/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-ci_file-85.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 07:54:25,074 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 07:54:25,139 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 07:54:25,143 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 07:54:25,144 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 07:54:25,163 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 07:54:25,164 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 07:54:25,164 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 07:54:25,164 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 07:54:25,165 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 07:54:25,165 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 07:54:25,165 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 07:54:25,166 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 07:54:25,166 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 07:54:25,167 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 07:54:25,167 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 07:54:25,167 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 07:54:25,168 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 07:54:25,168 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 07:54:25,168 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 07:54:25,169 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 07:54:25,169 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 07:54:25,169 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 07:54:25,170 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 07:54:25,170 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 07:54:25,170 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 07:54:25,171 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 07:54:25,171 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 07:54:25,171 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 07:54:25,172 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 07:54:25,172 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 07:54:25,172 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 07:54:25,172 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 07:54:25,173 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 07:54:25,173 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 07:54:25,173 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 07:54:25,173 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 07:54:25,176 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 07:54:25,176 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 07:54:25,176 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 07:54:25,177 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 07:54:25,178 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 07:54:25,178 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 07:54:25,178 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 07:54:25,178 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 07:54:25,178 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 07:54:25,178 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 07:54:25,405 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 07:54:25,427 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 07:54:25,430 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 07:54:25,430 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 07:54:25,431 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 07:54:25,437 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-85.i
[2023-12-23 07:54:26,538 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 07:54:26,758 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 07:54:26,759 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-85.i
[2023-12-23 07:54:26,772 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/506dc2030/379983643f97423593a341e7ff75ea75/FLAG00c1a7e5d
[2023-12-23 07:54:26,784 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/506dc2030/379983643f97423593a341e7ff75ea75
[2023-12-23 07:54:26,786 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 07:54:26,787 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 07:54:26,788 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 07:54:26,788 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 07:54:26,795 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 07:54:26,796 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:54:26" (1/1) ...
[2023-12-23 07:54:26,797 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46636e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:54:26, skipping insertion in model container
[2023-12-23 07:54:26,797 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:54:26" (1/1) ...
[2023-12-23 07:54:26,826 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 07:54:26,943 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-ci_file-85.i[919,932]
[2023-12-23 07:54:26,996 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 07:54:27,009 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 07:54:27,017 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-ci_file-85.i[919,932]
[2023-12-23 07:54:27,047 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 07:54:27,062 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 07:54:27,062 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:54:27 WrapperNode
[2023-12-23 07:54:27,062 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 07:54:27,064 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 07:54:27,064 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 07:54:27,064 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 07:54:27,070 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:54:27" (1/1) ...
[2023-12-23 07:54:27,080 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:54:27" (1/1) ...
[2023-12-23 07:54:27,107 INFO  L138                Inliner]: procedures = 27, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 179
[2023-12-23 07:54:27,108 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 07:54:27,108 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 07:54:27,109 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 07:54:27,109 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 07:54:27,120 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:54:27" (1/1) ...
[2023-12-23 07:54:27,120 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:54:27" (1/1) ...
[2023-12-23 07:54:27,128 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:54:27" (1/1) ...
[2023-12-23 07:54:27,139 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 07:54:27,139 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:54:27" (1/1) ...
[2023-12-23 07:54:27,140 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:54:27" (1/1) ...
[2023-12-23 07:54:27,151 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:54:27" (1/1) ...
[2023-12-23 07:54:27,154 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:54:27" (1/1) ...
[2023-12-23 07:54:27,157 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:54:27" (1/1) ...
[2023-12-23 07:54:27,158 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:54:27" (1/1) ...
[2023-12-23 07:54:27,162 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 07:54:27,163 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 07:54:27,163 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 07:54:27,163 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 07:54:27,163 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:54:27" (1/1) ...
[2023-12-23 07:54:27,168 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 07:54:27,179 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 07:54:27,189 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 07:54:27,219 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 07:54:27,224 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 07:54:27,225 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 07:54:27,225 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 07:54:27,225 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 07:54:27,225 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 07:54:27,225 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 07:54:27,329 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 07:54:27,336 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 07:54:34,130 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 07:54:34,166 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 07:54:34,167 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 07:54:34,167 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:54:34 BoogieIcfgContainer
[2023-12-23 07:54:34,167 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 07:54:34,169 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 07:54:34,169 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 07:54:34,172 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 07:54:34,172 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 07:54:26" (1/3) ...
[2023-12-23 07:54:34,172 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3292bed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:54:34, skipping insertion in model container
[2023-12-23 07:54:34,172 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:54:27" (2/3) ...
[2023-12-23 07:54:34,173 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3292bed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:54:34, skipping insertion in model container
[2023-12-23 07:54:34,173 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:54:34" (3/3) ...
[2023-12-23 07:54:34,174 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-85.i
[2023-12-23 07:54:34,188 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 07:54:34,188 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 07:54:34,232 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 07:54:34,237 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;@6ed0f431, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 07:54:34,237 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 07:54:34,240 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 73 states, 45 states have (on average 1.511111111111111) internal successors, (68), 46 states have internal predecessors, (68), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25)
[2023-12-23 07:54:34,260 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2023-12-23 07:54:34,261 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:54:34,261 INFO  L195           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:54:34,262 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:54:34,266 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:54:34,266 INFO  L85        PathProgramCache]: Analyzing trace with hash -1863112645, now seen corresponding path program 1 times
[2023-12-23 07:54:34,277 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:54:34,277 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1238906039]
[2023-12-23 07:54:34,277 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:54:34,278 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 07:54:34,278 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:54:34,280 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 07:54:34,285 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 07:54:34,938 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:54:34,970 INFO  L262         TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 07:54:34,978 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 07:54:35,020 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 832 trivial. 0 not checked.
[2023-12-23 07:54:35,020 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 07:54:35,021 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 07:54:35,021 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1238906039]
[2023-12-23 07:54:35,021 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1238906039] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 07:54:35,022 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 07:54:35,022 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 07:54:35,023 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825680442]
[2023-12-23 07:54:35,024 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 07:54:35,027 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 07:54:35,028 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 07:54:35,058 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 07:54:35,059 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 07:54:35,061 INFO  L87              Difference]: Start difference. First operand  has 73 states, 45 states have (on average 1.511111111111111) internal successors, (68), 46 states have internal predecessors, (68), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand  has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25)
[2023-12-23 07:54:36,151 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 07:54:36,152 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 07:54:36,152 INFO  L93              Difference]: Finished difference Result 143 states and 259 transitions.
[2023-12-23 07:54:36,183 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 07:54:36,184 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 157
[2023-12-23 07:54:36,185 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 07:54:36,190 INFO  L225             Difference]: With dead ends: 143
[2023-12-23 07:54:36,190 INFO  L226             Difference]: Without dead ends: 71
[2023-12-23 07:54:36,193 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 07:54:36,196 INFO  L413           NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2023-12-23 07:54:36,197 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2023-12-23 07:54:36,210 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2023-12-23 07:54:36,230 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71.
[2023-12-23 07:54:36,231 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 71 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 44 states have internal predecessors, (63), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25)
[2023-12-23 07:54:36,232 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 113 transitions.
[2023-12-23 07:54:36,233 INFO  L78                 Accepts]: Start accepts. Automaton has 71 states and 113 transitions. Word has length 157
[2023-12-23 07:54:36,234 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 07:54:36,234 INFO  L495      AbstractCegarLoop]: Abstraction has 71 states and 113 transitions.
[2023-12-23 07:54:36,234 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25)
[2023-12-23 07:54:36,234 INFO  L276                IsEmpty]: Start isEmpty. Operand 71 states and 113 transitions.
[2023-12-23 07:54:36,237 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2023-12-23 07:54:36,237 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:54:36,238 INFO  L195           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:54:36,259 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-23 07:54:36,444 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 07:54:36,445 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:54:36,445 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:54:36,446 INFO  L85        PathProgramCache]: Analyzing trace with hash -1969167759, now seen corresponding path program 1 times
[2023-12-23 07:54:36,446 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:54:36,447 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1468475330]
[2023-12-23 07:54:36,447 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:54:36,447 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 07:54:36,447 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:54:36,448 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 07:54:36,474 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 07:54:37,144 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:54:37,174 INFO  L262         TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 07:54:37,182 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 07:54:38,106 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked.
[2023-12-23 07:54:38,106 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 07:54:38,106 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 07:54:38,107 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1468475330]
[2023-12-23 07:54:38,107 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1468475330] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 07:54:38,107 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 07:54:38,107 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 07:54:38,107 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6426463]
[2023-12-23 07:54:38,108 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 07:54:38,109 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 07:54:38,109 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 07:54:38,110 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 07:54:38,110 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-23 07:54:38,110 INFO  L87              Difference]: Start difference. First operand 71 states and 113 transitions. Second operand  has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25)
[2023-12-23 07:54:39,928 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 07:54:39,928 INFO  L93              Difference]: Finished difference Result 141 states and 225 transitions.
[2023-12-23 07:54:39,956 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 07:54:39,956 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 157
[2023-12-23 07:54:39,957 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 07:54:39,958 INFO  L225             Difference]: With dead ends: 141
[2023-12-23 07:54:39,958 INFO  L226             Difference]: Without dead ends: 71
[2023-12-23 07:54:39,959 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2023-12-23 07:54:39,960 INFO  L413           NwaCegarLoop]: 105 mSDtfsCounter, 143 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2023-12-23 07:54:39,961 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 124 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2023-12-23 07:54:39,961 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2023-12-23 07:54:39,972 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71.
[2023-12-23 07:54:39,972 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 71 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 44 states have internal predecessors, (62), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25)
[2023-12-23 07:54:39,973 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 112 transitions.
[2023-12-23 07:54:39,973 INFO  L78                 Accepts]: Start accepts. Automaton has 71 states and 112 transitions. Word has length 157
[2023-12-23 07:54:39,975 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 07:54:39,975 INFO  L495      AbstractCegarLoop]: Abstraction has 71 states and 112 transitions.
[2023-12-23 07:54:39,975 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25)
[2023-12-23 07:54:39,975 INFO  L276                IsEmpty]: Start isEmpty. Operand 71 states and 112 transitions.
[2023-12-23 07:54:39,977 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2023-12-23 07:54:39,977 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:54:39,978 INFO  L195           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:54:39,996 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 07:54:40,179 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 07:54:40,180 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:54:40,180 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:54:40,180 INFO  L85        PathProgramCache]: Analyzing trace with hash 1406713550, now seen corresponding path program 1 times
[2023-12-23 07:54:40,181 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:54:40,181 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1479837922]
[2023-12-23 07:54:40,181 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:54:40,181 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 07:54:40,182 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:54:40,183 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 07:54:40,187 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 07:54:40,821 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:54:40,863 INFO  L262         TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-23 07:54:40,868 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 07:54:42,972 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 624 proven. 36 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked.
[2023-12-23 07:54:42,973 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 07:54:43,762 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked.
[2023-12-23 07:54:43,762 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 07:54:43,762 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1479837922]
[2023-12-23 07:54:43,763 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1479837922] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 07:54:43,763 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 07:54:43,763 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14
[2023-12-23 07:54:43,763 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459576112]
[2023-12-23 07:54:43,763 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 07:54:43,764 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2023-12-23 07:54:43,764 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 07:54:43,765 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2023-12-23 07:54:43,765 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182
[2023-12-23 07:54:43,766 INFO  L87              Difference]: Start difference. First operand 71 states and 112 transitions. Second operand  has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (50), 3 states have call predecessors, (50), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50)
[2023-12-23 07:54:48,866 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 07:54:50,487 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 07:54:51,706 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 07:54:53,262 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 07:54:56,032 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 07:54:56,410 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 07:54:56,411 INFO  L93              Difference]: Finished difference Result 343 states and 547 transitions.
[2023-12-23 07:54:56,411 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2023-12-23 07:54:56,412 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (50), 3 states have call predecessors, (50), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) Word has length 158
[2023-12-23 07:54:56,413 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 07:54:56,415 INFO  L225             Difference]: With dead ends: 343
[2023-12-23 07:54:56,415 INFO  L226             Difference]: Without dead ends: 273
[2023-12-23 07:54:56,417 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 303 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=228, Invalid=584, Unknown=0, NotChecked=0, Total=812
[2023-12-23 07:54:56,418 INFO  L413           NwaCegarLoop]: 104 mSDtfsCounter, 641 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time
[2023-12-23 07:54:56,418 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 810 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time]
[2023-12-23 07:54:56,419 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 273 states.
[2023-12-23 07:54:56,457 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 178.
[2023-12-23 07:54:56,458 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 178 states, 112 states have (on average 1.375) internal successors, (154), 113 states have internal predecessors, (154), 61 states have call successors, (61), 4 states have call predecessors, (61), 4 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61)
[2023-12-23 07:54:56,460 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 276 transitions.
[2023-12-23 07:54:56,460 INFO  L78                 Accepts]: Start accepts. Automaton has 178 states and 276 transitions. Word has length 158
[2023-12-23 07:54:56,461 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 07:54:56,461 INFO  L495      AbstractCegarLoop]: Abstraction has 178 states and 276 transitions.
[2023-12-23 07:54:56,461 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (50), 3 states have call predecessors, (50), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50)
[2023-12-23 07:54:56,462 INFO  L276                IsEmpty]: Start isEmpty. Operand 178 states and 276 transitions.
[2023-12-23 07:54:56,464 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2023-12-23 07:54:56,464 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:54:56,464 INFO  L195           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:54:56,496 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 07:54:56,686 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 07:54:56,687 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:54:56,687 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:54:56,688 INFO  L85        PathProgramCache]: Analyzing trace with hash 1520972114, now seen corresponding path program 1 times
[2023-12-23 07:54:56,688 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:54:56,688 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034278114]
[2023-12-23 07:54:56,688 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:54:56,689 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 07:54:56,689 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:54:56,693 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 07:54:56,695 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 07:54:57,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:54:57,349 INFO  L262         TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 07:54:57,352 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 07:54:57,964 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 118 proven. 69 refuted. 0 times theorem prover too weak. 1013 trivial. 0 not checked.
[2023-12-23 07:54:57,964 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 07:54:58,374 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 3 proven. 69 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked.
[2023-12-23 07:54:58,374 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 07:54:58,374 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034278114]
[2023-12-23 07:54:58,375 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2034278114] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 07:54:58,375 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 07:54:58,375 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-23 07:54:58,375 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135602810]
[2023-12-23 07:54:58,375 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 07:54:58,376 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-23 07:54:58,376 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 07:54:58,377 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-23 07:54:58,377 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 07:54:58,377 INFO  L87              Difference]: Start difference. First operand 178 states and 276 transitions. Second operand  has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49)
[2023-12-23 07:55:00,412 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 07:55:00,487 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 07:55:00,488 INFO  L93              Difference]: Finished difference Result 323 states and 489 transitions.
[2023-12-23 07:55:00,516 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-23 07:55:00,517 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 158
[2023-12-23 07:55:00,517 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 07:55:00,521 INFO  L225             Difference]: With dead ends: 323
[2023-12-23 07:55:00,521 INFO  L226             Difference]: Without dead ends: 204
[2023-12-23 07:55:00,522 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 308 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-23 07:55:00,524 INFO  L413           NwaCegarLoop]: 78 mSDtfsCounter, 33 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2023-12-23 07:55:00,524 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 181 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2023-12-23 07:55:00,525 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 204 states.
[2023-12-23 07:55:00,570 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 190.
[2023-12-23 07:55:00,571 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 190 states, 121 states have (on average 1.322314049586777) internal successors, (160), 122 states have internal predecessors, (160), 61 states have call successors, (61), 7 states have call predecessors, (61), 7 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61)
[2023-12-23 07:55:00,574 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 282 transitions.
[2023-12-23 07:55:00,574 INFO  L78                 Accepts]: Start accepts. Automaton has 190 states and 282 transitions. Word has length 158
[2023-12-23 07:55:00,575 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 07:55:00,575 INFO  L495      AbstractCegarLoop]: Abstraction has 190 states and 282 transitions.
[2023-12-23 07:55:00,575 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49)
[2023-12-23 07:55:00,575 INFO  L276                IsEmpty]: Start isEmpty. Operand 190 states and 282 transitions.
[2023-12-23 07:55:00,579 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2023-12-23 07:55:00,579 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:55:00,579 INFO  L195           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:00,598 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 07:55:00,785 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 07:55:00,785 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:55:00,786 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:55:00,786 INFO  L85        PathProgramCache]: Analyzing trace with hash 726711104, now seen corresponding path program 1 times
[2023-12-23 07:55:00,786 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:55:00,786 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774693387]
[2023-12-23 07:55:00,786 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:55:00,787 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 07:55:00,787 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:55:00,788 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 07:55:00,815 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 07:55:01,464 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:55:01,501 INFO  L262         TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-23 07:55:01,507 INFO  L285         TraceCheckSpWp]: Computing forward predicates...