/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_0530b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:03:07,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:03:07,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:03:07,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:03:07,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:03:07,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:03:07,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:03:07,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:03:07,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:03:07,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:03:07,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:03:07,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:03:07,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:03:07,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:03:07,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:03:07,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:03:07,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:03:07,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:03:07,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:03:07,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:03:07,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:03:07,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:03:07,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:03:07,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:03:07,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:03:07,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:03:07,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:03:07,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:03:07,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:03:07,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:03:07,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:03:07,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:03:07,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:03:07,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:03:07,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:03:07,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:03:07,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:03:07,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:03:07,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:03:07,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:03:07,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:03:07,957 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 01:03:08,012 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:03:08,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:03:08,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:03:08,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:03:08,018 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:03:08,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:03:08,018 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:03:08,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:03:08,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:03:08,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:03:08,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:03:08,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:03:08,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:03:08,021 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:03:08,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:03:08,022 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:03:08,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:03:08,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:03:08,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:03:08,022 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:03:08,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:03:08,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:03:08,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:03:08,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:03:08,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:03:08,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:03:08,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:03:08,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:03:08,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:03:08,025 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:03:08,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:03:08,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:03:08,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:03:08,542 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:03:08,543 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:03:08,544 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0530b.c [2020-10-27 01:03:08,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a6a20470/948ef5f906654036a90caf20146891f8/FLAGbaf8d51e9 [2020-10-27 01:03:09,394 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:03:09,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_0530b.c [2020-10-27 01:03:09,417 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a6a20470/948ef5f906654036a90caf20146891f8/FLAGbaf8d51e9 [2020-10-27 01:03:09,621 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a6a20470/948ef5f906654036a90caf20146891f8 [2020-10-27 01:03:09,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:03:09,633 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:03:09,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:03:09,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:03:09,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:03:09,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:03:09" (1/1) ... [2020-10-27 01:03:09,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d4ef405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:09, skipping insertion in model container [2020-10-27 01:03:09,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:03:09" (1/1) ... [2020-10-27 01:03:09,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:03:09,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:03:10,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:03:10,245 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:03:10,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:03:10,457 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:03:10,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:10 WrapperNode [2020-10-27 01:03:10,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:03:10,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:03:10,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:03:10,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:03:10,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:10" (1/1) ... [2020-10-27 01:03:10,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:10" (1/1) ... [2020-10-27 01:03:10,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:10" (1/1) ... [2020-10-27 01:03:10,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:10" (1/1) ... [2020-10-27 01:03:10,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:10" (1/1) ... [2020-10-27 01:03:10,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:10" (1/1) ... [2020-10-27 01:03:10,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:10" (1/1) ... [2020-10-27 01:03:10,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:03:10,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:03:10,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:03:10,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:03:10,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:10" (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 01:03:10,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:03:10,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:03:10,741 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:03:10,741 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2020-10-27 01:03:10,741 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2020-10-27 01:03:10,742 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2020-10-27 01:03:10,742 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-10-27 01:03:10,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2f [2020-10-27 01:03:10,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2f [2020-10-27 01:03:10,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_tanf [2020-10-27 01:03:10,744 INFO L138 BoogieDeclarations]: Found implementation of procedure tan_float [2020-10-27 01:03:10,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-10-27 01:03:10,744 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:03:10,745 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:03:10,745 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:03:10,746 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:03:10,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:03:10,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-27 01:03:10,746 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2020-10-27 01:03:10,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 01:03:10,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:03:10,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:03:10,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:03:10,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 01:03:10,747 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2020-10-27 01:03:10,747 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2020-10-27 01:03:10,747 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-10-27 01:03:10,747 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2f [2020-10-27 01:03:10,747 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2f [2020-10-27 01:03:10,748 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_tanf [2020-10-27 01:03:10,748 INFO L130 BoogieDeclarations]: Found specification of procedure tan_float [2020-10-27 01:03:10,748 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-10-27 01:03:10,749 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:03:10,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:03:10,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:03:10,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 01:03:10,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:03:12,332 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:03:12,332 INFO L298 CfgBuilder]: Removed 65 assume(true) statements. [2020-10-27 01:03:12,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:03:12 BoogieIcfgContainer [2020-10-27 01:03:12,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:03:12,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:03:12,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:03:12,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:03:12,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:03:09" (1/3) ... [2020-10-27 01:03:12,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64499f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:03:12, skipping insertion in model container [2020-10-27 01:03:12,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:03:10" (2/3) ... [2020-10-27 01:03:12,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64499f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:03:12, skipping insertion in model container [2020-10-27 01:03:12,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:03:12" (3/3) ... [2020-10-27 01:03:12,344 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0530b.c [2020-10-27 01:03:12,357 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:03:12,363 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:03:12,378 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:03:12,410 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:03:12,410 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:03:12,410 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:03:12,410 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:03:12,411 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:03:12,411 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:03:12,411 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:03:12,411 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:03:12,437 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states. [2020-10-27 01:03:12,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 01:03:12,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:03:12,445 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 01:03:12,445 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:03:12,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:03:12,453 INFO L82 PathProgramCache]: Analyzing trace with hash 3396939, now seen corresponding path program 1 times [2020-10-27 01:03:12,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:03:12,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771478183] [2020-10-27 01:03:12,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:03:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:03:12,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:03:13,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:03:13,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 01:03:13,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:03:13,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 860 [2020-10-27 01:03:13,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:03:13,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:03:13,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 01:03:13,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:03:13,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 01:03:14,049 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 01:03:14,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:03:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:03:14,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:03:14,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:03:14,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:03:14,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:03:14,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-27 01:03:14,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:03:14,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:03:14,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:03:14,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:03:14,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:03:14,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:03:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:03:14,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:03:14,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:03:14,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 01:03:14,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:03:14,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-27 01:03:14,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:03:14,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:03:14,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:03:14,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:03:14,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:03:14,355 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 01:03:14,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771478183] [2020-10-27 01:03:14,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:03:14,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 01:03:14,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300069219] [2020-10-27 01:03:14,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 01:03:14,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:03:14,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 01:03:14,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 01:03:14,384 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 4 states. [2020-10-27 01:03:14,555 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-27 01:03:15,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:03:15,963 INFO L93 Difference]: Finished difference Result 539 states and 873 transitions. [2020-10-27 01:03:15,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 01:03:15,965 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-27 01:03:15,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:03:15,979 INFO L225 Difference]: With dead ends: 539 [2020-10-27 01:03:15,980 INFO L226 Difference]: Without dead ends: 268 [2020-10-27 01:03:15,988 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 [2020-10-27 01:03:16,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-10-27 01:03:16,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2020-10-27 01:03:16,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-10-27 01:03:16,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 361 transitions. [2020-10-27 01:03:16,068 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 361 transitions. Word has length 19 [2020-10-27 01:03:16,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:03:16,069 INFO L481 AbstractCegarLoop]: Abstraction has 268 states and 361 transitions. [2020-10-27 01:03:16,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 01:03:16,069 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 361 transitions. [2020-10-27 01:03:16,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-27 01:03:16,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:03:16,070 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] [2020-10-27 01:03:16,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:03:16,073 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:03:16,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:03:16,073 INFO L82 PathProgramCache]: Analyzing trace with hash 989773821, now seen corresponding path program 1 times [2020-10-27 01:03:16,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:03:16,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133432396] [2020-10-27 01:03:16,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:03:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 01:03:16,174 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 01:03:16,174 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 01:03:16,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:03:16,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:03:16 BoogieIcfgContainer [2020-10-27 01:03:16,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:03:16,206 INFO L168 Benchmark]: Toolchain (without parser) took 6577.73 ms. Allocated memory was 156.2 MB in the beginning and 195.0 MB in the end (delta: 38.8 MB). Free memory was 130.9 MB in the beginning and 81.1 MB in the end (delta: 49.9 MB). Peak memory consumption was 91.0 MB. Max. memory is 8.0 GB. [2020-10-27 01:03:16,207 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 156.2 MB. Free memory was 130.3 MB in the beginning and 130.2 MB in the end (delta: 80.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:03:16,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 820.08 ms. Allocated memory is still 156.2 MB. Free memory was 130.3 MB in the beginning and 131.9 MB in the end (delta: -1.5 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. [2020-10-27 01:03:16,208 INFO L168 Benchmark]: Boogie Preprocessor took 202.83 ms. Allocated memory is still 156.2 MB. Free memory was 131.9 MB in the beginning and 124.5 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-10-27 01:03:16,209 INFO L168 Benchmark]: RCFGBuilder took 1671.82 ms. Allocated memory is still 156.2 MB. Free memory was 124.5 MB in the beginning and 83.6 MB in the end (delta: 40.9 MB). Peak memory consumption was 79.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:03:16,210 INFO L168 Benchmark]: TraceAbstraction took 3867.24 ms. Allocated memory was 156.2 MB in the beginning and 195.0 MB in the end (delta: 38.8 MB). Free memory was 83.6 MB in the beginning and 81.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 41.4 MB. Max. memory is 8.0 GB. [2020-10-27 01:03:16,214 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 156.2 MB. Free memory was 130.3 MB in the beginning and 130.2 MB in the end (delta: 80.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 820.08 ms. Allocated memory is still 156.2 MB. Free memory was 130.3 MB in the beginning and 131.9 MB in the end (delta: -1.5 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 202.83 ms. Allocated memory is still 156.2 MB. Free memory was 131.9 MB in the beginning and 124.5 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1671.82 ms. Allocated memory is still 156.2 MB. Free memory was 124.5 MB in the beginning and 83.6 MB in the end (delta: 40.9 MB). Peak memory consumption was 79.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3867.24 ms. Allocated memory was 156.2 MB in the beginning and 195.0 MB in the end (delta: 38.8 MB). Free memory was 83.6 MB in the beginning and 81.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 41.4 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 497, overapproximation of bitwiseAnd at line 591, overapproximation of someUnaryFLOAToperation at line 624, overapproximation of someBinaryArithmeticFLOAToperation at line 596. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L79-L81] static const float two25_scalbn = 3.355443200e+07, twom25_scalbn = 2.9802322388e-08, huge_scalbn = 1.0e+30, tiny_scalbn = 1.0e-30; [L149] static const int init_jk_krempio[] = {4, 7, 9}; [L151-L155] 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, }; [L157-L159] static const float zero_krempio = 0.0, one_krempio = 1.0, two8_krempio = 2.5600000000e+02, twon8_krempio = 3.9062500000e-03; [L334-L352] 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, }; [L354-L360] 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}; [L362-L371] 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; [L491-L499] 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 tan_float(x) [L582] float y[2], z = 0.0; [L583] __int32_t n, ix; [L586] ieee_float_shape_type gf_u; [L587] gf_u.value = (x) [L588] EXPR gf_u.word [L588] (ix) = gf_u.word [L591] ix &= 0x7fffffff [L592] COND FALSE !(ix <= 0x3f490fda) [L595] COND TRUE !((ix) < 0x7f800000L) [L596] return x - x; [L596] return x - x; [L625] RET, EXPR tan_float(x) [L625] float res = tan_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_0530b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 275 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 355 SDtfs, 16 SDslu, 276 SDs, 0 SdLazy, 410 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s 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=275occurred 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, 1.5s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 2808 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...