/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_0320a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:43:51,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:43:51,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:43:51,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:43:51,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:43:51,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:43:51,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:43:51,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:43:51,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:43:51,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:43:51,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:43:51,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:43:51,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:43:51,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:43:51,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:43:51,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:43:51,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:43:51,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:43:51,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:43:51,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:43:51,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:43:51,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:43:51,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:43:51,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:43:51,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:43:51,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:43:51,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:43:51,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:43:51,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:43:51,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:43:51,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:43:51,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:43:51,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:43:51,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:43:51,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:43:51,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:43:51,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:43:51,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:43:51,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:43:51,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:43:51,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:43:51,236 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 19:43:51,294 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:43:51,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:43:51,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:43:51,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:43:51,296 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:43:51,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:43:51,297 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:43:51,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:43:51,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:43:51,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:43:51,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:43:51,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:43:51,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:43:51,298 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:43:51,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:43:51,299 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:43:51,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:43:51,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:43:51,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:43:51,300 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:43:51,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:43:51,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:43:51,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:43:51,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:43:51,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:43:51,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:43:51,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:43:51,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:43:51,302 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:43:51,302 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:43:51,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:43:51,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:43:51,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:43:51,727 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:43:51,728 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:43:51,729 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0320a.c [2020-10-27 19:43:51,817 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d3810262/4efc412f9b554652b509deec2f326d59/FLAGa4c35851c [2020-10-27 19:43:52,650 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:43:52,651 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_0320a.c [2020-10-27 19:43:52,669 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d3810262/4efc412f9b554652b509deec2f326d59/FLAGa4c35851c [2020-10-27 19:43:52,918 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d3810262/4efc412f9b554652b509deec2f326d59 [2020-10-27 19:43:52,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:43:52,929 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:43:52,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:52,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:43:52,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:43:52,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:52" (1/1) ... [2020-10-27 19:43:52,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af03550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:52, skipping insertion in model container [2020-10-27 19:43:52,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:52" (1/1) ... [2020-10-27 19:43:52,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:43:52,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:43:53,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:53,455 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:43:53,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:53,668 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:43:53,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:53 WrapperNode [2020-10-27 19:43:53,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:53,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:43:53,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:43:53,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:43:53,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:53" (1/1) ... [2020-10-27 19:43:53,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:53" (1/1) ... [2020-10-27 19:43:53,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:53" (1/1) ... [2020-10-27 19:43:53,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:53" (1/1) ... [2020-10-27 19:43:53,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:53" (1/1) ... [2020-10-27 19:43:53,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:53" (1/1) ... [2020-10-27 19:43:53,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:53" (1/1) ... [2020-10-27 19:43:53,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:43:53,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:43:53,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:43:53,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:43:53,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:53" (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 19:43:53,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:43:53,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:43:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:43:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2020-10-27 19:43:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-10-27 19:43:53,967 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2020-10-27 19:43:53,967 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2020-10-27 19:43:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-10-27 19:43:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2f [2020-10-27 19:43:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2f [2020-10-27 19:43:53,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sinf [2020-10-27 19:43:53,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cosf [2020-10-27 19:43:53,970 INFO L138 BoogieDeclarations]: Found implementation of procedure cos_float [2020-10-27 19:43:53,970 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:43:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:43:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:43:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:43:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:43:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-27 19:43:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2020-10-27 19:43:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:43:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:43:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:43:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:43:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:43:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-10-27 19:43:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2020-10-27 19:43:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2020-10-27 19:43:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-10-27 19:43:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2f [2020-10-27 19:43:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2f [2020-10-27 19:43:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sinf [2020-10-27 19:43:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cosf [2020-10-27 19:43:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure cos_float [2020-10-27 19:43:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:43:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:43:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:43:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:43:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:43:55,911 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:43:55,911 INFO L298 CfgBuilder]: Removed 59 assume(true) statements. [2020-10-27 19:43:55,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:55 BoogieIcfgContainer [2020-10-27 19:43:55,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:43:55,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:43:55,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:43:55,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:43:55,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:43:52" (1/3) ... [2020-10-27 19:43:55,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2a8720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:55, skipping insertion in model container [2020-10-27 19:43:55,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:53" (2/3) ... [2020-10-27 19:43:55,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2a8720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:55, skipping insertion in model container [2020-10-27 19:43:55,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:55" (3/3) ... [2020-10-27 19:43:55,925 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0320a.c [2020-10-27 19:43:55,938 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:43:55,944 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:43:55,959 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:43:55,990 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:43:55,991 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:43:55,991 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:43:55,991 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:43:55,991 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:43:55,991 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:43:55,991 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:43:55,992 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:43:56,017 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states. [2020-10-27 19:43:56,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-27 19:43:56,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:56,025 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:43:56,025 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:56,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:56,032 INFO L82 PathProgramCache]: Analyzing trace with hash 313277541, now seen corresponding path program 1 times [2020-10-27 19:43:56,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:56,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987973284] [2020-10-27 19:43:56,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:56,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:56,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:56,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 19:43:56,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:56,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 567 [2020-10-27 19:43:56,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:56,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:56,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 19:43:56,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:56,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:43:57,479 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 19:43:57,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:57,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:57,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:57,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:57,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:57,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-27 19:43:57,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:57,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:57,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:57,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:57,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:57,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:57,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:57,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:57,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 19:43:57,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:57,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 19:43:57,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:57,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:57,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 19:43:57,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:57,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:57,725 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 19:43:57,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987973284] [2020-10-27 19:43:57,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:57,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:43:57,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535773689] [2020-10-27 19:43:57,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:43:57,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:57,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:43:57,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:43:57,753 INFO L87 Difference]: Start difference. First operand 272 states. Second operand 4 states. [2020-10-27 19:43:58,142 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 19:43:59,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:59,254 INFO L93 Difference]: Finished difference Result 533 states and 862 transitions. [2020-10-27 19:43:59,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:43:59,256 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-27 19:43:59,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:59,272 INFO L225 Difference]: With dead ends: 533 [2020-10-27 19:43:59,272 INFO L226 Difference]: Without dead ends: 265 [2020-10-27 19:43:59,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:43:59,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-10-27 19:43:59,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2020-10-27 19:43:59,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-10-27 19:43:59,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 361 transitions. [2020-10-27 19:43:59,367 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 361 transitions. Word has length 18 [2020-10-27 19:43:59,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:59,368 INFO L481 AbstractCegarLoop]: Abstraction has 265 states and 361 transitions. [2020-10-27 19:43:59,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:43:59,368 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 361 transitions. [2020-10-27 19:43:59,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 19:43:59,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:59,369 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 19:43:59,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:43:59,370 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:59,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:59,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1155988783, now seen corresponding path program 1 times [2020-10-27 19:43:59,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:59,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839513358] [2020-10-27 19:43:59,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:43:59,473 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:43:59,474 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:43:59,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:43:59,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:43:59 BoogieIcfgContainer [2020-10-27 19:43:59,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:43:59,508 INFO L168 Benchmark]: Toolchain (without parser) took 6583.48 ms. Allocated memory was 151.0 MB in the beginning and 205.5 MB in the end (delta: 54.5 MB). Free memory was 125.2 MB in the beginning and 66.0 MB in the end (delta: 59.2 MB). Peak memory consumption was 114.2 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:59,508 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 151.0 MB. Free memory is still 124.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:43:59,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.86 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 127.2 MB in the end (delta: -2.7 MB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:59,510 INFO L168 Benchmark]: Boogie Preprocessor took 199.96 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 119.9 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:59,511 INFO L168 Benchmark]: RCFGBuilder took 2042.92 ms. Allocated memory is still 151.0 MB. Free memory was 119.9 MB in the beginning and 78.5 MB in the end (delta: 41.3 MB). Peak memory consumption was 78.6 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:59,512 INFO L168 Benchmark]: TraceAbstraction took 3589.01 ms. Allocated memory was 151.0 MB in the beginning and 205.5 MB in the end (delta: 54.5 MB). Free memory was 78.0 MB in the beginning and 66.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:59,516 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 151.0 MB. Free memory is still 124.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 738.86 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 127.2 MB in the end (delta: -2.7 MB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 199.96 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 119.9 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2042.92 ms. Allocated memory is still 151.0 MB. Free memory was 119.9 MB in the beginning and 78.5 MB in the end (delta: 41.3 MB). Peak memory consumption was 78.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3589.01 ms. Allocated memory was 151.0 MB in the beginning and 205.5 MB in the end (delta: 54.5 MB). Free memory was 78.0 MB in the beginning and 66.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 66.0 MB. 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 612, overapproximation of someUnaryDOUBLEoperation at line 500, overapproximation of bitwiseAnd at line 579, overapproximation of someBinaryArithmeticFLOAToperation at line 584. Possible FailurePath: [L18] static const float huge_floor = 1.0e30; [L86-L88] static const float two25_scalbn = 3.355443200e+07, twom25_scalbn = 2.9802322388e-08, huge_scalbn = 1.0e+30, tiny_scalbn = 1.0e-30; [L158] static const int init_jk_krempio[] = {4, 7, 9}; [L160-L164] 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, }; [L166-L168] static const float zero_krempio = 0.0, one_krempio = 1.0, two8_krempio = 2.5600000000e+02, twon8_krempio = 3.9062500000e-03; [L343-L361] 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, }; [L363-L369] 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}; [L371-L380] 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; [L500-L503] 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; [L527-L530] 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; [L567] static const float one_cos = 1.0; [L608] float x = 0.0f; [L609] CALL, EXPR cos_float(x) [L570] float y[2], z = 0.0; [L571] __int32_t n, ix; [L574] ieee_float_shape_type gf_u; [L575] gf_u.value = (x) [L576] EXPR gf_u.word [L576] (ix) = gf_u.word [L579] ix &= 0x7fffffff [L580] COND FALSE !(ix <= 0x3f490fd8) [L583] COND TRUE !((ix) < 0x7f800000L) [L584] return x - x; [L584] return x - x; [L609] RET, EXPR cos_float(x) [L609] float res = cos_float(x); [L612] COND TRUE res != 1.0f [L613] CALL reach_error() [L3] __assert_fail("0", "float_req_bl_0320a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 275 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 355 SDtfs, 16 SDslu, 272 SDs, 0 SdLazy, 412 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=272occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 3145 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...