/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_fillercodestructure_filler-pe-cn_file-53.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 08:39:53,685 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 08:39:53,750 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 08:39:53,754 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 08:39:53,754 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 08:39:53,776 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 08:39:53,776 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 08:39:53,776 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 08:39:53,777 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 08:39:53,779 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 08:39:53,780 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 08:39:53,780 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 08:39:53,781 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 08:39:53,781 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 08:39:53,782 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 08:39:53,782 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 08:39:53,782 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 08:39:53,782 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 08:39:53,782 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 08:39:53,783 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 08:39:53,784 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 08:39:53,784 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 08:39:53,784 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 08:39:53,784 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 08:39:53,784 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 08:39:53,784 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 08:39:53,785 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 08:39:53,785 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 08:39:53,785 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 08:39:53,785 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 08:39:53,786 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 08:39:53,786 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 08:39:53,786 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 08:39:53,786 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 08:39:53,786 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 08:39:53,786 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 08:39:53,786 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 08:39:53,787 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 08:39:53,787 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 08:39:53,787 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 08:39:53,787 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 08:39:53,787 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 08:39:53,787 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 08:39:53,787 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 08:39:53,788 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 08:39:53,788 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 08:39:53,788 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 08:39:53,977 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 08:39:54,007 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 08:39:54,009 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 08:39:54,010 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 08:39:54,010 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 08:39:54,011 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-53.i
[2023-12-23 08:39:55,110 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 08:39:55,282 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 08:39:55,282 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-53.i
[2023-12-23 08:39:55,299 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e190a8d8/40dc5fda838e47e0b334dbddc2ebfec9/FLAG4569e73fa
[2023-12-23 08:39:55,312 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e190a8d8/40dc5fda838e47e0b334dbddc2ebfec9
[2023-12-23 08:39:55,313 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 08:39:55,314 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 08:39:55,317 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 08:39:55,317 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 08:39:55,320 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 08:39:55,320 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:39:55" (1/1) ...
[2023-12-23 08:39:55,321 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13945aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:39:55, skipping insertion in model container
[2023-12-23 08:39:55,321 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:39:55" (1/1) ...
[2023-12-23 08:39:55,356 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 08:39:55,476 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_fillercodestructure_filler-pe-cn_file-53.i[919,932]
[2023-12-23 08:39:55,564 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 08:39:55,583 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 08:39:55,597 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_fillercodestructure_filler-pe-cn_file-53.i[919,932]
[2023-12-23 08:39:55,642 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 08:39:55,659 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 08:39:55,660 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:39:55 WrapperNode
[2023-12-23 08:39:55,660 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 08:39:55,661 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 08:39:55,661 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 08:39:55,661 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 08:39:55,665 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:39:55" (1/1) ...
[2023-12-23 08:39:55,684 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:39:55" (1/1) ...
[2023-12-23 08:39:55,713 INFO  L138                Inliner]: procedures = 27, calls = 57, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 256
[2023-12-23 08:39:55,714 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 08:39:55,714 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 08:39:55,714 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 08:39:55,715 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 08:39:55,722 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:39:55" (1/1) ...
[2023-12-23 08:39:55,722 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:39:55" (1/1) ...
[2023-12-23 08:39:55,726 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:39:55" (1/1) ...
[2023-12-23 08:39:55,736 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 08:39:55,736 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:39:55" (1/1) ...
[2023-12-23 08:39:55,736 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:39:55" (1/1) ...
[2023-12-23 08:39:55,750 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:39:55" (1/1) ...
[2023-12-23 08:39:55,753 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:39:55" (1/1) ...
[2023-12-23 08:39:55,755 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:39:55" (1/1) ...
[2023-12-23 08:39:55,756 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:39:55" (1/1) ...
[2023-12-23 08:39:55,759 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 08:39:55,760 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 08:39:55,760 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 08:39:55,760 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 08:39:55,760 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:39:55" (1/1) ...
[2023-12-23 08:39:55,764 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 08:39:55,772 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 08:39:55,784 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 08:39:55,789 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 08:39:55,815 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 08:39:55,815 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 08:39:55,815 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 08:39:55,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 08:39:55,815 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 08:39:55,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 08:39:55,880 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 08:39:55,881 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 08:39:57,247 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 08:39:57,308 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 08:39:57,308 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 08:39:57,308 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:39:57 BoogieIcfgContainer
[2023-12-23 08:39:57,308 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 08:39:57,310 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 08:39:57,310 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 08:39:57,312 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 08:39:57,313 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 08:39:55" (1/3) ...
[2023-12-23 08:39:57,313 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d931bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:39:57, skipping insertion in model container
[2023-12-23 08:39:57,313 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:39:55" (2/3) ...
[2023-12-23 08:39:57,313 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d931bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:39:57, skipping insertion in model container
[2023-12-23 08:39:57,313 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:39:57" (3/3) ...
[2023-12-23 08:39:57,314 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-cn_file-53.i
[2023-12-23 08:39:57,327 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 08:39:57,327 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 08:39:57,389 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 08:39:57,450 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;@3f43b114, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 08:39:57,450 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 08:39:57,455 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 108 states, 61 states have (on average 1.4262295081967213) internal successors, (87), 62 states have internal predecessors, (87), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44)
[2023-12-23 08:39:57,480 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 269
[2023-12-23 08:39:57,480 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:39:57,481 INFO  L195           NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:57,482 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:39:57,489 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:39:57,489 INFO  L85        PathProgramCache]: Analyzing trace with hash 890451747, now seen corresponding path program 1 times
[2023-12-23 08:39:57,503 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:39:57,504 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761514675]
[2023-12-23 08:39:57,505 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:39:57,508 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 08:39:57,508 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:39:57,509 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 08:39:57,538 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 08:39:57,881 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:39:57,901 INFO  L262         TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 08:39:57,912 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:39:57,961 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked.
[2023-12-23 08:39:57,962 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 08:39:57,962 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 08:39:57,962 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [761514675]
[2023-12-23 08:39:57,963 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [761514675] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 08:39:57,963 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 08:39:57,963 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 08:39:57,964 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515708094]
[2023-12-23 08:39:57,965 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 08:39:57,968 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 08:39:57,968 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 08:39:57,986 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 08:39:57,987 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 08:39:57,989 INFO  L87              Difference]: Start difference. First operand  has 108 states, 61 states have (on average 1.4262295081967213) internal successors, (87), 62 states have internal predecessors, (87), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Second operand  has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44)
[2023-12-23 08:39:58,320 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 08:39:58,320 INFO  L93              Difference]: Finished difference Result 316 states and 605 transitions.
[2023-12-23 08:39:58,321 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 08:39:58,322 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 268
[2023-12-23 08:39:58,323 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 08:39:58,330 INFO  L225             Difference]: With dead ends: 316
[2023-12-23 08:39:58,330 INFO  L226             Difference]: Without dead ends: 209
[2023-12-23 08:39:58,333 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 266 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 08:39:58,336 INFO  L413           NwaCegarLoop]: 291 mSDtfsCounter, 161 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-23 08:39:58,338 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 449 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-23 08:39:58,352 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 209 states.
[2023-12-23 08:39:58,407 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 207.
[2023-12-23 08:39:58,413 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 207 states, 116 states have (on average 1.3448275862068966) internal successors, (156), 116 states have internal predecessors, (156), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88)
[2023-12-23 08:39:58,416 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 332 transitions.
[2023-12-23 08:39:58,417 INFO  L78                 Accepts]: Start accepts. Automaton has 207 states and 332 transitions. Word has length 268
[2023-12-23 08:39:58,418 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 08:39:58,418 INFO  L495      AbstractCegarLoop]: Abstraction has 207 states and 332 transitions.
[2023-12-23 08:39:58,418 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44)
[2023-12-23 08:39:58,418 INFO  L276                IsEmpty]: Start isEmpty. Operand 207 states and 332 transitions.
[2023-12-23 08:39:58,421 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 270
[2023-12-23 08:39:58,421 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:39:58,421 INFO  L195           NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:58,449 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 08:39:58,652 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 08:39:58,653 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:39:58,654 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:39:58,654 INFO  L85        PathProgramCache]: Analyzing trace with hash -1665865396, now seen corresponding path program 1 times
[2023-12-23 08:39:58,655 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:39:58,655 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822120978]
[2023-12-23 08:39:58,655 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:39:58,655 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 08:39:58,656 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:39:58,658 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 08:39:58,659 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 08:39:59,132 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:39:59,152 INFO  L262         TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 08:39:59,158 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:39:59,513 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked.
[2023-12-23 08:39:59,514 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 08:39:59,514 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 08:39:59,514 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822120978]
[2023-12-23 08:39:59,514 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [822120978] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 08:39:59,514 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 08:39:59,514 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 08:39:59,514 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334433634]
[2023-12-23 08:39:59,514 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 08:39:59,516 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 08:39:59,516 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 08:39:59,516 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 08:39:59,516 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 08:39:59,517 INFO  L87              Difference]: Start difference. First operand 207 states and 332 transitions. Second operand  has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44)
[2023-12-23 08:39:59,774 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 08:39:59,774 INFO  L93              Difference]: Finished difference Result 421 states and 673 transitions.
[2023-12-23 08:39:59,775 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 08:39:59,775 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 269
[2023-12-23 08:39:59,776 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 08:39:59,777 INFO  L225             Difference]: With dead ends: 421
[2023-12-23 08:39:59,777 INFO  L226             Difference]: Without dead ends: 215
[2023-12-23 08:39:59,779 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 267 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 08:39:59,780 INFO  L413           NwaCegarLoop]: 163 mSDtfsCounter, 41 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-23 08:39:59,780 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 321 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-23 08:39:59,781 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 215 states.
[2023-12-23 08:39:59,798 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 213.
[2023-12-23 08:39:59,798 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 213 states, 122 states have (on average 1.3360655737704918) internal successors, (163), 122 states have internal predecessors, (163), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88)
[2023-12-23 08:39:59,800 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 339 transitions.
[2023-12-23 08:39:59,800 INFO  L78                 Accepts]: Start accepts. Automaton has 213 states and 339 transitions. Word has length 269
[2023-12-23 08:39:59,801 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 08:39:59,801 INFO  L495      AbstractCegarLoop]: Abstraction has 213 states and 339 transitions.
[2023-12-23 08:39:59,801 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44)
[2023-12-23 08:39:59,801 INFO  L276                IsEmpty]: Start isEmpty. Operand 213 states and 339 transitions.
[2023-12-23 08:39:59,803 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 270
[2023-12-23 08:39:59,803 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:39:59,803 INFO  L195           NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:59,818 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 08:40:00,015 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 08:40:00,016 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:40:00,016 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:40:00,016 INFO  L85        PathProgramCache]: Analyzing trace with hash -77545554, now seen corresponding path program 1 times
[2023-12-23 08:40:00,017 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:40:00,017 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002284912]
[2023-12-23 08:40:00,017 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:40:00,017 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 08:40:00,017 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:40:00,020 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 08:40:00,021 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 08:40:00,341 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:40:00,364 INFO  L262         TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 08:40:00,369 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:40:00,410 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked.
[2023-12-23 08:40:00,410 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 08:40:00,410 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 08:40:00,410 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1002284912]
[2023-12-23 08:40:00,410 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1002284912] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 08:40:00,410 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 08:40:00,411 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 08:40:00,411 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714865788]
[2023-12-23 08:40:00,411 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 08:40:00,411 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 08:40:00,411 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 08:40:00,412 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 08:40:00,412 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 08:40:00,412 INFO  L87              Difference]: Start difference. First operand 213 states and 339 transitions. Second operand  has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44)
[2023-12-23 08:40:00,712 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 08:40:00,712 INFO  L93              Difference]: Finished difference Result 538 states and 855 transitions.
[2023-12-23 08:40:00,713 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 08:40:00,713 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 269
[2023-12-23 08:40:00,714 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 08:40:00,716 INFO  L225             Difference]: With dead ends: 538
[2023-12-23 08:40:00,716 INFO  L226             Difference]: Without dead ends: 326
[2023-12-23 08:40:00,718 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 267 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 08:40:00,721 INFO  L413           NwaCegarLoop]: 322 mSDtfsCounter, 163 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-23 08:40:00,722 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 480 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-23 08:40:00,722 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 326 states.
[2023-12-23 08:40:00,746 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 215.
[2023-12-23 08:40:00,747 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 215 states, 124 states have (on average 1.3306451612903225) internal successors, (165), 124 states have internal predecessors, (165), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88)
[2023-12-23 08:40:00,748 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 341 transitions.
[2023-12-23 08:40:00,748 INFO  L78                 Accepts]: Start accepts. Automaton has 215 states and 341 transitions. Word has length 269
[2023-12-23 08:40:00,749 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 08:40:00,749 INFO  L495      AbstractCegarLoop]: Abstraction has 215 states and 341 transitions.
[2023-12-23 08:40:00,749 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44)
[2023-12-23 08:40:00,749 INFO  L276                IsEmpty]: Start isEmpty. Operand 215 states and 341 transitions.
[2023-12-23 08:40:00,751 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 270
[2023-12-23 08:40:00,751 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:40:00,752 INFO  L195           NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:40:00,779 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 08:40:00,963 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 08:40:00,964 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:40:00,964 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:40:00,965 INFO  L85        PathProgramCache]: Analyzing trace with hash -1357409232, now seen corresponding path program 1 times
[2023-12-23 08:40:00,965 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:40:00,965 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017561461]
[2023-12-23 08:40:00,965 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:40:00,966 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 08:40:00,966 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:40:00,968 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 08:40:00,975 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 08:40:01,360 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:40:01,382 INFO  L262         TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-23 08:40:01,387 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:40:01,652 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 1753 proven. 84 refuted. 0 times theorem prover too weak. 1947 trivial. 0 not checked.
[2023-12-23 08:40:01,652 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 08:40:01,938 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 45 proven. 84 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked.
[2023-12-23 08:40:01,939 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 08:40:01,939 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017561461]
[2023-12-23 08:40:01,939 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017561461] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 08:40:01,939 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 08:40:01,939 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12
[2023-12-23 08:40:01,939 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894861395]
[2023-12-23 08:40:01,939 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 08:40:01,940 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-12-23 08:40:01,940 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 08:40:01,941 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-12-23 08:40:01,941 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132
[2023-12-23 08:40:01,941 INFO  L87              Difference]: Start difference. First operand 215 states and 341 transitions. Second operand  has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 2 states have call successors, (72), 2 states have call predecessors, (72), 4 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73)
[2023-12-23 08:40:03,893 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 08:40:03,893 INFO  L93              Difference]: Finished difference Result 652 states and 1013 transitions.
[2023-12-23 08:40:03,893 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. 
[2023-12-23 08:40:03,894 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 2 states have call successors, (72), 2 states have call predecessors, (72), 4 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) Word has length 269
[2023-12-23 08:40:03,894 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 08:40:03,897 INFO  L225             Difference]: With dead ends: 652
[2023-12-23 08:40:03,897 INFO  L226             Difference]: Without dead ends: 438
[2023-12-23 08:40:03,898 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 528 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992
[2023-12-23 08:40:03,899 INFO  L413           NwaCegarLoop]: 233 mSDtfsCounter, 490 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 492 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 492 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2023-12-23 08:40:03,899 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 828 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [492 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2023-12-23 08:40:03,900 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 438 states.
[2023-12-23 08:40:03,923 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 221.
[2023-12-23 08:40:03,924 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 221 states, 128 states have (on average 1.3125) internal successors, (168), 128 states have internal predecessors, (168), 88 states have call successors, (88), 4 states have call predecessors, (88), 4 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88)
[2023-12-23 08:40:03,925 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 344 transitions.
[2023-12-23 08:40:03,925 INFO  L78                 Accepts]: Start accepts. Automaton has 221 states and 344 transitions. Word has length 269
[2023-12-23 08:40:03,926 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 08:40:03,926 INFO  L495      AbstractCegarLoop]: Abstraction has 221 states and 344 transitions.
[2023-12-23 08:40:03,926 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 2 states have call successors, (72), 2 states have call predecessors, (72), 4 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73)
[2023-12-23 08:40:03,926 INFO  L276                IsEmpty]: Start isEmpty. Operand 221 states and 344 transitions.
[2023-12-23 08:40:03,928 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 271
[2023-12-23 08:40:03,928 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:40:03,928 INFO  L195           NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:40:03,943 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-12-23 08:40:04,140 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 08:40:04,141 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:40:04,141 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:40:04,142 INFO  L85        PathProgramCache]: Analyzing trace with hash -1609010655, now seen corresponding path program 1 times
[2023-12-23 08:40:04,142 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:40:04,143 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [809629850]
[2023-12-23 08:40:04,143 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:40:04,143 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 08:40:04,143 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:40:04,144 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 08:40:04,176 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 08:40:04,474 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:40:04,495 INFO  L262         TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 22 conjunts are in the unsatisfiable core
[2023-12-23 08:40:04,502 INFO  L285         TraceCheckSpWp]: Computing forward predicates...