/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-48.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 08:49:04,053 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 08:49:04,114 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-06 08:49:04,118 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 08:49:04,119 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 08:49:04,147 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 08:49:04,148 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 08:49:04,148 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 08:49:04,149 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 08:49:04,151 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 08:49:04,151 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 08:49:04,151 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 08:49:04,152 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 08:49:04,154 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 08:49:04,155 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 08:49:04,155 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 08:49:04,155 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 08:49:04,155 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 08:49:04,156 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 08:49:04,156 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 08:49:04,156 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 08:49:04,157 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 08:49:04,158 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 08:49:04,158 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 08:49:04,158 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 08:49:04,158 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 08:49:04,158 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 08:49:04,159 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 08:49:04,159 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 08:49:04,159 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 08:49:04,159 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 08:49:04,160 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 08:49:04,160 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 08:49:04,160 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 08:49:04,160 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:49:04,160 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 08:49:04,161 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 08:49:04,161 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 08:49:04,161 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 08:49:04,161 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 08:49:04,161 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 08:49:04,162 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 08:49:04,162 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 08:49:04,162 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 08:49:04,162 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 08:49:04,393 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 08:49:04,416 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 08:49:04,420 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 08:49:04,421 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 08:49:04,421 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 08:49:04,422 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-48.i
[2024-11-06 08:49:05,861 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 08:49:06,123 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 08:49:06,123 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-48.i
[2024-11-06 08:49:06,138 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6953fc28/d2c3ae826db54cc08aa620f5ced6dc61/FLAG3c96aaa9a
[2024-11-06 08:49:06,151 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6953fc28/d2c3ae826db54cc08aa620f5ced6dc61
[2024-11-06 08:49:06,154 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 08:49:06,157 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 08:49:06,158 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 08:49:06,158 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 08:49:06,164 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 08:49:06,164 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:49:06" (1/1) ...
[2024-11-06 08:49:06,165 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354c36eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:06, skipping insertion in model container
[2024-11-06 08:49:06,165 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:49:06" (1/1) ...
[2024-11-06 08:49:06,226 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 08:49:06,399 WARN  L250   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_operatoramount_amount500_file-48.i[916,929]
[2024-11-06 08:49:06,674 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:49:06,705 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 08:49:06,715 WARN  L250   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_operatoramount_amount500_file-48.i[916,929]
[2024-11-06 08:49:06,821 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:49:06,847 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 08:49:06,848 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:06 WrapperNode
[2024-11-06 08:49:06,848 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 08:49:06,849 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 08:49:06,850 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 08:49:06,850 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 08:49:06,856 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:06" (1/1) ...
[2024-11-06 08:49:06,885 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:06" (1/1) ...
[2024-11-06 08:49:06,947 INFO  L138                Inliner]: procedures = 27, calls = 96, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 616
[2024-11-06 08:49:06,948 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 08:49:06,949 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 08:49:06,949 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 08:49:06,950 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 08:49:06,959 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:06" (1/1) ...
[2024-11-06 08:49:06,960 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:06" (1/1) ...
[2024-11-06 08:49:06,985 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:06" (1/1) ...
[2024-11-06 08:49:07,032 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].
[2024-11-06 08:49:07,033 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:06" (1/1) ...
[2024-11-06 08:49:07,033 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:06" (1/1) ...
[2024-11-06 08:49:07,069 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:06" (1/1) ...
[2024-11-06 08:49:07,079 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:06" (1/1) ...
[2024-11-06 08:49:07,085 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:06" (1/1) ...
[2024-11-06 08:49:07,089 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:06" (1/1) ...
[2024-11-06 08:49:07,097 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 08:49:07,098 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 08:49:07,098 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 08:49:07,098 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 08:49:07,099 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:06" (1/1) ...
[2024-11-06 08:49:07,104 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:49:07,113 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:49:07,130 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)
[2024-11-06 08:49:07,132 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
[2024-11-06 08:49:07,153 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 08:49:07,154 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 08:49:07,154 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 08:49:07,154 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 08:49:07,154 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 08:49:07,155 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 08:49:07,275 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 08:49:07,277 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 08:49:31,808 INFO  L?                        ?]: Removed 72 outVars from TransFormulas that were not future-live.
[2024-11-06 08:49:31,808 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 08:49:31,849 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 08:49:31,849 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 08:49:31,850 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:49:31 BoogieIcfgContainer
[2024-11-06 08:49:31,850 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 08:49:31,860 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 08:49:31,860 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 08:49:31,867 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 08:49:31,867 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:49:06" (1/3) ...
[2024-11-06 08:49:31,868 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59577042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:49:31, skipping insertion in model container
[2024-11-06 08:49:31,868 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:06" (2/3) ...
[2024-11-06 08:49:31,868 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59577042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:49:31, skipping insertion in model container
[2024-11-06 08:49:31,869 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:49:31" (3/3) ...
[2024-11-06 08:49:31,869 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-48.i
[2024-11-06 08:49:31,898 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 08:49:31,899 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 08:49:31,972 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 08:49:31,981 INFO  L333      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, 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;@59079507, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 08:49:31,981 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 08:49:31,991 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 255 states, 169 states have (on average 1.544378698224852) internal successors, (261), 170 states have internal predecessors, (261), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83)
[2024-11-06 08:49:32,025 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 536
[2024-11-06 08:49:32,026 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:49:32,027 INFO  L215           NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:49:32,028 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:49:32,033 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:49:32,034 INFO  L85        PathProgramCache]: Analyzing trace with hash -1868265493, now seen corresponding path program 1 times
[2024-11-06 08:49:32,050 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:49:32,051 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671211201]
[2024-11-06 08:49:32,051 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:49:32,051 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
[2024-11-06 08:49:32,052 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:49:32,055 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)
[2024-11-06 08:49:32,055 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
[2024-11-06 08:49:34,075 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:49:34,183 INFO  L255         TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 08:49:34,201 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:49:34,273 INFO  L134       CoverageAnalysis]: Checked inductivity of 13612 backedges. 3288 proven. 0 refuted. 0 times theorem prover too weak. 10324 trivial. 0 not checked.
[2024-11-06 08:49:34,274 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:49:34,275 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:49:34,275 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671211201]
[2024-11-06 08:49:34,275 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [671211201] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:49:34,275 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:49:34,276 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 08:49:34,278 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102641457]
[2024-11-06 08:49:34,278 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:49:34,284 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 08:49:34,284 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:49:34,304 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 08:49:34,305 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 08:49:34,308 INFO  L87              Difference]: Start difference. First operand  has 255 states, 169 states have (on average 1.544378698224852) internal successors, (261), 170 states have internal predecessors, (261), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) Second operand  has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 2 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83)
[2024-11-06 08:49:34,362 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:49:34,363 INFO  L93              Difference]: Finished difference Result 503 states and 931 transitions.
[2024-11-06 08:49:34,364 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 08:49:34,365 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 2 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) Word has length 535
[2024-11-06 08:49:34,365 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:49:34,373 INFO  L225             Difference]: With dead ends: 503
[2024-11-06 08:49:34,373 INFO  L226             Difference]: Without dead ends: 251
[2024-11-06 08:49:34,379 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 534 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 08:49:34,382 INFO  L432           NwaCegarLoop]: 418 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-06 08:49:34,383 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 08:49:34,399 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 251 states.
[2024-11-06 08:49:34,448 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251.
[2024-11-06 08:49:34,452 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 251 states, 166 states have (on average 1.5180722891566265) internal successors, (252), 166 states have internal predecessors, (252), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83)
[2024-11-06 08:49:34,457 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 418 transitions.
[2024-11-06 08:49:34,460 INFO  L78                 Accepts]: Start accepts. Automaton has 251 states and 418 transitions. Word has length 535
[2024-11-06 08:49:34,460 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:49:34,460 INFO  L471      AbstractCegarLoop]: Abstraction has 251 states and 418 transitions.
[2024-11-06 08:49:34,461 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 2 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83)
[2024-11-06 08:49:34,461 INFO  L276                IsEmpty]: Start isEmpty. Operand 251 states and 418 transitions.
[2024-11-06 08:49:34,470 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 536
[2024-11-06 08:49:34,470 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:49:34,470 INFO  L215           NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:49:34,555 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2024-11-06 08:49:34,671 WARN  L453      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
[2024-11-06 08:49:34,672 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:49:34,673 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:49:34,673 INFO  L85        PathProgramCache]: Analyzing trace with hash -1372955883, now seen corresponding path program 1 times
[2024-11-06 08:49:34,675 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:49:34,675 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888914755]
[2024-11-06 08:49:34,675 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:49:34,676 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
[2024-11-06 08:49:34,676 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:49:34,679 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)
[2024-11-06 08:49:34,680 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
[2024-11-06 08:49:36,708 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:49:36,829 INFO  L255         TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-06 08:49:36,855 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:50:01,938 INFO  L134       CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked.
[2024-11-06 08:50:01,939 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:50:01,939 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:50:01,939 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888914755]
[2024-11-06 08:50:01,940 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [888914755] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:50:01,940 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:50:01,940 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-06 08:50:01,940 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77654013]
[2024-11-06 08:50:01,940 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:50:01,944 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-06 08:50:01,944 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:50:01,946 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-06 08:50:01,946 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-06 08:50:01,946 INFO  L87              Difference]: Start difference. First operand 251 states and 418 transitions. Second operand  has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83)
[2024-11-06 08:50:12,332 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:50:16,346 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:50:20,357 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:50:25,764 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:50:29,768 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:50:33,771 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:50:33,772 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:50:33,772 INFO  L93              Difference]: Finished difference Result 748 states and 1249 transitions.
[2024-11-06 08:50:34,094 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-06 08:50:34,095 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 535
[2024-11-06 08:50:34,097 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:50:34,102 INFO  L225             Difference]: With dead ends: 748
[2024-11-06 08:50:34,102 INFO  L226             Difference]: Without dead ends: 500
[2024-11-06 08:50:34,104 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-06 08:50:34,105 INFO  L432           NwaCegarLoop]: 416 mSDtfsCounter, 251 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 167 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.2s IncrementalHoareTripleChecker+Time
[2024-11-06 08:50:34,106 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 1485 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 178 Invalid, 6 Unknown, 0 Unchecked, 31.2s Time]
[2024-11-06 08:50:34,108 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 500 states.
[2024-11-06 08:50:34,213 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 386.
[2024-11-06 08:50:34,215 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 386 states, 217 states have (on average 1.3963133640552996) internal successors, (303), 217 states have internal predecessors, (303), 166 states have call successors, (166), 2 states have call predecessors, (166), 2 states have return successors, (166), 166 states have call predecessors, (166), 166 states have call successors, (166)
[2024-11-06 08:50:34,222 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 635 transitions.
[2024-11-06 08:50:34,224 INFO  L78                 Accepts]: Start accepts. Automaton has 386 states and 635 transitions. Word has length 535
[2024-11-06 08:50:34,226 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:50:34,227 INFO  L471      AbstractCegarLoop]: Abstraction has 386 states and 635 transitions.
[2024-11-06 08:50:34,227 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83)
[2024-11-06 08:50:34,227 INFO  L276                IsEmpty]: Start isEmpty. Operand 386 states and 635 transitions.
[2024-11-06 08:50:34,237 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 536
[2024-11-06 08:50:34,238 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:50:34,238 INFO  L215           NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:50:34,333 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
[2024-11-06 08:50:34,439 WARN  L453      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
[2024-11-06 08:50:34,440 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:50:34,440 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:50:34,441 INFO  L85        PathProgramCache]: Analyzing trace with hash 535501907, now seen corresponding path program 1 times
[2024-11-06 08:50:34,442 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:50:34,442 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265868520]
[2024-11-06 08:50:34,442 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:50:34,443 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
[2024-11-06 08:50:34,443 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:50:34,446 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)
[2024-11-06 08:50:34,448 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
[2024-11-06 08:50:36,515 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:50:36,635 INFO  L255         TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-06 08:50:36,646 INFO  L278         TraceCheckSpWp]: Computing forward predicates...