/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_fillercodesize_ps-cn-50_file-81.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 06:40:17,954 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 06:40:18,006 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 06:40:18,009 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 06:40:18,010 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 06:40:18,026 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 06:40:18,026 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 06:40:18,026 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 06:40:18,027 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 06:40:18,029 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 06:40:18,030 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 06:40:18,030 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 06:40:18,030 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 06:40:18,031 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 06:40:18,031 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 06:40:18,031 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 06:40:18,032 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 06:40:18,032 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 06:40:18,033 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 06:40:18,033 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 06:40:18,033 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 06:40:18,033 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 06:40:18,033 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 06:40:18,033 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 06:40:18,033 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 06:40:18,034 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 06:40:18,034 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 06:40:18,034 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 06:40:18,034 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 06:40:18,034 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 06:40:18,035 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 06:40:18,035 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 06:40:18,035 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 06:40:18,035 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 06:40:18,035 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 06:40:18,035 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 06:40:18,035 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 06:40:18,036 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 06:40:18,036 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 06:40:18,036 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 06:40:18,036 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 06:40:18,040 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 06:40:18,040 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 06:40:18,040 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 06:40:18,040 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 06:40:18,040 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 06:40:18,040 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 06:40:18,249 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 06:40:18,264 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 06:40:18,266 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 06:40:18,267 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 06:40:18,267 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 06:40:18,268 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-81.i
[2023-12-23 06:40:19,221 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 06:40:19,371 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 06:40:19,372 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-81.i
[2023-12-23 06:40:19,378 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/854a88ca9/c8011f498d9645e28c89603c7199ba21/FLAG27ef5bf5c
[2023-12-23 06:40:19,390 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/854a88ca9/c8011f498d9645e28c89603c7199ba21
[2023-12-23 06:40:19,392 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 06:40:19,393 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 06:40:19,393 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 06:40:19,393 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 06:40:19,397 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 06:40:19,398 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:40:19" (1/1) ...
[2023-12-23 06:40:19,398 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66942fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:40:19, skipping insertion in model container
[2023-12-23 06:40:19,398 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:40:19" (1/1) ...
[2023-12-23 06:40:19,420 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 06:40:19,513 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_fillercodesize_ps-cn-50_file-81.i[915,928]
[2023-12-23 06:40:19,561 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 06:40:19,574 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 06:40:19,582 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_fillercodesize_ps-cn-50_file-81.i[915,928]
[2023-12-23 06:40:19,617 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 06:40:19,629 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 06:40:19,630 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:40:19 WrapperNode
[2023-12-23 06:40:19,630 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 06:40:19,630 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 06:40:19,630 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 06:40:19,631 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 06:40:19,635 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:40:19" (1/1) ...
[2023-12-23 06:40:19,646 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:40:19" (1/1) ...
[2023-12-23 06:40:19,684 INFO  L138                Inliner]: procedures = 27, calls = 63, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 257
[2023-12-23 06:40:19,684 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 06:40:19,685 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 06:40:19,685 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 06:40:19,685 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 06:40:19,693 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:40:19" (1/1) ...
[2023-12-23 06:40:19,693 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:40:19" (1/1) ...
[2023-12-23 06:40:19,697 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:40:19" (1/1) ...
[2023-12-23 06:40:19,709 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 06:40:19,709 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:40:19" (1/1) ...
[2023-12-23 06:40:19,709 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:40:19" (1/1) ...
[2023-12-23 06:40:19,725 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:40:19" (1/1) ...
[2023-12-23 06:40:19,741 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:40:19" (1/1) ...
[2023-12-23 06:40:19,744 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:40:19" (1/1) ...
[2023-12-23 06:40:19,745 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:40:19" (1/1) ...
[2023-12-23 06:40:19,748 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 06:40:19,749 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 06:40:19,749 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 06:40:19,749 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 06:40:19,749 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:40:19" (1/1) ...
[2023-12-23 06:40:19,764 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 06:40:19,774 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 06:40:19,786 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 06:40:19,803 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 06:40:19,808 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 06:40:19,808 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 06:40:19,808 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 06:40:19,809 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 06:40:19,809 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 06:40:19,809 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 06:40:19,901 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 06:40:19,903 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 06:40:20,989 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 06:40:21,036 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 06:40:21,036 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 06:40:21,037 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:40:21 BoogieIcfgContainer
[2023-12-23 06:40:21,037 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 06:40:21,038 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 06:40:21,038 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 06:40:21,045 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 06:40:21,045 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 06:40:19" (1/3) ...
[2023-12-23 06:40:21,046 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@626b725a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:40:21, skipping insertion in model container
[2023-12-23 06:40:21,046 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:40:19" (2/3) ...
[2023-12-23 06:40:21,047 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@626b725a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:40:21, skipping insertion in model container
[2023-12-23 06:40:21,047 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:40:21" (3/3) ...
[2023-12-23 06:40:21,048 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-81.i
[2023-12-23 06:40:21,060 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 06:40:21,060 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 06:40:21,101 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 06:40:21,105 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;@42abc1c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 06:40:21,105 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 06:40:21,111 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 112 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 60 states have internal predecessors, (83), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50)
[2023-12-23 06:40:21,125 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 298
[2023-12-23 06:40:21,125 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 06:40:21,126 INFO  L195           NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:21,126 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 06:40:21,129 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 06:40:21,129 INFO  L85        PathProgramCache]: Analyzing trace with hash 1342699368, now seen corresponding path program 1 times
[2023-12-23 06:40:21,138 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 06:40:21,139 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460909001]
[2023-12-23 06:40:21,139 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 06:40:21,139 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 06:40:21,139 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 06:40:21,141 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 06:40:21,142 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 06:40:21,411 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 06:40:21,426 INFO  L262         TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 06:40:21,436 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 06:40:21,474 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 1970 proven. 0 refuted. 0 times theorem prover too weak. 2930 trivial. 0 not checked.
[2023-12-23 06:40:21,475 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 06:40:21,475 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 06:40:21,475 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [460909001]
[2023-12-23 06:40:21,475 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [460909001] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 06:40:21,476 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 06:40:21,476 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 06:40:21,477 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963659493]
[2023-12-23 06:40:21,477 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 06:40:21,480 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 06:40:21,480 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 06:40:21,498 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 06:40:21,498 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 06:40:21,501 INFO  L87              Difference]: Start difference. First operand  has 112 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 60 states have internal predecessors, (83), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand  has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50)
[2023-12-23 06:40:21,552 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 06:40:21,552 INFO  L93              Difference]: Finished difference Result 221 states and 414 transitions.
[2023-12-23 06:40:21,557 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 06:40:21,559 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 297
[2023-12-23 06:40:21,559 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 06:40:21,566 INFO  L225             Difference]: With dead ends: 221
[2023-12-23 06:40:21,566 INFO  L226             Difference]: Without dead ends: 110
[2023-12-23 06:40:21,573 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 296 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 06:40:21,578 INFO  L413           NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-23 06:40:21,579 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 175 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 06:40:21,590 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 110 states.
[2023-12-23 06:40:21,634 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110.
[2023-12-23 06:40:21,635 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 110 states, 58 states have (on average 1.3448275862068966) internal successors, (78), 58 states have internal predecessors, (78), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50)
[2023-12-23 06:40:21,642 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 178 transitions.
[2023-12-23 06:40:21,643 INFO  L78                 Accepts]: Start accepts. Automaton has 110 states and 178 transitions. Word has length 297
[2023-12-23 06:40:21,644 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 06:40:21,645 INFO  L495      AbstractCegarLoop]: Abstraction has 110 states and 178 transitions.
[2023-12-23 06:40:21,645 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50)
[2023-12-23 06:40:21,645 INFO  L276                IsEmpty]: Start isEmpty. Operand 110 states and 178 transitions.
[2023-12-23 06:40:21,652 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 298
[2023-12-23 06:40:21,652 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 06:40:21,652 INFO  L195           NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:21,664 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 06:40:21,865 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 06:40:21,865 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 06:40:21,866 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 06:40:21,866 INFO  L85        PathProgramCache]: Analyzing trace with hash -246314720, now seen corresponding path program 1 times
[2023-12-23 06:40:21,867 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 06:40:21,867 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1344479165]
[2023-12-23 06:40:21,867 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 06:40:21,867 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 06:40:21,867 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 06:40:21,868 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 06:40:21,870 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 06:40:22,124 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 06:40:22,138 INFO  L262         TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 06:40:22,145 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 06:40:22,478 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked.
[2023-12-23 06:40:22,478 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 06:40:22,479 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 06:40:22,479 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1344479165]
[2023-12-23 06:40:22,479 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1344479165] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 06:40:22,479 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 06:40:22,479 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 06:40:22,479 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759366006]
[2023-12-23 06:40:22,479 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 06:40:22,481 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 06:40:22,481 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 06:40:22,481 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 06:40:22,482 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 06:40:22,482 INFO  L87              Difference]: Start difference. First operand 110 states and 178 transitions. Second operand  has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50)
[2023-12-23 06:40:22,549 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 06:40:22,550 INFO  L93              Difference]: Finished difference Result 328 states and 532 transitions.
[2023-12-23 06:40:22,550 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 06:40:22,550 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 297
[2023-12-23 06:40:22,551 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 06:40:22,553 INFO  L225             Difference]: With dead ends: 328
[2023-12-23 06:40:22,553 INFO  L226             Difference]: Without dead ends: 219
[2023-12-23 06:40:22,554 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 295 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 06:40:22,554 INFO  L413           NwaCegarLoop]: 205 mSDtfsCounter, 41 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-23 06:40:22,555 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 375 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 06:40:22,555 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 219 states.
[2023-12-23 06:40:22,609 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 217.
[2023-12-23 06:40:22,609 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 217 states, 114 states have (on average 1.3421052631578947) internal successors, (153), 114 states have internal predecessors, (153), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100)
[2023-12-23 06:40:22,611 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 353 transitions.
[2023-12-23 06:40:22,611 INFO  L78                 Accepts]: Start accepts. Automaton has 217 states and 353 transitions. Word has length 297
[2023-12-23 06:40:22,613 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 06:40:22,613 INFO  L495      AbstractCegarLoop]: Abstraction has 217 states and 353 transitions.
[2023-12-23 06:40:22,614 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50)
[2023-12-23 06:40:22,614 INFO  L276                IsEmpty]: Start isEmpty. Operand 217 states and 353 transitions.
[2023-12-23 06:40:22,616 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 299
[2023-12-23 06:40:22,616 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 06:40:22,617 INFO  L195           NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:22,629 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 06:40:22,826 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 06:40:22,827 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 06:40:22,827 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 06:40:22,827 INFO  L85        PathProgramCache]: Analyzing trace with hash 1937927349, now seen corresponding path program 1 times
[2023-12-23 06:40:22,828 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 06:40:22,828 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635590276]
[2023-12-23 06:40:22,828 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 06:40:22,828 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 06:40:22,828 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 06:40:22,829 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 06:40:22,831 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 06:40:23,076 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 06:40:23,091 INFO  L262         TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 06:40:23,097 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 06:40:23,384 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 1377 proven. 123 refuted. 0 times theorem prover too weak. 3400 trivial. 0 not checked.
[2023-12-23 06:40:23,384 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 06:40:23,488 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 06:40:23,488 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [635590276]
[2023-12-23 06:40:23,488 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [635590276] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 06:40:23,488 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [406141022]
[2023-12-23 06:40:23,489 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 06:40:23,489 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 06:40:23,489 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 06:40:23,492 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 06:40:23,512 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2023-12-23 06:40:24,055 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 06:40:24,067 INFO  L262         TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-23 06:40:24,072 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 06:40:24,379 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 1377 proven. 123 refuted. 0 times theorem prover too weak. 3400 trivial. 0 not checked.
[2023-12-23 06:40:24,380 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 06:40:24,434 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [406141022] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 06:40:24,434 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 06:40:24,435 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6
[2023-12-23 06:40:24,435 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537917939]
[2023-12-23 06:40:24,435 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 06:40:24,437 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-23 06:40:24,437 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 06:40:24,438 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-23 06:40:24,438 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2023-12-23 06:40:24,439 INFO  L87              Difference]: Start difference. First operand 217 states and 353 transitions. Second operand  has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (50), 2 states have call predecessors, (50), 3 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50)
[2023-12-23 06:40:25,259 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 06:40:25,259 INFO  L93              Difference]: Finished difference Result 571 states and 920 transitions.
[2023-12-23 06:40:25,260 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-12-23 06:40:25,260 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (50), 2 states have call predecessors, (50), 3 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 298
[2023-12-23 06:40:25,261 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 06:40:25,263 INFO  L225             Difference]: With dead ends: 571
[2023-12-23 06:40:25,263 INFO  L226             Difference]: Without dead ends: 355
[2023-12-23 06:40:25,264 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 649 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306
[2023-12-23 06:40:25,265 INFO  L413           NwaCegarLoop]: 234 mSDtfsCounter, 127 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2023-12-23 06:40:25,265 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 611 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2023-12-23 06:40:25,266 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 355 states.
[2023-12-23 06:40:25,302 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 225.
[2023-12-23 06:40:25,303 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 225 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 120 states have internal predecessors, (157), 100 states have call successors, (100), 4 states have call predecessors, (100), 4 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100)
[2023-12-23 06:40:25,304 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 357 transitions.
[2023-12-23 06:40:25,304 INFO  L78                 Accepts]: Start accepts. Automaton has 225 states and 357 transitions. Word has length 298
[2023-12-23 06:40:25,305 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 06:40:25,305 INFO  L495      AbstractCegarLoop]: Abstraction has 225 states and 357 transitions.
[2023-12-23 06:40:25,305 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (50), 2 states have call predecessors, (50), 3 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50)
[2023-12-23 06:40:25,305 INFO  L276                IsEmpty]: Start isEmpty. Operand 225 states and 357 transitions.
[2023-12-23 06:40:25,306 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 300
[2023-12-23 06:40:25,307 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 06:40:25,307 INFO  L195           NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:25,321 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 06:40:25,532 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0
[2023-12-23 06:40:25,721 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-23 06:40:25,721 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 06:40:25,721 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 06:40:25,722 INFO  L85        PathProgramCache]: Analyzing trace with hash -55818998, now seen corresponding path program 1 times
[2023-12-23 06:40:25,722 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 06:40:25,722 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1176265248]
[2023-12-23 06:40:25,722 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 06:40:25,723 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 06:40:25,723 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 06:40:25,723 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 06:40:25,725 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-23 06:40:25,962 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 06:40:25,977 INFO  L262         TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-23 06:40:25,981 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 06:40:26,286 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 939 proven. 132 refuted. 0 times theorem prover too weak. 3829 trivial. 0 not checked.
[2023-12-23 06:40:26,286 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 06:40:26,402 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked.
[2023-12-23 06:40:26,403 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 06:40:26,403 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1176265248]
[2023-12-23 06:40:26,403 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1176265248] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-23 06:40:26,403 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-23 06:40:26,403 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9
[2023-12-23 06:40:26,403 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026162086]
[2023-12-23 06:40:26,403 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 06:40:26,404 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 06:40:26,404 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 06:40:26,404 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 06:40:26,405 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2023-12-23 06:40:26,405 INFO  L87              Difference]: Start difference. First operand 225 states and 357 transitions. Second operand  has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50)
[2023-12-23 06:40:26,520 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 06:40:26,520 INFO  L93              Difference]: Finished difference Result 495 states and 776 transitions.
[2023-12-23 06:40:26,520 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 06:40:26,521 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 299
[2023-12-23 06:40:26,521 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 06:40:26,523 INFO  L225             Difference]: With dead ends: 495
[2023-12-23 06:40:26,523 INFO  L226             Difference]: Without dead ends: 271
[2023-12-23 06:40:26,523 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2023-12-23 06:40:26,524 INFO  L413           NwaCegarLoop]: 181 mSDtfsCounter, 52 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-23 06:40:26,524 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 344 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-23 06:40:26,525 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 271 states.
[2023-12-23 06:40:26,549 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 267.
[2023-12-23 06:40:26,550 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 267 states, 152 states have (on average 1.2960526315789473) internal successors, (197), 154 states have internal predecessors, (197), 108 states have call successors, (108), 6 states have call predecessors, (108), 6 states have return successors, (108), 106 states have call predecessors, (108), 108 states have call successors, (108)
[2023-12-23 06:40:26,551 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 413 transitions.
[2023-12-23 06:40:26,552 INFO  L78                 Accepts]: Start accepts. Automaton has 267 states and 413 transitions. Word has length 299
[2023-12-23 06:40:26,552 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 06:40:26,552 INFO  L495      AbstractCegarLoop]: Abstraction has 267 states and 413 transitions.
[2023-12-23 06:40:26,553 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50)
[2023-12-23 06:40:26,553 INFO  L276                IsEmpty]: Start isEmpty. Operand 267 states and 413 transitions.
[2023-12-23 06:40:26,554 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 300
[2023-12-23 06:40:26,554 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 06:40:26,554 INFO  L195           NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:26,582 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 (6)] Forceful destruction successful, exit code 0
[2023-12-23 06:40:26,768 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 06:40:26,768 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 06:40:26,769 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 06:40:26,769 INFO  L85        PathProgramCache]: Analyzing trace with hash -55759416, now seen corresponding path program 1 times
[2023-12-23 06:40:26,769 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 06:40:26,769 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1221677423]
[2023-12-23 06:40:26,770 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 06:40:26,770 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 06:40:26,770 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 06:40:26,771 INFO  L229       MonitoredProcess]: Starting monitored process 7 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 06:40:26,793 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 (7)] Waiting until timeout for monitored process
[2023-12-23 06:40:27,169 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 06:40:27,184 INFO  L262         TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 34 conjunts are in the unsatisfiable core
[2023-12-23 06:40:27,192 INFO  L285         TraceCheckSpWp]: Computing forward predicates...