java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/float-benchs/sqrt_Householder_interval.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:04:34,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:04:34,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:04:34,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-11 16:04:34,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-11 16:04:34,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-11 16:04:34,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-11 16:04:34,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-11 16:04:34,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-11 16:04:34,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-11 16:04:34,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-11 16:04:34,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-11 16:04:34,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:04:34,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:04:34,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:04:34,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:04:34,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:04:34,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:04:34,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:04:34,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:04:34,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:04:34,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:04:34,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:04:34,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:04:34,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-11 16:04:34,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-11 16:04:34,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-11 16:04:34,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-11 16:04:34,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-11 16:04:34,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-11 16:04:34,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-11 16:04:34,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-11 16:04:34,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-11 16:04:34,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-11 16:04:34,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-11 16:04:34,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-11 16:04:34,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-11 16:04:34,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-11 16:04:34,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:04:34,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:04:34,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:04:34,596 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-11 16:04:34,629 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:04:34,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:04:34,630 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:04:34,630 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:04:34,631 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:04:34,631 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:04:34,631 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:04:34,632 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:04:34,632 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:04:34,632 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:04:34,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:04:34,633 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:04:34,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:04:34,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:04:34,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:04:34,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:04:34,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:04:34,634 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:04:34,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:04:34,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:04:34,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:04:34,635 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:04:34,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:04:34,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:04:34,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:04:34,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:04:34,636 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:04:34,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:04:34,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:04:34,637 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:04:34,672 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:04:34,689 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:04:34,693 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:04:34,695 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:04:34,695 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:04:34,696 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/sqrt_Householder_interval.c [2019-09-11 16:04:34,760 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f0709b2a/e9217ca3d00640b0930132c249f37bb0/FLAG1d367e0c9 [2019-09-11 16:04:35,198 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:04:35,199 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/sqrt_Householder_interval.c [2019-09-11 16:04:35,206 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f0709b2a/e9217ca3d00640b0930132c249f37bb0/FLAG1d367e0c9 [2019-09-11 16:04:35,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f0709b2a/e9217ca3d00640b0930132c249f37bb0 [2019-09-11 16:04:35,614 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:04:35,615 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:04:35,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:04:35,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:04:35,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:04:35,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:04:35" (1/1) ... [2019-09-11 16:04:35,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d38196f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:35, skipping insertion in model container [2019-09-11 16:04:35,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:04:35" (1/1) ... [2019-09-11 16:04:35,633 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:04:35,658 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:04:35,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:04:35,909 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:04:35,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:04:36,039 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:04:36,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:36 WrapperNode [2019-09-11 16:04:36,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:04:36,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:04:36,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:04:36,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:04:36,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:36" (1/1) ... [2019-09-11 16:04:36,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:36" (1/1) ... [2019-09-11 16:04:36,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:36" (1/1) ... [2019-09-11 16:04:36,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:36" (1/1) ... [2019-09-11 16:04:36,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:36" (1/1) ... [2019-09-11 16:04:36,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:36" (1/1) ... [2019-09-11 16:04:36,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:36" (1/1) ... [2019-09-11 16:04:36,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:04:36,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:04:36,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:04:36,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:04:36,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:04:36,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:04:36,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:04:36,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-11 16:04:36,129 INFO L138 BoogieDeclarations]: Found implementation of procedure SqrtR [2019-09-11 16:04:36,129 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:04:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:04:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-11 16:04:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-11 16:04:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-11 16:04:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure SqrtR [2019-09-11 16:04:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:04:36,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:04:36,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:04:36,391 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:04:36,391 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-11 16:04:36,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:04:36 BoogieIcfgContainer [2019-09-11 16:04:36,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:04:36,393 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:04:36,394 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:04:36,394 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:04:36,395 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:04:36" (1/1) ... [2019-09-11 16:04:36,426 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:04:36,522 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator COMPLT has no precise implementation. [2019-09-11 16:04:36,524 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator COMPGT has no precise implementation. [2019-09-11 16:04:36,748 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:04:36,772 INFO L272 AbstractInterpreter]: Visited 30 different actions 91 times. Merged at 11 different actions 38 times. Widened at 1 different actions 6 times. Performed 331 root evaluator evaluations with a maximum evaluation depth of 8. Performed 331 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 10 fixpoints after 3 different actions. Largest state had 13 variables. [2019-09-11 16:04:36,772 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:04:36,776 INFO L168 Benchmark]: Toolchain (without parser) took 1159.17 ms. Allocated memory was 142.6 MB in the beginning and 201.9 MB in the end (delta: 59.2 MB). Free memory was 90.1 MB in the beginning and 150.3 MB in the end (delta: -60.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:04:36,777 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 142.6 MB. Free memory was 108.8 MB in the beginning and 108.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:04:36,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 423.35 ms. Allocated memory was 142.6 MB in the beginning and 201.9 MB in the end (delta: 59.2 MB). Free memory was 89.9 MB in the beginning and 180.4 MB in the end (delta: -90.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-09-11 16:04:36,782 INFO L168 Benchmark]: Boogie Preprocessor took 32.75 ms. Allocated memory is still 201.9 MB. Free memory was 180.4 MB in the beginning and 178.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-09-11 16:04:36,783 INFO L168 Benchmark]: RCFGBuilder took 319.62 ms. Allocated memory is still 201.9 MB. Free memory was 178.3 MB in the beginning and 165.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2019-09-11 16:04:36,785 INFO L168 Benchmark]: Abstract Interpretation took 379.16 ms. Allocated memory is still 201.9 MB. Free memory was 165.2 MB in the beginning and 150.3 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2019-09-11 16:04:36,790 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 142.6 MB. Free memory was 108.8 MB in the beginning and 108.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 423.35 ms. Allocated memory was 142.6 MB in the beginning and 201.9 MB in the end (delta: 59.2 MB). Free memory was 89.9 MB in the beginning and 180.4 MB in the end (delta: -90.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.75 ms. Allocated memory is still 201.9 MB. Free memory was 180.4 MB in the beginning and 178.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 319.62 ms. Allocated memory is still 201.9 MB. Free memory was 178.3 MB in the beginning and 165.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 379.16 ms. Allocated memory is still 201.9 MB. Free memory was 165.2 MB in the beginning and 150.3 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 15]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: abstract domain could reach this error location. Possible FailurePath: [L17] double _EPS = 1e-6; [L44] double d, r; [L46] d = __VERIFIER_nondet_double() [L49] CALL, EXPR SqrtR(d) [L21] double xn, xnp1, residu, lsup, linf; [L22] int i, cond; [L23] COND TRUE Input <= 1.0 [L23] xn = 1.0 [L24] xnp1 = xn [L25] residu = 2.0*_EPS*(xn+xnp1) [L26] lsup = _EPS * (xn+xnp1) [L27] linf = -lsup [L28] cond = ((residu > lsup) || (residu < linf)) [L29] i = 0 [L30] COND FALSE !(\read(cond)) [L39] return 1.0 / xnp1; [L49] RET, EXPR SqrtR(d) [L49] r = SqrtR(d) [L51] CALL __VERIFIER_assert(r >= 0.3 && r <= 5.) [L15] COND TRUE !(cond) [L15] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...