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/cos_polynomial.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:03:31,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:03:31,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:03:31,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-11 16:03:31,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-11 16:03:31,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-11 16:03:31,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-11 16:03:31,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-11 16:03:31,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-11 16:03:31,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-11 16:03:31,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-11 16:03:31,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-11 16:03:31,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:03:31,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:03:31,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:03:31,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:03:31,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:03:31,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:03:31,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:03:31,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:03:31,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:03:31,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:03:31,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:03:31,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:03:31,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:03:31,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-11 16:03:31,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-11 16:03:31,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-11 16:03:31,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-11 16:03:31,117 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-11 16:03:31,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-11 16:03:31,118 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-11 16:03:31,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-11 16:03:31,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:03:31,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:03:31,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:03:31,121 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 16:03:31,135 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:03:31,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:03:31,136 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:03:31,136 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:03:31,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:03:31,137 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:03:31,137 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:03:31,137 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:03:31,137 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:03:31,138 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:03:31,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:03:31,138 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:03:31,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:03:31,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:03:31,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:03:31,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:03:31,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:03:31,140 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:03:31,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:03:31,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:03:31,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:03:31,140 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:03:31,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:03:31,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:03:31,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:03:31,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:03:31,141 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:03:31,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:03:31,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:03:31,142 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:03:31,170 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:03:31,180 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:03:31,184 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:03:31,185 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:03:31,185 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:03:31,186 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cos_polynomial.c [2019-09-11 16:03:31,244 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20308b5a7/51e948827819473c87a1f64fbe83eb71/FLAGdcb9c6919 [2019-09-11 16:03:31,660 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:03:31,660 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cos_polynomial.c [2019-09-11 16:03:31,667 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20308b5a7/51e948827819473c87a1f64fbe83eb71/FLAGdcb9c6919 [2019-09-11 16:03:32,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20308b5a7/51e948827819473c87a1f64fbe83eb71 [2019-09-11 16:03:32,102 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:03:32,103 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:03:32,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:03:32,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:03:32,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:03:32,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:03:32" (1/1) ... [2019-09-11 16:03:32,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@428dcc35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:32, skipping insertion in model container [2019-09-11 16:03:32,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:03:32" (1/1) ... [2019-09-11 16:03:32,121 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:03:32,143 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:03:32,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:03:32,334 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:03:32,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:03:32,384 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:03:32,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:32 WrapperNode [2019-09-11 16:03:32,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:03:32,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:03:32,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:03:32,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:03:32,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:32" (1/1) ... [2019-09-11 16:03:32,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:32" (1/1) ... [2019-09-11 16:03:32,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:32" (1/1) ... [2019-09-11 16:03:32,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:32" (1/1) ... [2019-09-11 16:03:32,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:32" (1/1) ... [2019-09-11 16:03:32,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:32" (1/1) ... [2019-09-11 16:03:32,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:32" (1/1) ... [2019-09-11 16:03:32,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:03:32,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:03:32,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:03:32,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:03:32,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:32" (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 16:03:32,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:03:32,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:03:32,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-11 16:03:32,563 INFO L138 BoogieDeclarations]: Found implementation of procedure mcos [2019-09-11 16:03:32,563 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:03:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:03:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-11 16:03:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-11 16:03:32,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-11 16:03:32,564 INFO L130 BoogieDeclarations]: Found specification of procedure mcos [2019-09-11 16:03:32,564 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:03:32,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:03:32,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:03:32,779 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:03:32,780 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-11 16:03:32,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:03:32 BoogieIcfgContainer [2019-09-11 16:03:32,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:03:32,783 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:03:32,783 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:03:32,783 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:03:32,786 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:03:32" (1/1) ... [2019-09-11 16:03:32,845 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:03:32,924 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator COMPLT has no precise implementation. [2019-09-11 16:03:32,925 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator COMPGT has no precise implementation. [2019-09-11 16:03:33,044 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:03:33,078 INFO L272 AbstractInterpreter]: Visited 31 different actions 36 times. Merged at 3 different actions 5 times. Never widened. Performed 65 root evaluator evaluations with a maximum evaluation depth of 11. Performed 65 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 3 fixpoints after 2 different actions. Largest state had 21 variables. [2019-09-11 16:03:33,078 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:03:33,092 INFO L168 Benchmark]: Toolchain (without parser) took 987.71 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 88.5 MB in the beginning and 153.5 MB in the end (delta: -65.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:03:33,093 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory is still 106.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:03:33,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.31 ms. Allocated memory is still 140.5 MB. Free memory was 88.0 MB in the beginning and 78.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-09-11 16:03:33,096 INFO L168 Benchmark]: Boogie Preprocessor took 130.06 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 78.4 MB in the beginning and 177.4 MB in the end (delta: -99.0 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2019-09-11 16:03:33,097 INFO L168 Benchmark]: RCFGBuilder took 266.54 ms. Allocated memory is still 200.3 MB. Free memory was 177.4 MB in the beginning and 164.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2019-09-11 16:03:33,099 INFO L168 Benchmark]: Abstract Interpretation took 306.60 ms. Allocated memory is still 200.3 MB. Free memory was 164.0 MB in the beginning and 153.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2019-09-11 16:03:33,104 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 140.5 MB. Free memory is still 106.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 278.31 ms. Allocated memory is still 140.5 MB. Free memory was 88.0 MB in the beginning and 78.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.06 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 78.4 MB in the beginning and 177.4 MB in the end (delta: -99.0 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 266.54 ms. Allocated memory is still 200.3 MB. Free memory was 177.4 MB in the beginning and 164.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 306.60 ms. Allocated memory is still 200.3 MB. Free memory was 164.0 MB in the beginning and 153.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 9]: 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: [L11] double C1 = 4.16666666666666019037e-02; [L12] double C2 = -1.38888888888741095749e-03; [L13] double C3 = 2.48015872894767294178e-05; [L14] double C4 = -2.75573143513906633035e-07; [L15] double C5 = 2.08757232129817482790e-09; [L16] double C6 = -1.13596475577881948265e-11; [L44] double a, r; [L46] a = __VERIFIER_nondet_double() [L49] CALL, EXPR mcos(a) [L20] double a, hz, z, r, qx, zr; [L21] z = x*x [L22] COND TRUE x < 0. [L22] x = -x [L23] hz = 0.5 * z [L24] r = z*(C1+z*(C2+z*(C3+z*(C4+z*(C5+z*C6))))) [L25] zr = z*r [L26] COND TRUE x < 0.3 [L27] return 1.-(hz-zr); [L49] RET, EXPR mcos(a) [L49] r = mcos(a) [L51] CALL __VERIFIER_assert(r >= 0. && r <= 1.1) [L9] COND TRUE !(cond) [L9] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...