/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c


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


This is Ultimate 0.2.3-dev-f954360
[2023-04-02 00:47:16,573 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-04-02 00:47:16,574 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
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[2023-04-02 00:47:16,600 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
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[2023-04-02 00:47:16,602 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2023-04-02 00:47:16,605 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-04-02 00:47:16,608 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2023-04-02 00:47:16,610 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-04-02 00:47:16,611 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-04-02 00:47:16,612 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
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[2023-04-02 00:47:16,612 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2023-04-02 00:47:16,613 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-04-02 00:47:16,614 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-04-02 00:47:16,628 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-04-02 00:47:16,628 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-04-02 00:47:16,629 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-04-02 00:47:16,629 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-04-02 00:47:16,629 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-04-02 00:47:16,629 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-04-02 00:47:16,630 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-04-02 00:47:16,630 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-04-02 00:47:16,630 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-04-02 00:47:16,630 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-04-02 00:47:16,630 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-04-02 00:47:16,630 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-04-02 00:47:16,630 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-04-02 00:47:16,631 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-04-02 00:47:16,631 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-04-02 00:47:16,631 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-04-02 00:47:16,631 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-04-02 00:47:16,631 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-04-02 00:47:16,631 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-04-02 00:47:16,631 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-04-02 00:47:16,631 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-04-02 00:47:16,631 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-04-02 00:47:16,632 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-04-02 00:47:16,632 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-04-02 00:47:16,632 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-04-02 00:47:16,632 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-04-02 00:47:16,632 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-04-02 00:47:16,632 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-04-02 00:47:16,632 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-04-02 00:47:16,632 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-04-02 00:47:16,633 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-04-02 00:47:16,633 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-04-02 00:47:16,633 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-04-02 00:47:16,633 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-04-02 00:47:16,633 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-04-02 00:47:16,633 INFO  L138        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-04-02 00:47:16,826 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-04-02 00:47:16,851 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-04-02 00:47:16,853 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-04-02 00:47:16,854 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-04-02 00:47:16,855 INFO  L275        PluginConnector]: CDTParser initialized
[2023-04-02 00:47:16,856 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c
[2023-04-02 00:47:17,885 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-04-02 00:47:18,044 INFO  L351              CDTParser]: Found 1 translation units.
[2023-04-02 00:47:18,044 INFO  L172              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c
[2023-04-02 00:47:18,048 INFO  L394              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53855e4a9/ffeacf8b37ff43669861aff939c80744/FLAGfebf066e2
[2023-04-02 00:47:18,065 INFO  L402              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53855e4a9/ffeacf8b37ff43669861aff939c80744
[2023-04-02 00:47:18,068 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-04-02 00:47:18,069 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2023-04-02 00:47:18,071 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-04-02 00:47:18,071 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-04-02 00:47:18,074 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-04-02 00:47:18,075 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 12:47:18" (1/1) ...
[2023-04-02 00:47:18,076 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46b8fa19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:18, skipping insertion in model container
[2023-04-02 00:47:18,076 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 12:47:18" (1/1) ...
[2023-04-02 00:47:18,081 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-04-02 00:47:18,099 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-04-02 00:47:18,253 WARN  L247   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c[2071,2084]
[2023-04-02 00:47:18,255 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-04-02 00:47:18,261 INFO  L203         MainTranslator]: Completed pre-run
[2023-04-02 00:47:18,282 WARN  L247   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c[2071,2084]
[2023-04-02 00:47:18,282 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-04-02 00:47:18,292 INFO  L208         MainTranslator]: Completed translation
[2023-04-02 00:47:18,292 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:18 WrapperNode
[2023-04-02 00:47:18,292 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-04-02 00:47:18,293 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-04-02 00:47:18,293 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-04-02 00:47:18,293 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-04-02 00:47:18,301 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:18" (1/1) ...
[2023-04-02 00:47:18,301 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:18" (1/1) ...
[2023-04-02 00:47:18,306 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:18" (1/1) ...
[2023-04-02 00:47:18,306 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:18" (1/1) ...
[2023-04-02 00:47:18,319 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:18" (1/1) ...
[2023-04-02 00:47:18,322 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:18" (1/1) ...
[2023-04-02 00:47:18,323 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:18" (1/1) ...
[2023-04-02 00:47:18,324 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:18" (1/1) ...
[2023-04-02 00:47:18,325 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-04-02 00:47:18,326 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-04-02 00:47:18,326 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-04-02 00:47:18,326 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-04-02 00:47:18,327 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:18" (1/1) ...
[2023-04-02 00:47:18,330 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-04-02 00:47:18,338 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-02 00:47:18,348 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-04-02 00:47:18,357 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-04-02 00:47:18,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2023-04-02 00:47:18,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-04-02 00:47:18,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2023-04-02 00:47:18,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf
[2023-04-02 00:47:18,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure __signbit_float
[2023-04-02 00:47:18,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2023-04-02 00:47:18,390 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2023-04-02 00:47:18,390 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2023-04-02 00:47:18,391 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2023-04-02 00:47:18,391 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-04-02 00:47:18,391 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float
[2023-04-02 00:47:18,391 INFO  L130     BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf
[2023-04-02 00:47:18,391 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-04-02 00:47:18,391 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real
[2023-04-02 00:47:18,391 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-04-02 00:47:18,391 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-04-02 00:47:18,391 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-04-02 00:47:18,391 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real
[2023-04-02 00:47:18,392 INFO  L130     BoogieDeclarations]: Found specification of procedure __signbit_float
[2023-04-02 00:47:18,392 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2023-04-02 00:47:18,392 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2023-04-02 00:47:18,392 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-04-02 00:47:18,392 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-04-02 00:47:18,472 INFO  L236             CfgBuilder]: Building ICFG
[2023-04-02 00:47:18,473 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-04-02 00:47:18,760 INFO  L277             CfgBuilder]: Performing block encoding
[2023-04-02 00:47:18,764 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-04-02 00:47:18,765 INFO  L302             CfgBuilder]: Removed 8 assume(true) statements.
[2023-04-02 00:47:18,766 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 12:47:18 BoogieIcfgContainer
[2023-04-02 00:47:18,766 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-04-02 00:47:18,768 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-04-02 00:47:18,768 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-04-02 00:47:18,770 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-04-02 00:47:18,770 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 12:47:18" (1/3) ...
[2023-04-02 00:47:18,771 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395c66b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 12:47:18, skipping insertion in model container
[2023-04-02 00:47:18,771 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:18" (2/3) ...
[2023-04-02 00:47:18,771 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395c66b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 12:47:18, skipping insertion in model container
[2023-04-02 00:47:18,771 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 12:47:18" (3/3) ...
[2023-04-02 00:47:18,772 INFO  L112   eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c.c
[2023-04-02 00:47:18,784 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-04-02 00:47:18,785 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-04-02 00:47:18,817 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-04-02 00:47:18,822 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6bd3de99, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-04-02 00:47:18,822 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-04-02 00:47:18,825 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 55 states, 45 states have (on average 1.5777777777777777) internal successors, (71), 46 states have internal predecessors, (71), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2023-04-02 00:47:18,830 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2023-04-02 00:47:18,830 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-02 00:47:18,831 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-02 00:47:18,832 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-02 00:47:18,835 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-02 00:47:18,835 INFO  L85        PathProgramCache]: Analyzing trace with hash -671441924, now seen corresponding path program 1 times
[2023-04-02 00:47:18,841 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-02 00:47:18,842 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485669663]
[2023-04-02 00:47:18,842 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-02 00:47:18,842 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-02 00:47:18,907 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-02 00:47:18,986 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-02 00:47:18,989 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-02 00:47:19,003 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2023-04-02 00:47:19,006 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-02 00:47:19,015 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-02 00:47:19,015 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-02 00:47:19,015 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485669663]
[2023-04-02 00:47:19,016 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485669663] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-02 00:47:19,016 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-02 00:47:19,016 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-04-02 00:47:19,017 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609162292]
[2023-04-02 00:47:19,018 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-02 00:47:19,021 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-04-02 00:47:19,021 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-02 00:47:19,040 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-04-02 00:47:19,040 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-04-02 00:47:19,042 INFO  L87              Difference]: Start difference. First operand  has 55 states, 45 states have (on average 1.5777777777777777) internal successors, (71), 46 states have internal predecessors, (71), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand  has 4 states, 4 states have (on average 3.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2023-04-02 00:47:19,246 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-02 00:47:19,246 INFO  L93              Difference]: Finished difference Result 102 states and 151 transitions.
[2023-04-02 00:47:19,247 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-04-02 00:47:19,248 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 3.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17
[2023-04-02 00:47:19,248 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-02 00:47:19,253 INFO  L225             Difference]: With dead ends: 102
[2023-04-02 00:47:19,253 INFO  L226             Difference]: Without dead ends: 51
[2023-04-02 00:47:19,256 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-04-02 00:47:19,260 INFO  L413           NwaCegarLoop]: 5 mSDtfsCounter, 64 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-04-02 00:47:19,262 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 7 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-04-02 00:47:19,275 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 51 states.
[2023-04-02 00:47:19,297 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51.
[2023-04-02 00:47:19,298 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 51 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-04-02 00:47:19,300 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 65 transitions.
[2023-04-02 00:47:19,302 INFO  L78                 Accepts]: Start accepts. Automaton has 51 states and 65 transitions. Word has length 17
[2023-04-02 00:47:19,302 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-02 00:47:19,303 INFO  L495      AbstractCegarLoop]: Abstraction has 51 states and 65 transitions.
[2023-04-02 00:47:19,303 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 3.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2023-04-02 00:47:19,304 INFO  L276                IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions.
[2023-04-02 00:47:19,305 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2023-04-02 00:47:19,305 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-02 00:47:19,305 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-02 00:47:19,305 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-04-02 00:47:19,306 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-02 00:47:19,306 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-02 00:47:19,306 INFO  L85        PathProgramCache]: Analyzing trace with hash 599837444, now seen corresponding path program 1 times
[2023-04-02 00:47:19,306 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-02 00:47:19,306 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568226355]
[2023-04-02 00:47:19,306 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-02 00:47:19,307 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-02 00:47:19,341 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-04-02 00:47:19,341 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-04-02 00:47:19,362 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-04-02 00:47:19,395 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-04-02 00:47:19,396 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-04-02 00:47:19,397 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-04-02 00:47:19,398 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-04-02 00:47:19,401 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2023-04-02 00:47:19,404 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2023-04-02 00:47:19,427 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 12:47:19 BoogieIcfgContainer
[2023-04-02 00:47:19,427 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-04-02 00:47:19,428 INFO  L158              Benchmark]: Toolchain (without parser) took 1359.74ms. Allocated memory is still 316.7MB. Free memory was 259.4MB in the beginning and 254.7MB in the end (delta: 4.7MB). Peak memory consumption was 5.6MB. Max. memory is 8.0GB.
[2023-04-02 00:47:19,429 INFO  L158              Benchmark]: CDTParser took 0.14ms. Allocated memory is still 185.6MB. Free memory is still 135.6MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-04-02 00:47:19,430 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 221.00ms. Allocated memory is still 316.7MB. Free memory was 259.4MB in the beginning and 247.8MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
[2023-04-02 00:47:19,432 INFO  L158              Benchmark]: Boogie Preprocessor took 32.67ms. Allocated memory is still 316.7MB. Free memory was 247.8MB in the beginning and 246.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2023-04-02 00:47:19,432 INFO  L158              Benchmark]: RCFGBuilder took 440.41ms. Allocated memory is still 316.7MB. Free memory was 246.0MB in the beginning and 229.6MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB.
[2023-04-02 00:47:19,434 INFO  L158              Benchmark]: TraceAbstraction took 660.02ms. Allocated memory is still 316.7MB. Free memory was 228.9MB in the beginning and 254.7MB in the end (delta: -25.8MB). There was no memory consumed. Max. memory is 8.0GB.
[2023-04-02 00:47:19,440 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.14ms. Allocated memory is still 185.6MB. Free memory is still 135.6MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 221.00ms. Allocated memory is still 316.7MB. Free memory was 259.4MB in the beginning and 247.8MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 32.67ms. Allocated memory is still 316.7MB. Free memory was 247.8MB in the beginning and 246.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * RCFGBuilder took 440.41ms. Allocated memory is still 316.7MB. Free memory was 246.0MB in the beginning and 229.6MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB.
 * TraceAbstraction took 660.02ms. Allocated memory is still 316.7MB. Free memory was 228.9MB in the beginning and 254.7MB in the end (delta: -25.8MB). There was no memory consumed. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - UnprovableResult [Line: 108]: Unable to prove that call to reach_error is unreachable
    Unable to prove that call to reach_error is unreachable
 Reason: overapproximation of someBinaryFLOATComparisonOperation at line 107, overapproximation of someUnaryFLOAToperation at line 103, overapproximation of someBinaryArithmeticFLOAToperation at line 29. 
Possible FailurePath: 
[L14]               static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30;
        VAL         [\old(one_sqrt)=2147483650, \old(tiny_sqrt)=2147483649, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000]
[L103]              float x = -0.0f;
        VAL         [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000]
[L104]  CALL, EXPR  __ieee754_sqrtf(x)
        VAL         [\old(x)=2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000]
[L17]               float z;
[L18]               __uint32_t r, hx;
[L19]               __int32_t ix, s, q, m, t, i;
        VAL         [\old(x)=2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2147483648]
[L22]               ieee_float_shape_type gf_u;
[L23]               gf_u.value = (x)
[L24]   EXPR        gf_u.word
[L24]               (ix) = gf_u.word
[L26]               hx = ix & 0x7fffffff
        VAL         [\old(x)=2147483648, hx=2147483647, ix=2147483647, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2147483648]
[L28]   COND TRUE   !((hx) < 0x7f800000L)
[L29]               return x * x + x;
        VAL         [\old(x)=2147483648, hx=2147483647, ix=2147483647, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2147483648]
[L104]  RET, EXPR   __ieee754_sqrtf(x)
        VAL         [__ieee754_sqrtf(x)=2147483651, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2147483648]
[L104]              float res = __ieee754_sqrtf(x);
[L107]  EXPR        res == -0.0f && __signbit_float(res) == 1
        VAL         [one_sqrt=1, res == -0.0f && __signbit_float(res) == 1=0, res=2147483651, tiny_sqrt=1/1000000000000000000000000000000, x=2147483648]
[L107]  COND TRUE   !(res == -0.0f && __signbit_float(res) == 1)
[L108]              reach_error()
        VAL         [one_sqrt=1, res=2147483651, tiny_sqrt=1/1000000000000000000000000000000, x=2147483648]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 6 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 5 mSDtfsCounter, 127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2023-04-02 00:47:19,456 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...