/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_0220b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 14:27:21,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 14:27:21,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 14:27:21,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 14:27:21,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 14:27:21,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 14:27:21,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 14:27:21,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 14:27:21,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 14:27:21,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 14:27:21,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 14:27:21,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 14:27:21,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 14:27:21,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 14:27:21,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 14:27:21,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 14:27:21,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 14:27:21,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 14:27:21,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 14:27:21,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 14:27:21,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 14:27:21,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 14:27:21,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 14:27:21,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 14:27:21,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 14:27:21,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 14:27:21,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 14:27:21,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 14:27:21,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 14:27:21,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 14:27:21,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 14:27:21,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 14:27:21,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 14:27:21,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 14:27:21,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 14:27:21,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 14:27:21,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 14:27:21,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 14:27:21,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 14:27:21,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 14:27:21,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 14:27:21,400 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 14:27:21,442 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 14:27:21,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 14:27:21,447 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 14:27:21,447 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 14:27:21,447 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 14:27:21,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 14:27:21,448 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 14:27:21,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 14:27:21,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 14:27:21,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 14:27:21,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 14:27:21,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 14:27:21,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 14:27:21,450 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 14:27:21,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 14:27:21,450 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 14:27:21,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 14:27:21,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 14:27:21,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 14:27:21,451 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 14:27:21,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 14:27:21,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:27:21,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 14:27:21,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 14:27:21,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 14:27:21,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 14:27:21,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 14:27:21,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 14:27:21,453 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 14:27:21,453 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 14:27:21,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 14:27:21,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 14:27:21,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 14:27:21,922 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 14:27:21,922 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 14:27:21,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0220b.c [2020-10-28 14:27:22,019 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/204b7b959/4fb9ee2249ac482097b89f208abadb20/FLAG670a5746c [2020-10-28 14:27:22,671 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 14:27:22,672 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_0220b.c [2020-10-28 14:27:22,696 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/204b7b959/4fb9ee2249ac482097b89f208abadb20/FLAG670a5746c [2020-10-28 14:27:22,990 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/204b7b959/4fb9ee2249ac482097b89f208abadb20 [2020-10-28 14:27:22,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 14:27:23,005 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 14:27:23,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 14:27:23,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 14:27:23,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 14:27:23,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:27:22" (1/1) ... [2020-10-28 14:27:23,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53f14d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:23, skipping insertion in model container [2020-10-28 14:27:23,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:27:22" (1/1) ... [2020-10-28 14:27:23,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 14:27:23,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 14:27:23,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:27:23,593 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 14:27:23,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:27:23,780 INFO L208 MainTranslator]: Completed translation [2020-10-28 14:27:23,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:23 WrapperNode [2020-10-28 14:27:23,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 14:27:23,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 14:27:23,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 14:27:23,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 14:27:23,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:23" (1/1) ... [2020-10-28 14:27:23,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:23" (1/1) ... [2020-10-28 14:27:23,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:23" (1/1) ... [2020-10-28 14:27:23,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:23" (1/1) ... [2020-10-28 14:27:23,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:23" (1/1) ... [2020-10-28 14:27:23,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:23" (1/1) ... [2020-10-28 14:27:23,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:23" (1/1) ... [2020-10-28 14:27:23,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 14:27:23,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 14:27:23,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 14:27:23,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 14:27:23,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:23" (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 14:27:24,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 14:27:24,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 14:27:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 14:27:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2020-10-28 14:27:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-10-28 14:27:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2020-10-28 14:27:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2020-10-28 14:27:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-10-28 14:27:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2f [2020-10-28 14:27:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2f [2020-10-28 14:27:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sinf [2020-10-28 14:27:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cosf [2020-10-28 14:27:24,081 INFO L138 BoogieDeclarations]: Found implementation of procedure sin_float [2020-10-28 14:27:24,081 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 14:27:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 14:27:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 14:27:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 14:27:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 14:27:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2020-10-28 14:27:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-28 14:27:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 14:27:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 14:27:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 14:27:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-28 14:27:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-10-28 14:27:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2020-10-28 14:27:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2020-10-28 14:27:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-10-28 14:27:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2f [2020-10-28 14:27:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2f [2020-10-28 14:27:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sinf [2020-10-28 14:27:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cosf [2020-10-28 14:27:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure sin_float [2020-10-28 14:27:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 14:27:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 14:27:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 14:27:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-28 14:27:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 14:27:26,330 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 14:27:26,330 INFO L298 CfgBuilder]: Removed 61 assume(true) statements. [2020-10-28 14:27:26,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:27:26 BoogieIcfgContainer [2020-10-28 14:27:26,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 14:27:26,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 14:27:26,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 14:27:26,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 14:27:26,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:27:22" (1/3) ... [2020-10-28 14:27:26,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f0278af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:27:26, skipping insertion in model container [2020-10-28 14:27:26,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:23" (2/3) ... [2020-10-28 14:27:26,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f0278af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:27:26, skipping insertion in model container [2020-10-28 14:27:26,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:27:26" (3/3) ... [2020-10-28 14:27:26,342 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0220b.c [2020-10-28 14:27:26,354 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 14:27:26,360 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 14:27:26,374 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 14:27:26,404 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 14:27:26,404 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 14:27:26,404 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 14:27:26,405 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 14:27:26,405 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 14:27:26,405 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 14:27:26,405 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 14:27:26,405 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 14:27:26,430 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-10-28 14:27:26,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-28 14:27:26,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:27:26,437 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 14:27:26,437 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:27:26,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:27:26,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1914146373, now seen corresponding path program 1 times [2020-10-28 14:27:26,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:27:26,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [577668884] [2020-10-28 14:27:26,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:27:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:27:26,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:27,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:27:27,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 14:27:27,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:27:27,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-10-28 14:27:27,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:27:27,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:27:27,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:27:27,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 14:27:27,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:27:27,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 14:27:27,880 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 14:27:27,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:27:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:27:27,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:27,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:27:27,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:27:27,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:27:27,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-28 14:27:27,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:27:27,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:27:27,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:27:27,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:27:27,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:27:27,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:27:28,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:27:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:27:28,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:28,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:27:28,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 14:27:28,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:27:28,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 14:27:28,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:27:28,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:27:28,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:27:28,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 14:27:28,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:27:28,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:27:28,068 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 14:27:28,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [577668884] [2020-10-28 14:27:28,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:27:28,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 14:27:28,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248983584] [2020-10-28 14:27:28,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 14:27:28,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:27:28,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 14:27:28,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 14:27:28,097 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 4 states. [2020-10-28 14:27:28,564 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-28 14:27:30,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:27:30,510 INFO L93 Difference]: Finished difference Result 551 states and 887 transitions. [2020-10-28 14:27:30,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 14:27:30,516 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-28 14:27:30,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:27:30,542 INFO L225 Difference]: With dead ends: 551 [2020-10-28 14:27:30,542 INFO L226 Difference]: Without dead ends: 274 [2020-10-28 14:27:30,560 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 [2020-10-28 14:27:30,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-28 14:27:30,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-10-28 14:27:30,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-28 14:27:30,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 371 transitions. [2020-10-28 14:27:30,703 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 371 transitions. Word has length 19 [2020-10-28 14:27:30,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:27:30,704 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 371 transitions. [2020-10-28 14:27:30,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 14:27:30,705 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 371 transitions. [2020-10-28 14:27:30,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-28 14:27:30,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:27:30,708 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:27:30,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 14:27:30,716 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:27:30,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:27:30,717 INFO L82 PathProgramCache]: Analyzing trace with hash -110490788, now seen corresponding path program 1 times [2020-10-28 14:27:30,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:27:30,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109107505] [2020-10-28 14:27:30,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:27:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 14:27:30,871 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 14:27:30,871 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 14:27:30,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 14:27:30,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 02:27:30 BoogieIcfgContainer [2020-10-28 14:27:30,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 14:27:30,903 INFO L168 Benchmark]: Toolchain (without parser) took 7903.78 ms. Allocated memory was 162.5 MB in the beginning and 202.4 MB in the end (delta: 39.8 MB). Free memory was 135.7 MB in the beginning and 69.1 MB in the end (delta: 66.6 MB). Peak memory consumption was 106.9 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:30,904 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 162.5 MB. Free memory is still 136.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 14:27:30,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.42 ms. Allocated memory is still 162.5 MB. Free memory was 135.1 MB in the beginning and 106.6 MB in the end (delta: 28.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:30,905 INFO L168 Benchmark]: Boogie Preprocessor took 210.01 ms. Allocated memory is still 162.5 MB. Free memory was 106.6 MB in the beginning and 99.3 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:30,907 INFO L168 Benchmark]: RCFGBuilder took 2339.85 ms. Allocated memory was 162.5 MB in the beginning and 202.4 MB in the end (delta: 39.8 MB). Free memory was 99.3 MB in the beginning and 115.9 MB in the end (delta: -16.6 MB). Peak memory consumption was 48.0 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:30,907 INFO L168 Benchmark]: TraceAbstraction took 4566.34 ms. Allocated memory is still 202.4 MB. Free memory was 115.3 MB in the beginning and 69.1 MB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:30,911 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 162.5 MB. Free memory is still 136.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 770.42 ms. Allocated memory is still 162.5 MB. Free memory was 135.1 MB in the beginning and 106.6 MB in the end (delta: 28.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 210.01 ms. Allocated memory is still 162.5 MB. Free memory was 106.6 MB in the beginning and 99.3 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2339.85 ms. Allocated memory was 162.5 MB in the beginning and 202.4 MB in the end (delta: 39.8 MB). Free memory was 99.3 MB in the beginning and 115.9 MB in the end (delta: -16.6 MB). Peak memory consumption was 48.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4566.34 ms. Allocated memory is still 202.4 MB. Free memory was 115.3 MB in the beginning and 69.1 MB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 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 628, overapproximation of someUnaryDOUBLEoperation at line 507, overapproximation of bitwiseAnd at line 594, overapproximation of someUnaryFLOAToperation at line 624, overapproximation of someBinaryArithmeticFLOAToperation at line 599. Possible FailurePath: [L13] static const float huge_floor = 1.0e30; [L90-L92] static const float two25_scalbn = 3.355443200e+07, twom25_scalbn = 2.9802322388e-08, huge_scalbn = 1.0e+30, tiny_scalbn = 1.0e-30; [L165] static const int init_jk_krempio[] = {4, 7, 9}; [L167-L171] static const float PIo2_krempio[] = { 1.5703125000e+00, 4.5776367188e-04, 2.5987625122e-05, 7.5437128544e-08, 6.0026650317e-11, 7.3896444519e-13, 5.3845816694e-15, 5.6378512969e-18, 8.3009228831e-20, 3.2756352257e-22, 6.3331015649e-25, }; [L173-L175] static const float zero_krempio = 0.0, one_krempio = 1.0, two8_krempio = 2.5600000000e+02, twon8_krempio = 3.9062500000e-03; [L350-L368] static const __int32_t two_over_pi_rempio[] = { 0xA2, 0xF9, 0x83, 0x6E, 0x4E, 0x44, 0x15, 0x29, 0xFC, 0x27, 0x57, 0xD1, 0xF5, 0x34, 0xDD, 0xC0, 0xDB, 0x62, 0x95, 0x99, 0x3C, 0x43, 0x90, 0x41, 0xFE, 0x51, 0x63, 0xAB, 0xDE, 0xBB, 0xC5, 0x61, 0xB7, 0x24, 0x6E, 0x3A, 0x42, 0x4D, 0xD2, 0xE0, 0x06, 0x49, 0x2E, 0xEA, 0x09, 0xD1, 0x92, 0x1C, 0xFE, 0x1D, 0xEB, 0x1C, 0xB1, 0x29, 0xA7, 0x3E, 0xE8, 0x82, 0x35, 0xF5, 0x2E, 0xBB, 0x44, 0x84, 0xE9, 0x9C, 0x70, 0x26, 0xB4, 0x5F, 0x7E, 0x41, 0x39, 0x91, 0xD6, 0x39, 0x83, 0x53, 0x39, 0xF4, 0x9C, 0x84, 0x5F, 0x8B, 0xBD, 0xF9, 0x28, 0x3B, 0x1F, 0xF8, 0x97, 0xFF, 0xDE, 0x05, 0x98, 0x0F, 0xEF, 0x2F, 0x11, 0x8B, 0x5A, 0x0A, 0x6D, 0x1F, 0x6D, 0x36, 0x7E, 0xCF, 0x27, 0xCB, 0x09, 0xB7, 0x4F, 0x46, 0x3F, 0x66, 0x9E, 0x5F, 0xEA, 0x2D, 0x75, 0x27, 0xBA, 0xC7, 0xEB, 0xE5, 0xF1, 0x7B, 0x3D, 0x07, 0x39, 0xF7, 0x8A, 0x52, 0x92, 0xEA, 0x6B, 0xFB, 0x5F, 0xB1, 0x1F, 0x8D, 0x5D, 0x08, 0x56, 0x03, 0x30, 0x46, 0xFC, 0x7B, 0x6B, 0xAB, 0xF0, 0xCF, 0xBC, 0x20, 0x9A, 0xF4, 0x36, 0x1D, 0xA9, 0xE3, 0x91, 0x61, 0x5E, 0xE6, 0x1B, 0x08, 0x65, 0x99, 0x85, 0x5F, 0x14, 0xA0, 0x68, 0x40, 0x8D, 0xFF, 0xD8, 0x80, 0x4D, 0x73, 0x27, 0x31, 0x06, 0x06, 0x15, 0x56, 0xCA, 0x73, 0xA8, 0xC9, 0x60, 0xE2, 0x7B, 0xC0, 0x8C, 0x6B, }; [L370-L376] static const __int32_t npio2_hw_rempio[] = { 0x3fc90f00, 0x40490f00, 0x4096cb00, 0x40c90f00, 0x40fb5300, 0x4116cb00, 0x412fed00, 0x41490f00, 0x41623100, 0x417b5300, 0x418a3a00, 0x4196cb00, 0x41a35c00, 0x41afed00, 0x41bc7e00, 0x41c90f00, 0x41d5a000, 0x41e23100, 0x41eec200, 0x41fb5300, 0x4203f200, 0x420a3a00, 0x42108300, 0x4216cb00, 0x421d1400, 0x42235c00, 0x4229a500, 0x422fed00, 0x42363600, 0x423c7e00, 0x4242c700, 0x42490f00}; [L378-L387] static const float zero_rempio = 0.0000000000e+00, half_rempio = 5.0000000000e-01, two8_rempio = 2.5600000000e+02, invpio2_rempio = 6.3661980629e-01, pio2_1_rempio = 1.5707855225e+00, pio2_1t_rempio = 1.0804334124e-05, pio2_2_rempio = 1.0804273188e-05, pio2_2t_rempio = 6.0770999344e-11, pio2_3_rempio = 6.0770943833e-11, pio2_3t_rempio = 6.1232342629e-17; [L507-L510] static const float half_ksin = 5.0000000000e-01, S1_ksin = -1.6666667163e-01, S2_ksin = 8.3333337680e-03, S3_ksin = -1.9841270114e-04, S4_ksin = 2.7557314297e-06, S5_ksin = -2.5050759689e-08, S6_ksin = 1.5896910177e-10; [L534-L537] static const float one_kcos = 1.0000000000e+00, C1_kcos = 4.1666667908e-02, C2_kcos = -1.3888889225e-03, C3_kcos = 2.4801587642e-05, C4_kcos = -2.7557314297e-07, C5_kcos = 2.0875723372e-09, C6_kcos = -1.1359647598e-11; [L574-L582] static const float one_ktan = 1.0000000000e+00, pio4_ktan = 7.8539812565e-01, pio4lo_ktan = 3.7748947079e-08, T_ktan[] = { 3.3333334327e-01, 1.3333334029e-01, 5.3968254477e-02, 2.1869488060e-02, 8.8632395491e-03, 3.5920790397e-03, 1.4562094584e-03, 5.8804126456e-04, 2.4646313977e-04, 7.8179444245e-05, 7.1407252108e-05, -1.8558637748e-05, 2.5907305826e-05, }; [L624] float x = -0.0f; [L625] CALL, EXPR sin_float(x) [L585] float y[2], z = 0.0; [L586] __int32_t n, ix; [L589] ieee_float_shape_type gf_u; [L590] gf_u.value = (x) [L591] EXPR gf_u.word [L591] (ix) = gf_u.word [L594] ix &= 0x7fffffff [L595] COND FALSE !(ix <= 0x3f490fd8) [L598] COND TRUE !((ix) < 0x7f800000L) [L599] return x - x; [L599] return x - x; [L625] RET, EXPR sin_float(x) [L625] float res = sin_float(x); [L628] EXPR res == -0.0f && __signbit_float(res) == 1 [L628] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L629] CALL reach_error() [L3] __assert_fail("0", "float_req_bl_0220b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 281 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 364 SDtfs, 18 SDslu, 280 SDs, 0 SdLazy, 421 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s 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=281occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 3510 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...