/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_has-floats_file-14.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-05 22:39:18,883 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-05 22:39:18,959 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 22:39:18,966 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-05 22:39:18,966 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-05 22:39:18,991 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-05 22:39:18,992 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-05 22:39:18,992 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-05 22:39:18,992 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-05 22:39:18,993 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-05 22:39:18,993 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-05 22:39:18,993 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-05 22:39:18,994 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-05 22:39:18,994 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-05 22:39:18,994 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-05 22:39:18,995 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-05 22:39:18,997 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-05 22:39:18,999 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-05 22:39:18,999 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-05 22:39:18,999 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-05 22:39:19,000 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-05 22:39:19,000 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-05 22:39:19,000 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-05 22:39:19,000 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-05 22:39:19,001 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-05 22:39:19,001 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-05 22:39:19,001 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-05 22:39:19,001 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-05 22:39:19,001 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-05 22:39:19,002 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-05 22:39:19,002 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-05 22:39:19,002 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-05 22:39:19,002 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-05 22:39:19,003 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-05 22:39:19,003 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 22:39:19,005 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-05 22:39:19,005 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-05 22:39:19,005 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-05 22:39:19,005 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-05 22:39:19,006 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-05 22:39:19,006 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-05 22:39:19,006 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-05 22:39:19,006 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-05 22:39:19,006 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-05 22:39:19,007 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> WOLF
[2024-11-05 22:39:19,223 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-05 22:39:19,246 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-05 22:39:19,249 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-05 22:39:19,250 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-05 22:39:19,251 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-05 22:39:19,252 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-14.i
[2024-11-05 22:39:20,567 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-05 22:39:20,753 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-05 22:39:20,753 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-14.i
[2024-11-05 22:39:20,761 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3a9db9de/1f07290420d64b91a8a1761c938e065b/FLAGcb798eef1
[2024-11-05 22:39:21,143 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3a9db9de/1f07290420d64b91a8a1761c938e065b
[2024-11-05 22:39:21,145 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-05 22:39:21,147 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-05 22:39:21,149 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-05 22:39:21,149 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-05 22:39:21,157 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-05 22:39:21,158 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:39:21" (1/1) ...
[2024-11-05 22:39:21,159 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bb87ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:39:21, skipping insertion in model container
[2024-11-05 22:39:21,159 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:39:21" (1/1) ...
[2024-11-05 22:39:21,186 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-05 22:39:21,363 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_has-floats_file-14.i[917,930]
[2024-11-05 22:39:21,414 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 22:39:21,432 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-05 22:39:21,444 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_has-floats_file-14.i[917,930]
[2024-11-05 22:39:21,464 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 22:39:21,497 INFO  L204         MainTranslator]: Completed translation
[2024-11-05 22:39:21,498 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:39:21 WrapperNode
[2024-11-05 22:39:21,498 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-05 22:39:21,499 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-05 22:39:21,499 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-05 22:39:21,499 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-05 22:39:21,505 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:39:21" (1/1) ...
[2024-11-05 22:39:21,520 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:39:21" (1/1) ...
[2024-11-05 22:39:21,541 INFO  L138                Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 123
[2024-11-05 22:39:21,542 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-05 22:39:21,542 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-05 22:39:21,542 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-05 22:39:21,543 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-05 22:39:21,557 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:39:21" (1/1) ...
[2024-11-05 22:39:21,557 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:39:21" (1/1) ...
[2024-11-05 22:39:21,561 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:39:21" (1/1) ...
[2024-11-05 22:39:21,571 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 22:39:21,571 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:39:21" (1/1) ...
[2024-11-05 22:39:21,571 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:39:21" (1/1) ...
[2024-11-05 22:39:21,578 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:39:21" (1/1) ...
[2024-11-05 22:39:21,581 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:39:21" (1/1) ...
[2024-11-05 22:39:21,582 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:39:21" (1/1) ...
[2024-11-05 22:39:21,584 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:39:21" (1/1) ...
[2024-11-05 22:39:21,587 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-05 22:39:21,588 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-05 22:39:21,591 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-05 22:39:21,591 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-05 22:39:21,592 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:39:21" (1/1) ...
[2024-11-05 22:39:21,598 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 22:39:21,608 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-05 22:39:21,625 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 22:39:21,628 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 22:39:21,655 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-05 22:39:21,655 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-05 22:39:21,655 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-05 22:39:21,655 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-05 22:39:21,655 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-05 22:39:21,657 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-05 22:39:21,740 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-05 22:39:21,742 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-05 22:39:25,139 INFO  L?                        ?]: Removed 10 outVars from TransFormulas that were not future-live.
[2024-11-05 22:39:25,139 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-05 22:39:25,154 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-05 22:39:25,155 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-05 22:39:25,155 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:39:25 BoogieIcfgContainer
[2024-11-05 22:39:25,155 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-05 22:39:25,161 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-05 22:39:25,161 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-05 22:39:25,165 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-05 22:39:25,165 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 10:39:21" (1/3) ...
[2024-11-05 22:39:25,166 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276af7f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:39:25, skipping insertion in model container
[2024-11-05 22:39:25,166 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:39:21" (2/3) ...
[2024-11-05 22:39:25,167 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276af7f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:39:25, skipping insertion in model container
[2024-11-05 22:39:25,167 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:39:25" (3/3) ...
[2024-11-05 22:39:25,168 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-14.i
[2024-11-05 22:39:25,183 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-05 22:39:25,183 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-05 22:39:25,239 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-05 22:39:25,245 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;@17b0576, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-05 22:39:25,245 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-05 22:39:25,249 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 58 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 35 states have internal predecessors, (44), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-05 22:39:25,258 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-11-05 22:39:25,259 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 22:39:25,259 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:39:25,260 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 22:39:25,264 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 22:39:25,265 INFO  L85        PathProgramCache]: Analyzing trace with hash 173013582, now seen corresponding path program 1 times
[2024-11-05 22:39:25,277 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 22:39:25,277 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419770544]
[2024-11-05 22:39:25,277 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 22:39:25,278 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 22:39:25,278 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 22:39:25,279 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 22:39:25,281 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 22:39:25,596 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 22:39:25,605 INFO  L255         TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-05 22:39:25,614 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 22:39:25,661 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 436 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked.
[2024-11-05 22:39:25,662 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 22:39:25,664 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 22:39:25,664 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [419770544]
[2024-11-05 22:39:25,665 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [419770544] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 22:39:25,665 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 22:39:25,666 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-05 22:39:25,668 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257705612]
[2024-11-05 22:39:25,669 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 22:39:25,672 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-05 22:39:25,672 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 22:39:25,690 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-05 22:39:25,691 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-05 22:39:25,693 INFO  L87              Difference]: Start difference. First operand  has 58 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 35 states have internal predecessors, (44), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand  has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)
[2024-11-05 22:39:25,716 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 22:39:25,717 INFO  L93              Difference]: Finished difference Result 109 states and 187 transitions.
[2024-11-05 22:39:25,719 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-05 22:39:25,720 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 131
[2024-11-05 22:39:25,721 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 22:39:25,730 INFO  L225             Difference]: With dead ends: 109
[2024-11-05 22:39:25,731 INFO  L226             Difference]: Without dead ends: 54
[2024-11-05 22:39:25,735 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 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 22:39:25,739 INFO  L432           NwaCegarLoop]: 79 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, 79 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 22:39:25,741 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-05 22:39:25,757 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 54 states.
[2024-11-05 22:39:25,784 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54.
[2024-11-05 22:39:25,785 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 54 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-05 22:39:25,787 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 79 transitions.
[2024-11-05 22:39:25,789 INFO  L78                 Accepts]: Start accepts. Automaton has 54 states and 79 transitions. Word has length 131
[2024-11-05 22:39:25,789 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 22:39:25,790 INFO  L471      AbstractCegarLoop]: Abstraction has 54 states and 79 transitions.
[2024-11-05 22:39:25,790 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)
[2024-11-05 22:39:25,790 INFO  L276                IsEmpty]: Start isEmpty. Operand 54 states and 79 transitions.
[2024-11-05 22:39:25,793 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-11-05 22:39:25,793 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 22:39:25,794 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:39:25,803 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 22:39:25,994 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 22:39:25,995 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 22:39:25,996 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 22:39:25,996 INFO  L85        PathProgramCache]: Analyzing trace with hash 1923071244, now seen corresponding path program 1 times
[2024-11-05 22:39:25,997 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 22:39:25,997 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435028685]
[2024-11-05 22:39:25,997 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 22:39:25,997 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 22:39:25,998 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 22:39:25,999 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 22:39:26,001 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 22:39:26,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 22:39:26,322 INFO  L255         TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-05 22:39:26,332 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 22:39:27,357 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked.
[2024-11-05 22:39:27,358 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 22:39:27,358 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 22:39:27,358 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1435028685]
[2024-11-05 22:39:27,359 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1435028685] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 22:39:27,359 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 22:39:27,359 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-05 22:39:27,359 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780883025]
[2024-11-05 22:39:27,359 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 22:39:27,362 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-05 22:39:27,362 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 22:39:27,363 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-05 22:39:27,363 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-05 22:39:27,364 INFO  L87              Difference]: Start difference. First operand 54 states and 79 transitions. Second operand  has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-05 22:39:30,197 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 22:39:32,121 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 22:39:32,122 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 22:39:32,122 INFO  L93              Difference]: Finished difference Result 160 states and 238 transitions.
[2024-11-05 22:39:32,151 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-05 22:39:32,152 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 131
[2024-11-05 22:39:32,153 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 22:39:32,155 INFO  L225             Difference]: With dead ends: 160
[2024-11-05 22:39:32,156 INFO  L226             Difference]: Without dead ends: 109
[2024-11-05 22:39:32,157 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-05 22:39:32,158 INFO  L432           NwaCegarLoop]: 76 mSDtfsCounter, 46 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time
[2024-11-05 22:39:32,158 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 221 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time]
[2024-11-05 22:39:32,159 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 109 states.
[2024-11-05 22:39:32,184 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 94.
[2024-11-05 22:39:32,184 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 94 states, 49 states have (on average 1.1224489795918366) internal successors, (55), 49 states have internal predecessors, (55), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2024-11-05 22:39:32,187 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 139 transitions.
[2024-11-05 22:39:32,188 INFO  L78                 Accepts]: Start accepts. Automaton has 94 states and 139 transitions. Word has length 131
[2024-11-05 22:39:32,188 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 22:39:32,189 INFO  L471      AbstractCegarLoop]: Abstraction has 94 states and 139 transitions.
[2024-11-05 22:39:32,189 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-05 22:39:32,189 INFO  L276                IsEmpty]: Start isEmpty. Operand 94 states and 139 transitions.
[2024-11-05 22:39:32,193 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-11-05 22:39:32,193 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 22:39:32,194 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:39:32,205 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 22:39:32,394 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
[2024-11-05 22:39:32,395 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 22:39:32,395 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 22:39:32,396 INFO  L85        PathProgramCache]: Analyzing trace with hash -1691837682, now seen corresponding path program 1 times
[2024-11-05 22:39:32,396 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 22:39:32,397 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665830421]
[2024-11-05 22:39:32,397 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 22:39:32,397 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
[2024-11-05 22:39:32,397 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 22:39:32,400 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)
[2024-11-05 22:39:32,401 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
[2024-11-05 22:39:32,693 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 22:39:32,703 INFO  L255         TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-05 22:39:32,708 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 22:39:33,467 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 30 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked.
[2024-11-05 22:39:33,468 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 22:39:34,330 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked.
[2024-11-05 22:39:34,330 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 22:39:34,330 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665830421]
[2024-11-05 22:39:34,330 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [665830421] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-05 22:39:34,331 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-05 22:39:34,331 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2024-11-05 22:39:34,331 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445333985]
[2024-11-05 22:39:34,331 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-05 22:39:34,332 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-05 22:39:34,332 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 22:39:34,337 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-05 22:39:34,337 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-05 22:39:34,337 INFO  L87              Difference]: Start difference. First operand 94 states and 139 transitions. Second operand  has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32)
[2024-11-05 22:39:36,831 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 22:39:36,927 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 22:39:36,927 INFO  L93              Difference]: Finished difference Result 157 states and 225 transitions.
[2024-11-05 22:39:36,974 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-05 22:39:36,975 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 131
[2024-11-05 22:39:36,976 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 22:39:36,977 INFO  L225             Difference]: With dead ends: 157
[2024-11-05 22:39:36,977 INFO  L226             Difference]: Without dead ends: 106
[2024-11-05 22:39:36,978 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 254 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182
[2024-11-05 22:39:36,979 INFO  L432           NwaCegarLoop]: 49 mSDtfsCounter, 105 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2024-11-05 22:39:36,980 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 103 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2024-11-05 22:39:36,980 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 106 states.
[2024-11-05 22:39:37,002 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102.
[2024-11-05 22:39:37,003 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 102 states, 55 states have (on average 1.0909090909090908) internal successors, (60), 55 states have internal predecessors, (60), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2024-11-05 22:39:37,005 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 144 transitions.
[2024-11-05 22:39:37,006 INFO  L78                 Accepts]: Start accepts. Automaton has 102 states and 144 transitions. Word has length 131
[2024-11-05 22:39:37,006 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 22:39:37,007 INFO  L471      AbstractCegarLoop]: Abstraction has 102 states and 144 transitions.
[2024-11-05 22:39:37,007 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32)
[2024-11-05 22:39:37,007 INFO  L276                IsEmpty]: Start isEmpty. Operand 102 states and 144 transitions.
[2024-11-05 22:39:37,012 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-11-05 22:39:37,012 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 22:39:37,013 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:39:37,028 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2024-11-05 22:39:37,213 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
[2024-11-05 22:39:37,214 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 22:39:37,215 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 22:39:37,215 INFO  L85        PathProgramCache]: Analyzing trace with hash -1689990640, now seen corresponding path program 1 times
[2024-11-05 22:39:37,216 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 22:39:37,216 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678846181]
[2024-11-05 22:39:37,216 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 22:39:37,216 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 22:39:37,216 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 22:39:37,220 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 22:39:37,221 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 22:39:37,512 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 22:39:37,526 INFO  L255         TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-05 22:39:37,533 INFO  L278         TraceCheckSpWp]: Computing forward predicates...