/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-38.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 02:22:06,210 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 02:22:06,296 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 02:22:06,300 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 02:22:06,301 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 02:22:06,323 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 02:22:06,324 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 02:22:06,324 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 02:22:06,325 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 02:22:06,328 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 02:22:06,329 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 02:22:06,329 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 02:22:06,329 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 02:22:06,329 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 02:22:06,330 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 02:22:06,330 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 02:22:06,330 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 02:22:06,330 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 02:22:06,331 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 02:22:06,331 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 02:22:06,331 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 02:22:06,332 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 02:22:06,332 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 02:22:06,333 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 02:22:06,333 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 02:22:06,333 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 02:22:06,333 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 02:22:06,333 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 02:22:06,334 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 02:22:06,334 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 02:22:06,335 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 02:22:06,335 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 02:22:06,335 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 02:22:06,335 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 02:22:06,335 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 02:22:06,335 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 02:22:06,336 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 02:22:06,336 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 02:22:06,336 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 02:22:06,336 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 02:22:06,336 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 02:22:06,336 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 02:22:06,337 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 02:22:06,337 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 02:22:06,337 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 02:22:06,337 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 02:22:06,337 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 02:22:06,559 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 02:22:06,580 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 02:22:06,583 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 02:22:06,583 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 02:22:06,584 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 02:22:06,585 INFO  L431   ainManager$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-38.i
[2023-12-23 02:22:07,783 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 02:22:08,011 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 02:22:08,011 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-38.i
[2023-12-23 02:22:08,023 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2daf4a242/ae7de13cce67406b877c2538e6af39a4/FLAG7d4a80e67
[2023-12-23 02:22:08,034 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2daf4a242/ae7de13cce67406b877c2538e6af39a4
[2023-12-23 02:22:08,037 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 02:22:08,038 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 02:22:08,039 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 02:22:08,039 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 02:22:08,049 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 02:22:08,050 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:22:08" (1/1) ...
[2023-12-23 02:22:08,051 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@199ccca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:08, skipping insertion in model container
[2023-12-23 02:22:08,052 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:22:08" (1/1) ...
[2023-12-23 02:22:08,106 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 02:22:08,240 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-38.i[916,929]
[2023-12-23 02:22:08,359 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 02:22:08,380 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 02:22:08,392 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-38.i[916,929]
[2023-12-23 02:22:08,527 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 02:22:08,553 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 02:22:08,556 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:08 WrapperNode
[2023-12-23 02:22:08,556 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 02:22:08,557 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 02:22:08,557 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 02:22:08,557 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 02:22:08,563 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:08" (1/1) ...
[2023-12-23 02:22:08,595 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:08" (1/1) ...
[2023-12-23 02:22:08,627 INFO  L138                Inliner]: procedures = 27, calls = 93, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 455
[2023-12-23 02:22:08,627 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 02:22:08,628 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 02:22:08,628 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 02:22:08,628 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 02:22:08,644 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:08" (1/1) ...
[2023-12-23 02:22:08,644 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:08" (1/1) ...
[2023-12-23 02:22:08,655 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:08" (1/1) ...
[2023-12-23 02:22:08,676 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 02:22:08,676 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:08" (1/1) ...
[2023-12-23 02:22:08,677 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:08" (1/1) ...
[2023-12-23 02:22:08,695 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:08" (1/1) ...
[2023-12-23 02:22:08,699 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:08" (1/1) ...
[2023-12-23 02:22:08,704 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:08" (1/1) ...
[2023-12-23 02:22:08,708 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:08" (1/1) ...
[2023-12-23 02:22:08,714 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 02:22:08,716 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 02:22:08,716 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 02:22:08,716 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 02:22:08,717 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:08" (1/1) ...
[2023-12-23 02:22:08,722 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 02:22:08,733 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 02:22:08,750 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 02:22:08,764 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 02:22:08,783 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 02:22:08,784 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 02:22:08,784 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 02:22:08,784 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 02:22:08,784 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 02:22:08,784 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 02:22:08,905 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 02:22:08,907 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 02:22:14,567 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 02:22:14,633 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 02:22:14,633 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 02:22:14,633 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:22:14 BoogieIcfgContainer
[2023-12-23 02:22:14,633 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 02:22:14,638 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 02:22:14,638 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 02:22:14,645 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 02:22:14,645 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 02:22:08" (1/3) ...
[2023-12-23 02:22:14,647 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1954c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:22:14, skipping insertion in model container
[2023-12-23 02:22:14,647 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:08" (2/3) ...
[2023-12-23 02:22:14,647 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1954c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:22:14, skipping insertion in model container
[2023-12-23 02:22:14,648 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:22:14" (3/3) ...
[2023-12-23 02:22:14,649 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-38.i
[2023-12-23 02:22:14,664 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 02:22:14,664 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 02:22:14,712 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 02:22:14,720 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;@62398929, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 02:22:14,720 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 02:22:14,724 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 199 states, 116 states have (on average 1.5) internal successors, (174), 117 states have internal predecessors, (174), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80)
[2023-12-23 02:22:14,765 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 489
[2023-12-23 02:22:14,766 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:22:14,767 INFO  L195           NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:22:14,768 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:22:14,776 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:22:14,776 INFO  L85        PathProgramCache]: Analyzing trace with hash -1166082997, now seen corresponding path program 1 times
[2023-12-23 02:22:14,792 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:22:14,792 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023678349]
[2023-12-23 02:22:14,792 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:22:14,793 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 02:22:14,793 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:22:14,795 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 02:22:14,824 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 02:22:15,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:22:15,855 INFO  L262         TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 02:22:15,871 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 02:22:15,959 INFO  L134       CoverageAnalysis]: Checked inductivity of 12640 backedges. 6230 proven. 0 refuted. 0 times theorem prover too weak. 6410 trivial. 0 not checked.
[2023-12-23 02:22:15,959 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 02:22:15,960 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 02:22:15,960 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023678349]
[2023-12-23 02:22:15,961 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2023678349] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 02:22:15,961 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 02:22:15,961 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 02:22:15,962 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533677093]
[2023-12-23 02:22:15,963 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 02:22:15,972 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 02:22:15,972 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 02:22:15,999 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 02:22:16,000 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 02:22:16,006 INFO  L87              Difference]: Start difference. First operand  has 199 states, 116 states have (on average 1.5) internal successors, (174), 117 states have internal predecessors, (174), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) Second operand  has 2 states, 2 states have (on average 47.5) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80)
[2023-12-23 02:22:19,698 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.53s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 02:22:19,699 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 02:22:19,699 INFO  L93              Difference]: Finished difference Result 395 states and 746 transitions.
[2023-12-23 02:22:19,745 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 02:22:19,746 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 47.5) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 488
[2023-12-23 02:22:19,746 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 02:22:19,755 INFO  L225             Difference]: With dead ends: 395
[2023-12-23 02:22:19,755 INFO  L226             Difference]: Without dead ends: 197
[2023-12-23 02:22:19,759 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 487 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 02:22:19,762 INFO  L413           NwaCegarLoop]: 323 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time
[2023-12-23 02:22:19,763 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 323 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time]
[2023-12-23 02:22:19,777 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 197 states.
[2023-12-23 02:22:19,817 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197.
[2023-12-23 02:22:19,820 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 197 states, 115 states have (on average 1.4434782608695653) internal successors, (166), 115 states have internal predecessors, (166), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80)
[2023-12-23 02:22:19,823 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 326 transitions.
[2023-12-23 02:22:19,825 INFO  L78                 Accepts]: Start accepts. Automaton has 197 states and 326 transitions. Word has length 488
[2023-12-23 02:22:19,825 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 02:22:19,825 INFO  L495      AbstractCegarLoop]: Abstraction has 197 states and 326 transitions.
[2023-12-23 02:22:19,826 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 47.5) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80)
[2023-12-23 02:22:19,826 INFO  L276                IsEmpty]: Start isEmpty. Operand 197 states and 326 transitions.
[2023-12-23 02:22:19,836 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 489
[2023-12-23 02:22:19,836 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:22:19,836 INFO  L195           NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:22:19,873 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 02:22:20,060 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 02:22:20,061 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:22:20,061 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:22:20,062 INFO  L85        PathProgramCache]: Analyzing trace with hash 976753997, now seen corresponding path program 1 times
[2023-12-23 02:22:20,063 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:22:20,063 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105828083]
[2023-12-23 02:22:20,063 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:22:20,063 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 02:22:20,064 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:22:20,066 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 02:22:20,067 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 02:22:21,061 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:22:21,116 INFO  L262         TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-23 02:22:21,127 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 02:22:24,233 INFO  L134       CoverageAnalysis]: Checked inductivity of 12640 backedges. 6533 proven. 207 refuted. 0 times theorem prover too weak. 5900 trivial. 0 not checked.
[2023-12-23 02:22:24,234 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 02:22:25,842 INFO  L134       CoverageAnalysis]: Checked inductivity of 12640 backedges. 261 proven. 210 refuted. 0 times theorem prover too weak. 12169 trivial. 0 not checked.
[2023-12-23 02:22:25,843 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 02:22:25,845 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2105828083]
[2023-12-23 02:22:25,845 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2105828083] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 02:22:25,845 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 02:22:25,845 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12
[2023-12-23 02:22:25,846 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536653007]
[2023-12-23 02:22:25,846 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 02:22:25,850 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-12-23 02:22:25,851 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 02:22:25,853 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-12-23 02:22:25,853 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2023-12-23 02:22:25,853 INFO  L87              Difference]: Start difference. First operand 197 states and 326 transitions. Second operand  has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 3 states have call successors, (116), 3 states have call predecessors, (116), 7 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117)
[2023-12-23 02:22:32,049 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.81s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 02:22:32,202 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 02:22:32,202 INFO  L93              Difference]: Finished difference Result 406 states and 661 transitions.
[2023-12-23 02:22:32,256 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-12-23 02:22:32,256 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 3 states have call successors, (116), 3 states have call predecessors, (116), 7 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) Word has length 488
[2023-12-23 02:22:32,259 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 02:22:32,263 INFO  L225             Difference]: With dead ends: 406
[2023-12-23 02:22:32,263 INFO  L226             Difference]: Without dead ends: 210
[2023-12-23 02:22:32,265 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 981 GetRequests, 963 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=126, Invalid=216, Unknown=0, NotChecked=0, Total=342
[2023-12-23 02:22:32,266 INFO  L413           NwaCegarLoop]: 225 mSDtfsCounter, 276 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time
[2023-12-23 02:22:32,266 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 657 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time]
[2023-12-23 02:22:32,267 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 210 states.
[2023-12-23 02:22:32,314 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 204.
[2023-12-23 02:22:32,315 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 204 states, 120 states have (on average 1.375) internal successors, (165), 120 states have internal predecessors, (165), 80 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80)
[2023-12-23 02:22:32,316 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 325 transitions.
[2023-12-23 02:22:32,317 INFO  L78                 Accepts]: Start accepts. Automaton has 204 states and 325 transitions. Word has length 488
[2023-12-23 02:22:32,318 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 02:22:32,318 INFO  L495      AbstractCegarLoop]: Abstraction has 204 states and 325 transitions.
[2023-12-23 02:22:32,319 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 3 states have call successors, (116), 3 states have call predecessors, (116), 7 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117)
[2023-12-23 02:22:32,319 INFO  L276                IsEmpty]: Start isEmpty. Operand 204 states and 325 transitions.
[2023-12-23 02:22:32,333 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 489
[2023-12-23 02:22:32,333 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:22:32,333 INFO  L195           NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:22:32,375 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 02:22:32,560 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 02:22:32,561 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:22:32,561 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:22:32,561 INFO  L85        PathProgramCache]: Analyzing trace with hash -1298995759, now seen corresponding path program 1 times
[2023-12-23 02:22:32,562 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:22:32,563 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27498771]
[2023-12-23 02:22:32,563 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:22:32,563 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 02:22:32,563 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:22:32,565 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 02:22:32,593 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 02:22:33,434 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:22:33,485 INFO  L262         TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 02:22:33,492 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 02:22:33,940 INFO  L134       CoverageAnalysis]: Checked inductivity of 12640 backedges. 3207 proven. 33 refuted. 0 times theorem prover too weak. 9400 trivial. 0 not checked.
[2023-12-23 02:22:33,941 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 02:22:34,164 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 02:22:34,165 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27498771]
[2023-12-23 02:22:34,165 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [27498771] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 02:22:34,165 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [569039962]
[2023-12-23 02:22:34,165 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:22:34,165 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 02:22:34,165 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 02:22:34,198 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 02:22:34,215 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2023-12-23 02:22:36,683 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:22:36,751 INFO  L262         TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 02:22:36,759 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 02:22:38,831 INFO  L134       CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked.
[2023-12-23 02:22:38,832 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 02:22:38,832 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [569039962] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 02:22:38,832 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-23 02:22:38,832 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8
[2023-12-23 02:22:38,832 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437393816]
[2023-12-23 02:22:38,833 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 02:22:38,833 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 02:22:38,833 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 02:22:38,834 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 02:22:38,834 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2023-12-23 02:22:38,835 INFO  L87              Difference]: Start difference. First operand 204 states and 325 transitions. Second operand  has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80)
[2023-12-23 02:22:43,033 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 02:22:47,124 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 02:22:47,252 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 02:22:47,252 INFO  L93              Difference]: Finished difference Result 996 states and 1588 transitions.
[2023-12-23 02:22:47,253 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-23 02:22:47,253 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 488
[2023-12-23 02:22:47,255 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 02:22:47,260 INFO  L225             Difference]: With dead ends: 996
[2023-12-23 02:22:47,260 INFO  L226             Difference]: Without dead ends: 793
[2023-12-23 02:22:47,261 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1018 GetRequests, 1008 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132
[2023-12-23 02:22:47,262 INFO  L413           NwaCegarLoop]: 913 mSDtfsCounter, 547 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time
[2023-12-23 02:22:47,263 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 1856 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time]
[2023-12-23 02:22:47,264 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 793 states.
[2023-12-23 02:22:47,336 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 405.
[2023-12-23 02:22:47,337 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 405 states, 238 states have (on average 1.3739495798319328) internal successors, (327), 238 states have internal predecessors, (327), 160 states have call successors, (160), 6 states have call predecessors, (160), 6 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160)
[2023-12-23 02:22:47,342 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 647 transitions.
[2023-12-23 02:22:47,343 INFO  L78                 Accepts]: Start accepts. Automaton has 405 states and 647 transitions. Word has length 488
[2023-12-23 02:22:47,347 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 02:22:47,347 INFO  L495      AbstractCegarLoop]: Abstraction has 405 states and 647 transitions.
[2023-12-23 02:22:47,347 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80)
[2023-12-23 02:22:47,348 INFO  L276                IsEmpty]: Start isEmpty. Operand 405 states and 647 transitions.
[2023-12-23 02:22:47,352 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 490
[2023-12-23 02:22:47,353 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:22:47,353 INFO  L195           NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:22:47,382 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
[2023-12-23 02:22:47,579 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0
[2023-12-23 02:22:47,760 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-23 02:22:47,761 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:22:47,761 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:22:47,761 INFO  L85        PathProgramCache]: Analyzing trace with hash -709713650, now seen corresponding path program 1 times
[2023-12-23 02:22:47,762 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:22:47,762 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255284367]
[2023-12-23 02:22:47,762 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:22:47,763 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 02:22:47,763 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:22:47,764 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 02:22:47,784 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 02:22:48,614 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:22:48,663 INFO  L262         TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 02:22:48,670 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 02:22:49,095 INFO  L134       CoverageAnalysis]: Checked inductivity of 12640 backedges. 3207 proven. 33 refuted. 0 times theorem prover too weak. 9400 trivial. 0 not checked.
[2023-12-23 02:22:49,096 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 02:22:49,326 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 02:22:49,326 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255284367]
[2023-12-23 02:22:49,326 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [255284367] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 02:22:49,326 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [471955197]
[2023-12-23 02:22:49,326 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:22:49,326 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 02:22:49,327 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 02:22:49,332 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 02:22:49,350 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process
[2023-12-23 02:22:52,103 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:22:52,151 INFO  L262         TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 02:22:52,163 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 02:22:52,562 INFO  L134       CoverageAnalysis]: Checked inductivity of 12640 backedges. 3207 proven. 33 refuted. 0 times theorem prover too weak. 9400 trivial. 0 not checked.
[2023-12-23 02:22:52,563 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 02:22:52,734 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [471955197] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 02:22:52,734 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 02:22:52,735 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5
[2023-12-23 02:22:52,735 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56823927]
[2023-12-23 02:22:52,735 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 02:22:52,736 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 02:22:52,737 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 02:22:52,737 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 02:22:52,737 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-23 02:22:52,738 INFO  L87              Difference]: Start difference. First operand 405 states and 647 transitions. Second operand  has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80)
[2023-12-23 02:22:56,372 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 02:22:56,482 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 02:22:56,482 INFO  L93              Difference]: Finished difference Result 829 states and 1311 transitions.
[2023-12-23 02:22:56,531 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-23 02:22:56,532 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 489
[2023-12-23 02:22:56,532 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 02:22:56,535 INFO  L225             Difference]: With dead ends: 829
[2023-12-23 02:22:56,535 INFO  L226             Difference]: Without dead ends: 425
[2023-12-23 02:22:56,537 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1064 GetRequests, 1056 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2023-12-23 02:22:56,538 INFO  L413           NwaCegarLoop]: 229 mSDtfsCounter, 195 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time
[2023-12-23 02:22:56,538 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 525 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time]
[2023-12-23 02:22:56,539 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 425 states.
[2023-12-23 02:22:56,588 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 413.
[2023-12-23 02:22:56,589 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 413 states, 244 states have (on average 1.3565573770491803) internal successors, (331), 244 states have internal predecessors, (331), 160 states have call successors, (160), 8 states have call predecessors, (160), 8 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160)
[2023-12-23 02:22:56,591 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 651 transitions.
[2023-12-23 02:22:56,592 INFO  L78                 Accepts]: Start accepts. Automaton has 413 states and 651 transitions. Word has length 489
[2023-12-23 02:22:56,593 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 02:22:56,593 INFO  L495      AbstractCegarLoop]: Abstraction has 413 states and 651 transitions.
[2023-12-23 02:22:56,593 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80)
[2023-12-23 02:22:56,594 INFO  L276                IsEmpty]: Start isEmpty. Operand 413 states and 651 transitions.
[2023-12-23 02:22:56,597 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 490
[2023-12-23 02:22:56,597 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:22:56,597 INFO  L195           NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:22:56,624 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0
[2023-12-23 02:22:56,849 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0
[2023-12-23 02:22:57,021 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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
[2023-12-23 02:22:57,022 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:22:57,022 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:22:57,023 INFO  L85        PathProgramCache]: Analyzing trace with hash 1591108940, now seen corresponding path program 1 times
[2023-12-23 02:22:57,024 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:22:57,024 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396327703]
[2023-12-23 02:22:57,024 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:22:57,024 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 02:22:57,024 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:22:57,025 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)
[2023-12-23 02:22:57,028 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
[2023-12-23 02:22:57,940 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:22:57,995 INFO  L262         TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-12-23 02:22:58,005 INFO  L285         TraceCheckSpWp]: Computing forward predicates...