/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=SHALLOWEST --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 [2020-10-27 01:02:57,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:02:57,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:02:57,810 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:02:57,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:02:57,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:02:57,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:02:57,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:02:57,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:02:57,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:02:57,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:02:57,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:02:57,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:02:57,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:02:57,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:02:57,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:02:57,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:02:57,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:02:57,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:02:57,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:02:57,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:02:57,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:02:57,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:02:57,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:02:57,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:02:57,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:02:57,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:02:57,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:02:57,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:02:57,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:02:57,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:02:57,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:02:57,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:02:57,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:02:57,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:02:57,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:02:57,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:02:57,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:02:57,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:02:57,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:02:57,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:02:57,888 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 01:02:57,916 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:02:57,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:02:57,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:02:57,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:02:57,919 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:02:57,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:02:57,919 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:02:57,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:02:57,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:02:57,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:02:57,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:02:57,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:02:57,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:02:57,921 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:02:57,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:02:57,921 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:02:57,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:02:57,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:02:57,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:02:57,922 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:02:57,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:02:57,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:02:57,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:02:57,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:02:57,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:02:57,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:02:57,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:02:57,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:02:57,924 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:02:57,924 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:02:58,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:02:58,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:02:58,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:02:58,387 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:02:58,388 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:02:58,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0320b.c [2020-10-27 01:02:58,479 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/78626cc67/ccf9ce11e93340b58620a122084ac7ba/FLAGb6de46ca1 [2020-10-27 01:02:59,252 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:02:59,253 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_0320b.c [2020-10-27 01:02:59,266 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/78626cc67/ccf9ce11e93340b58620a122084ac7ba/FLAGb6de46ca1 [2020-10-27 01:02:59,517 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/78626cc67/ccf9ce11e93340b58620a122084ac7ba [2020-10-27 01:02:59,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:02:59,537 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:02:59,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:02:59,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:02:59,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:02:59,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:02:59" (1/1) ... [2020-10-27 01:02:59,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b603a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:59, skipping insertion in model container [2020-10-27 01:02:59,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:02:59" (1/1) ... [2020-10-27 01:02:59,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:02:59,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:03:00,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:03:00,059 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:03:00,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:03:00,274 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:03:00,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:00 WrapperNode [2020-10-27 01:03:00,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:03:00,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:03:00,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:03:00,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:03:00,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:00" (1/1) ... [2020-10-27 01:03:00,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:00" (1/1) ... [2020-10-27 01:03:00,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:00" (1/1) ... [2020-10-27 01:03:00,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:00" (1/1) ... [2020-10-27 01:03:00,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:00" (1/1) ... [2020-10-27 01:03:00,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:00" (1/1) ... [2020-10-27 01:03:00,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:00" (1/1) ... [2020-10-27 01:03:00,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:03:00,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:03:00,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:03:00,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:03:00,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:00" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:03:00,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:03:00,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:03:00,599 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:03:00,600 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2020-10-27 01:03:00,600 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-10-27 01:03:00,601 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2020-10-27 01:03:00,601 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2020-10-27 01:03:00,601 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-10-27 01:03:00,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2f [2020-10-27 01:03:00,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2f [2020-10-27 01:03:00,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sinf [2020-10-27 01:03:00,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cosf [2020-10-27 01:03:00,604 INFO L138 BoogieDeclarations]: Found implementation of procedure cos_float [2020-10-27 01:03:00,604 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:03:00,604 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:03:00,605 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:03:00,605 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:03:00,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:03:00,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-27 01:03:00,606 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2020-10-27 01:03:00,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 01:03:00,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:03:00,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:03:00,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:03:00,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 01:03:00,607 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-10-27 01:03:00,607 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2020-10-27 01:03:00,607 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2020-10-27 01:03:00,607 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-10-27 01:03:00,607 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2f [2020-10-27 01:03:00,607 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2f [2020-10-27 01:03:00,608 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sinf [2020-10-27 01:03:00,608 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cosf [2020-10-27 01:03:00,608 INFO L130 BoogieDeclarations]: Found specification of procedure cos_float [2020-10-27 01:03:00,608 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:03:00,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:03:00,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:03:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 01:03:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:03:02,380 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:03:02,380 INFO L298 CfgBuilder]: Removed 59 assume(true) statements. [2020-10-27 01:03:02,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:03:02 BoogieIcfgContainer [2020-10-27 01:03:02,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:03:02,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:03:02,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:03:02,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:03:02,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:02:59" (1/3) ... [2020-10-27 01:03:02,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b9bba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:03:02, skipping insertion in model container [2020-10-27 01:03:02,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:00" (2/3) ... [2020-10-27 01:03:02,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b9bba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:03:02, skipping insertion in model container [2020-10-27 01:03:02,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:03:02" (3/3) ... [2020-10-27 01:03:02,393 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0320b.c [2020-10-27 01:03:02,406 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:03:02,418 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:03:02,433 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:03:02,464 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:03:02,465 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:03:02,465 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:03:02,465 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:03:02,465 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:03:02,465 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:03:02,466 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:03:02,466 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:03:02,491 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states. [2020-10-27 01:03:02,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-27 01:03:02,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:03:02,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:03:02,499 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:03:02,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:03:02,505 INFO L82 PathProgramCache]: Analyzing trace with hash 313277541, now seen corresponding path program 1 times [2020-10-27 01:03:02,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:03:02,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [319733343] [2020-10-27 01:03:02,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:03:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:03:03,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:03:03,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:03:03,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 01:03:03,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:03:03,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 519 [2020-10-27 01:03:03,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:03:03,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:03:03,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 01:03:03,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:03:03,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 01:03:03,735 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 01:03:03,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:03:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:03:03,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:03:03,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:03:03,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:03:03,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:03:03,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-27 01:03:03,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:03:03,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:03:03,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:03:03,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:03:03,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:03:03,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:03:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:03:03,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:03:03,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:03:03,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 01:03:03,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:03:03,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 01:03:03,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:03:03,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:03:03,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:03:03,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:03:03,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:03:03,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:03:03,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [319733343] [2020-10-27 01:03:03,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:03:03,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 01:03:03,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290600800] [2020-10-27 01:03:03,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 01:03:03,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:03:03,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 01:03:03,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 01:03:03,943 INFO L87 Difference]: Start difference. First operand 272 states. Second operand 4 states. [2020-10-27 01:03:04,288 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 01:03:05,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:03:05,505 INFO L93 Difference]: Finished difference Result 533 states and 862 transitions. [2020-10-27 01:03:05,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 01:03:05,507 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-27 01:03:05,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:03:05,522 INFO L225 Difference]: With dead ends: 533 [2020-10-27 01:03:05,522 INFO L226 Difference]: Without dead ends: 265 [2020-10-27 01:03:05,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:03:05,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-10-27 01:03:05,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2020-10-27 01:03:05,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-10-27 01:03:05,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 361 transitions. [2020-10-27 01:03:05,612 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 361 transitions. Word has length 18 [2020-10-27 01:03:05,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:03:05,613 INFO L481 AbstractCegarLoop]: Abstraction has 265 states and 361 transitions. [2020-10-27 01:03:05,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 01:03:05,613 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 361 transitions. [2020-10-27 01:03:05,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 01:03:05,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:03:05,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:03:05,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:03:05,615 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:03:05,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:03:05,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1155988783, now seen corresponding path program 1 times [2020-10-27 01:03:05,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:03:05,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342436242] [2020-10-27 01:03:05,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:03:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 01:03:05,720 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 01:03:05,721 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 01:03:05,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:03:05,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:03:05 BoogieIcfgContainer [2020-10-27 01:03:05,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:03:05,752 INFO L168 Benchmark]: Toolchain (without parser) took 6222.45 ms. Allocated memory was 160.4 MB in the beginning and 204.5 MB in the end (delta: 44.0 MB). Free memory was 134.3 MB in the beginning and 69.7 MB in the end (delta: 64.6 MB). Peak memory consumption was 109.4 MB. Max. memory is 8.0 GB. [2020-10-27 01:03:05,753 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 160.4 MB. Free memory is still 132.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:03:05,754 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.30 ms. Allocated memory is still 160.4 MB. Free memory was 133.7 MB in the beginning and 136.4 MB in the end (delta: -2.7 MB). Peak memory consumption was 27.5 MB. Max. memory is 8.0 GB. [2020-10-27 01:03:05,755 INFO L168 Benchmark]: Boogie Preprocessor took 224.60 ms. Allocated memory is still 160.4 MB. Free memory was 136.4 MB in the beginning and 129.1 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-10-27 01:03:05,756 INFO L168 Benchmark]: RCFGBuilder took 1881.34 ms. Allocated memory is still 160.4 MB. Free memory was 129.1 MB in the beginning and 91.9 MB in the end (delta: 37.2 MB). Peak memory consumption was 82.8 MB. Max. memory is 8.0 GB. [2020-10-27 01:03:05,757 INFO L168 Benchmark]: TraceAbstraction took 3365.10 ms. Allocated memory was 160.4 MB in the beginning and 204.5 MB in the end (delta: 44.0 MB). Free memory was 91.9 MB in the beginning and 69.7 MB in the end (delta: 22.2 MB). Peak memory consumption was 66.2 MB. Max. memory is 8.0 GB. [2020-10-27 01:03:05,761 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 160.4 MB. Free memory is still 132.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 734.30 ms. Allocated memory is still 160.4 MB. Free memory was 133.7 MB in the beginning and 136.4 MB in the end (delta: -2.7 MB). Peak memory consumption was 27.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 224.60 ms. Allocated memory is still 160.4 MB. Free memory was 136.4 MB in the beginning and 129.1 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1881.34 ms. Allocated memory is still 160.4 MB. Free memory was 129.1 MB in the beginning and 91.9 MB in the end (delta: 37.2 MB). Peak memory consumption was 82.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3365.10 ms. Allocated memory was 160.4 MB in the beginning and 204.5 MB in the end (delta: 44.0 MB). Free memory was 91.9 MB in the beginning and 69.7 MB in the end (delta: 22.2 MB). Peak memory consumption was 66.2 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: 1.6s, 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, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=272occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s 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...