/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_codestructure_normal_file-85.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 21:31:02,974 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 21:31:03,046 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-22 21:31:03,050 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 21:31:03,050 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 21:31:03,071 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 21:31:03,072 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 21:31:03,072 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 21:31:03,073 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 21:31:03,075 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 21:31:03,076 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 21:31:03,076 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 21:31:03,077 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 21:31:03,077 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 21:31:03,078 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 21:31:03,078 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 21:31:03,078 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 21:31:03,078 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 21:31:03,078 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 21:31:03,079 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 21:31:03,079 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 21:31:03,079 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 21:31:03,079 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 21:31:03,079 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 21:31:03,079 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 21:31:03,080 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 21:31:03,080 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 21:31:03,080 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 21:31:03,080 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 21:31:03,080 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 21:31:03,081 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 21:31:03,081 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 21:31:03,081 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 21:31:03,081 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 21:31:03,081 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 21:31:03,081 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 21:31:03,081 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 21:31:03,082 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 21:31:03,082 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 21:31:03,082 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 21:31:03,082 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 21:31:03,082 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 21:31:03,082 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 21:31:03,082 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 21:31:03,083 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 21:31:03,083 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 21:31:03,083 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 21:31:03,285 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 21:31:03,304 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 21:31:03,306 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 21:31:03,307 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 21:31:03,307 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 21:31:03,308 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_normal_file-85.i
[2023-12-22 21:31:04,307 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 21:31:04,511 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 21:31:04,511 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_normal_file-85.i
[2023-12-22 21:31:04,519 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b40f06e/e9fd7f982afc4f32b588f187cf7838e6/FLAG53ca80f54
[2023-12-22 21:31:04,534 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b40f06e/e9fd7f982afc4f32b588f187cf7838e6
[2023-12-22 21:31:04,536 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 21:31:04,537 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 21:31:04,539 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 21:31:04,540 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 21:31:04,543 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 21:31:04,544 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 09:31:04" (1/1) ...
[2023-12-22 21:31:04,544 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72808a9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:31:04, skipping insertion in model container
[2023-12-22 21:31:04,545 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 09:31:04" (1/1) ...
[2023-12-22 21:31:04,576 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 21:31:04,669 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_codestructure_normal_file-85.i[913,926]
[2023-12-22 21:31:04,702 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 21:31:04,713 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 21:31:04,723 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_codestructure_normal_file-85.i[913,926]
[2023-12-22 21:31:04,747 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 21:31:04,758 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 21:31:04,759 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:31:04 WrapperNode
[2023-12-22 21:31:04,759 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 21:31:04,760 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 21:31:04,760 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 21:31:04,760 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 21:31:04,765 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:31:04" (1/1) ...
[2023-12-22 21:31:04,774 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:31:04" (1/1) ...
[2023-12-22 21:31:04,812 INFO  L138                Inliner]: procedures = 27, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 133
[2023-12-22 21:31:04,812 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 21:31:04,813 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 21:31:04,813 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 21:31:04,813 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 21:31:04,820 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:31:04" (1/1) ...
[2023-12-22 21:31:04,821 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:31:04" (1/1) ...
[2023-12-22 21:31:04,833 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:31:04" (1/1) ...
[2023-12-22 21:31:04,844 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-22 21:31:04,844 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:31:04" (1/1) ...
[2023-12-22 21:31:04,844 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:31:04" (1/1) ...
[2023-12-22 21:31:04,852 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:31:04" (1/1) ...
[2023-12-22 21:31:04,855 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:31:04" (1/1) ...
[2023-12-22 21:31:04,857 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:31:04" (1/1) ...
[2023-12-22 21:31:04,858 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:31:04" (1/1) ...
[2023-12-22 21:31:04,860 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 21:31:04,861 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 21:31:04,861 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 21:31:04,861 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 21:31:04,862 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:31:04" (1/1) ...
[2023-12-22 21:31:04,866 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 21:31:04,889 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 21:31:04,901 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-22 21:31:04,926 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-22 21:31:04,932 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 21:31:04,940 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 21:31:04,941 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-22 21:31:04,942 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-22 21:31:04,942 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 21:31:04,942 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 21:31:05,002 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 21:31:05,004 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 21:31:08,664 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 21:31:08,724 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 21:31:08,724 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 21:31:08,724 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 09:31:08 BoogieIcfgContainer
[2023-12-22 21:31:08,724 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 21:31:08,726 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 21:31:08,726 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 21:31:08,728 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 21:31:08,729 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 09:31:04" (1/3) ...
[2023-12-22 21:31:08,729 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7da290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 09:31:08, skipping insertion in model container
[2023-12-22 21:31:08,729 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:31:04" (2/3) ...
[2023-12-22 21:31:08,729 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7da290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 09:31:08, skipping insertion in model container
[2023-12-22 21:31:08,729 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 09:31:08" (3/3) ...
[2023-12-22 21:31:08,730 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-85.i
[2023-12-22 21:31:08,746 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 21:31:08,747 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 21:31:08,780 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 21:31:08,785 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;@4ccef62, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 21:31:08,785 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 21:31:08,788 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 58 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 34 states have internal predecessors, (47), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2023-12-22 21:31:08,799 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2023-12-22 21:31:08,800 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 21:31:08,800 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 21:31:08,801 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 21:31:08,804 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 21:31:08,805 INFO  L85        PathProgramCache]: Analyzing trace with hash -920270044, now seen corresponding path program 1 times
[2023-12-22 21:31:08,814 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 21:31:08,815 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893735782]
[2023-12-22 21:31:08,815 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 21:31:08,815 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 21:31:08,816 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 21:31:08,818 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 21:31:08,822 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-22 21:31:09,203 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 21:31:09,224 INFO  L262         TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 21:31:09,241 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 21:31:09,291 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 730 trivial. 0 not checked.
[2023-12-22 21:31:09,291 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 21:31:09,291 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 21:31:09,291 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893735782]
[2023-12-22 21:31:09,301 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893735782] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 21:31:09,302 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 21:31:09,302 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 21:31:09,303 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430447739]
[2023-12-22 21:31:09,304 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 21:31:09,307 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 21:31:09,307 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 21:31:09,329 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 21:31:09,330 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 21:31:09,331 INFO  L87              Difference]: Start difference. First operand  has 58 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 34 states have internal predecessors, (47), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand  has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2023-12-22 21:31:11,056 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 21:31:11,057 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 21:31:11,057 INFO  L93              Difference]: Finished difference Result 111 states and 198 transitions.
[2023-12-22 21:31:11,091 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 21:31:11,092 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 135
[2023-12-22 21:31:11,093 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 21:31:11,098 INFO  L225             Difference]: With dead ends: 111
[2023-12-22 21:31:11,098 INFO  L226             Difference]: Without dead ends: 54
[2023-12-22 21:31:11,101 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 21:31:11,103 INFO  L413           NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2023-12-22 21:31:11,104 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2023-12-22 21:31:11,115 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 54 states.
[2023-12-22 21:31:11,131 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54.
[2023-12-22 21:31:11,132 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 54 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2023-12-22 21:31:11,134 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 81 transitions.
[2023-12-22 21:31:11,136 INFO  L78                 Accepts]: Start accepts. Automaton has 54 states and 81 transitions. Word has length 135
[2023-12-22 21:31:11,136 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 21:31:11,136 INFO  L495      AbstractCegarLoop]: Abstraction has 54 states and 81 transitions.
[2023-12-22 21:31:11,136 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2023-12-22 21:31:11,136 INFO  L276                IsEmpty]: Start isEmpty. Operand 54 states and 81 transitions.
[2023-12-22 21:31:11,139 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2023-12-22 21:31:11,140 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 21:31:11,140 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 21:31:11,153 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-22 21:31:11,341 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 21:31:11,342 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 21:31:11,342 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 21:31:11,342 INFO  L85        PathProgramCache]: Analyzing trace with hash -1442562896, now seen corresponding path program 1 times
[2023-12-22 21:31:11,343 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 21:31:11,343 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963011947]
[2023-12-22 21:31:11,343 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 21:31:11,343 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 21:31:11,344 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 21:31:11,348 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 21:31:11,363 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-22 21:31:11,713 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 21:31:11,733 INFO  L262         TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-22 21:31:11,738 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 21:31:12,480 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 553 proven. 45 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked.
[2023-12-22 21:31:12,480 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 21:31:13,060 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 75 proven. 48 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked.
[2023-12-22 21:31:13,060 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 21:31:13,061 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963011947]
[2023-12-22 21:31:13,061 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1963011947] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-22 21:31:13,061 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-22 21:31:13,061 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13
[2023-12-22 21:31:13,061 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316438136]
[2023-12-22 21:31:13,061 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-22 21:31:13,062 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-12-22 21:31:13,062 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 21:31:13,063 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-12-22 21:31:13,063 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156
[2023-12-22 21:31:13,063 INFO  L87              Difference]: Start difference. First operand 54 states and 81 transitions. Second operand  has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 3 states have call successors, (36), 3 states have call predecessors, (36), 7 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37)
[2023-12-22 21:31:15,527 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 21:31:16,177 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 21:31:16,178 INFO  L93              Difference]: Finished difference Result 161 states and 229 transitions.
[2023-12-22 21:31:16,179 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-22 21:31:16,179 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 3 states have call successors, (36), 3 states have call predecessors, (36), 7 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 135
[2023-12-22 21:31:16,180 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 21:31:16,181 INFO  L225             Difference]: With dead ends: 161
[2023-12-22 21:31:16,181 INFO  L226             Difference]: Without dead ends: 108
[2023-12-22 21:31:16,182 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 256 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=226, Invalid=476, Unknown=0, NotChecked=0, Total=702
[2023-12-22 21:31:16,182 INFO  L413           NwaCegarLoop]: 77 mSDtfsCounter, 145 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2023-12-22 21:31:16,183 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 197 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2023-12-22 21:31:16,183 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 108 states.
[2023-12-22 21:31:16,196 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 97.
[2023-12-22 21:31:16,197 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 97 states, 51 states have (on average 1.1176470588235294) internal successors, (57), 52 states have internal predecessors, (57), 40 states have call successors, (40), 5 states have call predecessors, (40), 5 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40)
[2023-12-22 21:31:16,198 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 137 transitions.
[2023-12-22 21:31:16,198 INFO  L78                 Accepts]: Start accepts. Automaton has 97 states and 137 transitions. Word has length 135
[2023-12-22 21:31:16,198 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 21:31:16,199 INFO  L495      AbstractCegarLoop]: Abstraction has 97 states and 137 transitions.
[2023-12-22 21:31:16,199 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 3 states have call successors, (36), 3 states have call predecessors, (36), 7 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37)
[2023-12-22 21:31:16,199 INFO  L276                IsEmpty]: Start isEmpty. Operand 97 states and 137 transitions.
[2023-12-22 21:31:16,200 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2023-12-22 21:31:16,200 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 21:31:16,200 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 21:31:16,216 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2023-12-22 21:31:16,411 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 21:31:16,411 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 21:31:16,412 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 21:31:16,412 INFO  L85        PathProgramCache]: Analyzing trace with hash -1442503314, now seen corresponding path program 1 times
[2023-12-22 21:31:16,412 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 21:31:16,413 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [377145796]
[2023-12-22 21:31:16,413 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 21:31:16,413 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 21:31:16,414 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 21:31:16,414 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 21:31:16,419 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-22 21:31:16,719 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 21:31:16,737 INFO  L262         TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 24 conjunts are in the unsatisfiable core
[2023-12-22 21:31:16,742 INFO  L285         TraceCheckSpWp]: Computing forward predicates...