2023-12-22 04:45:57,164 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585673553] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:45:57,164 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:45:57,164 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:45:57,164 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658421657]
[2023-12-22 04:45:57,164 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:45:57,167 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:45:57,167 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:45:57,191 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:45:57,191 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:45:57,192 INFO  L87              Difference]: Start difference. First operand 399665 states and 408442 transitions. Second operand  has 3 states, 3 states have (on average 904.3333333333334) internal successors, (2713), 3 states have internal predecessors, (2713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:46:04,716 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:46:04,716 INFO  L93              Difference]: Finished difference Result 841841 states and 861495 transitions.
[2023-12-22 04:46:04,716 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:46:04,717 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 904.3333333333334) internal successors, (2713), 3 states have internal predecessors, (2713), 0 states have call successors, (0), 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 3036
[2023-12-22 04:46:04,717 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:46:05,869 INFO  L225             Difference]: With dead ends: 841841
[2023-12-22 04:46:05,870 INFO  L226             Difference]: Without dead ends: 433583
[2023-12-22 04:46:05,987 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3035 GetRequests, 3034 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:46:05,988 INFO  L413           NwaCegarLoop]: 2895 mSDtfsCounter, 1779 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 4454 mSolverCounterSat, 938 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 5392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 938 IncrementalHoareTripleChecker+Valid, 4454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time
[2023-12-22 04:46:05,988 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1779 Valid, 3076 Invalid, 5392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [938 Valid, 4454 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time]
[2023-12-22 04:46:06,281 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 433583 states.
[2023-12-22 04:46:09,802 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 433583 to 433567.
[2023-12-22 04:46:10,005 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 433567 states, 433566 states have (on average 1.016338919564726) internal successors, (440650), 433566 states have internal predecessors, (440650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:46:11,242 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 433567 states to 433567 states and 440650 transitions.
[2023-12-22 04:46:11,242 INFO  L78                 Accepts]: Start accepts. Automaton has 433567 states and 440650 transitions. Word has length 3036
[2023-12-22 04:46:11,243 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:46:11,243 INFO  L495      AbstractCegarLoop]: Abstraction has 433567 states and 440650 transitions.
[2023-12-22 04:46:11,244 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 904.3333333333334) internal successors, (2713), 3 states have internal predecessors, (2713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:46:11,244 INFO  L276                IsEmpty]: Start isEmpty. Operand 433567 states and 440650 transitions.
[2023-12-22 04:46:11,827 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3316
[2023-12-22 04:46:11,827 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:46:11,829 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:46:11,850 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0
[2023-12-22 04:46:12,034 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 04:46:12,034 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:46:12,035 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:46:12,035 INFO  L85        PathProgramCache]: Analyzing trace with hash 459625680, now seen corresponding path program 1 times
[2023-12-22 04:46:12,051 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:46:12,051 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718797033]
[2023-12-22 04:46:12,051 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:46:12,051 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:46:12,051 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:46:12,052 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 04:46:12,092 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process
[2023-12-22 04:46:13,109 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:46:13,122 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3418 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:46:13,140 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:46:15,019 INFO  L134       CoverageAnalysis]: Checked inductivity of 2550 backedges. 1920 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked.
[2023-12-22 04:46:15,019 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:46:15,019 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:46:15,019 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718797033]
[2023-12-22 04:46:15,019 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718797033] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:46:15,019 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:46:15,019 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:46:15,020 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217336621]
[2023-12-22 04:46:15,020 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:46:15,021 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:46:15,021 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:46:15,023 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:46:15,023 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:46:15,023 INFO  L87              Difference]: Start difference. First operand 433567 states and 440650 transitions. Second operand  has 3 states, 3 states have (on average 895.6666666666666) internal successors, (2687), 3 states have internal predecessors, (2687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:46:22,274 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:46:22,274 INFO  L93              Difference]: Finished difference Result 863806 states and 877958 transitions.
[2023-12-22 04:46:22,274 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:46:22,275 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 895.6666666666666) internal successors, (2687), 3 states have internal predecessors, (2687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3315
[2023-12-22 04:46:22,275 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:46:23,222 INFO  L225             Difference]: With dead ends: 863806
[2023-12-22 04:46:23,222 INFO  L226             Difference]: Without dead ends: 431866
[2023-12-22 04:46:23,464 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3314 GetRequests, 3313 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:46:23,465 INFO  L413           NwaCegarLoop]: 2525 mSDtfsCounter, 329 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 4410 mSolverCounterSat, 529 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 2753 SdHoareTripleChecker+Invalid, 4939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 529 IncrementalHoareTripleChecker+Valid, 4410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time
[2023-12-22 04:46:23,465 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 2753 Invalid, 4939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [529 Valid, 4410 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time]
[2023-12-22 04:46:23,762 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 431866 states.
[2023-12-22 04:46:27,246 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 431866 to 431863.
[2023-12-22 04:46:27,444 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 431863 states, 431862 states have (on average 1.0114851503489541) internal successors, (436822), 431862 states have internal predecessors, (436822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:46:28,406 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 431863 states to 431863 states and 436822 transitions.
[2023-12-22 04:46:28,406 INFO  L78                 Accepts]: Start accepts. Automaton has 431863 states and 436822 transitions. Word has length 3315
[2023-12-22 04:46:28,407 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:46:28,407 INFO  L495      AbstractCegarLoop]: Abstraction has 431863 states and 436822 transitions.
[2023-12-22 04:46:28,408 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 895.6666666666666) internal successors, (2687), 3 states have internal predecessors, (2687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:46:28,408 INFO  L276                IsEmpty]: Start isEmpty. Operand 431863 states and 436822 transitions.
[2023-12-22 04:46:29,011 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3372
[2023-12-22 04:46:29,011 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:46:29,013 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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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 04:46:29,032 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0
[2023-12-22 04:46:29,220 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:46:29,220 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:46:29,220 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:46:29,221 INFO  L85        PathProgramCache]: Analyzing trace with hash 528990005, now seen corresponding path program 1 times
[2023-12-22 04:46:29,237 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:46:29,237 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238044351]
[2023-12-22 04:46:29,237 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:46:29,237 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:46:29,237 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:46:29,238 INFO  L229       MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:46:29,252 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process
[2023-12-22 04:46:30,266 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:46:30,280 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3486 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:46:30,299 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:46:30,586 INFO  L134       CoverageAnalysis]: Checked inductivity of 2821 backedges. 2352 proven. 0 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked.
[2023-12-22 04:46:30,586 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:46:30,586 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:46:30,586 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238044351]
[2023-12-22 04:46:30,586 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [238044351] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:46:30,586 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:46:30,587 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:46:30,587 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205117441]
[2023-12-22 04:46:30,587 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:46:30,589 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:46:30,589 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:46:30,591 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:46:30,591 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:46:30,591 INFO  L87              Difference]: Start difference. First operand 431863 states and 436822 transitions. Second operand  has 3 states, 3 states have (on average 968.0) internal successors, (2904), 3 states have internal predecessors, (2904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:46:38,772 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:46:38,772 INFO  L93              Difference]: Finished difference Result 936845 states and 947712 transitions.
[2023-12-22 04:46:38,772 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:46:38,773 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 968.0) internal successors, (2904), 3 states have internal predecessors, (2904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3371
[2023-12-22 04:46:38,774 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:46:39,497 INFO  L225             Difference]: With dead ends: 936845
[2023-12-22 04:46:39,498 INFO  L226             Difference]: Without dead ends: 506608
[2023-12-22 04:46:39,696 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3370 GetRequests, 3369 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:46:39,697 INFO  L413           NwaCegarLoop]: 1217 mSDtfsCounter, 1575 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 4623 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 5190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 4623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time
[2023-12-22 04:46:39,698 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1575 Valid, 1384 Invalid, 5190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 4623 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time]
[2023-12-22 04:46:40,422 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 506608 states.
[2023-12-22 04:46:44,810 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 506608 to 491282.
[2023-12-22 04:46:45,062 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 491282 states, 491281 states have (on average 1.0099352509052864) internal successors, (496162), 491281 states have internal predecessors, (496162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:46:45,910 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 491282 states to 491282 states and 496162 transitions.
[2023-12-22 04:46:45,910 INFO  L78                 Accepts]: Start accepts. Automaton has 491282 states and 496162 transitions. Word has length 3371
[2023-12-22 04:46:45,911 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:46:45,917 INFO  L495      AbstractCegarLoop]: Abstraction has 491282 states and 496162 transitions.
[2023-12-22 04:46:45,918 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 968.0) internal successors, (2904), 3 states have internal predecessors, (2904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:46:45,918 INFO  L276                IsEmpty]: Start isEmpty. Operand 491282 states and 496162 transitions.
[2023-12-22 04:46:46,560 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3434
[2023-12-22 04:46:46,560 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:46:46,561 INFO  L195           NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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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[2023-12-22 04:46:46,567 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 (22)] Forceful destruction successful, exit code 0
[2023-12-22 04:46:46,766 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:46:46,767 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:46:46,767 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:46:46,768 INFO  L85        PathProgramCache]: Analyzing trace with hash -1190084259, now seen corresponding path program 1 times
[2023-12-22 04:46:46,782 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:46:46,782 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417298712]
[2023-12-22 04:46:46,782 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:46:46,783 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:46:46,783 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:46:46,783 INFO  L229       MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:46:46,785 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process