/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 WOLF -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-33.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-05 22:53:55,842 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-05 22:53:55,895 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-05 22:53:55,904 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-05 22:53:55,905 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-05 22:53:55,940 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-05 22:53:55,941 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-05 22:53:55,941 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-05 22:53:55,942 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-05 22:53:55,942 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-05 22:53:55,944 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-05 22:53:55,944 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-05 22:53:55,945 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-05 22:53:55,948 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-05 22:53:55,949 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-05 22:53:55,949 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-05 22:53:55,949 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-05 22:53:55,949 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-05 22:53:55,950 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-05 22:53:55,950 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-05 22:53:55,950 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-05 22:53:55,951 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-05 22:53:55,952 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-05 22:53:55,952 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-05 22:53:55,952 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-05 22:53:55,952 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-05 22:53:55,953 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-05 22:53:55,953 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-05 22:53:55,953 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-05 22:53:55,953 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-05 22:53:55,954 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-05 22:53:55,954 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-05 22:53:55,954 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-05 22:53:55,954 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-05 22:53:55,954 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 22:53:55,955 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-05 22:53:55,955 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-05 22:53:55,957 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-05 22:53:55,957 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-05 22:53:55,958 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-05 22:53:55,958 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-05 22:53:55,958 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-05 22:53:55,958 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-05 22:53:55,958 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-05 22:53:55,959 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> WOLF
[2024-11-05 22:53:56,188 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-05 22:53:56,211 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-05 22:53:56,217 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-05 22:53:56,218 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-05 22:53:56,218 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-05 22:53:56,220 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-33.i
[2024-11-05 22:53:57,727 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-05 22:53:57,922 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-05 22:53:57,922 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-33.i
[2024-11-05 22:53:57,929 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12ba37999/623bb067751b4560841e96ec93744bcb/FLAG41c8d36e1
[2024-11-05 22:53:57,941 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12ba37999/623bb067751b4560841e96ec93744bcb
[2024-11-05 22:53:57,944 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-05 22:53:57,945 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-05 22:53:57,946 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-05 22:53:57,946 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-05 22:53:57,952 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-05 22:53:57,953 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:53:57" (1/1) ...
[2024-11-05 22:53:57,954 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7785ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:53:57, skipping insertion in model container
[2024-11-05 22:53:57,954 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:53:57" (1/1) ...
[2024-11-05 22:53:57,983 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-05 22:53:58,130 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_floatingpointinfluence_no-floats_file-33.i[916,929]
[2024-11-05 22:53:58,178 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 22:53:58,197 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-05 22:53:58,208 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_floatingpointinfluence_no-floats_file-33.i[916,929]
[2024-11-05 22:53:58,232 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 22:53:58,251 INFO  L204         MainTranslator]: Completed translation
[2024-11-05 22:53:58,252 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:53:58 WrapperNode
[2024-11-05 22:53:58,252 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-05 22:53:58,253 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-05 22:53:58,253 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-05 22:53:58,253 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-05 22:53:58,260 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:53:58" (1/1) ...
[2024-11-05 22:53:58,270 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:53:58" (1/1) ...
[2024-11-05 22:53:58,291 INFO  L138                Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94
[2024-11-05 22:53:58,291 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-05 22:53:58,293 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-05 22:53:58,293 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-05 22:53:58,293 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-05 22:53:58,304 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:53:58" (1/1) ...
[2024-11-05 22:53:58,304 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:53:58" (1/1) ...
[2024-11-05 22:53:58,310 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:53:58" (1/1) ...
[2024-11-05 22:53:58,328 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].
[2024-11-05 22:53:58,329 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:53:58" (1/1) ...
[2024-11-05 22:53:58,329 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:53:58" (1/1) ...
[2024-11-05 22:53:58,336 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:53:58" (1/1) ...
[2024-11-05 22:53:58,339 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:53:58" (1/1) ...
[2024-11-05 22:53:58,341 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:53:58" (1/1) ...
[2024-11-05 22:53:58,342 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:53:58" (1/1) ...
[2024-11-05 22:53:58,344 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-05 22:53:58,345 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-05 22:53:58,345 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-05 22:53:58,346 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-05 22:53:58,346 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:53:58" (1/1) ...
[2024-11-05 22:53:58,356 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 22:53:58,367 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-05 22:53:58,379 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)
[2024-11-05 22:53:58,381 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
[2024-11-05 22:53:58,400 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-05 22:53:58,400 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-05 22:53:58,400 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-05 22:53:58,401 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-05 22:53:58,401 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-05 22:53:58,401 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-05 22:53:58,469 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-05 22:53:58,472 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-05 22:53:58,759 INFO  L?                        ?]: Removed 12 outVars from TransFormulas that were not future-live.
[2024-11-05 22:53:58,763 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-05 22:53:58,776 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-05 22:53:58,778 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-05 22:53:58,778 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:53:58 BoogieIcfgContainer
[2024-11-05 22:53:58,778 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-05 22:53:58,780 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-05 22:53:58,781 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-05 22:53:58,785 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-05 22:53:58,785 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 10:53:57" (1/3) ...
[2024-11-05 22:53:58,786 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48c211f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:53:58, skipping insertion in model container
[2024-11-05 22:53:58,786 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:53:58" (2/3) ...
[2024-11-05 22:53:58,787 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48c211f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:53:58, skipping insertion in model container
[2024-11-05 22:53:58,787 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:53:58" (3/3) ...
[2024-11-05 22:53:58,788 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-33.i
[2024-11-05 22:53:58,806 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-05 22:53:58,807 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-05 22:53:58,910 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-05 22:53:58,917 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;@129ffacb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-05 22:53:58,918 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-05 22:53:58,922 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 44 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-05 22:53:58,931 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2024-11-05 22:53:58,932 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 22:53:58,933 INFO  L215           NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 22:53:58,933 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 22:53:58,939 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 22:53:58,939 INFO  L85        PathProgramCache]: Analyzing trace with hash -105396506, now seen corresponding path program 1 times
[2024-11-05 22:53:58,952 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 22:53:58,953 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534857919]
[2024-11-05 22:53:58,954 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 22:53:58,954 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
[2024-11-05 22:53:58,954 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 22:53:58,958 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)
[2024-11-05 22:53:58,959 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
[2024-11-05 22:53:59,100 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 22:53:59,103 INFO  L255         TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-05 22:53:59,112 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 22:53:59,150 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked.
[2024-11-05 22:53:59,150 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 22:53:59,151 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 22:53:59,151 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534857919]
[2024-11-05 22:53:59,152 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534857919] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 22:53:59,152 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 22:53:59,152 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-05 22:53:59,155 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31571900]
[2024-11-05 22:53:59,156 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 22:53:59,161 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-05 22:53:59,161 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 22:53:59,180 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-05 22:53:59,181 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-05 22:53:59,183 INFO  L87              Difference]: Start difference. First operand  has 44 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12)
[2024-11-05 22:53:59,202 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 22:53:59,202 INFO  L93              Difference]: Finished difference Result 81 states and 132 transitions.
[2024-11-05 22:53:59,203 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-05 22:53:59,205 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 81
[2024-11-05 22:53:59,205 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 22:53:59,213 INFO  L225             Difference]: With dead ends: 81
[2024-11-05 22:53:59,213 INFO  L226             Difference]: Without dead ends: 40
[2024-11-05 22:53:59,216 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-05 22:53:59,223 INFO  L432           NwaCegarLoop]: 56 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, 56 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
[2024-11-05 22:53:59,224 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-05 22:53:59,239 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2024-11-05 22:53:59,260 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40.
[2024-11-05 22:53:59,262 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-05 22:53:59,263 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 56 transitions.
[2024-11-05 22:53:59,265 INFO  L78                 Accepts]: Start accepts. Automaton has 40 states and 56 transitions. Word has length 81
[2024-11-05 22:53:59,265 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 22:53:59,265 INFO  L471      AbstractCegarLoop]: Abstraction has 40 states and 56 transitions.
[2024-11-05 22:53:59,266 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12)
[2024-11-05 22:53:59,266 INFO  L276                IsEmpty]: Start isEmpty. Operand 40 states and 56 transitions.
[2024-11-05 22:53:59,269 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2024-11-05 22:53:59,269 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 22:53:59,269 INFO  L215           NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 22:53:59,276 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2024-11-05 22:53:59,470 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
[2024-11-05 22:53:59,471 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 22:53:59,472 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 22:53:59,472 INFO  L85        PathProgramCache]: Analyzing trace with hash -1016815898, now seen corresponding path program 1 times
[2024-11-05 22:53:59,473 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 22:53:59,473 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1404293317]
[2024-11-05 22:53:59,473 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 22:53:59,473 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
[2024-11-05 22:53:59,473 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 22:53:59,475 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)
[2024-11-05 22:53:59,476 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
[2024-11-05 22:53:59,566 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 22:53:59,570 INFO  L255         TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-05 22:53:59,577 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 22:54:00,197 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-05 22:54:00,198 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 22:54:00,386 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 22:54:00,386 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1404293317]
[2024-11-05 22:54:00,386 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1404293317] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-05 22:54:00,387 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [15166128]
[2024-11-05 22:54:00,387 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 22:54:00,387 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-05 22:54:00,387 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-05 22:54:00,407 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-05 22:54:00,409 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-05 22:54:00,549 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 22:54:00,552 INFO  L255         TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-05 22:54:00,556 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 22:54:00,652 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2024-11-05 22:54:00,652 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 22:54:00,653 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [15166128] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 22:54:00,653 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-05 22:54:00,654 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10
[2024-11-05 22:54:00,654 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247763849]
[2024-11-05 22:54:00,655 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 22:54:00,658 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-05 22:54:00,658 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 22:54:00,659 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-05 22:54:00,659 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132
[2024-11-05 22:54:00,659 INFO  L87              Difference]: Start difference. First operand 40 states and 56 transitions. Second operand  has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12)
[2024-11-05 22:54:00,784 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 22:54:00,784 INFO  L93              Difference]: Finished difference Result 105 states and 151 transitions.
[2024-11-05 22:54:00,785 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-05 22:54:00,785 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 81
[2024-11-05 22:54:00,786 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 22:54:00,788 INFO  L225             Difference]: With dead ends: 105
[2024-11-05 22:54:00,788 INFO  L226             Difference]: Without dead ends: 68
[2024-11-05 22:54:00,789 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156
[2024-11-05 22:54:00,790 INFO  L432           NwaCegarLoop]: 86 mSDtfsCounter, 47 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-05 22:54:00,791 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 246 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-05 22:54:00,792 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2024-11-05 22:54:00,801 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 40.
[2024-11-05 22:54:00,802 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 26 states have internal predecessors, (30), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-05 22:54:00,803 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions.
[2024-11-05 22:54:00,803 INFO  L78                 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 81
[2024-11-05 22:54:00,805 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 22:54:00,805 INFO  L471      AbstractCegarLoop]: Abstraction has 40 states and 54 transitions.
[2024-11-05 22:54:00,805 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12)
[2024-11-05 22:54:00,805 INFO  L276                IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions.
[2024-11-05 22:54:00,807 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2024-11-05 22:54:00,807 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 22:54:00,808 INFO  L215           NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 22:54:00,813 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2024-11-05 22:54:01,012 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
[2024-11-05 22:54:01,208 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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
[2024-11-05 22:54:01,209 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 22:54:01,210 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 22:54:01,210 INFO  L85        PathProgramCache]: Analyzing trace with hash -959557596, now seen corresponding path program 1 times
[2024-11-05 22:54:01,210 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 22:54:01,210 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1188779219]
[2024-11-05 22:54:01,211 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 22:54:01,211 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
[2024-11-05 22:54:01,211 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 22:54:01,214 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)
[2024-11-05 22:54:01,215 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
[2024-11-05 22:54:01,283 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 22:54:01,286 INFO  L255         TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-05 22:54:01,290 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 22:54:01,734 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-05 22:54:01,735 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 22:54:01,883 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 22:54:01,883 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1188779219]
[2024-11-05 22:54:01,883 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1188779219] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-05 22:54:01,883 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [115512490]
[2024-11-05 22:54:01,883 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 22:54:01,884 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-05 22:54:01,884 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-05 22:54:01,886 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-05 22:54:01,887 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2024-11-05 22:54:02,002 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 22:54:02,004 INFO  L255         TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-05 22:54:02,008 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 22:54:02,360 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-05 22:54:02,360 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 22:54:02,471 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [115512490] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-05 22:54:02,471 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-05 22:54:02,471 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6
[2024-11-05 22:54:02,472 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447730726]
[2024-11-05 22:54:02,472 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-05 22:54:02,472 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-05 22:54:02,472 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 22:54:02,473 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-05 22:54:02,473 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2024-11-05 22:54:02,474 INFO  L87              Difference]: Start difference. First operand 40 states and 54 transitions. Second operand  has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12)
[2024-11-05 22:54:02,788 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 22:54:02,788 INFO  L93              Difference]: Finished difference Result 121 states and 162 transitions.
[2024-11-05 22:54:02,794 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-11-05 22:54:02,794 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 81
[2024-11-05 22:54:02,795 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 22:54:02,796 INFO  L225             Difference]: With dead ends: 121
[2024-11-05 22:54:02,797 INFO  L226             Difference]: Without dead ends: 84
[2024-11-05 22:54:02,801 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240
[2024-11-05 22:54:02,802 INFO  L432           NwaCegarLoop]: 40 mSDtfsCounter, 49 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-05 22:54:02,802 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 181 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-05 22:54:02,805 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 84 states.
[2024-11-05 22:54:02,828 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 69.
[2024-11-05 22:54:02,829 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 69 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 41 states have internal predecessors, (45), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-05 22:54:02,831 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 93 transitions.
[2024-11-05 22:54:02,832 INFO  L78                 Accepts]: Start accepts. Automaton has 69 states and 93 transitions. Word has length 81
[2024-11-05 22:54:02,833 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 22:54:02,833 INFO  L471      AbstractCegarLoop]: Abstraction has 69 states and 93 transitions.
[2024-11-05 22:54:02,833 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12)
[2024-11-05 22:54:02,834 INFO  L276                IsEmpty]: Start isEmpty. Operand 69 states and 93 transitions.
[2024-11-05 22:54:02,835 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2024-11-05 22:54:02,835 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 22:54:02,835 INFO  L215           NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 22:54:02,842 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 (5)] Forceful destruction successful, exit code 0
[2024-11-05 22:54:03,038 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0
[2024-11-05 22:54:03,236 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-05 22:54:03,236 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 22:54:03,237 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 22:54:03,237 INFO  L85        PathProgramCache]: Analyzing trace with hash -1352584606, now seen corresponding path program 1 times
[2024-11-05 22:54:03,238 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 22:54:03,238 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265194776]
[2024-11-05 22:54:03,238 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 22:54:03,238 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
[2024-11-05 22:54:03,238 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 22:54:03,241 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-05 22:54:03,243 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2024-11-05 22:54:03,323 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 22:54:03,326 INFO  L255         TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 19 conjuncts are in the unsatisfiable core
[2024-11-05 22:54:03,331 INFO  L278         TraceCheckSpWp]: Computing forward predicates...