/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_amount100_file-32.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 08:05:23,669 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 08:05:23,741 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 08:05:23,746 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 08:05:23,746 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 08:05:23,772 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 08:05:23,772 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 08:05:23,772 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 08:05:23,773 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 08:05:23,773 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 08:05:23,774 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 08:05:23,774 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 08:05:23,774 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 08:05:23,775 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 08:05:23,776 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 08:05:23,777 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 08:05:23,778 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 08:05:23,778 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 08:05:23,778 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 08:05:23,779 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 08:05:23,779 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 08:05:23,782 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 08:05:23,783 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 08:05:23,783 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 08:05:23,783 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 08:05:23,783 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 08:05:23,783 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 08:05:23,784 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 08:05:23,784 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 08:05:23,784 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 08:05:23,785 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 08:05:23,785 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 08:05:23,785 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 08:05:23,785 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 08:05:23,785 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:05:23,786 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 08:05:23,786 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 08:05:23,786 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 08:05:23,786 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 08:05:23,786 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 08:05:23,786 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 08:05:23,787 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 08:05:23,787 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 08:05:23,787 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 08:05:23,787 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 08:05:24,004 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 08:05:24,026 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 08:05:24,029 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 08:05:24,030 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 08:05:24,030 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 08:05:24,031 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-32.i
[2024-11-06 08:05:25,390 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 08:05:25,584 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 08:05:25,585 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-32.i
[2024-11-06 08:05:25,594 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31943fb54/2d2a9a23dcfc4b9b9061d579c54c11c2/FLAGf64b70901
[2024-11-06 08:05:25,612 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31943fb54/2d2a9a23dcfc4b9b9061d579c54c11c2
[2024-11-06 08:05:25,615 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 08:05:25,617 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 08:05:25,620 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 08:05:25,620 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 08:05:25,625 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 08:05:25,625 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:05:25" (1/1) ...
[2024-11-06 08:05:25,626 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@352db00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:05:25, skipping insertion in model container
[2024-11-06 08:05:25,626 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:05:25" (1/1) ...
[2024-11-06 08:05:25,675 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 08:05:25,833 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_amount100_file-32.i[916,929]
[2024-11-06 08:05:25,897 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:05:25,917 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 08:05:25,928 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_amount100_file-32.i[916,929]
[2024-11-06 08:05:25,984 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:05:26,006 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 08:05:26,007 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:05:26 WrapperNode
[2024-11-06 08:05:26,007 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 08:05:26,009 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 08:05:26,009 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 08:05:26,009 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 08:05:26,013 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:05:26" (1/1) ...
[2024-11-06 08:05:26,025 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:05:26" (1/1) ...
[2024-11-06 08:05:26,050 INFO  L138                Inliner]: procedures = 27, calls = 48, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 213
[2024-11-06 08:05:26,051 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 08:05:26,051 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 08:05:26,051 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 08:05:26,052 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 08:05:26,062 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:05:26" (1/1) ...
[2024-11-06 08:05:26,062 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:05:26" (1/1) ...
[2024-11-06 08:05:26,067 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:05:26" (1/1) ...
[2024-11-06 08:05:26,084 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 08:05:26,084 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:05:26" (1/1) ...
[2024-11-06 08:05:26,085 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:05:26" (1/1) ...
[2024-11-06 08:05:26,097 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:05:26" (1/1) ...
[2024-11-06 08:05:26,100 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:05:26" (1/1) ...
[2024-11-06 08:05:26,106 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:05:26" (1/1) ...
[2024-11-06 08:05:26,108 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:05:26" (1/1) ...
[2024-11-06 08:05:26,113 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 08:05:26,114 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 08:05:26,117 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 08:05:26,117 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 08:05:26,118 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:05:26" (1/1) ...
[2024-11-06 08:05:26,122 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:05:26,134 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:05:26,149 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 08:05:26,152 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 08:05:26,176 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 08:05:26,176 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 08:05:26,176 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 08:05:26,176 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 08:05:26,177 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 08:05:26,177 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 08:05:26,283 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 08:05:26,284 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 08:05:26,961 INFO  L?                        ?]: Removed 20 outVars from TransFormulas that were not future-live.
[2024-11-06 08:05:26,961 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 08:05:26,979 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 08:05:26,979 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 08:05:26,980 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:05:26 BoogieIcfgContainer
[2024-11-06 08:05:26,980 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 08:05:26,982 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 08:05:26,982 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 08:05:26,985 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 08:05:26,985 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:05:25" (1/3) ...
[2024-11-06 08:05:26,986 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778767d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:05:26, skipping insertion in model container
[2024-11-06 08:05:26,986 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:05:26" (2/3) ...
[2024-11-06 08:05:26,986 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778767d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:05:26, skipping insertion in model container
[2024-11-06 08:05:26,986 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:05:26" (3/3) ...
[2024-11-06 08:05:26,987 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-32.i
[2024-11-06 08:05:27,000 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 08:05:27,001 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 08:05:27,055 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 08:05:27,061 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;@78939283, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 08:05:27,062 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 08:05:27,067 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 96 states, 58 states have (on average 1.4310344827586208) internal successors, (83), 59 states have internal predecessors, (83), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2024-11-06 08:05:27,082 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 218
[2024-11-06 08:05:27,083 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:05:27,083 INFO  L215           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:27,084 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:05:27,088 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:05:27,089 INFO  L85        PathProgramCache]: Analyzing trace with hash 870512893, now seen corresponding path program 1 times
[2024-11-06 08:05:27,106 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:05:27,106 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [856869935]
[2024-11-06 08:05:27,107 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:05:27,107 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 08:05:27,108 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:05:27,110 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 08:05:27,112 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 08:05:27,438 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:05:27,447 INFO  L255         TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 08:05:27,467 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:05:27,543 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 824 proven. 0 refuted. 0 times theorem prover too weak. 1556 trivial. 0 not checked.
[2024-11-06 08:05:27,543 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:05:27,544 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:05:27,544 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [856869935]
[2024-11-06 08:05:27,545 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [856869935] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:05:27,545 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:05:27,545 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 08:05:27,548 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143736121]
[2024-11-06 08:05:27,549 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:05:27,554 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 08:05:27,554 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:05:27,576 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 08:05:27,577 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 08:05:27,580 INFO  L87              Difference]: Start difference. First operand  has 96 states, 58 states have (on average 1.4310344827586208) internal successors, (83), 59 states have internal predecessors, (83), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35)
[2024-11-06 08:05:27,612 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:05:27,612 INFO  L93              Difference]: Finished difference Result 185 states and 335 transitions.
[2024-11-06 08:05:27,613 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 08:05:27,614 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 217
[2024-11-06 08:05:27,614 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:05:27,620 INFO  L225             Difference]: With dead ends: 185
[2024-11-06 08:05:27,620 INFO  L226             Difference]: Without dead ends: 92
[2024-11-06 08:05:27,623 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 216 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 08:05:27,626 INFO  L432           NwaCegarLoop]: 146 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, 146 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 08:05:27,627 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 08:05:27,638 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2024-11-06 08:05:27,661 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92.
[2024-11-06 08:05:27,663 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 92 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 55 states have internal predecessors, (76), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2024-11-06 08:05:27,665 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 146 transitions.
[2024-11-06 08:05:27,667 INFO  L78                 Accepts]: Start accepts. Automaton has 92 states and 146 transitions. Word has length 217
[2024-11-06 08:05:27,667 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:05:27,667 INFO  L471      AbstractCegarLoop]: Abstraction has 92 states and 146 transitions.
[2024-11-06 08:05:27,668 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35)
[2024-11-06 08:05:27,668 INFO  L276                IsEmpty]: Start isEmpty. Operand 92 states and 146 transitions.
[2024-11-06 08:05:27,673 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 218
[2024-11-06 08:05:27,673 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:05:27,673 INFO  L215           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:27,686 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 08:05:27,874 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 08:05:27,875 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:05:27,875 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:05:27,875 INFO  L85        PathProgramCache]: Analyzing trace with hash 192119231, now seen corresponding path program 1 times
[2024-11-06 08:05:27,877 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:05:27,877 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [776029019]
[2024-11-06 08:05:27,877 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:05:27,877 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 08:05:27,878 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:05:27,879 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 08:05:27,881 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 08:05:28,176 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:05:28,191 INFO  L255         TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-06 08:05:28,200 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:05:28,702 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 412 proven. 93 refuted. 0 times theorem prover too weak. 1875 trivial. 0 not checked.
[2024-11-06 08:05:28,702 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:05:29,072 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 9 proven. 93 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked.
[2024-11-06 08:05:29,072 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:05:29,073 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [776029019]
[2024-11-06 08:05:29,073 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [776029019] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-06 08:05:29,073 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 08:05:29,073 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-06 08:05:29,073 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618126912]
[2024-11-06 08:05:29,073 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 08:05:29,075 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-06 08:05:29,075 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:05:29,077 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-06 08:05:29,077 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-06 08:05:29,077 INFO  L87              Difference]: Start difference. First operand 92 states and 146 transitions. Second operand  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67)
[2024-11-06 08:05:29,652 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:05:29,652 INFO  L93              Difference]: Finished difference Result 189 states and 296 transitions.
[2024-11-06 08:05:29,668 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-06 08:05:29,669 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 217
[2024-11-06 08:05:29,670 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:05:29,672 INFO  L225             Difference]: With dead ends: 189
[2024-11-06 08:05:29,672 INFO  L226             Difference]: Without dead ends: 100
[2024-11-06 08:05:29,673 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 426 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2024-11-06 08:05:29,674 INFO  L432           NwaCegarLoop]: 105 mSDtfsCounter, 109 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-06 08:05:29,675 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 243 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-06 08:05:29,676 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 100 states.
[2024-11-06 08:05:29,698 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96.
[2024-11-06 08:05:29,699 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 96 states, 58 states have (on average 1.3448275862068966) internal successors, (78), 58 states have internal predecessors, (78), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2024-11-06 08:05:29,703 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 148 transitions.
[2024-11-06 08:05:29,704 INFO  L78                 Accepts]: Start accepts. Automaton has 96 states and 148 transitions. Word has length 217
[2024-11-06 08:05:29,705 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:05:29,705 INFO  L471      AbstractCegarLoop]: Abstraction has 96 states and 148 transitions.
[2024-11-06 08:05:29,705 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67)
[2024-11-06 08:05:29,705 INFO  L276                IsEmpty]: Start isEmpty. Operand 96 states and 148 transitions.
[2024-11-06 08:05:29,711 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 219
[2024-11-06 08:05:29,712 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:05:29,712 INFO  L215           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:29,725 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2024-11-06 08:05:29,912 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 08:05:29,913 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:05:29,914 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:05:29,914 INFO  L85        PathProgramCache]: Analyzing trace with hash -227089071, now seen corresponding path program 1 times
[2024-11-06 08:05:29,915 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:05:29,915 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038926364]
[2024-11-06 08:05:29,915 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:05:29,915 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 08:05:29,916 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:05:29,919 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 08:05:29,920 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 08:05:30,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:05:30,231 INFO  L255         TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-06 08:05:30,238 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:05:32,069 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 597 proven. 255 refuted. 0 times theorem prover too weak. 1528 trivial. 0 not checked.
[2024-11-06 08:05:32,069 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:05:33,118 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 33 proven. 264 refuted. 0 times theorem prover too weak. 2083 trivial. 0 not checked.
[2024-11-06 08:05:33,119 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:05:33,119 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038926364]
[2024-11-06 08:05:33,119 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038926364] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-06 08:05:33,119 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 08:05:33,119 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19
[2024-11-06 08:05:33,120 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858621744]
[2024-11-06 08:05:33,120 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 08:05:33,123 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-06 08:05:33,123 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:05:33,124 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-06 08:05:33,124 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342
[2024-11-06 08:05:33,124 INFO  L87              Difference]: Start difference. First operand 96 states and 148 transitions. Second operand  has 19 states, 19 states have (on average 4.105263157894737) internal successors, (78), 19 states have internal predecessors, (78), 4 states have call successors, (66), 4 states have call predecessors, (66), 9 states have return successors, (67), 4 states have call predecessors, (67), 4 states have call successors, (67)
[2024-11-06 08:05:36,114 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:05:36,114 INFO  L93              Difference]: Finished difference Result 420 states and 621 transitions.
[2024-11-06 08:05:36,115 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. 
[2024-11-06 08:05:36,115 INFO  L78                 Accepts]: Start accepts. Automaton has  has 19 states, 19 states have (on average 4.105263157894737) internal successors, (78), 19 states have internal predecessors, (78), 4 states have call successors, (66), 4 states have call predecessors, (66), 9 states have return successors, (67), 4 states have call predecessors, (67), 4 states have call successors, (67) Word has length 218
[2024-11-06 08:05:36,116 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:05:36,119 INFO  L225             Difference]: With dead ends: 420
[2024-11-06 08:05:36,119 INFO  L226             Difference]: Without dead ends: 327
[2024-11-06 08:05:36,122 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 423 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1300 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1090, Invalid=3200, Unknown=0, NotChecked=0, Total=4290
[2024-11-06 08:05:36,123 INFO  L432           NwaCegarLoop]: 167 mSDtfsCounter, 671 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2024-11-06 08:05:36,123 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 790 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2024-11-06 08:05:36,125 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 327 states.
[2024-11-06 08:05:36,180 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 200.
[2024-11-06 08:05:36,181 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 200 states, 119 states have (on average 1.2857142857142858) internal successors, (153), 121 states have internal predecessors, (153), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72)
[2024-11-06 08:05:36,185 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 297 transitions.
[2024-11-06 08:05:36,186 INFO  L78                 Accepts]: Start accepts. Automaton has 200 states and 297 transitions. Word has length 218
[2024-11-06 08:05:36,186 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:05:36,187 INFO  L471      AbstractCegarLoop]: Abstraction has 200 states and 297 transitions.
[2024-11-06 08:05:36,187 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 19 states, 19 states have (on average 4.105263157894737) internal successors, (78), 19 states have internal predecessors, (78), 4 states have call successors, (66), 4 states have call predecessors, (66), 9 states have return successors, (67), 4 states have call predecessors, (67), 4 states have call successors, (67)
[2024-11-06 08:05:36,187 INFO  L276                IsEmpty]: Start isEmpty. Operand 200 states and 297 transitions.
[2024-11-06 08:05:36,193 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 219
[2024-11-06 08:05:36,193 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:05:36,193 INFO  L215           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:36,209 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 (4)] Ended with exit code 0
[2024-11-06 08:05:36,394 WARN  L453      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
[2024-11-06 08:05:36,395 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:05:36,395 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:05:36,395 INFO  L85        PathProgramCache]: Analyzing trace with hash 165937939, now seen corresponding path program 1 times
[2024-11-06 08:05:36,396 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:05:36,396 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944782448]
[2024-11-06 08:05:36,396 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:05:36,397 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 08:05:36,397 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:05:36,400 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-06 08:05:36,403 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2024-11-06 08:05:36,747 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:05:36,763 INFO  L255         TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 49 conjuncts are in the unsatisfiable core
[2024-11-06 08:05:36,780 INFO  L278         TraceCheckSpWp]: Computing forward predicates...