/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-programs/Problem101_label08.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 18:17:08,148 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 18:17:08,202 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 18:17:08,205 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 18:17:08,205 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 18:17:08,219 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 18:17:08,220 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 18:17:08,220 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 18:17:08,221 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 18:17:08,221 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 18:17:08,221 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 18:17:08,221 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 18:17:08,222 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 18:17:08,222 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 18:17:08,222 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 18:17:08,222 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 18:17:08,222 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 18:17:08,223 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 18:17:08,223 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 18:17:08,223 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 18:17:08,223 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 18:17:08,226 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 18:17:08,226 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 18:17:08,226 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 18:17:08,226 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 18:17:08,227 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 18:17:08,227 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 18:17:08,227 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 18:17:08,227 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 18:17:08,227 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 18:17:08,227 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 18:17:08,228 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 18:17:08,228 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 18:17:08,228 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 18:17:08,228 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 18:17:08,228 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 18:17:08,229 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 18:17:08,229 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 18:17:08,229 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 18:17:08,229 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 18:17:08,229 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 18:17:08,230 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 18:17:08,230 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 18:17:08,230 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 18:17:08,230 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 18:17:08,230 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 18:17:08,230 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 18:17:08,407 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 18:17:08,425 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 18:17:08,427 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 18:17:08,427 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 18:17:08,428 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 18:17:08,429 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-programs/Problem101_label08.c
[2023-12-22 18:17:09,425 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 18:17:10,697 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 18:17:10,697 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-programs/Problem101_label08.c
[2023-12-22 18:17:10,853 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fda7dc7ce/c3351a445e9f405ba7a34f8b0277ccf7/FLAG252daa2fa
[2023-12-22 18:17:10,887 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fda7dc7ce/c3351a445e9f405ba7a34f8b0277ccf7
[2023-12-22 18:17:10,889 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 18:17:10,890 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 18:17:10,900 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 18:17:10,900 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 18:17:10,915 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 18:17:10,915 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:17:10" (1/1) ...
[2023-12-22 18:17:10,919 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1854de34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:17:10, skipping insertion in model container
[2023-12-22 18:17:10,925 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:17:10" (1/1) ...
[2023-12-22 18:17:11,469 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 18:17:18,177 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-programs/Problem101_label08.c[2767137,2767150]
[2023-12-22 18:17:18,223 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 18:17:18,231 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 18:17:22,276 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-programs/Problem101_label08.c[2767137,2767150]
[2023-12-22 18:17:22,285 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 18:17:22,720 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 18:17:22,720 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:17:22 WrapperNode
[2023-12-22 18:17:22,721 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 18:17:22,721 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 18:17:22,721 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 18:17:22,721 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 18:17:22,725 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:17:22" (1/1) ...
[2023-12-22 18:17:23,321 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:17:22" (1/1) ...
[2023-12-22 18:17:25,218 INFO  L138                Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83779
[2023-12-22 18:17:25,218 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 18:17:25,219 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 18:17:25,219 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 18:17:25,219 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 18:17:25,227 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:17:22" (1/1) ...
[2023-12-22 18:17:25,227 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:17:22" (1/1) ...
[2023-12-22 18:17:25,690 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:17:22" (1/1) ...
[2023-12-22 18:17:25,922 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 18:17:25,922 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:17:22" (1/1) ...
[2023-12-22 18:17:25,922 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:17:22" (1/1) ...
[2023-12-22 18:17:26,726 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:17:22" (1/1) ...
[2023-12-22 18:17:26,849 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:17:22" (1/1) ...
[2023-12-22 18:17:26,927 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:17:22" (1/1) ...
[2023-12-22 18:17:27,006 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:17:22" (1/1) ...
[2023-12-22 18:17:27,428 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 18:17:27,429 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 18:17:27,429 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 18:17:27,429 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 18:17:27,429 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:17:22" (1/1) ...
[2023-12-22 18:17:27,439 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 18:17:27,447 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 18:17:27,480 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 18:17:27,488 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 18:17:27,503 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 18:17:27,503 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 18:17:27,503 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 18:17:27,504 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 18:17:27,632 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 18:17:27,634 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 18:18:13,428 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 18:18:13,760 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 18:18:13,760 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 18:18:13,761 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:18:13 BoogieIcfgContainer
[2023-12-22 18:18:13,761 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 18:18:13,764 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 18:18:13,764 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 18:18:13,766 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 18:18:13,767 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:17:10" (1/3) ...
[2023-12-22 18:18:13,768 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9a7b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:18:13, skipping insertion in model container
[2023-12-22 18:18:13,768 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:17:22" (2/3) ...
[2023-12-22 18:18:13,768 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9a7b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:18:13, skipping insertion in model container
[2023-12-22 18:18:13,768 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:18:13" (3/3) ...
[2023-12-22 18:18:13,770 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem101_label08.c
[2023-12-22 18:18:13,785 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 18:18:13,785 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 18:18:13,934 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 18:18:13,939 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;@4bde0d7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 18:18:13,940 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 18:18:13,972 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 10195 states, 10193 states have (on average 1.9952908859020897) internal successors, (20338), 10194 states have internal predecessors, (20338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:18:14,803 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10090
[2023-12-22 18:18:14,803 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:18:14,808 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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[2023-12-22 18:18:14,809 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:18:14,812 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:18:14,816 INFO  L85        PathProgramCache]: Analyzing trace with hash 1931555707, now seen corresponding path program 1 times
[2023-12-22 18:18:14,916 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:18:14,916 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402927206]
[2023-12-22 18:18:14,918 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:18:14,918 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 18:18:14,918 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:18:14,920 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 18:18:14,921 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 18:18:18,851 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:18:18,975 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10232 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 18:18:19,120 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:18:19,461 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 18:18:19,461 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:18:19,462 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:18:19,462 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402927206]
[2023-12-22 18:18:19,463 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402927206] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:18:19,463 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:18:19,464 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:18:19,465 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789472897]
[2023-12-22 18:18:19,465 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:18:19,478 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 18:18:19,478 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:18:19,508 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 18:18:19,509 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 18:18:19,543 INFO  L87              Difference]: Start difference. First operand  has 10195 states, 10193 states have (on average 1.9952908859020897) internal successors, (20338), 10194 states have internal predecessors, (20338), 0 states have call successors, (0), 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 5044.5) internal successors, (10089), 2 states have internal predecessors, (10089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:18:19,809 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:18:19,809 INFO  L93              Difference]: Finished difference Result 20389 states and 40675 transitions.
[2023-12-22 18:18:19,810 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 18:18:19,816 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 5044.5) internal successors, (10089), 2 states have internal predecessors, (10089), 0 states have call successors, (0), 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 10089
[2023-12-22 18:18:19,830 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:18:19,876 INFO  L225             Difference]: With dead ends: 20389
[2023-12-22 18:18:19,877 INFO  L226             Difference]: Without dead ends: 10193
[2023-12-22 18:18:19,895 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10088 GetRequests, 10088 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 18:18:19,897 INFO  L413           NwaCegarLoop]: 20273 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, 20273 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 18:18:19,898 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20273 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-22 18:18:19,920 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10193 states.
[2023-12-22 18:18:20,105 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10193 to 10193.
[2023-12-22 18:18:20,131 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10193 states, 10192 states have (on average 1.9891091051805339) internal successors, (20273), 10192 states have internal predecessors, (20273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:18:20,150 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10193 states to 10193 states and 20273 transitions.
[2023-12-22 18:18:20,151 INFO  L78                 Accepts]: Start accepts. Automaton has 10193 states and 20273 transitions. Word has length 10089
[2023-12-22 18:18:20,167 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:18:20,168 INFO  L495      AbstractCegarLoop]: Abstraction has 10193 states and 20273 transitions.
[2023-12-22 18:18:20,173 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 5044.5) internal successors, (10089), 2 states have internal predecessors, (10089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:18:20,173 INFO  L276                IsEmpty]: Start isEmpty. Operand 10193 states and 20273 transitions.
[2023-12-22 18:18:20,820 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10090
[2023-12-22 18:18:20,821 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:18:20,824 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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[2023-12-22 18:18:20,841 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-22 18:18:21,041 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 18:18:21,042 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:18:21,042 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:18:21,046 INFO  L85        PathProgramCache]: Analyzing trace with hash 1914064546, now seen corresponding path program 1 times
[2023-12-22 18:18:21,116 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:18:21,116 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1275508009]
[2023-12-22 18:18:21,118 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:18:21,118 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 18:18:21,118 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:18:21,119 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 18:18:21,121 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 18:18:24,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:18:24,652 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10232 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:18:24,757 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:18:36,706 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 18:18:36,706 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:18:36,706 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:18:36,706 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1275508009]
[2023-12-22 18:18:36,707 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1275508009] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:18:36,707 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:18:36,708 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:18:36,708 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133824752]
[2023-12-22 18:18:36,708 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:18:36,717 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:18:36,717 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:18:36,724 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:18:36,725 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:18:36,729 INFO  L87              Difference]: Start difference. First operand 10193 states and 20273 transitions. Second operand  has 3 states, 3 states have (on average 3363.0) internal successors, (10089), 2 states have internal predecessors, (10089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:19:28,225 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:19:28,226 INFO  L93              Difference]: Finished difference Result 30575 states and 60816 transitions.
[2023-12-22 18:19:28,226 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:19:28,229 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3363.0) internal successors, (10089), 2 states have internal predecessors, (10089), 0 states have call successors, (0), 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 10089
[2023-12-22 18:19:28,258 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:19:28,341 INFO  L225             Difference]: With dead ends: 30575
[2023-12-22 18:19:28,341 INFO  L226             Difference]: Without dead ends: 20383
[2023-12-22 18:19:28,351 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10088 GetRequests, 10087 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 18:19:28,352 INFO  L413           NwaCegarLoop]: 5063 mSDtfsCounter, 1980 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 33508 mSolverCounterSat, 7005 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1980 SdHoareTripleChecker+Valid, 5113 SdHoareTripleChecker+Invalid, 40513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7005 IncrementalHoareTripleChecker+Valid, 33508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.8s IncrementalHoareTripleChecker+Time
[2023-12-22 18:19:28,353 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1980 Valid, 5113 Invalid, 40513 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7005 Valid, 33508 Invalid, 0 Unknown, 0 Unchecked, 50.8s Time]
[2023-12-22 18:19:28,377 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20383 states.
[2023-12-22 18:19:28,651 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20383 to 20383.
[2023-12-22 18:19:28,679 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20383 states, 20382 states have (on average 1.7445294868020802) internal successors, (35557), 20382 states have internal predecessors, (35557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:19:28,708 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20383 states to 20383 states and 35557 transitions.
[2023-12-22 18:19:28,708 INFO  L78                 Accepts]: Start accepts. Automaton has 20383 states and 35557 transitions. Word has length 10089
[2023-12-22 18:19:28,716 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:19:28,716 INFO  L495      AbstractCegarLoop]: Abstraction has 20383 states and 35557 transitions.
[2023-12-22 18:19:28,718 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3363.0) internal successors, (10089), 2 states have internal predecessors, (10089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:19:28,718 INFO  L276                IsEmpty]: Start isEmpty. Operand 20383 states and 35557 transitions.
[2023-12-22 18:19:29,234 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10094
[2023-12-22 18:19:29,234 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:19:29,237 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-22 18:19:29,254 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-22 18:19:29,446 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 18:19:29,447 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:19:29,448 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:19:29,450 INFO  L85        PathProgramCache]: Analyzing trace with hash 759277258, now seen corresponding path program 1 times
[2023-12-22 18:19:29,520 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:19:29,520 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076172443]
[2023-12-22 18:19:29,522 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:19:29,522 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 18:19:29,522 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:19:29,523 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 18:19:29,524 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 18:19:33,064 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:19:33,182 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10262 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:19:33,282 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:19:33,386 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 18:19:33,387 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:19:33,387 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:19:33,390 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076172443]
[2023-12-22 18:19:33,390 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076172443] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:19:33,390 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:19:33,391 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:19:33,392 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998678158]
[2023-12-22 18:19:33,394 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:19:33,404 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:19:33,405 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:19:33,411 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:19:33,411 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:19:33,415 INFO  L87              Difference]: Start difference. First operand 20383 states and 35557 transitions. Second operand  has 3 states, 3 states have (on average 3364.3333333333335) internal successors, (10093), 2 states have internal predecessors, (10093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:20:23,784 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:20:23,785 INFO  L93              Difference]: Finished difference Result 61145 states and 106668 transitions.
[2023-12-22 18:20:23,785 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:20:23,787 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3364.3333333333335) internal successors, (10093), 2 states have internal predecessors, (10093), 0 states have call successors, (0), 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 10093
[2023-12-22 18:20:23,787 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:20:23,855 INFO  L225             Difference]: With dead ends: 61145
[2023-12-22 18:20:23,856 INFO  L226             Difference]: Without dead ends: 40763
[2023-12-22 18:20:23,885 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10092 GetRequests, 10091 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 18:20:23,885 INFO  L413           NwaCegarLoop]: 5083 mSDtfsCounter, 13140 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29482 mSolverCounterSat, 11039 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13140 SdHoareTripleChecker+Valid, 5132 SdHoareTripleChecker+Invalid, 40521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11039 IncrementalHoareTripleChecker+Valid, 29482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.5s IncrementalHoareTripleChecker+Time
[2023-12-22 18:20:23,886 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13140 Valid, 5132 Invalid, 40521 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11039 Valid, 29482 Invalid, 0 Unknown, 0 Unchecked, 49.5s Time]
[2023-12-22 18:20:23,932 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40763 states.
[2023-12-22 18:20:24,496 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40763 to 40763.
[2023-12-22 18:20:24,547 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40763 states, 40762 states have (on average 1.5601295324076345) internal successors, (63594), 40762 states have internal predecessors, (63594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:20:24,595 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40763 states to 40763 states and 63594 transitions.
[2023-12-22 18:20:24,595 INFO  L78                 Accepts]: Start accepts. Automaton has 40763 states and 63594 transitions. Word has length 10093
[2023-12-22 18:20:24,596 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:20:24,596 INFO  L495      AbstractCegarLoop]: Abstraction has 40763 states and 63594 transitions.
[2023-12-22 18:20:24,598 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3364.3333333333335) internal successors, (10093), 2 states have internal predecessors, (10093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:20:24,599 INFO  L276                IsEmpty]: Start isEmpty. Operand 40763 states and 63594 transitions.
[2023-12-22 18:20:25,397 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10095
[2023-12-22 18:20:25,398 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:20:25,401 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-22 18:20:25,422 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0
[2023-12-22 18:20:25,602 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 18:20:25,602 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:20:25,607 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:20:25,609 INFO  L85        PathProgramCache]: Analyzing trace with hash -829273542, now seen corresponding path program 1 times
[2023-12-22 18:20:25,677 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:20:25,678 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969826293]
[2023-12-22 18:20:25,679 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:20:25,679 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 18:20:25,680 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:20:25,681 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 18:20:25,684 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-22 18:20:29,324 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:20:29,439 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10261 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:20:29,522 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:20:29,619 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 18:20:29,620 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:20:29,620 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:20:29,622 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969826293]
[2023-12-22 18:20:29,622 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1969826293] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:20:29,622 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:20:29,623 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:20:29,623 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837647361]
[2023-12-22 18:20:29,623 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:20:29,632 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:20:29,634 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:20:29,640 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:20:29,643 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:20:29,647 INFO  L87              Difference]: Start difference. First operand 40763 states and 63594 transitions. Second operand  has 3 states, 3 states have (on average 3364.6666666666665) internal successors, (10094), 2 states have internal predecessors, (10094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:21:22,062 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:21:22,062 INFO  L93              Difference]: Finished difference Result 122285 states and 190779 transitions.
[2023-12-22 18:21:22,063 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:21:22,066 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3364.6666666666665) internal successors, (10094), 2 states have internal predecessors, (10094), 0 states have call successors, (0), 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 10094
[2023-12-22 18:21:22,066 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:21:22,211 INFO  L225             Difference]: With dead ends: 122285
[2023-12-22 18:21:22,211 INFO  L226             Difference]: Without dead ends: 81523
[2023-12-22 18:21:22,239 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10093 GetRequests, 10092 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 18:21:22,241 INFO  L413           NwaCegarLoop]: 8749 mSDtfsCounter, 11052 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30123 mSolverCounterSat, 11677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11052 SdHoareTripleChecker+Valid, 8798 SdHoareTripleChecker+Invalid, 41800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11677 IncrementalHoareTripleChecker+Valid, 30123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.2s IncrementalHoareTripleChecker+Time
[2023-12-22 18:21:22,242 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11052 Valid, 8798 Invalid, 41800 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11677 Valid, 30123 Invalid, 0 Unknown, 0 Unchecked, 51.2s Time]
[2023-12-22 18:21:22,306 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 81523 states.
[2023-12-22 18:21:23,099 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 81523 to 81523.
[2023-12-22 18:21:23,179 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81523 states, 81522 states have (on average 1.4289148941390055) internal successors, (116488), 81522 states have internal predecessors, (116488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:21:23,282 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81523 states to 81523 states and 116488 transitions.
[2023-12-22 18:21:23,282 INFO  L78                 Accepts]: Start accepts. Automaton has 81523 states and 116488 transitions. Word has length 10094
[2023-12-22 18:21:23,283 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:21:23,283 INFO  L495      AbstractCegarLoop]: Abstraction has 81523 states and 116488 transitions.
[2023-12-22 18:21:23,286 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3364.6666666666665) internal successors, (10094), 2 states have internal predecessors, (10094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:21:23,286 INFO  L276                IsEmpty]: Start isEmpty. Operand 81523 states and 116488 transitions.
[2023-12-22 18:21:24,210 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10101
[2023-12-22 18:21:24,210 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:21:24,213 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-22 18:21:24,230 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-12-22 18:21:24,428 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 18:21:24,428 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:21:24,429 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:21:24,661 INFO  L85        PathProgramCache]: Analyzing trace with hash -728380629, now seen corresponding path program 1 times
[2023-12-22 18:21:24,724 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:21:24,725 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131529064]
[2023-12-22 18:21:24,726 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:21:24,726 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 18:21:24,726 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:21:24,727 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 18:21:24,727 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 18:21:28,389 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:21:28,489 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10268 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:21:28,590 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:21:39,147 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 18:21:39,147 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:21:39,147 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:21:39,147 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131529064]
[2023-12-22 18:21:39,147 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131529064] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:21:39,147 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:21:39,149 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 18:21:39,149 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857331074]
[2023-12-22 18:21:39,149 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:21:39,157 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:21:39,157 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:21:39,163 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:21:39,163 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:21:39,166 INFO  L87              Difference]: Start difference. First operand 81523 states and 116488 transitions. Second operand  has 3 states, 3 states have (on average 3366.6666666666665) internal successors, (10100), 3 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:22:25,989 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:22:25,989 INFO  L93              Difference]: Finished difference Result 244565 states and 349461 transitions.
[2023-12-22 18:22:25,990 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:22:25,992 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3366.6666666666665) internal successors, (10100), 3 states have internal predecessors, (10100), 0 states have call successors, (0), 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 10100
[2023-12-22 18:22:26,000 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:22:26,224 INFO  L225             Difference]: With dead ends: 244565
[2023-12-22 18:22:26,224 INFO  L226             Difference]: Without dead ends: 163043
[2023-12-22 18:22:26,271 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10099 GetRequests, 10098 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 18:22:26,272 INFO  L413           NwaCegarLoop]: 16142 mSDtfsCounter, 2040 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 31118 mSolverCounterSat, 9654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2040 SdHoareTripleChecker+Valid, 16192 SdHoareTripleChecker+Invalid, 40772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9654 IncrementalHoareTripleChecker+Valid, 31118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.6s IncrementalHoareTripleChecker+Time
[2023-12-22 18:22:26,272 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2040 Valid, 16192 Invalid, 40772 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9654 Valid, 31118 Invalid, 0 Unknown, 0 Unchecked, 45.6s Time]
[2023-12-22 18:22:26,389 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 163043 states.
[2023-12-22 18:22:28,078 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 163043 to 163043.
[2023-12-22 18:22:28,209 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 163043 states, 163042 states have (on average 1.3146305859839795) internal successors, (214340), 163042 states have internal predecessors, (214340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:22:28,725 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 163043 states to 163043 states and 214340 transitions.
[2023-12-22 18:22:28,725 INFO  L78                 Accepts]: Start accepts. Automaton has 163043 states and 214340 transitions. Word has length 10100
[2023-12-22 18:22:28,731 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:22:28,731 INFO  L495      AbstractCegarLoop]: Abstraction has 163043 states and 214340 transitions.
[2023-12-22 18:22:28,733 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3366.6666666666665) internal successors, (10100), 3 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:22:28,733 INFO  L276                IsEmpty]: Start isEmpty. Operand 163043 states and 214340 transitions.
[2023-12-22 18:22:29,750 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10106
[2023-12-22 18:22:29,752 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:22:29,776 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-22 18:22:29,808 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2023-12-22 18:22:29,994 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 18:22:29,995 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:22:29,995 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:22:29,997 INFO  L85        PathProgramCache]: Analyzing trace with hash -1507312815, now seen corresponding path program 1 times
[2023-12-22 18:22:30,091 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:22:30,091 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320452329]
[2023-12-22 18:22:30,092 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:22:30,092 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 18:22:30,092 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:22:30,093 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 18:22:30,095 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 18:22:33,638 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:22:33,740 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10297 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:22:33,810 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:22:33,908 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2023-12-22 18:22:33,908 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:22:33,908 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:22:33,908 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320452329]
[2023-12-22 18:22:33,908 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [320452329] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:22:33,909 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:22:33,909 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:22:33,910 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86560967]
[2023-12-22 18:22:33,910 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:22:33,919 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:22:33,919 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:22:33,928 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:22:33,928 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:22:33,930 INFO  L87              Difference]: Start difference. First operand 163043 states and 214340 transitions. Second operand  has 3 states, 3 states have (on average 3367.0) internal successors, (10101), 2 states have internal predecessors, (10101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:23:15,252 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:23:15,253 INFO  L93              Difference]: Finished difference Result 326085 states and 428679 transitions.
[2023-12-22 18:23:15,253 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:23:15,255 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3367.0) internal successors, (10101), 2 states have internal predecessors, (10101), 0 states have call successors, (0), 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 10105
[2023-12-22 18:23:15,255 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:23:15,449 INFO  L225             Difference]: With dead ends: 326085
[2023-12-22 18:23:15,449 INFO  L226             Difference]: Without dead ends: 163043
[2023-12-22 18:23:15,510 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10104 GetRequests, 10103 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 18:23:15,511 INFO  L413           NwaCegarLoop]: 4841 mSDtfsCounter, 13369 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29945 mSolverCounterSat, 7314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13369 SdHoareTripleChecker+Valid, 4890 SdHoareTripleChecker+Invalid, 37259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7314 IncrementalHoareTripleChecker+Valid, 29945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.0s IncrementalHoareTripleChecker+Time
[2023-12-22 18:23:15,511 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13369 Valid, 4890 Invalid, 37259 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7314 Valid, 29945 Invalid, 0 Unknown, 0 Unchecked, 40.0s Time]
[2023-12-22 18:23:15,624 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 163043 states.
[2023-12-22 18:23:16,904 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 163043 to 163043.
[2023-12-22 18:23:17,242 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 163043 states, 163042 states have (on average 1.2147544804406227) internal successors, (198056), 163042 states have internal predecessors, (198056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:23:17,414 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 163043 states to 163043 states and 198056 transitions.
[2023-12-22 18:23:17,414 INFO  L78                 Accepts]: Start accepts. Automaton has 163043 states and 198056 transitions. Word has length 10105
[2023-12-22 18:23:17,414 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:23:17,414 INFO  L495      AbstractCegarLoop]: Abstraction has 163043 states and 198056 transitions.
[2023-12-22 18:23:17,416 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3367.0) internal successors, (10101), 2 states have internal predecessors, (10101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:23:17,417 INFO  L276                IsEmpty]: Start isEmpty. Operand 163043 states and 198056 transitions.
[2023-12-22 18:23:18,403 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10123
[2023-12-22 18:23:18,403 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:23:18,414 INFO  L195           NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-12-22 18:23:18,430 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 18:23:18,624 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 18:23:18,625 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:23:18,625 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:23:18,626 INFO  L85        PathProgramCache]: Analyzing trace with hash -709205426, now seen corresponding path program 1 times
[2023-12-22 18:23:18,693 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:23:18,694 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [358260133]
[2023-12-22 18:23:18,695 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:23:18,695 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 18:23:18,695 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:23:18,696 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 18:23:18,698 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 18:23:22,132 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:23:22,225 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10316 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:23:22,284 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:23:22,398 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2023-12-22 18:23:22,399 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:23:22,399 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:23:22,399 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [358260133]
[2023-12-22 18:23:22,399 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [358260133] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:23:22,399 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:23:22,400 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:23:22,400 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668706046]
[2023-12-22 18:23:22,400 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:23:22,404 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:23:22,405 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:23:22,409 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:23:22,409 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:23:22,410 INFO  L87              Difference]: Start difference. First operand 163043 states and 198056 transitions. Second operand  has 3 states, 3 states have (on average 3372.6666666666665) internal successors, (10118), 2 states have internal predecessors, (10118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:24:13,723 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:24:13,724 INFO  L93              Difference]: Finished difference Result 489125 states and 594165 transitions.
[2023-12-22 18:24:13,724 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:24:13,726 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3372.6666666666665) internal successors, (10118), 2 states have internal predecessors, (10118), 0 states have call successors, (0), 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 10122
[2023-12-22 18:24:13,726 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:24:14,514 INFO  L225             Difference]: With dead ends: 489125
[2023-12-22 18:24:14,514 INFO  L226             Difference]: Without dead ends: 326083
[2023-12-22 18:24:14,693 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10121 GetRequests, 10120 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 18:24:14,694 INFO  L413           NwaCegarLoop]: 5851 mSDtfsCounter, 13636 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27475 mSolverCounterSat, 13030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13636 SdHoareTripleChecker+Valid, 5900 SdHoareTripleChecker+Invalid, 40505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13030 IncrementalHoareTripleChecker+Valid, 27475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.9s IncrementalHoareTripleChecker+Time
[2023-12-22 18:24:14,694 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13636 Valid, 5900 Invalid, 40505 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13030 Valid, 27475 Invalid, 0 Unknown, 0 Unchecked, 48.9s Time]
[2023-12-22 18:24:14,974 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 326083 states.
[2023-12-22 18:24:18,798 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 326083 to 326083.
[2023-12-22 18:24:19,149 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 326083 states, 326082 states have (on average 1.155267693402273) internal successors, (376712), 326082 states have internal predecessors, (376712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:24:20,222 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 326083 states to 326083 states and 376712 transitions.
[2023-12-22 18:24:20,222 INFO  L78                 Accepts]: Start accepts. Automaton has 326083 states and 376712 transitions. Word has length 10122
[2023-12-22 18:24:20,223 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:24:20,223 INFO  L495      AbstractCegarLoop]: Abstraction has 326083 states and 376712 transitions.
[2023-12-22 18:24:20,225 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3372.6666666666665) internal successors, (10118), 2 states have internal predecessors, (10118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:24:20,225 INFO  L276                IsEmpty]: Start isEmpty. Operand 326083 states and 376712 transitions.
[2023-12-22 18:24:21,638 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10140
[2023-12-22 18:24:21,638 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:24:21,640 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-22 18:24:21,661 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0
[2023-12-22 18:24:21,858 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 18:24:21,859 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:24:21,860 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:24:21,861 INFO  L85        PathProgramCache]: Analyzing trace with hash -1600038473, now seen corresponding path program 1 times
[2023-12-22 18:24:21,994 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:24:21,994 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100751712]
[2023-12-22 18:24:21,995 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:24:21,995 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 18:24:21,995 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:24:21,996 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 18:24:21,998 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 18:24:26,346 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:24:26,446 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10307 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:24:26,509 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:24:26,689 INFO  L134       CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 18:24:26,690 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:24:26,690 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:24:26,690 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100751712]
[2023-12-22 18:24:26,690 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100751712] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:24:26,690 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:24:26,691 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:24:26,691 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344150090]
[2023-12-22 18:24:26,691 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:24:26,696 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:24:26,696 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:24:26,700 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:24:26,700 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:24:26,702 INFO  L87              Difference]: Start difference. First operand 326083 states and 376712 transitions. Second operand  has 3 states, 3 states have (on average 3379.6666666666665) internal successors, (10139), 2 states have internal predecessors, (10139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:25:24,287 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:25:24,287 INFO  L93              Difference]: Finished difference Result 978245 states and 1130133 transitions.
[2023-12-22 18:25:24,288 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:25:24,290 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3379.6666666666665) internal successors, (10139), 2 states have internal predecessors, (10139), 0 states have call successors, (0), 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 10139
[2023-12-22 18:25:24,290 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:25:25,426 INFO  L225             Difference]: With dead ends: 978245
[2023-12-22 18:25:25,427 INFO  L226             Difference]: Without dead ends: 652163
[2023-12-22 18:25:25,588 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10138 GetRequests, 10137 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 18:25:25,589 INFO  L413           NwaCegarLoop]: 7772 mSDtfsCounter, 11468 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30653 mSolverCounterSat, 11059 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11468 SdHoareTripleChecker+Valid, 7821 SdHoareTripleChecker+Invalid, 41712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 11059 IncrementalHoareTripleChecker+Valid, 30653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.2s IncrementalHoareTripleChecker+Time
[2023-12-22 18:25:25,589 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11468 Valid, 7821 Invalid, 41712 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [11059 Valid, 30653 Invalid, 0 Unknown, 0 Unchecked, 53.2s Time]
[2023-12-22 18:25:26,095 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 652163 states.
[2023-12-22 18:25:32,834 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 652163 to 652163.
[2023-12-22 18:25:33,250 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 652163 states, 652162 states have (on average 1.1194979161619352) internal successors, (730094), 652162 states have internal predecessors, (730094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:25:34,957 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 652163 states to 652163 states and 730094 transitions.
[2023-12-22 18:25:34,958 INFO  L78                 Accepts]: Start accepts. Automaton has 652163 states and 730094 transitions. Word has length 10139
[2023-12-22 18:25:34,958 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:25:34,958 INFO  L495      AbstractCegarLoop]: Abstraction has 652163 states and 730094 transitions.
[2023-12-22 18:25:34,961 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3379.6666666666665) internal successors, (10139), 2 states have internal predecessors, (10139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:25:34,961 INFO  L276                IsEmpty]: Start isEmpty. Operand 652163 states and 730094 transitions.
[2023-12-22 18:25:36,640 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10154
[2023-12-22 18:25:36,640 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:25:36,642 INFO  L195           NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-12-22 18:25:36,664 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 (9)] Ended with exit code 0
[2023-12-22 18:25:36,842 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 18:25:36,843 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:25:36,843 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:25:36,844 INFO  L85        PathProgramCache]: Analyzing trace with hash 1840460665, now seen corresponding path program 1 times
[2023-12-22 18:25:36,910 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:25:36,910 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873659529]
[2023-12-22 18:25:36,912 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:25:36,912 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 18:25:36,912 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:25:36,913 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 18:25:36,914 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 18:25:40,547 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:25:40,645 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10341 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:25:40,710 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:25:40,861 INFO  L134       CoverageAnalysis]: Checked inductivity of 83 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2023-12-22 18:25:40,862 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:25:40,862 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:25:40,862 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873659529]
[2023-12-22 18:25:40,862 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [873659529] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:25:40,862 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:25:40,863 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:25:40,863 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096519724]
[2023-12-22 18:25:40,863 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:25:40,867 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:25:40,868 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:25:40,872 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:25:40,872 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:25:40,873 INFO  L87              Difference]: Start difference. First operand 652163 states and 730094 transitions. Second operand  has 3 states, 3 states have (on average 3377.6666666666665) internal successors, (10133), 2 states have internal predecessors, (10133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:26:40,959 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:26:40,959 INFO  L93              Difference]: Finished difference Result 1956485 states and 2190279 transitions.
[2023-12-22 18:26:40,960 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:26:40,962 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3377.6666666666665) internal successors, (10133), 2 states have internal predecessors, (10133), 0 states have call successors, (0), 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 10153
[2023-12-22 18:26:40,962 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:26:43,135 INFO  L225             Difference]: With dead ends: 1956485
[2023-12-22 18:26:43,135 INFO  L226             Difference]: Without dead ends: 1304323
[2023-12-22 18:26:43,778 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10152 GetRequests, 10151 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 18:26:43,781 INFO  L413           NwaCegarLoop]: 7679 mSDtfsCounter, 11740 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29471 mSolverCounterSat, 11758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11740 SdHoareTripleChecker+Valid, 7728 SdHoareTripleChecker+Invalid, 41229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11758 IncrementalHoareTripleChecker+Valid, 29471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.9s IncrementalHoareTripleChecker+Time
[2023-12-22 18:26:43,781 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11740 Valid, 7728 Invalid, 41229 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11758 Valid, 29471 Invalid, 0 Unknown, 0 Unchecked, 52.9s Time]
[2023-12-22 18:26:44,774 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1304323 states.