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/floats-cdfpl/newton_2_4.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:02:09,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:02:09,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:02:09,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-11 16:02:09,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-11 16:02:09,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-11 16:02:09,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-11 16:02:09,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-11 16:02:09,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-11 16:02:09,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-11 16:02:09,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-11 16:02:09,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-11 16:02:09,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:02:09,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:02:09,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:02:09,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:02:09,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:02:09,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:02:09,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:02:09,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:02:09,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:02:09,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:02:09,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:02:09,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:02:09,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:02:09,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-11 16:02:09,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-11 16:02:09,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-11 16:02:09,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-11 16:02:09,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-11 16:02:09,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-11 16:02:09,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-11 16:02:09,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-11 16:02:09,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:02:09,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:02:09,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:02:09,298 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 16:02:09,312 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:02:09,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:02:09,313 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:02:09,313 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:02:09,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:02:09,314 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:02:09,314 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:02:09,315 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:02:09,315 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:02:09,315 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:02:09,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:02:09,316 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:02:09,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:02:09,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:02:09,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:02:09,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:02:09,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:02:09,317 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:02:09,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:02:09,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:02:09,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:02:09,318 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:02:09,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:02:09,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:02:09,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:02:09,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:02:09,319 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:02:09,319 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:02:09,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:02:09,320 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:02:09,347 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:02:09,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:02:09,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:02:09,366 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:02:09,367 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:02:09,367 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/newton_2_4.i [2019-09-11 16:02:09,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a293113cf/47d8e2447b57497db218da2e2cc6a7c5/FLAG06d31fd90 [2019-09-11 16:02:09,913 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:02:09,913 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/newton_2_4.i [2019-09-11 16:02:09,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a293113cf/47d8e2447b57497db218da2e2cc6a7c5/FLAG06d31fd90 [2019-09-11 16:02:10,285 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a293113cf/47d8e2447b57497db218da2e2cc6a7c5 [2019-09-11 16:02:10,293 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:02:10,294 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:02:10,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:02:10,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:02:10,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:02:10,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:02:10" (1/1) ... [2019-09-11 16:02:10,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3858adc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:02:10, skipping insertion in model container [2019-09-11 16:02:10,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:02:10" (1/1) ... [2019-09-11 16:02:10,314 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:02:10,330 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:02:10,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:02:10,495 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:02:10,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:02:10,626 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:02:10,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:02:10 WrapperNode [2019-09-11 16:02:10,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:02:10,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:02:10,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:02:10,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:02:10,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:02:10" (1/1) ... [2019-09-11 16:02:10,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:02:10" (1/1) ... [2019-09-11 16:02:10,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:02:10" (1/1) ... [2019-09-11 16:02:10,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:02:10" (1/1) ... [2019-09-11 16:02:10,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:02:10" (1/1) ... [2019-09-11 16:02:10,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:02:10" (1/1) ... [2019-09-11 16:02:10,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:02:10" (1/1) ... [2019-09-11 16:02:10,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:02:10,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:02:10,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:02:10,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:02:10,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:02:10" (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 16:02:10,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:02:10,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:02:10,721 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-09-11 16:02:10,721 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2019-09-11 16:02:10,722 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:02:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:02:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-11 16:02:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-09-11 16:02:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-09-11 16:02:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2019-09-11 16:02:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:02:10,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:02:10,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:02:10,915 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:02:10,916 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-11 16:02:10,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:02:10 BoogieIcfgContainer [2019-09-11 16:02:10,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:02:10,919 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:02:10,919 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:02:10,919 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:02:10,923 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:02:10" (1/1) ... [2019-09-11 16:02:10,951 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:02:11,021 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator COMPLT has no precise implementation. [2019-09-11 16:02:11,022 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator COMPGT has no precise implementation. [2019-09-11 16:02:11,090 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:02:11,113 INFO L272 AbstractInterpreter]: Visited 27 different actions 31 times. Never merged. Never widened. Performed 20 root evaluator evaluations with a maximum evaluation depth of 8. Performed 20 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 8 variables. [2019-09-11 16:02:11,113 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:02:11,116 INFO L168 Benchmark]: Toolchain (without parser) took 820.18 ms. Allocated memory was 140.5 MB in the beginning and 198.7 MB in the end (delta: 58.2 MB). Free memory was 88.8 MB in the beginning and 156.1 MB in the end (delta: -67.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:02:11,117 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 107.0 MB in the beginning and 106.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:02:11,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.32 ms. Allocated memory was 140.5 MB in the beginning and 198.7 MB in the end (delta: 58.2 MB). Free memory was 88.6 MB in the beginning and 177.4 MB in the end (delta: -88.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-09-11 16:02:11,119 INFO L168 Benchmark]: Boogie Preprocessor took 33.69 ms. Allocated memory is still 198.7 MB. Free memory was 177.4 MB in the beginning and 175.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-09-11 16:02:11,120 INFO L168 Benchmark]: RCFGBuilder took 256.70 ms. Allocated memory is still 198.7 MB. Free memory was 175.3 MB in the beginning and 164.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-09-11 16:02:11,121 INFO L168 Benchmark]: Abstract Interpretation took 194.58 ms. Allocated memory is still 198.7 MB. Free memory was 164.3 MB in the beginning and 156.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. [2019-09-11 16:02:11,125 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 107.0 MB in the beginning and 106.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 331.32 ms. Allocated memory was 140.5 MB in the beginning and 198.7 MB in the end (delta: 58.2 MB). Free memory was 88.6 MB in the beginning and 177.4 MB in the end (delta: -88.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.69 ms. Allocated memory is still 198.7 MB. Free memory was 177.4 MB in the beginning and 175.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 256.70 ms. Allocated memory is still 198.7 MB. Free memory was 175.3 MB in the beginning and 164.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 194.58 ms. Allocated memory is still 198.7 MB. Free memory was 164.3 MB in the beginning and 156.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 28]: 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: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L19] RET, EXPR f(IN) [L19] CALL, EXPR fp(IN) [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] RET, EXPR fp(IN) [L19] float x = IN - f(IN)/fp(IN); [L21] CALL, EXPR f(x) [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L21] RET, EXPR f(x) [L21] CALL, EXPR fp(x) [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L21] RET, EXPR fp(x) [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...