/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-pr-cn_file-98.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 12:39:59,273 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 12:39:59,329 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 12:39:59,332 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 12:39:59,336 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 12:39:59,358 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 12:39:59,358 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 12:39:59,359 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 12:39:59,359 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 12:39:59,363 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 12:39:59,363 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 12:39:59,364 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 12:39:59,364 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 12:39:59,365 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 12:39:59,365 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 12:39:59,366 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 12:39:59,366 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 12:39:59,366 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 12:39:59,366 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 12:39:59,366 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 12:39:59,366 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 12:39:59,367 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 12:39:59,367 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 12:39:59,367 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 12:39:59,367 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 12:39:59,367 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 12:39:59,367 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 12:39:59,368 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 12:39:59,368 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 12:39:59,368 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 12:39:59,369 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 12:39:59,369 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 12:39:59,369 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 12:39:59,369 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 12:39:59,369 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 12:39:59,369 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 12:39:59,369 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 12:39:59,369 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 12:39:59,370 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 12:39:59,370 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 12:39:59,370 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 12:39:59,370 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 12:39:59,370 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 12:39:59,370 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 12:39:59,371 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 12:39:59,371 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 12:39:59,371 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 12:39:59,545 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 12:39:59,560 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 12:39:59,562 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 12:39:59,562 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 12:39:59,562 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 12:39:59,563 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-98.i
[2023-12-23 12:40:00,628 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 12:40:00,807 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 12:40:00,807 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-98.i
[2023-12-23 12:40:00,820 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/259952967/969ad3cf94e940f48701dcd895949b4e/FLAGa5eeae768
[2023-12-23 12:40:00,835 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/259952967/969ad3cf94e940f48701dcd895949b4e
[2023-12-23 12:40:00,837 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 12:40:00,838 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 12:40:00,839 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 12:40:00,839 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 12:40:00,843 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 12:40:00,843 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:40:00" (1/1) ...
[2023-12-23 12:40:00,844 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ea6868b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:40:00, skipping insertion in model container
[2023-12-23 12:40:00,844 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:40:00" (1/1) ...
[2023-12-23 12:40:00,880 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 12:40:01,001 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-pr-cn_file-98.i[919,932]
[2023-12-23 12:40:01,055 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 12:40:01,067 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 12:40:01,075 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-pr-cn_file-98.i[919,932]
[2023-12-23 12:40:01,105 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 12:40:01,118 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 12:40:01,119 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:40:01 WrapperNode
[2023-12-23 12:40:01,119 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 12:40:01,120 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 12:40:01,120 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 12:40:01,120 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 12:40:01,126 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:40:01" (1/1) ...
[2023-12-23 12:40:01,138 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:40:01" (1/1) ...
[2023-12-23 12:40:01,162 INFO  L138                Inliner]: procedures = 27, calls = 55, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 229
[2023-12-23 12:40:01,162 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 12:40:01,163 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 12:40:01,163 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 12:40:01,163 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 12:40:01,176 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:40:01" (1/1) ...
[2023-12-23 12:40:01,177 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:40:01" (1/1) ...
[2023-12-23 12:40:01,184 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:40:01" (1/1) ...
[2023-12-23 12:40:01,203 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 12:40:01,203 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:40:01" (1/1) ...
[2023-12-23 12:40:01,204 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:40:01" (1/1) ...
[2023-12-23 12:40:01,211 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:40:01" (1/1) ...
[2023-12-23 12:40:01,265 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:40:01" (1/1) ...
[2023-12-23 12:40:01,267 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:40:01" (1/1) ...
[2023-12-23 12:40:01,268 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:40:01" (1/1) ...
[2023-12-23 12:40:01,290 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 12:40:01,291 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 12:40:01,291 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 12:40:01,291 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 12:40:01,291 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:40:01" (1/1) ...
[2023-12-23 12:40:01,296 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 12:40:01,317 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 12:40:01,330 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 12:40:01,366 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 12:40:01,372 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 12:40:01,372 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 12:40:01,372 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 12:40:01,373 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 12:40:01,374 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 12:40:01,374 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 12:40:01,447 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 12:40:01,449 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 12:40:06,919 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 12:40:07,012 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 12:40:07,013 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 12:40:07,013 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:40:07 BoogieIcfgContainer
[2023-12-23 12:40:07,013 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 12:40:07,015 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 12:40:07,015 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 12:40:07,017 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 12:40:07,017 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 12:40:00" (1/3) ...
[2023-12-23 12:40:07,017 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e49047a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:40:07, skipping insertion in model container
[2023-12-23 12:40:07,017 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:40:01" (2/3) ...
[2023-12-23 12:40:07,018 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e49047a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:40:07, skipping insertion in model container
[2023-12-23 12:40:07,018 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:40:07" (3/3) ...
[2023-12-23 12:40:07,018 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-98.i
[2023-12-23 12:40:07,057 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 12:40:07,057 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 12:40:07,095 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 12:40:07,101 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;@6a942385, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 12:40:07,101 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 12:40:07,104 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 99 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 55 states have internal predecessors, (76), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2023-12-23 12:40:07,127 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 253
[2023-12-23 12:40:07,128 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:40:07,129 INFO  L195           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:40:07,129 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:40:07,133 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:40:07,134 INFO  L85        PathProgramCache]: Analyzing trace with hash 1778141966, now seen corresponding path program 1 times
[2023-12-23 12:40:07,145 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:40:07,146 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243018978]
[2023-12-23 12:40:07,146 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:40:07,147 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 12:40:07,147 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:40:07,149 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 12:40:07,190 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 12:40:07,647 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:40:07,673 INFO  L262         TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 12:40:07,682 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 12:40:07,767 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 1474 proven. 0 refuted. 0 times theorem prover too weak. 1970 trivial. 0 not checked.
[2023-12-23 12:40:07,767 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 12:40:07,768 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 12:40:07,768 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243018978]
[2023-12-23 12:40:07,768 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243018978] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 12:40:07,769 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 12:40:07,769 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 12:40:07,770 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188902484]
[2023-12-23 12:40:07,770 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 12:40:07,773 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 12:40:07,774 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 12:40:07,806 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 12:40:07,807 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 12:40:07,809 INFO  L87              Difference]: Start difference. First operand  has 99 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 55 states have internal predecessors, (76), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42)
[2023-12-23 12:40:08,444 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 12:40:08,444 INFO  L93              Difference]: Finished difference Result 195 states and 360 transitions.
[2023-12-23 12:40:08,467 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 12:40:08,468 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 252
[2023-12-23 12:40:08,468 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 12:40:08,474 INFO  L225             Difference]: With dead ends: 195
[2023-12-23 12:40:08,474 INFO  L226             Difference]: Without dead ends: 97
[2023-12-23 12:40:08,478 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 251 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 12:40:08,480 INFO  L413           NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-23 12:40:08,484 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-23 12:40:08,504 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 97 states.
[2023-12-23 12:40:08,540 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97.
[2023-12-23 12:40:08,541 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 97 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 53 states have internal predecessors, (71), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2023-12-23 12:40:08,543 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 155 transitions.
[2023-12-23 12:40:08,544 INFO  L78                 Accepts]: Start accepts. Automaton has 97 states and 155 transitions. Word has length 252
[2023-12-23 12:40:08,544 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 12:40:08,544 INFO  L495      AbstractCegarLoop]: Abstraction has 97 states and 155 transitions.
[2023-12-23 12:40:08,544 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42)
[2023-12-23 12:40:08,544 INFO  L276                IsEmpty]: Start isEmpty. Operand 97 states and 155 transitions.
[2023-12-23 12:40:08,547 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 253
[2023-12-23 12:40:08,547 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:40:08,548 INFO  L195           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:40:08,567 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 12:40:08,765 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 12:40:08,766 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:40:08,766 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:40:08,767 INFO  L85        PathProgramCache]: Analyzing trace with hash -975032114, now seen corresponding path program 1 times
[2023-12-23 12:40:08,767 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:40:08,767 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749699594]
[2023-12-23 12:40:08,768 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:40:08,768 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 12:40:08,768 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:40:08,769 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 12:40:08,776 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 12:40:09,164 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:40:09,185 INFO  L262         TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 12:40:09,195 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 12:40:09,346 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked.
[2023-12-23 12:40:09,346 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 12:40:09,347 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 12:40:09,347 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749699594]
[2023-12-23 12:40:09,347 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1749699594] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 12:40:09,347 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 12:40:09,347 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 12:40:09,348 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549784509]
[2023-12-23 12:40:09,348 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 12:40:09,349 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 12:40:09,350 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 12:40:09,351 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 12:40:09,351 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 12:40:09,351 INFO  L87              Difference]: Start difference. First operand 97 states and 155 transitions. Second operand  has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2023-12-23 12:40:09,927 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 12:40:09,928 INFO  L93              Difference]: Finished difference Result 268 states and 428 transitions.
[2023-12-23 12:40:09,928 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 12:40:09,929 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 252
[2023-12-23 12:40:09,930 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 12:40:09,931 INFO  L225             Difference]: With dead ends: 268
[2023-12-23 12:40:09,931 INFO  L226             Difference]: Without dead ends: 172
[2023-12-23 12:40:09,933 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 250 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 12:40:09,933 INFO  L413           NwaCegarLoop]: 262 mSDtfsCounter, 151 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-12-23 12:40:09,934 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 379 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-12-23 12:40:09,934 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 172 states.
[2023-12-23 12:40:09,946 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 97.
[2023-12-23 12:40:09,946 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 97 states, 53 states have (on average 1.320754716981132) internal successors, (70), 53 states have internal predecessors, (70), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2023-12-23 12:40:09,947 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 154 transitions.
[2023-12-23 12:40:09,948 INFO  L78                 Accepts]: Start accepts. Automaton has 97 states and 154 transitions. Word has length 252
[2023-12-23 12:40:09,949 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 12:40:09,949 INFO  L495      AbstractCegarLoop]: Abstraction has 97 states and 154 transitions.
[2023-12-23 12:40:09,949 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2023-12-23 12:40:09,949 INFO  L276                IsEmpty]: Start isEmpty. Operand 97 states and 154 transitions.
[2023-12-23 12:40:09,952 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 253
[2023-12-23 12:40:09,952 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:40:09,952 INFO  L195           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:40:09,969 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2023-12-23 12:40:10,167 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 12:40:10,168 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:40:10,170 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:40:10,171 INFO  L85        PathProgramCache]: Analyzing trace with hash -716866676, now seen corresponding path program 1 times
[2023-12-23 12:40:10,171 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:40:10,171 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164889395]
[2023-12-23 12:40:10,172 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:40:10,172 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 12:40:10,172 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:40:10,173 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 12:40:10,177 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 12:40:10,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:40:10,573 INFO  L262         TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 12:40:10,577 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 12:40:10,675 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked.
[2023-12-23 12:40:10,676 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 12:40:10,676 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 12:40:10,676 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1164889395]
[2023-12-23 12:40:10,676 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1164889395] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 12:40:10,676 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 12:40:10,676 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 12:40:10,676 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877663772]
[2023-12-23 12:40:10,677 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 12:40:10,677 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 12:40:10,677 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 12:40:10,678 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 12:40:10,678 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 12:40:10,678 INFO  L87              Difference]: Start difference. First operand 97 states and 154 transitions. Second operand  has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2023-12-23 12:40:11,854 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 12:40:11,854 INFO  L93              Difference]: Finished difference Result 364 states and 579 transitions.
[2023-12-23 12:40:11,859 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 12:40:11,859 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 252
[2023-12-23 12:40:11,860 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 12:40:11,863 INFO  L225             Difference]: With dead ends: 364
[2023-12-23 12:40:11,864 INFO  L226             Difference]: Without dead ends: 268
[2023-12-23 12:40:11,865 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-23 12:40:11,865 INFO  L413           NwaCegarLoop]: 263 mSDtfsCounter, 270 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2023-12-23 12:40:11,866 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 640 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2023-12-23 12:40:11,866 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 268 states.
[2023-12-23 12:40:11,912 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 189.
[2023-12-23 12:40:11,913 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 189 states, 102 states have (on average 1.3137254901960784) internal successors, (134), 102 states have internal predecessors, (134), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84)
[2023-12-23 12:40:11,914 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 302 transitions.
[2023-12-23 12:40:11,914 INFO  L78                 Accepts]: Start accepts. Automaton has 189 states and 302 transitions. Word has length 252
[2023-12-23 12:40:11,914 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 12:40:11,915 INFO  L495      AbstractCegarLoop]: Abstraction has 189 states and 302 transitions.
[2023-12-23 12:40:11,915 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2023-12-23 12:40:11,915 INFO  L276                IsEmpty]: Start isEmpty. Operand 189 states and 302 transitions.
[2023-12-23 12:40:11,917 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 253
[2023-12-23 12:40:11,917 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:40:11,917 INFO  L195           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:40:11,942 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 12:40:12,131 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 12:40:12,131 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:40:12,132 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:40:12,132 INFO  L85        PathProgramCache]: Analyzing trace with hash -715019634, now seen corresponding path program 1 times
[2023-12-23 12:40:12,132 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:40:12,132 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [70754309]
[2023-12-23 12:40:12,132 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:40:12,133 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 12:40:12,133 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:40:12,134 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 12:40:12,140 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 12:40:12,516 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:40:12,545 INFO  L262         TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 14 conjunts are in the unsatisfiable core
[2023-12-23 12:40:12,554 INFO  L285         TraceCheckSpWp]: Computing forward predicates...