/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_0320b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:07:51,587 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:07:51,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:07:51,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:07:51,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:07:51,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:07:51,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:07:51,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:07:51,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:07:51,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:07:51,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:07:51,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:07:51,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:07:51,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:07:51,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:07:51,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:07:51,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:07:51,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:07:51,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:07:51,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:07:51,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:07:51,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:07:51,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:07:51,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:07:51,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:07:51,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:07:51,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:07:51,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:07:51,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:07:51,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:07:51,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:07:51,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:07:51,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:07:51,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:07:51,731 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:07:51,731 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:07:51,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:07:51,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:07:51,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:07:51,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:07:51,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:07:51,736 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 [2020-10-29 09:07:51,763 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:07:51,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:07:51,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:07:51,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:07:51,766 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:07:51,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:07:51,766 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:07:51,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:07:51,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:07:51,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:07:51,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:07:51,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:07:51,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:07:51,768 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:07:51,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:07:51,768 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:07:51,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:07:51,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:07:51,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:07:51,769 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:07:51,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:07:51,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:07:51,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:07:51,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:07:51,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:07:51,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:07:51,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:07:51,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:07:51,771 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:07:51,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:07:52,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:07:52,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:07:52,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:07:52,203 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:07:52,204 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:07:52,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0320b.c [2020-10-29 09:07:52,280 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/57e56588c/f6d86b8847734097997056a7c74b8023/FLAGccaf13fc6 [2020-10-29 09:07:52,953 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:07:52,954 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_0320b.c [2020-10-29 09:07:52,969 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/57e56588c/f6d86b8847734097997056a7c74b8023/FLAGccaf13fc6 [2020-10-29 09:07:53,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/57e56588c/f6d86b8847734097997056a7c74b8023 [2020-10-29 09:07:53,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:07:53,303 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:07:53,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:07:53,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:07:53,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:07:53,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:07:53" (1/1) ... [2020-10-29 09:07:53,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@723301f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:53, skipping insertion in model container [2020-10-29 09:07:53,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:07:53" (1/1) ... [2020-10-29 09:07:53,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:07:53,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:07:53,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:07:53,873 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:07:54,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:07:54,180 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:07:54,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:54 WrapperNode [2020-10-29 09:07:54,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:07:54,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:07:54,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:07:54,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:07:54,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:54" (1/1) ... [2020-10-29 09:07:54,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:54" (1/1) ... [2020-10-29 09:07:54,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:54" (1/1) ... [2020-10-29 09:07:54,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:54" (1/1) ... [2020-10-29 09:07:54,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:54" (1/1) ... [2020-10-29 09:07:54,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:54" (1/1) ... [2020-10-29 09:07:54,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:54" (1/1) ... [2020-10-29 09:07:54,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:07:54,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:07:54,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:07:54,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:07:54,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:54" (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 [2020-10-29 09:07:54,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:07:54,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:07:54,432 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:07:54,432 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2020-10-29 09:07:54,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-10-29 09:07:54,433 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2020-10-29 09:07:54,433 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2020-10-29 09:07:54,433 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-10-29 09:07:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2f [2020-10-29 09:07:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2f [2020-10-29 09:07:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sinf [2020-10-29 09:07:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cosf [2020-10-29 09:07:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure cos_float [2020-10-29 09:07:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:07:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:07:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:07:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:07:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:07:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-29 09:07:54,436 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2020-10-29 09:07:54,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-29 09:07:54,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:07:54,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:07:54,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:07:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-29 09:07:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-10-29 09:07:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2020-10-29 09:07:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2020-10-29 09:07:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-10-29 09:07:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2f [2020-10-29 09:07:54,438 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2f [2020-10-29 09:07:54,438 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sinf [2020-10-29 09:07:54,438 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cosf [2020-10-29 09:07:54,438 INFO L130 BoogieDeclarations]: Found specification of procedure cos_float [2020-10-29 09:07:54,438 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:07:54,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:07:54,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:07:54,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-29 09:07:54,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:07:55,897 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:07:55,897 INFO L298 CfgBuilder]: Removed 59 assume(true) statements. [2020-10-29 09:07:55,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:07:55 BoogieIcfgContainer [2020-10-29 09:07:55,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:07:55,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:07:55,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:07:55,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:07:55,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:07:53" (1/3) ... [2020-10-29 09:07:55,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114b102d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:07:55, skipping insertion in model container [2020-10-29 09:07:55,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:54" (2/3) ... [2020-10-29 09:07:55,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114b102d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:07:55, skipping insertion in model container [2020-10-29 09:07:55,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:07:55" (3/3) ... [2020-10-29 09:07:55,909 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0320b.c [2020-10-29 09:07:55,922 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:07:55,928 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:07:55,946 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:07:55,987 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:07:55,987 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:07:55,987 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:07:55,988 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:07:55,988 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:07:55,988 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:07:55,988 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:07:55,988 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:07:56,013 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states. [2020-10-29 09:07:56,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-29 09:07:56,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:07:56,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:07:56,021 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:07:56,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:07:56,028 INFO L82 PathProgramCache]: Analyzing trace with hash 313277541, now seen corresponding path program 1 times [2020-10-29 09:07:56,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:07:56,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404882508] [2020-10-29 09:07:56,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:07:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:07:56,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:56,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:07:56,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-29 09:07:56,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:07:56,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-10-29 09:07:56,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:07:56,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:07:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:07:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 09:07:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:07:56,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 09:07:57,104 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-29 09:07:57,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:07:57,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:07:57,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:57,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:07:57,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:07:57,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:07:57,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-29 09:07:57,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:07:57,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:07:57,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:07:57,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:07:57,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:07:57,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:07:57,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:07:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:07:57,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:57,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:07:57,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 09:07:57,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:07:57,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 09:07:57,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:07:57,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:07:57,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:07:57,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 09:07:57,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:07:57,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:07:57,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:07:57,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1404882508] [2020-10-29 09:07:57,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:07:57,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 09:07:57,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585454394] [2020-10-29 09:07:57,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 09:07:57,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:07:57,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 09:07:57,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 09:07:57,387 INFO L87 Difference]: Start difference. First operand 272 states. Second operand 4 states. [2020-10-29 09:07:57,649 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-29 09:07:58,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:07:58,833 INFO L93 Difference]: Finished difference Result 533 states and 862 transitions. [2020-10-29 09:07:58,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-29 09:07:58,835 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-29 09:07:58,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:07:58,851 INFO L225 Difference]: With dead ends: 533 [2020-10-29 09:07:58,851 INFO L226 Difference]: Without dead ends: 265 [2020-10-29 09:07:58,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 09:07:58,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-10-29 09:07:58,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2020-10-29 09:07:58,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-10-29 09:07:58,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 361 transitions. [2020-10-29 09:07:58,948 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 361 transitions. Word has length 18 [2020-10-29 09:07:58,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:07:58,948 INFO L481 AbstractCegarLoop]: Abstraction has 265 states and 361 transitions. [2020-10-29 09:07:58,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 09:07:58,949 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 361 transitions. [2020-10-29 09:07:58,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-29 09:07:58,950 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:07:58,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:07:58,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:07:58,950 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:07:58,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:07:58,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1155988783, now seen corresponding path program 1 times [2020-10-29 09:07:58,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:07:58,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106803456] [2020-10-29 09:07:58,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:07:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 09:07:59,047 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 09:07:59,048 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 09:07:59,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 09:07:59,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 09:07:59 BoogieIcfgContainer [2020-10-29 09:07:59,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 09:07:59,080 INFO L168 Benchmark]: Toolchain (without parser) took 5780.52 ms. Allocated memory was 125.8 MB in the beginning and 194.0 MB in the end (delta: 68.2 MB). Free memory was 99.7 MB in the beginning and 61.2 MB in the end (delta: 38.4 MB). Peak memory consumption was 106.8 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:59,081 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 125.8 MB. Free memory is still 87.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:07:59,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 876.14 ms. Allocated memory was 125.8 MB in the beginning and 161.5 MB in the end (delta: 35.7 MB). Free memory was 99.0 MB in the beginning and 140.5 MB in the end (delta: -41.5 MB). Peak memory consumption was 32.7 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:59,083 INFO L168 Benchmark]: Boogie Preprocessor took 151.19 ms. Allocated memory is still 161.5 MB. Free memory was 140.5 MB in the beginning and 133.3 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:59,084 INFO L168 Benchmark]: RCFGBuilder took 1565.83 ms. Allocated memory is still 161.5 MB. Free memory was 133.3 MB in the beginning and 120.8 MB in the end (delta: 12.5 MB). Peak memory consumption was 60.0 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:59,085 INFO L168 Benchmark]: TraceAbstraction took 3176.16 ms. Allocated memory was 161.5 MB in the beginning and 194.0 MB in the end (delta: 32.5 MB). Free memory was 120.3 MB in the beginning and 61.2 MB in the end (delta: 59.1 MB). Peak memory consumption was 91.6 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:59,089 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 125.8 MB. Free memory is still 87.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 876.14 ms. Allocated memory was 125.8 MB in the beginning and 161.5 MB in the end (delta: 35.7 MB). Free memory was 99.0 MB in the beginning and 140.5 MB in the end (delta: -41.5 MB). Peak memory consumption was 32.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 151.19 ms. Allocated memory is still 161.5 MB. Free memory was 140.5 MB in the beginning and 133.3 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1565.83 ms. Allocated memory is still 161.5 MB. Free memory was 133.3 MB in the beginning and 120.8 MB in the end (delta: 12.5 MB). Peak memory consumption was 60.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3176.16 ms. Allocated memory was 161.5 MB in the beginning and 194.0 MB in the end (delta: 32.5 MB). Free memory was 120.3 MB in the beginning and 61.2 MB in the end (delta: 59.1 MB). Peak memory consumption was 91.6 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 someUnaryFLOAToperation at line 608, 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_0320b.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: 3.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.4s, 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, 0.4s 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, 0.9s 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...