/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-ps-co_file-86.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 16:57:05,397 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 16:57:05,475 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 16:57:05,479 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 16:57:05,479 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 16:57:05,502 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 16:57:05,502 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 16:57:05,502 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 16:57:05,503 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 16:57:05,506 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 16:57:05,506 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 16:57:05,506 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 16:57:05,506 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 16:57:05,507 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 16:57:05,507 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 16:57:05,508 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 16:57:05,508 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 16:57:05,508 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 16:57:05,508 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 16:57:05,509 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 16:57:05,509 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 16:57:05,510 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 16:57:05,510 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 16:57:05,510 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 16:57:05,510 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 16:57:05,510 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 16:57:05,511 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 16:57:05,511 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 16:57:05,511 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 16:57:05,511 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 16:57:05,512 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 16:57:05,512 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 16:57:05,512 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 16:57:05,512 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 16:57:05,512 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 16:57:05,512 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 16:57:05,513 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 16:57:05,513 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 16:57:05,513 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 16:57:05,513 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 16:57:05,513 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 16:57:05,513 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 16:57:05,513 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 16:57:05,514 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 16:57:05,514 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 16:57:05,514 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 16:57:05,515 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 16:57:05,714 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 16:57:05,743 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 16:57:05,744 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 16:57:05,745 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 16:57:05,747 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 16:57:05,748 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i
[2023-12-23 16:57:06,856 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 16:57:07,039 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 16:57:07,039 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i
[2023-12-23 16:57:07,054 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80d42430a/653ef8ac86534d2c9fee522b566597ac/FLAG3506b6844
[2023-12-23 16:57:07,066 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80d42430a/653ef8ac86534d2c9fee522b566597ac
[2023-12-23 16:57:07,068 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 16:57:07,069 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 16:57:07,070 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 16:57:07,070 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 16:57:07,077 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 16:57:07,078 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:57:07" (1/1) ...
[2023-12-23 16:57:07,078 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35162008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:57:07, skipping insertion in model container
[2023-12-23 16:57:07,078 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:57:07" (1/1) ...
[2023-12-23 16:57:07,121 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 16:57:07,242 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-ps-co_file-86.i[919,932]
[2023-12-23 16:57:07,303 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 16:57:07,333 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 16:57:07,342 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-ps-co_file-86.i[919,932]
[2023-12-23 16:57:07,372 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 16:57:07,384 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 16:57:07,385 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:57:07 WrapperNode
[2023-12-23 16:57:07,385 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 16:57:07,386 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 16:57:07,386 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 16:57:07,386 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 16:57:07,390 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:57:07" (1/1) ...
[2023-12-23 16:57:07,399 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:57:07" (1/1) ...
[2023-12-23 16:57:07,425 INFO  L138                Inliner]: procedures = 27, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 189
[2023-12-23 16:57:07,426 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 16:57:07,426 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 16:57:07,426 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 16:57:07,426 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 16:57:07,434 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:57:07" (1/1) ...
[2023-12-23 16:57:07,434 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:57:07" (1/1) ...
[2023-12-23 16:57:07,451 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:57:07" (1/1) ...
[2023-12-23 16:57:07,468 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 16:57:07,468 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:57:07" (1/1) ...
[2023-12-23 16:57:07,468 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:57:07" (1/1) ...
[2023-12-23 16:57:07,475 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:57:07" (1/1) ...
[2023-12-23 16:57:07,478 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:57:07" (1/1) ...
[2023-12-23 16:57:07,481 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:57:07" (1/1) ...
[2023-12-23 16:57:07,482 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:57:07" (1/1) ...
[2023-12-23 16:57:07,484 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 16:57:07,485 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 16:57:07,485 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 16:57:07,485 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 16:57:07,486 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:57:07" (1/1) ...
[2023-12-23 16:57:07,498 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 16:57:07,506 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 16:57:07,550 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 16:57:07,572 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 16:57:07,597 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 16:57:07,598 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 16:57:07,598 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 16:57:07,598 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 16:57:07,598 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 16:57:07,598 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 16:57:07,657 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 16:57:07,659 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 16:57:08,180 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 16:57:08,209 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 16:57:08,209 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 16:57:08,209 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:57:08 BoogieIcfgContainer
[2023-12-23 16:57:08,209 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 16:57:08,211 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 16:57:08,211 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 16:57:08,213 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 16:57:08,213 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:57:07" (1/3) ...
[2023-12-23 16:57:08,213 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd83c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:57:08, skipping insertion in model container
[2023-12-23 16:57:08,213 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:57:07" (2/3) ...
[2023-12-23 16:57:08,214 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd83c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:57:08, skipping insertion in model container
[2023-12-23 16:57:08,214 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:57:08" (3/3) ...
[2023-12-23 16:57:08,214 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i
[2023-12-23 16:57:08,225 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 16:57:08,226 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 16:57:08,255 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 16:57:08,259 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;@f1f3321, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 16:57:08,259 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 16:57:08,268 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 78 states, 48 states have (on average 1.5) internal successors, (72), 49 states have internal predecessors, (72), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2023-12-23 16:57:08,284 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 171
[2023-12-23 16:57:08,285 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:57:08,285 INFO  L195           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:08,286 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:57:08,289 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:57:08,289 INFO  L85        PathProgramCache]: Analyzing trace with hash -488209307, now seen corresponding path program 1 times
[2023-12-23 16:57:08,300 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:57:08,300 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1287413115]
[2023-12-23 16:57:08,300 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:57:08,301 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 16:57:08,301 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:57:08,303 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 16:57:08,316 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 16:57:08,485 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:57:08,496 INFO  L262         TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 16:57:08,503 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 16:57:08,562 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 1076 trivial. 0 not checked.
[2023-12-23 16:57:08,562 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 16:57:08,563 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 16:57:08,563 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1287413115]
[2023-12-23 16:57:08,563 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1287413115] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 16:57:08,564 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 16:57:08,564 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 16:57:08,565 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337285012]
[2023-12-23 16:57:08,566 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 16:57:08,570 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 16:57:08,570 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 16:57:08,595 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 16:57:08,595 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 16:57:08,597 INFO  L87              Difference]: Start difference. First operand  has 78 states, 48 states have (on average 1.5) internal successors, (72), 49 states have internal predecessors, (72), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand  has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27)
[2023-12-23 16:57:08,699 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 16:57:08,700 INFO  L93              Difference]: Finished difference Result 153 states and 277 transitions.
[2023-12-23 16:57:08,711 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 16:57:08,712 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 170
[2023-12-23 16:57:08,712 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 16:57:08,717 INFO  L225             Difference]: With dead ends: 153
[2023-12-23 16:57:08,717 INFO  L226             Difference]: Without dead ends: 76
[2023-12-23 16:57:08,719 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 169 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 16:57:08,721 INFO  L413           NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-23 16:57:08,722 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-23 16:57:08,734 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 76 states.
[2023-12-23 16:57:08,750 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76.
[2023-12-23 16:57:08,751 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 76 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 47 states have internal predecessors, (65), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2023-12-23 16:57:08,752 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 119 transitions.
[2023-12-23 16:57:08,753 INFO  L78                 Accepts]: Start accepts. Automaton has 76 states and 119 transitions. Word has length 170
[2023-12-23 16:57:08,753 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 16:57:08,753 INFO  L495      AbstractCegarLoop]: Abstraction has 76 states and 119 transitions.
[2023-12-23 16:57:08,753 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27)
[2023-12-23 16:57:08,754 INFO  L276                IsEmpty]: Start isEmpty. Operand 76 states and 119 transitions.
[2023-12-23 16:57:08,756 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2023-12-23 16:57:08,756 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:57:08,756 INFO  L195           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:08,767 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-23 16:57:08,964 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 16:57:08,966 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:57:08,966 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:57:08,966 INFO  L85        PathProgramCache]: Analyzing trace with hash 32513902, now seen corresponding path program 1 times
[2023-12-23 16:57:08,967 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:57:08,967 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499911260]
[2023-12-23 16:57:08,967 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:57:08,967 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 16:57:08,968 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:57:08,973 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 16:57:08,982 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 16:57:09,194 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:57:09,209 INFO  L262         TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 16:57:09,215 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 16:57:09,419 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked.
[2023-12-23 16:57:09,419 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 16:57:09,419 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 16:57:09,420 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499911260]
[2023-12-23 16:57:09,420 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [499911260] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 16:57:09,420 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 16:57:09,420 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 16:57:09,420 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119670995]
[2023-12-23 16:57:09,420 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 16:57:09,421 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 16:57:09,421 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 16:57:09,422 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 16:57:09,422 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 16:57:09,422 INFO  L87              Difference]: Start difference. First operand 76 states and 119 transitions. Second operand  has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)
[2023-12-23 16:57:09,517 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 16:57:09,517 INFO  L93              Difference]: Finished difference Result 226 states and 355 transitions.
[2023-12-23 16:57:09,517 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 16:57:09,518 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171
[2023-12-23 16:57:09,518 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 16:57:09,520 INFO  L225             Difference]: With dead ends: 226
[2023-12-23 16:57:09,520 INFO  L226             Difference]: Without dead ends: 151
[2023-12-23 16:57:09,521 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 16:57:09,521 INFO  L413           NwaCegarLoop]: 134 mSDtfsCounter, 45 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-23 16:57:09,522 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 247 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-23 16:57:09,523 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 151 states.
[2023-12-23 16:57:09,542 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149.
[2023-12-23 16:57:09,542 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 149 states, 92 states have (on average 1.3804347826086956) internal successors, (127), 92 states have internal predecessors, (127), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54)
[2023-12-23 16:57:09,544 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 235 transitions.
[2023-12-23 16:57:09,544 INFO  L78                 Accepts]: Start accepts. Automaton has 149 states and 235 transitions. Word has length 171
[2023-12-23 16:57:09,545 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 16:57:09,545 INFO  L495      AbstractCegarLoop]: Abstraction has 149 states and 235 transitions.
[2023-12-23 16:57:09,545 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)
[2023-12-23 16:57:09,545 INFO  L276                IsEmpty]: Start isEmpty. Operand 149 states and 235 transitions.
[2023-12-23 16:57:09,547 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2023-12-23 16:57:09,547 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:57:09,547 INFO  L195           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:09,556 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 16:57:09,755 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 16:57:09,756 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:57:09,757 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:57:09,757 INFO  L85        PathProgramCache]: Analyzing trace with hash 455215728, now seen corresponding path program 1 times
[2023-12-23 16:57:09,758 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:57:09,758 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991094344]
[2023-12-23 16:57:09,758 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:57:09,758 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 16:57:09,758 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:57:09,759 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 16:57:09,774 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 16:57:09,913 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:57:09,925 INFO  L262         TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-23 16:57:09,936 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 16:57:10,589 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked.
[2023-12-23 16:57:10,589 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 16:57:10,589 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 16:57:10,592 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991094344]
[2023-12-23 16:57:10,593 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [991094344] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 16:57:10,593 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 16:57:10,595 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 16:57:10,598 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585197451]
[2023-12-23 16:57:10,599 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 16:57:10,599 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 16:57:10,600 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 16:57:10,601 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 16:57:10,601 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-23 16:57:10,601 INFO  L87              Difference]: Start difference. First operand 149 states and 235 transitions. Second operand  has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)
[2023-12-23 16:57:11,130 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 16:57:11,130 INFO  L93              Difference]: Finished difference Result 386 states and 607 transitions.
[2023-12-23 16:57:11,140 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-23 16:57:11,140 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171
[2023-12-23 16:57:11,141 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 16:57:11,142 INFO  L225             Difference]: With dead ends: 386
[2023-12-23 16:57:11,142 INFO  L226             Difference]: Without dead ends: 238
[2023-12-23 16:57:11,144 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-23 16:57:11,150 INFO  L413           NwaCegarLoop]: 105 mSDtfsCounter, 108 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-12-23 16:57:11,150 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 368 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-12-23 16:57:11,151 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 238 states.
[2023-12-23 16:57:11,185 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 206.
[2023-12-23 16:57:11,186 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 206 states, 121 states have (on average 1.3305785123966942) internal successors, (161), 121 states have internal predecessors, (161), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81)
[2023-12-23 16:57:11,187 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 323 transitions.
[2023-12-23 16:57:11,188 INFO  L78                 Accepts]: Start accepts. Automaton has 206 states and 323 transitions. Word has length 171
[2023-12-23 16:57:11,188 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 16:57:11,188 INFO  L495      AbstractCegarLoop]: Abstraction has 206 states and 323 transitions.
[2023-12-23 16:57:11,188 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)
[2023-12-23 16:57:11,189 INFO  L276                IsEmpty]: Start isEmpty. Operand 206 states and 323 transitions.
[2023-12-23 16:57:11,190 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2023-12-23 16:57:11,190 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:57:11,191 INFO  L195           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:11,198 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 16:57:11,398 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 16:57:11,399 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:57:11,399 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:57:11,399 INFO  L85        PathProgramCache]: Analyzing trace with hash -131590286, now seen corresponding path program 1 times
[2023-12-23 16:57:11,400 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:57:11,400 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184111806]
[2023-12-23 16:57:11,400 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:57:11,400 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 16:57:11,400 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:57:11,401 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 16:57:11,403 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 16:57:11,616 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:57:11,629 INFO  L262         TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 31 conjunts are in the unsatisfiable core
[2023-12-23 16:57:11,635 INFO  L285         TraceCheckSpWp]: Computing forward predicates...