/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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 [2020-10-28 14:27:32,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 14:27:32,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 14:27:32,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 14:27:32,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 14:27:32,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 14:27:32,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 14:27:32,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 14:27:32,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 14:27:32,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 14:27:32,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 14:27:32,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 14:27:32,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 14:27:32,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 14:27:32,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 14:27:32,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 14:27:32,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 14:27:32,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 14:27:32,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 14:27:32,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 14:27:32,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 14:27:32,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 14:27:32,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 14:27:32,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 14:27:32,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 14:27:32,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 14:27:32,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 14:27:32,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 14:27:32,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 14:27:32,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 14:27:32,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 14:27:32,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 14:27:32,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 14:27:32,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 14:27:32,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 14:27:32,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 14:27:32,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 14:27:32,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 14:27:32,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 14:27:32,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 14:27:32,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 14:27:32,849 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 [2020-10-28 14:27:32,876 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 14:27:32,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 14:27:32,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 14:27:32,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 14:27:32,878 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 14:27:32,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 14:27:32,879 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 14:27:32,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 14:27:32,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 14:27:32,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 14:27:32,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 14:27:32,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 14:27:32,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 14:27:32,880 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 14:27:32,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 14:27:32,881 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 14:27:32,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 14:27:32,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 14:27:32,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 14:27:32,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 14:27:32,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 14:27:32,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:27:32,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 14:27:32,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 14:27:32,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 14:27:32,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 14:27:32,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 14:27:32,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 14:27:32,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 14:27:32,885 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 14:27:33,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 14:27:33,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 14:27:33,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 14:27:33,278 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 14:27:33,279 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 14:27:33,280 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0320b.c [2020-10-28 14:27:33,368 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a0ec0cba/a8a9a4a439c44550a7a5c53ce46050cc/FLAG793fb8e3e [2020-10-28 14:27:34,092 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 14:27:34,092 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_0320b.c [2020-10-28 14:27:34,115 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a0ec0cba/a8a9a4a439c44550a7a5c53ce46050cc/FLAG793fb8e3e [2020-10-28 14:27:34,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a0ec0cba/a8a9a4a439c44550a7a5c53ce46050cc [2020-10-28 14:27:34,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 14:27:34,339 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 14:27:34,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 14:27:34,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 14:27:34,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 14:27:34,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:27:34" (1/1) ... [2020-10-28 14:27:34,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe1183f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:34, skipping insertion in model container [2020-10-28 14:27:34,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:27:34" (1/1) ... [2020-10-28 14:27:34,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 14:27:34,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 14:27:34,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:27:34,930 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 14:27:35,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:27:35,125 INFO L208 MainTranslator]: Completed translation [2020-10-28 14:27:35,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:35 WrapperNode [2020-10-28 14:27:35,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 14:27:35,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 14:27:35,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 14:27:35,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 14:27:35,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:35" (1/1) ... [2020-10-28 14:27:35,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:35" (1/1) ... [2020-10-28 14:27:35,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:35" (1/1) ... [2020-10-28 14:27:35,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:35" (1/1) ... [2020-10-28 14:27:35,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:35" (1/1) ... [2020-10-28 14:27:35,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:35" (1/1) ... [2020-10-28 14:27:35,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:35" (1/1) ... [2020-10-28 14:27:35,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 14:27:35,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 14:27:35,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 14:27:35,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 14:27:35,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:35" (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 [2020-10-28 14:27:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 14:27:35,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 14:27:35,450 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 14:27:35,451 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2020-10-28 14:27:35,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-10-28 14:27:35,452 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2020-10-28 14:27:35,452 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2020-10-28 14:27:35,452 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-10-28 14:27:35,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2f [2020-10-28 14:27:35,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2f [2020-10-28 14:27:35,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sinf [2020-10-28 14:27:35,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cosf [2020-10-28 14:27:35,454 INFO L138 BoogieDeclarations]: Found implementation of procedure cos_float [2020-10-28 14:27:35,454 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 14:27:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 14:27:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 14:27:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 14:27:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 14:27:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-28 14:27:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2020-10-28 14:27:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-28 14:27:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 14:27:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 14:27:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 14:27:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-28 14:27:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-10-28 14:27:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2020-10-28 14:27:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2020-10-28 14:27:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-10-28 14:27:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2f [2020-10-28 14:27:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2f [2020-10-28 14:27:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sinf [2020-10-28 14:27:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cosf [2020-10-28 14:27:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure cos_float [2020-10-28 14:27:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 14:27:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 14:27:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 14:27:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-28 14:27:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 14:27:36,870 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 14:27:36,871 INFO L298 CfgBuilder]: Removed 59 assume(true) statements. [2020-10-28 14:27:36,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:27:36 BoogieIcfgContainer [2020-10-28 14:27:36,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 14:27:36,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 14:27:36,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 14:27:36,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 14:27:36,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:27:34" (1/3) ... [2020-10-28 14:27:36,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef2875b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:27:36, skipping insertion in model container [2020-10-28 14:27:36,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:35" (2/3) ... [2020-10-28 14:27:36,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef2875b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:27:36, skipping insertion in model container [2020-10-28 14:27:36,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:27:36" (3/3) ... [2020-10-28 14:27:36,882 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0320b.c [2020-10-28 14:27:36,894 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 14:27:36,899 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 14:27:36,913 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 14:27:36,941 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 14:27:36,942 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 14:27:36,942 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 14:27:36,942 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 14:27:36,942 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 14:27:36,942 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 14:27:36,942 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 14:27:36,943 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 14:27:36,966 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states. [2020-10-28 14:27:36,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-28 14:27:36,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:27:36,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:27:36,973 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:27:36,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:27:36,979 INFO L82 PathProgramCache]: Analyzing trace with hash 313277541, now seen corresponding path program 1 times [2020-10-28 14:27:36,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:27:36,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187799528] [2020-10-28 14:27:36,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:27:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:27:37,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:37,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:27:37,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-28 14:27:37,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:27:37,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 418 [2020-10-28 14:27:37,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:27:37,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:27:37,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:27:37,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 14:27:37,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:27:37,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 40 [2020-10-28 14:27:38,134 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-28 14:27:38,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:27:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:27:38,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:38,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:27:38,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:27:38,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:27:38,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-28 14:27:38,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:27:38,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:27:38,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:27:38,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:27:38,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:27:38,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:27:38,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:27:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:27:38,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:38,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:27:38,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 14:27:38,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:27:38,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 14:27:38,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:27:38,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:27:38,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:27:38,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 14:27:38,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:27:38,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:27:38,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 14:27:38,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187799528] [2020-10-28 14:27:38,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:27:38,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 14:27:38,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677631256] [2020-10-28 14:27:38,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 14:27:38,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:27:38,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 14:27:38,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 14:27:38,442 INFO L87 Difference]: Start difference. First operand 272 states. Second operand 4 states. [2020-10-28 14:27:38,753 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 14:27:39,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:27:39,907 INFO L93 Difference]: Finished difference Result 533 states and 862 transitions. [2020-10-28 14:27:39,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 14:27:39,909 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-28 14:27:39,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:27:39,925 INFO L225 Difference]: With dead ends: 533 [2020-10-28 14:27:39,925 INFO L226 Difference]: Without dead ends: 265 [2020-10-28 14:27:39,934 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 [2020-10-28 14:27:39,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-10-28 14:27:40,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2020-10-28 14:27:40,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-10-28 14:27:40,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 361 transitions. [2020-10-28 14:27:40,063 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 361 transitions. Word has length 18 [2020-10-28 14:27:40,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:27:40,064 INFO L481 AbstractCegarLoop]: Abstraction has 265 states and 361 transitions. [2020-10-28 14:27:40,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 14:27:40,064 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 361 transitions. [2020-10-28 14:27:40,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-28 14:27:40,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:27:40,065 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:27:40,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 14:27:40,066 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:27:40,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:27:40,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1155988783, now seen corresponding path program 1 times [2020-10-28 14:27:40,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:27:40,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27377824] [2020-10-28 14:27:40,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:27:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 14:27:40,154 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 14:27:40,154 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 14:27:40,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 14:27:40,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 02:27:40 BoogieIcfgContainer [2020-10-28 14:27:40,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 14:27:40,181 INFO L168 Benchmark]: Toolchain (without parser) took 5847.59 ms. Allocated memory was 152.0 MB in the beginning and 198.2 MB in the end (delta: 46.1 MB). Free memory was 125.6 MB in the beginning and 89.7 MB in the end (delta: 35.9 MB). Peak memory consumption was 83.2 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:40,182 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 152.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 14:27:40,183 INFO L168 Benchmark]: CACSL2BoogieTranslator took 784.53 ms. Allocated memory is still 152.0 MB. Free memory was 124.8 MB in the beginning and 130.9 MB in the end (delta: -6.1 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:40,184 INFO L168 Benchmark]: Boogie Preprocessor took 229.56 ms. Allocated memory is still 152.0 MB. Free memory was 130.9 MB in the beginning and 123.6 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:40,185 INFO L168 Benchmark]: RCFGBuilder took 1515.11 ms. Allocated memory was 152.0 MB in the beginning and 198.2 MB in the end (delta: 46.1 MB). Free memory was 123.6 MB in the beginning and 129.5 MB in the end (delta: -5.9 MB). Peak memory consumption was 80.6 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:40,186 INFO L168 Benchmark]: TraceAbstraction took 3304.12 ms. Allocated memory is still 198.2 MB. Free memory was 129.0 MB in the beginning and 89.7 MB in the end (delta: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:40,189 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 152.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 784.53 ms. Allocated memory is still 152.0 MB. Free memory was 124.8 MB in the beginning and 130.9 MB in the end (delta: -6.1 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 229.56 ms. Allocated memory is still 152.0 MB. Free memory was 130.9 MB in the beginning and 123.6 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1515.11 ms. Allocated memory was 152.0 MB in the beginning and 198.2 MB in the end (delta: 46.1 MB). Free memory was 123.6 MB in the beginning and 129.5 MB in the end (delta: -5.9 MB). Peak memory consumption was 80.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3304.12 ms. Allocated memory is still 198.2 MB. Free memory was 129.0 MB in the beginning and 89.7 MB in the end (delta: 39.2 MB). Peak memory consumption was 39.2 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: 3.2s, 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, 0.5s 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, 0.3s SatisfiabilityAnalysisTime, 1.0s 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...