/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0220b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:43:40,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:43:40,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:43:40,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:43:40,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:43:40,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:43:40,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:43:40,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:43:40,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:43:40,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:43:40,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:43:40,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:43:40,187 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:43:40,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:43:40,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:43:40,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:43:40,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:43:40,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:43:40,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:43:40,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:43:40,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:43:40,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:43:40,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:43:40,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:43:40,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:43:40,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:43:40,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:43:40,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:43:40,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:43:40,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:43:40,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:43:40,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:43:40,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:43:40,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:43:40,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:43:40,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:43:40,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:43:40,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:43:40,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:43:40,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:43:40,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:43:40,221 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 19:43:40,249 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:43:40,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:43:40,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:43:40,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:43:40,252 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:43:40,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:43:40,253 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:43:40,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:43:40,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:43:40,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:43:40,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:43:40,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:43:40,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:43:40,255 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:43:40,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:43:40,255 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:43:40,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:43:40,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:43:40,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:43:40,256 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:43:40,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:43:40,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:43:40,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:43:40,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:43:40,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:43:40,258 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:43:40,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:43:40,259 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:43:40,259 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:43:40,259 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:43:40,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:43:40,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:43:40,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:43:40,683 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:43:40,684 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:43:40,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0220b.c [2020-10-27 19:43:40,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/680e57048/c224ed89bef04dd68c3691c8bf5ec2be/FLAGec627eeca [2020-10-27 19:43:41,456 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:43:41,457 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_0220b.c [2020-10-27 19:43:41,484 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/680e57048/c224ed89bef04dd68c3691c8bf5ec2be/FLAGec627eeca [2020-10-27 19:43:41,771 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/680e57048/c224ed89bef04dd68c3691c8bf5ec2be [2020-10-27 19:43:41,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:43:41,781 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:43:41,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:41,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:43:41,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:43:41,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:41" (1/1) ... [2020-10-27 19:43:41,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27108a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:41, skipping insertion in model container [2020-10-27 19:43:41,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:41" (1/1) ... [2020-10-27 19:43:41,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:43:41,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:43:42,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:42,353 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:43:42,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:42,558 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:43:42,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:42 WrapperNode [2020-10-27 19:43:42,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:42,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:43:42,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:43:42,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:43:42,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:42" (1/1) ... [2020-10-27 19:43:42,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:42" (1/1) ... [2020-10-27 19:43:42,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:42" (1/1) ... [2020-10-27 19:43:42,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:42" (1/1) ... [2020-10-27 19:43:42,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:42" (1/1) ... [2020-10-27 19:43:42,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:42" (1/1) ... [2020-10-27 19:43:42,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:42" (1/1) ... [2020-10-27 19:43:42,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:43:42,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:43:42,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:43:42,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:43:42,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:42" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-27 19:43:42,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:43:42,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:43:42,898 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:43:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2020-10-27 19:43:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-10-27 19:43:42,900 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2020-10-27 19:43:42,901 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2020-10-27 19:43:42,901 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-10-27 19:43:42,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2f [2020-10-27 19:43:42,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2f [2020-10-27 19:43:42,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sinf [2020-10-27 19:43:42,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cosf [2020-10-27 19:43:42,902 INFO L138 BoogieDeclarations]: Found implementation of procedure sin_float [2020-10-27 19:43:42,902 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:43:42,903 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:43:42,905 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:43:42,906 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:43:42,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:43:42,906 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2020-10-27 19:43:42,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:43:42,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:43:42,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:43:42,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:43:42,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:43:42,907 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-10-27 19:43:42,907 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2020-10-27 19:43:42,907 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2020-10-27 19:43:42,907 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-10-27 19:43:42,907 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2f [2020-10-27 19:43:42,908 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2f [2020-10-27 19:43:42,908 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sinf [2020-10-27 19:43:42,908 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cosf [2020-10-27 19:43:42,908 INFO L130 BoogieDeclarations]: Found specification of procedure sin_float [2020-10-27 19:43:42,908 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:43:42,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:43:42,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:43:42,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:43:42,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:43:44,847 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:43:44,848 INFO L298 CfgBuilder]: Removed 61 assume(true) statements. [2020-10-27 19:43:44,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:44 BoogieIcfgContainer [2020-10-27 19:43:44,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:43:44,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:43:44,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:43:44,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:43:44,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:43:41" (1/3) ... [2020-10-27 19:43:44,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264ba860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:44, skipping insertion in model container [2020-10-27 19:43:44,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:42" (2/3) ... [2020-10-27 19:43:44,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264ba860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:44, skipping insertion in model container [2020-10-27 19:43:44,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:44" (3/3) ... [2020-10-27 19:43:44,865 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0220b.c [2020-10-27 19:43:44,879 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:43:44,885 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:43:44,899 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:43:44,930 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:43:44,930 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:43:44,930 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:43:44,931 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:43:44,931 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:43:44,931 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:43:44,931 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:43:44,931 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:43:44,956 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-10-27 19:43:44,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 19:43:44,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:44,965 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:43:44,965 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:44,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:44,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1914146373, now seen corresponding path program 1 times [2020-10-27 19:43:44,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:44,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786936710] [2020-10-27 19:43:44,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:45,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:45,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:45,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 19:43:45,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:45,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461 [2020-10-27 19:43:45,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:45,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:45,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 19:43:45,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:45,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 19:43:46,182 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 19:43:46,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:46,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:46,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:46,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:46,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:46,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-27 19:43:46,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:46,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:46,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:46,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:46,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:46,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:46,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:46,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:46,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:46,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 19:43:46,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:46,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 19:43:46,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:46,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:46,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 19:43:46,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:46,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:46,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:43:46,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786936710] [2020-10-27 19:43:46,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:46,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:43:46,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454564826] [2020-10-27 19:43:46,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:43:46,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:46,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:43:46,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:43:46,474 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 4 states. [2020-10-27 19:43:46,731 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 19:43:48,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:48,708 INFO L93 Difference]: Finished difference Result 551 states and 887 transitions. [2020-10-27 19:43:48,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:43:48,710 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-27 19:43:48,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:48,740 INFO L225 Difference]: With dead ends: 551 [2020-10-27 19:43:48,740 INFO L226 Difference]: Without dead ends: 274 [2020-10-27 19:43:48,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:43:48,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-27 19:43:48,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-10-27 19:43:48,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-27 19:43:48,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 371 transitions. [2020-10-27 19:43:48,879 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 371 transitions. Word has length 19 [2020-10-27 19:43:48,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:48,880 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 371 transitions. [2020-10-27 19:43:48,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:43:48,880 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 371 transitions. [2020-10-27 19:43:48,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-27 19:43:48,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:48,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:43:48,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:43:48,883 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:48,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:48,884 INFO L82 PathProgramCache]: Analyzing trace with hash -110490788, now seen corresponding path program 1 times [2020-10-27 19:43:48,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:48,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967959949] [2020-10-27 19:43:48,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:43:49,002 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:43:49,003 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:43:49,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:43:49,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:43:49 BoogieIcfgContainer [2020-10-27 19:43:49,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:43:49,037 INFO L168 Benchmark]: Toolchain (without parser) took 7259.75 ms. Allocated memory was 163.6 MB in the beginning and 263.2 MB in the end (delta: 99.6 MB). Free memory was 137.1 MB in the beginning and 202.0 MB in the end (delta: -64.9 MB). Peak memory consumption was 36.2 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:49,038 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 163.6 MB. Free memory was 134.7 MB in the beginning and 134.6 MB in the end (delta: 98.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:43:49,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 775.34 ms. Allocated memory is still 163.6 MB. Free memory was 136.6 MB in the beginning and 142.9 MB in the end (delta: -6.3 MB). Peak memory consumption was 34.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:49,040 INFO L168 Benchmark]: Boogie Preprocessor took 239.79 ms. Allocated memory is still 163.6 MB. Free memory was 142.9 MB in the beginning and 135.4 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:49,041 INFO L168 Benchmark]: RCFGBuilder took 2046.82 ms. Allocated memory was 163.6 MB in the beginning and 198.2 MB in the end (delta: 34.6 MB). Free memory was 135.4 MB in the beginning and 91.4 MB in the end (delta: 44.0 MB). Peak memory consumption was 88.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:49,042 INFO L168 Benchmark]: TraceAbstraction took 4182.52 ms. Allocated memory was 198.2 MB in the beginning and 263.2 MB in the end (delta: 65.0 MB). Free memory was 91.4 MB in the beginning and 202.0 MB in the end (delta: -110.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:43:49,046 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 163.6 MB. Free memory was 134.7 MB in the beginning and 134.6 MB in the end (delta: 98.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 775.34 ms. Allocated memory is still 163.6 MB. Free memory was 136.6 MB in the beginning and 142.9 MB in the end (delta: -6.3 MB). Peak memory consumption was 34.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 239.79 ms. Allocated memory is still 163.6 MB. Free memory was 142.9 MB in the beginning and 135.4 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2046.82 ms. Allocated memory was 163.6 MB in the beginning and 198.2 MB in the end (delta: 34.6 MB). Free memory was 135.4 MB in the beginning and 91.4 MB in the end (delta: 44.0 MB). Peak memory consumption was 88.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4182.52 ms. Allocated memory was 198.2 MB in the beginning and 263.2 MB in the end (delta: 65.0 MB). Free memory was 91.4 MB in the beginning and 202.0 MB in the end (delta: -110.6 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 628, overapproximation of someUnaryDOUBLEoperation at line 507, overapproximation of bitwiseAnd at line 594, overapproximation of someUnaryFLOAToperation at line 624, overapproximation of someBinaryArithmeticFLOAToperation at line 599. Possible FailurePath: [L13] static const float huge_floor = 1.0e30; [L90-L92] static const float two25_scalbn = 3.355443200e+07, twom25_scalbn = 2.9802322388e-08, huge_scalbn = 1.0e+30, tiny_scalbn = 1.0e-30; [L165] static const int init_jk_krempio[] = {4, 7, 9}; [L167-L171] static const float PIo2_krempio[] = { 1.5703125000e+00, 4.5776367188e-04, 2.5987625122e-05, 7.5437128544e-08, 6.0026650317e-11, 7.3896444519e-13, 5.3845816694e-15, 5.6378512969e-18, 8.3009228831e-20, 3.2756352257e-22, 6.3331015649e-25, }; [L173-L175] static const float zero_krempio = 0.0, one_krempio = 1.0, two8_krempio = 2.5600000000e+02, twon8_krempio = 3.9062500000e-03; [L350-L368] static const __int32_t two_over_pi_rempio[] = { 0xA2, 0xF9, 0x83, 0x6E, 0x4E, 0x44, 0x15, 0x29, 0xFC, 0x27, 0x57, 0xD1, 0xF5, 0x34, 0xDD, 0xC0, 0xDB, 0x62, 0x95, 0x99, 0x3C, 0x43, 0x90, 0x41, 0xFE, 0x51, 0x63, 0xAB, 0xDE, 0xBB, 0xC5, 0x61, 0xB7, 0x24, 0x6E, 0x3A, 0x42, 0x4D, 0xD2, 0xE0, 0x06, 0x49, 0x2E, 0xEA, 0x09, 0xD1, 0x92, 0x1C, 0xFE, 0x1D, 0xEB, 0x1C, 0xB1, 0x29, 0xA7, 0x3E, 0xE8, 0x82, 0x35, 0xF5, 0x2E, 0xBB, 0x44, 0x84, 0xE9, 0x9C, 0x70, 0x26, 0xB4, 0x5F, 0x7E, 0x41, 0x39, 0x91, 0xD6, 0x39, 0x83, 0x53, 0x39, 0xF4, 0x9C, 0x84, 0x5F, 0x8B, 0xBD, 0xF9, 0x28, 0x3B, 0x1F, 0xF8, 0x97, 0xFF, 0xDE, 0x05, 0x98, 0x0F, 0xEF, 0x2F, 0x11, 0x8B, 0x5A, 0x0A, 0x6D, 0x1F, 0x6D, 0x36, 0x7E, 0xCF, 0x27, 0xCB, 0x09, 0xB7, 0x4F, 0x46, 0x3F, 0x66, 0x9E, 0x5F, 0xEA, 0x2D, 0x75, 0x27, 0xBA, 0xC7, 0xEB, 0xE5, 0xF1, 0x7B, 0x3D, 0x07, 0x39, 0xF7, 0x8A, 0x52, 0x92, 0xEA, 0x6B, 0xFB, 0x5F, 0xB1, 0x1F, 0x8D, 0x5D, 0x08, 0x56, 0x03, 0x30, 0x46, 0xFC, 0x7B, 0x6B, 0xAB, 0xF0, 0xCF, 0xBC, 0x20, 0x9A, 0xF4, 0x36, 0x1D, 0xA9, 0xE3, 0x91, 0x61, 0x5E, 0xE6, 0x1B, 0x08, 0x65, 0x99, 0x85, 0x5F, 0x14, 0xA0, 0x68, 0x40, 0x8D, 0xFF, 0xD8, 0x80, 0x4D, 0x73, 0x27, 0x31, 0x06, 0x06, 0x15, 0x56, 0xCA, 0x73, 0xA8, 0xC9, 0x60, 0xE2, 0x7B, 0xC0, 0x8C, 0x6B, }; [L370-L376] static const __int32_t npio2_hw_rempio[] = { 0x3fc90f00, 0x40490f00, 0x4096cb00, 0x40c90f00, 0x40fb5300, 0x4116cb00, 0x412fed00, 0x41490f00, 0x41623100, 0x417b5300, 0x418a3a00, 0x4196cb00, 0x41a35c00, 0x41afed00, 0x41bc7e00, 0x41c90f00, 0x41d5a000, 0x41e23100, 0x41eec200, 0x41fb5300, 0x4203f200, 0x420a3a00, 0x42108300, 0x4216cb00, 0x421d1400, 0x42235c00, 0x4229a500, 0x422fed00, 0x42363600, 0x423c7e00, 0x4242c700, 0x42490f00}; [L378-L387] static const float zero_rempio = 0.0000000000e+00, half_rempio = 5.0000000000e-01, two8_rempio = 2.5600000000e+02, invpio2_rempio = 6.3661980629e-01, pio2_1_rempio = 1.5707855225e+00, pio2_1t_rempio = 1.0804334124e-05, pio2_2_rempio = 1.0804273188e-05, pio2_2t_rempio = 6.0770999344e-11, pio2_3_rempio = 6.0770943833e-11, pio2_3t_rempio = 6.1232342629e-17; [L507-L510] static const float half_ksin = 5.0000000000e-01, S1_ksin = -1.6666667163e-01, S2_ksin = 8.3333337680e-03, S3_ksin = -1.9841270114e-04, S4_ksin = 2.7557314297e-06, S5_ksin = -2.5050759689e-08, S6_ksin = 1.5896910177e-10; [L534-L537] static const float one_kcos = 1.0000000000e+00, C1_kcos = 4.1666667908e-02, C2_kcos = -1.3888889225e-03, C3_kcos = 2.4801587642e-05, C4_kcos = -2.7557314297e-07, C5_kcos = 2.0875723372e-09, C6_kcos = -1.1359647598e-11; [L574-L582] static const float one_ktan = 1.0000000000e+00, pio4_ktan = 7.8539812565e-01, pio4lo_ktan = 3.7748947079e-08, T_ktan[] = { 3.3333334327e-01, 1.3333334029e-01, 5.3968254477e-02, 2.1869488060e-02, 8.8632395491e-03, 3.5920790397e-03, 1.4562094584e-03, 5.8804126456e-04, 2.4646313977e-04, 7.8179444245e-05, 7.1407252108e-05, -1.8558637748e-05, 2.5907305826e-05, }; [L624] float x = -0.0f; [L625] CALL, EXPR sin_float(x) [L585] float y[2], z = 0.0; [L586] __int32_t n, ix; [L589] ieee_float_shape_type gf_u; [L590] gf_u.value = (x) [L591] EXPR gf_u.word [L591] (ix) = gf_u.word [L594] ix &= 0x7fffffff [L595] COND FALSE !(ix <= 0x3f490fd8) [L598] COND TRUE !((ix) < 0x7f800000L) [L599] return x - x; [L599] return x - x; [L625] RET, EXPR sin_float(x) [L625] float res = sin_float(x); [L628] EXPR res == -0.0f && __signbit_float(res) == 1 [L628] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L629] CALL reach_error() [L3] __assert_fail("0", "float_req_bl_0220b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 281 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 364 SDtfs, 18 SDslu, 280 SDs, 0 SdLazy, 421 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 3510 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 Received shutdown request...