/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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-49.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 02:33:37,329 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 02:33:37,394 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-23 02:33:37,399 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 02:33:37,400 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 02:33:37,421 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 02:33:37,421 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 02:33:37,422 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 02:33:37,422 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 02:33:37,422 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 02:33:37,422 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 02:33:37,423 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 02:33:37,423 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 02:33:37,423 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 02:33:37,424 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 02:33:37,424 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 02:33:37,424 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 02:33:37,424 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 02:33:37,425 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 02:33:37,425 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 02:33:37,425 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 02:33:37,427 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 02:33:37,427 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 02:33:37,428 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 02:33:37,428 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 02:33:37,428 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 02:33:37,428 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 02:33:37,428 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 02:33:37,428 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 02:33:37,429 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 02:33:37,429 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 02:33:37,429 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 02:33:37,429 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 02:33:37,429 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 02:33:37,429 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 02:33:37,430 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 02:33:37,430 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 02:33:37,430 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 02:33:37,430 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 02:33:37,430 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 02:33:37,430 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 02:33:37,432 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 02:33:37,432 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 02:33:37,432 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 02:33:37,433 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 02:33:37,433 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 02:33:37,433 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 02:33:37,614 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 02:33:37,628 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 02:33:37,630 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 02:33:37,630 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 02:33:37,633 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 02:33:37,633 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-49.i
[2023-12-23 02:33:38,715 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 02:33:38,917 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 02:33:38,917 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-49.i
[2023-12-23 02:33:38,937 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f8419bf/7adefc8faff14517bb759977fbbe702f/FLAGba67bcd94
[2023-12-23 02:33:38,949 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f8419bf/7adefc8faff14517bb759977fbbe702f
[2023-12-23 02:33:38,951 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 02:33:38,952 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 02:33:38,953 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 02:33:38,953 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 02:33:38,956 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 02:33:38,956 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:33:38" (1/1) ...
[2023-12-23 02:33:38,957 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59f6b462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:33:38, skipping insertion in model container
[2023-12-23 02:33:38,957 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:33:38" (1/1) ...
[2023-12-23 02:33:38,996 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 02:33:39,105 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-49.i[916,929]
[2023-12-23 02:33:39,243 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 02:33:39,267 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 02:33:39,275 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-49.i[916,929]
[2023-12-23 02:33:39,347 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 02:33:39,360 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 02:33:39,361 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:33:39 WrapperNode
[2023-12-23 02:33:39,361 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 02:33:39,362 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 02:33:39,362 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 02:33:39,362 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 02:33:39,376 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:33:39" (1/1) ...
[2023-12-23 02:33:39,398 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:33:39" (1/1) ...
[2023-12-23 02:33:39,449 INFO  L138                Inliner]: procedures = 27, calls = 92, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 461
[2023-12-23 02:33:39,450 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 02:33:39,450 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 02:33:39,450 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 02:33:39,450 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 02:33:39,458 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:33:39" (1/1) ...
[2023-12-23 02:33:39,458 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:33:39" (1/1) ...
[2023-12-23 02:33:39,464 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:33:39" (1/1) ...
[2023-12-23 02:33:39,483 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].
[2023-12-23 02:33:39,483 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:33:39" (1/1) ...
[2023-12-23 02:33:39,483 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:33:39" (1/1) ...
[2023-12-23 02:33:39,504 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:33:39" (1/1) ...
[2023-12-23 02:33:39,511 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:33:39" (1/1) ...
[2023-12-23 02:33:39,515 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:33:39" (1/1) ...
[2023-12-23 02:33:39,517 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:33:39" (1/1) ...
[2023-12-23 02:33:39,521 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 02:33:39,522 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 02:33:39,522 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 02:33:39,522 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 02:33:39,522 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:33:39" (1/1) ...
[2023-12-23 02:33:39,543 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 02:33:39,555 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 02:33:39,582 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)
[2023-12-23 02:33:39,630 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
[2023-12-23 02:33:39,635 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 02:33:39,635 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 02:33:39,636 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 02:33:39,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 02:33:39,636 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 02:33:39,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 02:33:39,738 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 02:33:39,740 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 02:33:43,155 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 02:33:43,209 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 02:33:43,210 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 02:33:43,210 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:33:43 BoogieIcfgContainer
[2023-12-23 02:33:43,210 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 02:33:43,212 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 02:33:43,212 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 02:33:43,214 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 02:33:43,214 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 02:33:38" (1/3) ...
[2023-12-23 02:33:43,214 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3acd53d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:33:43, skipping insertion in model container
[2023-12-23 02:33:43,214 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:33:39" (2/3) ...
[2023-12-23 02:33:43,214 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3acd53d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:33:43, skipping insertion in model container
[2023-12-23 02:33:43,215 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:33:43" (3/3) ...
[2023-12-23 02:33:43,215 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-49.i
[2023-12-23 02:33:43,229 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 02:33:43,229 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 02:33:43,268 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 02:33:43,275 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;@4f2dd52e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 02:33:43,275 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 02:33:43,280 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 197 states, 115 states have (on average 1.5304347826086957) internal successors, (176), 116 states have internal predecessors, (176), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79)
[2023-12-23 02:33:43,302 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 486
[2023-12-23 02:33:43,302 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:33:43,303 INFO  L195           NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 02:33:43,303 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:33:43,309 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:33:43,309 INFO  L85        PathProgramCache]: Analyzing trace with hash -1969062585, now seen corresponding path program 1 times
[2023-12-23 02:33:43,322 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:33:43,322 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030320849]
[2023-12-23 02:33:43,323 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:33:43,323 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
[2023-12-23 02:33:43,323 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:33:43,338 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)
[2023-12-23 02:33:43,345 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
[2023-12-23 02:33:44,086 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:33:44,122 INFO  L262         TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 02:33:44,148 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 02:33:44,225 INFO  L134       CoverageAnalysis]: Checked inductivity of 12324 backedges. 3324 proven. 0 refuted. 0 times theorem prover too weak. 9000 trivial. 0 not checked.
[2023-12-23 02:33:44,226 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 02:33:44,226 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 02:33:44,227 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030320849]
[2023-12-23 02:33:44,227 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1030320849] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 02:33:44,227 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 02:33:44,227 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 02:33:44,229 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865182994]
[2023-12-23 02:33:44,229 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 02:33:44,234 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 02:33:44,234 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 02:33:44,257 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 02:33:44,258 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 02:33:44,261 INFO  L87              Difference]: Start difference. First operand  has 197 states, 115 states have (on average 1.5304347826086957) internal successors, (176), 116 states have internal predecessors, (176), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) Second operand  has 2 states, 2 states have (on average 48.5) internal successors, (97), 2 states have internal predecessors, (97), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79)
[2023-12-23 02:33:44,374 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 02:33:44,374 INFO  L93              Difference]: Finished difference Result 390 states and 743 transitions.
[2023-12-23 02:33:44,382 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 02:33:44,384 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 48.5) internal successors, (97), 2 states have internal predecessors, (97), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) Word has length 485
[2023-12-23 02:33:44,384 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 02:33:44,390 INFO  L225             Difference]: With dead ends: 390
[2023-12-23 02:33:44,390 INFO  L226             Difference]: Without dead ends: 194
[2023-12-23 02:33:44,394 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 02:33:44,398 INFO  L413           NwaCegarLoop]: 320 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-23 02:33:44,399 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 320 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-23 02:33:44,412 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 194 states.
[2023-12-23 02:33:44,459 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194.
[2023-12-23 02:33:44,461 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 194 states, 113 states have (on average 1.4601769911504425) internal successors, (165), 113 states have internal predecessors, (165), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79)
[2023-12-23 02:33:44,467 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 323 transitions.
[2023-12-23 02:33:44,468 INFO  L78                 Accepts]: Start accepts. Automaton has 194 states and 323 transitions. Word has length 485
[2023-12-23 02:33:44,469 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 02:33:44,469 INFO  L495      AbstractCegarLoop]: Abstraction has 194 states and 323 transitions.
[2023-12-23 02:33:44,470 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 48.5) internal successors, (97), 2 states have internal predecessors, (97), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79)
[2023-12-23 02:33:44,470 INFO  L276                IsEmpty]: Start isEmpty. Operand 194 states and 323 transitions.
[2023-12-23 02:33:44,481 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 487
[2023-12-23 02:33:44,481 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:33:44,481 INFO  L195           NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 02:33:44,505 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-23 02:33:44,696 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
[2023-12-23 02:33:44,697 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:33:44,697 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:33:44,697 INFO  L85        PathProgramCache]: Analyzing trace with hash -2033171665, now seen corresponding path program 1 times
[2023-12-23 02:33:44,698 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:33:44,698 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1729195076]
[2023-12-23 02:33:44,699 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:33:44,699 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
[2023-12-23 02:33:44,699 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:33:44,700 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)
[2023-12-23 02:33:44,704 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
[2023-12-23 02:33:45,461 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:33:45,498 INFO  L262         TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 02:33:45,505 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 02:33:45,555 INFO  L134       CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked.
[2023-12-23 02:33:45,555 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 02:33:45,556 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 02:33:45,559 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1729195076]
[2023-12-23 02:33:45,560 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1729195076] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 02:33:45,560 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 02:33:45,560 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 02:33:45,560 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112420704]
[2023-12-23 02:33:45,560 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 02:33:45,563 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 02:33:45,564 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 02:33:45,564 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 02:33:45,564 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 02:33:45,565 INFO  L87              Difference]: Start difference. First operand 194 states and 323 transitions. Second operand  has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79)
[2023-12-23 02:33:46,253 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 02:33:46,253 INFO  L93              Difference]: Finished difference Result 505 states and 841 transitions.
[2023-12-23 02:33:46,254 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 02:33:46,254 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 486
[2023-12-23 02:33:46,256 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 02:33:46,259 INFO  L225             Difference]: With dead ends: 505
[2023-12-23 02:33:46,259 INFO  L226             Difference]: Without dead ends: 312
[2023-12-23 02:33:46,261 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 02:33:46,262 INFO  L413           NwaCegarLoop]: 417 mSDtfsCounter, 186 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-23 02:33:46,262 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 707 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-23 02:33:46,263 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 312 states.
[2023-12-23 02:33:46,305 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 309.
[2023-12-23 02:33:46,306 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 309 states, 190 states have (on average 1.4631578947368422) internal successors, (278), 191 states have internal predecessors, (278), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 115 states have call predecessors, (116), 116 states have call successors, (116)
[2023-12-23 02:33:46,307 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 510 transitions.
[2023-12-23 02:33:46,308 INFO  L78                 Accepts]: Start accepts. Automaton has 309 states and 510 transitions. Word has length 486
[2023-12-23 02:33:46,309 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 02:33:46,309 INFO  L495      AbstractCegarLoop]: Abstraction has 309 states and 510 transitions.
[2023-12-23 02:33:46,309 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79)
[2023-12-23 02:33:46,310 INFO  L276                IsEmpty]: Start isEmpty. Operand 309 states and 510 transitions.
[2023-12-23 02:33:46,316 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 487
[2023-12-23 02:33:46,316 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:33:46,316 INFO  L195           NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 02:33:46,342 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
[2023-12-23 02:33:46,528 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
[2023-12-23 02:33:46,529 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:33:46,529 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:33:46,529 INFO  L85        PathProgramCache]: Analyzing trace with hash 1987233515, now seen corresponding path program 1 times
[2023-12-23 02:33:46,530 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:33:46,530 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953897128]
[2023-12-23 02:33:46,530 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:33:46,531 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 02:33:46,531 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:33:46,532 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)
[2023-12-23 02:33:46,536 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
[2023-12-23 02:33:47,250 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:33:47,285 INFO  L262         TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 02:33:47,292 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 02:33:49,481 INFO  L134       CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked.
[2023-12-23 02:33:49,482 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 02:33:49,482 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 02:33:49,482 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953897128]
[2023-12-23 02:33:49,482 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [953897128] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 02:33:49,482 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 02:33:49,482 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 02:33:49,482 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797665652]
[2023-12-23 02:33:49,482 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 02:33:49,483 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 02:33:49,483 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 02:33:49,484 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 02:33:49,484 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 02:33:49,484 INFO  L87              Difference]: Start difference. First operand 309 states and 510 transitions. Second operand  has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79)
[2023-12-23 02:33:53,130 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 02:33:55,629 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 02:33:57,140 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 02:33:57,140 INFO  L93              Difference]: Finished difference Result 925 states and 1528 transitions.
[2023-12-23 02:33:57,141 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 02:33:57,141 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 486
[2023-12-23 02:33:57,142 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 02:33:57,146 INFO  L225             Difference]: With dead ends: 925
[2023-12-23 02:33:57,146 INFO  L226             Difference]: Without dead ends: 617
[2023-12-23 02:33:57,148 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 02:33:57,148 INFO  L413           NwaCegarLoop]: 323 mSDtfsCounter, 92 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time
[2023-12-23 02:33:57,149 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 590 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time]
[2023-12-23 02:33:57,149 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 617 states.
[2023-12-23 02:33:57,182 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 615.
[2023-12-23 02:33:57,183 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 615 states, 378 states have (on average 1.4603174603174602) internal successors, (552), 380 states have internal predecessors, (552), 232 states have call successors, (232), 4 states have call predecessors, (232), 4 states have return successors, (232), 230 states have call predecessors, (232), 232 states have call successors, (232)
[2023-12-23 02:33:57,186 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 1016 transitions.
[2023-12-23 02:33:57,186 INFO  L78                 Accepts]: Start accepts. Automaton has 615 states and 1016 transitions. Word has length 486
[2023-12-23 02:33:57,187 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 02:33:57,187 INFO  L495      AbstractCegarLoop]: Abstraction has 615 states and 1016 transitions.
[2023-12-23 02:33:57,187 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79)
[2023-12-23 02:33:57,188 INFO  L276                IsEmpty]: Start isEmpty. Operand 615 states and 1016 transitions.
[2023-12-23 02:33:57,190 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 487
[2023-12-23 02:33:57,190 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:33:57,191 INFO  L195           NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 02:33:57,230 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 (4)] Forceful destruction successful, exit code 0
[2023-12-23 02:33:57,391 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
[2023-12-23 02:33:57,391 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:33:57,392 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:33:57,392 INFO  L85        PathProgramCache]: Analyzing trace with hash -258345939, now seen corresponding path program 1 times
[2023-12-23 02:33:57,393 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:33:57,393 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [985335953]
[2023-12-23 02:33:57,393 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:33:57,393 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
[2023-12-23 02:33:57,393 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:33:57,394 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)
[2023-12-23 02:33:57,397 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
[2023-12-23 02:33:58,078 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:33:58,113 INFO  L262         TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 02:33:58,122 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 02:33:58,633 INFO  L134       CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked.
[2023-12-23 02:33:58,633 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 02:33:58,633 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 02:33:58,633 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [985335953]
[2023-12-23 02:33:58,634 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [985335953] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 02:33:58,634 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 02:33:58,634 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 02:33:58,634 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101858266]
[2023-12-23 02:33:58,634 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 02:33:58,634 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 02:33:58,635 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 02:33:58,635 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 02:33:58,635 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 02:33:58,636 INFO  L87              Difference]: Start difference. First operand 615 states and 1016 transitions. Second operand  has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79)
[2023-12-23 02:33:58,996 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 02:33:58,996 INFO  L93              Difference]: Finished difference Result 1617 states and 2685 transitions.
[2023-12-23 02:33:59,004 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 02:33:59,004 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 486
[2023-12-23 02:33:59,005 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 02:33:59,009 INFO  L225             Difference]: With dead ends: 1617
[2023-12-23 02:33:59,009 INFO  L226             Difference]: Without dead ends: 1003
[2023-12-23 02:33:59,019 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 483 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-23 02:33:59,021 INFO  L413           NwaCegarLoop]: 318 mSDtfsCounter, 241 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-23 02:33:59,022 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 956 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-23 02:33:59,025 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1003 states.
[2023-12-23 02:33:59,081 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 929.
[2023-12-23 02:33:59,083 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 929 states, 612 states have (on average 1.5081699346405228) internal successors, (923), 614 states have internal predecessors, (923), 311 states have call successors, (311), 5 states have call predecessors, (311), 5 states have return successors, (311), 309 states have call predecessors, (311), 311 states have call successors, (311)
[2023-12-23 02:33:59,086 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1545 transitions.
[2023-12-23 02:33:59,087 INFO  L78                 Accepts]: Start accepts. Automaton has 929 states and 1545 transitions. Word has length 486
[2023-12-23 02:33:59,087 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 02:33:59,088 INFO  L495      AbstractCegarLoop]: Abstraction has 929 states and 1545 transitions.
[2023-12-23 02:33:59,088 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79)
[2023-12-23 02:33:59,088 INFO  L276                IsEmpty]: Start isEmpty. Operand 929 states and 1545 transitions.
[2023-12-23 02:33:59,091 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 488
[2023-12-23 02:33:59,092 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:33:59,092 INFO  L195           NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 02:33:59,114 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0
[2023-12-23 02:33:59,307 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
[2023-12-23 02:33:59,307 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:33:59,308 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:33:59,308 INFO  L85        PathProgramCache]: Analyzing trace with hash 760867278, now seen corresponding path program 1 times
[2023-12-23 02:33:59,309 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:33:59,309 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [23605044]
[2023-12-23 02:33:59,309 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:33:59,309 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
[2023-12-23 02:33:59,309 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:33:59,311 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)
[2023-12-23 02:33:59,312 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
[2023-12-23 02:34:00,086 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:34:00,129 INFO  L262         TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-23 02:34:00,144 INFO  L285         TraceCheckSpWp]: Computing forward predicates...